Chapter 1 Introduction 1.1 Background Trees and forests are critical resources for people’s livelihoods, environmental conservation and national economic development. In response, the institutional capacity building of the Forest Sector Development Program of Ethiopia has embarked on a joint project prepared by MEF and UNDP. This project will have duration of five years and be financially supported by the Norwegian Government. This project aims at contributing to the people’s livelihood improvement of the local communities by making available commercial scale fuel wood, timber, fruit, and fodder and other non-timber forest products while halting and reversing the present trend of severe environmental degradation in Alaje, Endamehoni, Wadla, Mekit, Delant, Dessie Zuria, Sodo, Lemo and Mirab Abaya districts of Tigray, Amhara and SNNP regional states through promoting a short rotation commercial plantation and rehabilitating and use of degraded sites. The short rotation forest plantations will focus primarily on indentifying site specific fast growing indigenous and exotic tree species. Through this plantation program, it is planned to afforest fast growing tree species on over 10 000 ha tracts of land over the coming 2-3 years. This target will be achieved if and only if right from the onset a careful site quality and suitability assessment for plantation and proper planning starting from planting material selection to plantation management is considered and action plan is in place. In addition, in order to ensure sustainability and profitability of this plantation program different modalities will be applied such privatization of the plantation in different forms. Furthermore, the project will also intend to assist local farmers to adopt agroforestry systems including establishment woodlots/ tree lots, where feasible, plant trees in degraded catchments areas. This will be achieved through fostering increased fruit (including fruit tree and tree planting) production for enhanced household food self-sufficiency and increased income generation and enhancing the 1 ability to conserve and protect the environment. By and large, the project will encourage and support farmers to transform the current smallholder subsistence farming into economically viable forest product businesses. The project will also ensure sustainable agricultural production and help combating climate change in particular and safeguard the environment in general. Fittingly, it is unequivocal to involve all concerned stakeholders including the local community, researchers, development agents and policy making people starting from site selection to implementing of project activities. Correspondingly, a Technical Team of four experts from the Ethiopian Environment and Forest Research Institute is commissioned to carry out a quick field survey in order mainly to identify plantation and rehabilitation sites along with indentifying fast growing short rotation tree species and other relevant measures with terms of references as outlined below: 1.2 Mission Terms of Reference This field mission; 1. Review the local biophysical attributes (climate, topography and soil) and the feasibility of establishing plantations and rehabilitation meso-catchments in the selected districts of Amhara, Tigray and SNNPRS. In this context, factors to consider are soil type, slope, existing trees and vegetation (in the immediate area and similar areas nearby), current and potential land–use practices. 2. Review the land use and socio-economic conditions and its suitability for the envisaged plantations 3. Determine the scale and location of the plantations and rehabilitation sites in each districts 4. Assess technologies and the various models of short rotation plantation establishment in other countries 5. Based on the available literature and knowledge, identify the tree species suited to plantations and rehabilitation in the targeted districts. 2 6. Define the scale of land suitability for plantations (although it is recognized that sites may vary in their suitability for various species) suitability can be done for candidate species (as class1, 2, 3, 4) based on guidelines for land evaluation. 7. Recommend the most suitable management system for the selected tree species including the possible business model for each and 8. Determine the location of infrastructures including nurseries, store and access roads both for the plantation and nursery management 9. Assess the level of investment needed to stimulate short rotation plantations the selected districts 10. If possible develop a geospatial map indicating the location of the nurseries and plantations 11. Determine the profitability of investment in terms of Internal Rate of Return (IRR) and Net Present value (NPV) and the rotation period required to breakeven. 1.3 Objective The specific objectives of this field visits were to: a) Conduct field assessment both for the plantation and rehabilitation sites selected by the local governments; b) Assess the feasibility of establishing plantations dedicated for the fuel and construction industry of Ethiopia and c) Review site quality and suitability for establishing plantations of selected species. 3 Chapter 2 Study Methodology In accordance with the specific objectives labeled, the Technical Team designed various methodologies to extract relevant biophysical and socio-economic data. In principle, the following methodologies were employed. 1) Conducting field assessment both for the plantation and rehabilitation sites selected by the local governments. In order to evaluate the suitability of candidate sites for plantation and rehabilitation as proposed by local authorities were studied taking in to account the following thoughts: -Evaluation of the procedure and criteria used by the local authorities, experts and farmers through group discussion, -Evaluation of the level of severity, cost and time needed to deliver short rotation plantation and faster rate of rehabilitation through consultation and expert judgment. -Evaluation of water resource, nursery and road availability through site supervision and -Evaluation of the commitment of the local government and the community in supporting the project implementation and other contribution to its success through discussion 2) Assess the feasibility of establishing plantations dedicated for the wood based industry of Ethiopia -Through designing proper action plan for increasing seedling survival rate and forest productivity -Through biomass estimation for fuel and industry uses and 4 -Through computing the amount of CO2-e to be trapped by each tree species and financial profitability of the venture 3) Review site quality and suitability for establishing plantations of selected species. -Data such as elevation, slope, aspect, landform, soil type, mean annual rainfall (see Fig 1), agroecology, and termite risk were generated during the field visit for the respective sites, -Data on geographic, topographic, and ecological requirement of each candidate tree species was reviewed and -Site suitability for plantation was evaluated according to FAO (1976) by matching the site characteristics with the tree species requirement. We adopted interpretation of the survey and secondary data collected from the respective district offices on the biophysical settings and ranked the land according to a five class system. The main limiting factors observed will determine the classes of the sites for afforestation. The classes are described as: Class 1: Suitable land with negligible limitations which is highly productive requiring only simple management practices to maintain economic production. Class 2: Suitable land with minor limitations which either reduce production or require more than the simple management practices of Class 1 land to maintain economic production. Class 3: Suitable land with moderate limitations which either further lower production or require more than those management practices of Class 2 land to maintain economic production. Class 4: Marginal land with severe limitations which make it doubtful whether the inputs required to achieve and maintain production outweigh the benefits in the long term (presently considered unsuitable for afferstation due to the uncertainty of the land to achieve sustained economic production). Class 5: Unsuitable land with extreme limitations that preclude its use for the proposed purpose 5 -Criteria for matching tree species for plantation to a site: Criteria selection for matching a tree species to the proposed plantation site was based on available literature on the species, expert knowledge in consultation with the local extension agents and site available information. The criteria mainly based on the local environmental factors favorable for particular tree species survival, the anticipated site amelioration by the presence of trees in the landscape and the basic demands of the community for reaping income from wood products and improving the living conditions at rural settings. -Site Selection Criteria for rehabilitation: The land class identified as marginal (class 4) with severe limitations for afforestation and the unsuitable land with extreme limitations precluded for afforestation represented as class 5 are considered for rehabilitation. These lands have more or less rocky substrate, poor and very dry soil, lesser native grass and woody vegetation cover, extreme slope near 100%, and exposed to continuous soil erosion during the precipitation seasons. All the rehabilitation sites demand stone bund where impossible to dig for bench terracing, trench digging for moisture harvesting along the contour at different slope gradients. 6 Chapter 3 Project Sites Description and Constraints 3.1. Endamehoni district 3.1.1. Hargibeda plantation site Bio-physical Settings Hargibeda is a site proposed for the development of short rotation plantation and is located at 0561527 E and 1412035 N UTM at an elevation of 2260 m.a.s.l., which is categorized as a highland with a temperate agro-ecology. The area apportioned for this plantation is estimated over 1000 hectares. The physiographic position is featured as a steep cliff and an escarpment having a slope range of 70-80%. The land form is, dominantly, a type of rectilinear convex combination. The geology of the site is dominated by basalt and volcano-clastic materials, where the Entisols and Regosols are predominating. These soils highly depleted have a shallow depth. The natural vegetation is consisting of trees and shrubs such as Albizia amara, Opuntia ficus-indica, aloes, reeds at a lower slope, Juniperus procera. Planted trees were also recorded of which Eucalyptus camaldulensis, E. globulus, Acacia saligna, and Grevilea robusta are the frequent ones. Socio-economic conditions The number of residents in Hargibeda is reported about 250 households with a total population of 1250. Subsistence agriculture is the major economic stay in the site in which barely, wheat, and tef have a significant contribution. Small scale livestock production is widespread although the productivity is low. Moreover, a Particle Board Factory is now operational in Maychew town, the zonal capital, which demands enormous plantations to manufacturing of chip woods and other by products. However, the current supply of raw materials is far below the demand. 7 Development efforts and constraints There are ongoing good efforts to rehabilitate the degraded areas through introducing and enforcing area enclosure and enrichment plantation. So far encouraging outcomes are recorded with which disappearing species are regenerating and thereby the ecosystem services are now being functional slowly. However, still land degradation, shortage of moisture, food insecurity, shortage of animal feed, shortage of wood for fuel and construction, nutrient depletion, pest and disease infestation on cactus, low agricultural yield, inadequate soil and water conservation structures and lack of their maintenance remain pressing challenges in the site. Plate-1: Hargibeda plantation site view, Mehoni district 8 3.1.2. Menkere rehabilitation site Bio-physical Settings Menkere is a site delineated for rehabilitation and is located at 0561691 E, 1408891 N. The site situated an elevation of 2423 m.a.s.l. which makes it a highland and a Dega agroecology. The topography is rugged mountainous with a land form of rectilinear and concave combination. The slope the site is 70%. The geology is dominated as a basement Precambrian and a tertiary volcanic where basalt rocks and pyroclastic materials are observed here and there. The dominant soil types on the side slopes are Regosols and at foot slopes the Fluvisols predominate. The site coverage is approximately 100 ha at different landscape positions. The dominant natural vegetation are trees and shrubs such as Albizia amara, Acacia abayssinica, Opuntia ficus-indica, aloes, reeds, Juniperus procera, Euclea shimperi, Dodonea viscosa, Olea africana. Eucalyptus globlus species are the most dominant planted species. Socio-economic conditions The inhabitants of Menkere are about 200 HHs. A gravel road passes by the site but access to the actual rehabilitation site is lacking. Major land uses of the site are subsistence farming and small scale livestock production dominantly. The inhabitants are vulnerable due to drought and insufficient land for cultivation. In order to reverse land degradation, the local authorities enforced the site to be closed for use. It has been supported by different donors; one of which is SLM 1 which lasted its intervention for three years. During this time the site is rehabilitated well, plants were regenerated to the extent the harbor various precious wild animals including leopard, hyena, apes and etc. Furthermore, the site has a great potential for horticulture at the foot slope season. 9 Development efforts and constraints Despite some SWC and enclosure efforts, challenges and constraints like land degradation, shortage of moisture, nutrient depletion, pest and disease infestation on cactus, decline of crop yield, inadequate soil and water conservation structures and lack of their maintenance are still prevailing and require serious attention if success is sought in reforestation and afforestation. Plate-2: Menkere rehabilitation site, Mehoni district 10 3.2. Alaje district 3.2.1. Betmera (Genji) Plantation and rehabilitation site Bio-physical conditions Betemera is a site located at the northern tip of the district at 0556619 E and 1439709 N. The area allocated for plantation and rehabilitation are 1200 and 2500 ha, respectively. The altitude reading of the site is 2447 masl, which is a highland and Dega agro-ecology. The physiographic scenery is undulating terrain with a rectilinear-convex combination landform and a slope of 70%. The soil types are more of volcanic origin and are classified as phase stony Regosols on the side slope and at a lower landscape position Cambisols and Fluvisols predominate. Significant gullies are observed at the slope sides, indeed, an urgent action is needed to reverse this dreadful challenge. The widespread natural vegetation are Olea africana, Dodonia angistifolia, Accacia abyssinica, Opuntia ficus-indica, aloe, reed, Juniperus procera, Vernonia amygdalina. Whereas, the planted trees and shrubs include Eucalyptus globulus, E. camaldulensis, A. decurrense, A. saligna, Rhamnus prenoides, Leucaena leucocephala, Tree lucerne, Sesbania sesban and apple trees. Spring water is also available in this site where an irrigation practice is possibly undertaken. Socio-economic conditions About 7736 inhabitants inhabit in 1386 HH. This is an indication that there is a good number of workforces who can participate in development activities including in private short rotation plantation and rehabilitation of degraded lands. Although, the main economic activity is mixed farming system by integrating irrigated vegetable production with small scale livestock production, the community is still categorized as food insecure. Although there are on-going massive afforestation/reforestation activities, the survival rate of the seedlings is not good due to moisture stress and inappropriate management of seedlings.. 11 Development efforts and constraints The area is known for its effort in community soil and water conservation activities. However, the community is at standstill condition in terms of income generation and livelihood improvement. This justifies that still the local community and authorities must do a lot in order to harness and use the natural resources. Plate-3: Betemara (Genji) Plantation & Rehabilitation site, Alaji district 12 3.3 Wadla District 3.3.1 Shireta (027) Plantation site Bio-physical Settings Shireta is a site proposed for the development of plantation forest and has an area of 100 hectares and is situated at 0485473 E and 1281604 N. The site is soaring to an elevation of 2833 masl, which makes it again a highland and Dega agro-ecology. The rugged topography has a sharp slope of 100%. The geology of the site is dominated by a tertiary volcanic where Regosols on the side slope and Vertisols at a lower slope predominate. The steep slope coupled with a rocky surface exacerbate soil erosion hazard. As a result, shallow soils and many and bigger gullies are formed. Euphorbia Abyssinica, Acacia Abyssinica, and Cordia Africana are good examples of natural vegetation whereas Eucalyptus camaldulensis, Tree lucerne, Sesbania sesban are some of dominant planted species, which were reordered during the field visits. However, some planted species such as Eucalyptus were wilting due to chronic shortage of moisture. It is not uncommon to observe crossing some rivers like Zhita River, which is one of the largest rivers in the catchment. Socio-economic conditions Land use practices in the site are rainfed, irrigated agriculture, plantation and livestock production. Wheat and tef are the major crops that are cultivated during the main rainy season. One of the major predicaments of the site is its inaccessibility. Thus, for the best use of the site, road access is mandatory. 13 Development efforts and constraints Frequent problems in the site that prompt yield reduction and house hold level food insecurity are frosts, livestock disease, land degradation, drought and insect pest infestation. Additionally, inadequate courage and commitment were placed to halt the changes. Thus, in order to uplift the communities in the site massive effort such as community S&W activities, water harvesting technologies and reforestation and afforestion are obligatory. Plate-4: Shireta Plantation Site View, Wadla district 3.3.2. Zugera (015) Plantation and Réhabilitation site and Quana (016) Plantation site Bio-physical Settings Zugera is a site selected for both plantation and rehabilitation and Quana is allocated for plantation only. These sites are located at 0478319 E and 1284785 N UTM and at an altitude of 14 2820 masl, which make them a highland and Dega agro-ecology. They are steeply and rocky cliffs landscape and the slope is 100%. The geology is a tertiary volcanic and a Precambrian basement is underlying the crystalline basaltic rocks. In this site various soil types were identified at different spots. At summit, Cambisols are predominant but at side slope and lower positions Regosols and Vertisols were observed, respectively. Soils, particularly, at the side slope have a shallow depth, which definitely, this property will affect species selection for short rotation plantation. Furthermore, soil erosion particularly gully formations are aggravated in middle slope position. Dominant natural trees and shrubs are Ficus vasta, Dodonea angustifolia, Olea africana, Acacia abyssinica, and Cordia Africana whereas Rhamnus preminoides, Coffee robusta, mango, banana, avocado are introduced at various times. Specifically, Coffee robusta, mango, banana and avocado are now performing well and become promising cash crops at the lower slope position where Vertisols and adequate water are available. River Zhita is the major water source for this site, although, appropriate water harvesting technology and water management techniques is a prerequisite to sustainably use the River and solve the all-time pressing water issue. Socio-economic conditions A mixed farming system of rain-fed and irrigated agriculture is practiced as a dominant source income. In this regard, wheat and Teff are grown widely. One of the major pressing issues in this site is its nature of inaccessibility. Thus, in order to unveil the potential of the site access road and other relevant infrastructure is mandatory. Development efforts and constraints Livestock disease, land degradation, drought, insect pest infestation, low agricultural yield, inadequate soil and water conservation structures and lack of their maintenance are some of the challenges that the local community are facing. 15 Plate-5: Quana Plantation & Rehabilitation Site View, Wadla district 3.4 Meket District 3.4.1 Jirele (020) Akat (022) Plantation sites Biophysical Settings Jirele and Akat sites are proposed for plantation purposes. The proposed sites were chosen in consultation amongst the Kebele leaders, experts from the District Agricultural Office and other relevant stakeholders. Basically, the proposed plantation sites are located in Tekeze watershed broadly at Meket District, North Wollo, Amhara region at UTM of 0478319 E-1284785 N. The sites have an altitude of 2813 m.a.s.l with a slope ranging from 50-80%. The mean annual 16 rainfall is 800 mm. The sites are extremely affected by a structural movement and the topography is extremely rugged. Massive crystalline rocks outcrop to the surface over vast areas. Parent materials include Tertiary and Quaternary volcanic and colluvial from the highland plateau. Dominantly, the soil types are Cambisol-Regosol-Vertisol along the gradient. Accelerated erosion and extreme stoniness are major features of the sites. Dominant natural veg. Hypericum, Dodonea viscosa, Carisa spinarum, Rosa abyssinica, Maytenus sp., Dombeya torrida, Dovyalis abyssinica, Embus, Juniperus procera, Planted: Eucalyptus globulus, E. camaldulensis Socio-economic Condition The total coverage and inhabitants of the sites are 1200 ha and 982 HH with a population of 5532, respectively. The proposed plantation sites embrace Dega, Weyna Dega and Kola agroecological zones. Major land uses of the sites are mixed crop livestock farming, irrigation and plantation. Barley, wheat, flax, potato, bean, and pea are the major crops grown in these sites. Plantation, natural forest, livestock, irrigated agriculture. In spite of huge resource availability the farming community of the sites are food insecure and depends on aid largely. Constraints and Development Efforts The major constraints of the sites are recorded as hail, land degradation, soil nutrient depletion, soil erosion, shallow soil depth. In order to halt the constraints massive community effort has been placed such as reforestation, soil and water conservation activities and zero grazing. Introducing of zero grazing is a promising and an innovation venture, which will assist in reducing soil compaction and all other consequences. Nevertheless the survival rate of the planted seedlings is discouraging. This could be mainly due to the inappropriate size of the polythene tube, use of poor quality seeds and seedlings and the substrate used to fill the polythene tubes. In addition, chronic shortage of water during the dry seasons and lack proper tree management exacerbated the predicaments. Furthermore, the sites need suitable soil and water conservation structure in order to combat gully formation and reduce the slope length so that more soil and water can be conserved to enhance survival rate of seedlings. 17 Plate-6: Jirele and Akat Plantation Site View, Mekit district 3.4.2 Debko (026) Aydefer (027) Rehabilitation site Biophysical Settings Debko and Aydefer sites are proposed for rehabilitation purposes up on the agreement of the local leadership on the matter. These sites are located at 0492275 E, 1308808 N and are characterized by rugged topography with a slope of 35% and an altitude of 2016 m.a.s.l. The soils of these sites developed almost exclusively on trap series volcanics. The soils are generally stony phase of Cambisols and Fluvisols predominate at flatter land form. Side slopes of the sites ate intensively cultivated, which caused severe erosion and depletion of nutrients. The dominant natural vegetations are Euclea shimperi, aloes, Euphorbia triculli, Dodonea viscose and amongst the planted ones Eucalyptus globulus, E. camaldulensis Predominate. 18 Socio-economic Conditions The major land uses in these sites are rain fed and irrigated agriculture and livestock production. Furthermore, stone quarrying is an active venture to generate revenue in these sites, which is actually aggravate soil erosion in particular and land degradation in general. Constraints and Development Efforts Hail, land degradation, rockiness, low soil fertility, soil erosion and termites are major constraints identified locally. In response, through mobilization of the community in these sites to reverse land degradation such as massive plantation effort, enforcing zero grazing and practicing of soil and water conservation activities. Beside, the existing community Nursery needs upgrading so that it can serve as sources good quality and quantity of seedlings. Among the many causes for enormous failure of the transplanted seedlings are lack of moisture availability and absent plan for proper forest management. The sites are inaccessible, hence; access road to the site should be constructed. Plate-7: Debko and Aydefer Plantation & Rehabilitation Site View, Meket district 19 3.5 Delanta District 3.5.1 Mekelet Biophysical Settings Delanta is one of the northern Wollo districts where rainfed agriculture is unsuccessful due to recurrent drought. Drought is recurring once in four years time. In connection to the present study Mekelet Kebele is selected both for plantation and rehabilitation purposes. The plantation site is named as Zeselassie and Abunay is the place where rehabilitation of degraded lands will be implemented. Basically, Mekelet is found in Delanta 0535266 E, 1298660 N at 3320 m.a.s.l. The mean annual rainfall is 900 mm. agro-ecologically; the sites are categorized as Dega. The Belg season of the sites commence in the months of November and December and extends to the month of June. Dominant soil types of the two sites are Fluvisols, which has been derived from volcanic activities. The physiography of the area was shaped due to denudational and depositional processes. The landform is mainly rectilinear- concave combination. Termite is a problem in some parts of the sites. Major land uses of the sites are mixed crop and livestock farming, irrigated agriculture and plantations. Natural vegetation of the sites are Asta, Amcha, and Koso. Planted vegetations are dominated by Eucalyptus spp., tree Lucerne, Juniperous and apples. Community Nursery is available. Socio-economic Conditions The number of household in Mekelet is 650, where 4490 people are expected to inhabit currently. Rainfed and irrigated agriculture, forest plantations of Eucalyptus globulus and Cuppresus lusitanica, and livestock production are major land use activities. 20 Constraints and Development Effort Fundamental impediments in Mekelet site, which encumber the growth and development, are recurrent drought, frost, inadequate food and feed, moisture availability, biodiversity losses, land degradation and inaccessibility. The community is committed to halt these predicaments through implementing hillside and stone bund terrace and plantation. Chronic food shortage, dependent on food aid, no endorsed bylaw on grazing management, lack of animal fodder, apple production possible but training essential. Plate-8: Mekelet Plantation & Rehabilitation Site View, Delanta district 21 Plate-9: Abunay Plantation Site View, Delanta district 3.6 Dessie Zuria 3.6.1 Gelsha Bukasa and Haroye Biophysical Settings Dessie Zuria is one of the most vulnerable and food insecure districts of Southern Wollo. This district embraces 17 Kebeles with a total population of well over 175 000. This district entails 4 distinct agro ecologies, i.e., Kola, Woynadega, Dega and Frost where all these are confined to the altitude range of below 1650 to over 3500 m.a.s.l. For the intended project, three Kebels are proposed, namely Gelsh Bukasa and Haroye for plantation and Atnt Ber for rehabilitation. The coverage of the plantation and rehabilitation sites is 1200 and 1600 ha, respectively. The diversity and density of vegetation in the impending project sites are varying over time. There was a speculation that 14 indigenous species were known longtime ago but now only few 22 Alpine species such as Amcha, Asta and Megera are left sporadically. Eculyptus spp. remains most preferred planted trees on which the local people do heavily depend on it for revenue generation. Natural grasses such as Guasa are also common in these sites. The dominant soil types at the crest are Umbrisols but Leptsols, Fluvisols and Vertsiols are common at mid and lower slope positions. Frequent land use practices in these sites are dominantly plantation for timber production, livestock and cultivation. However, farmers don’t prefer cultivation these days as rainfall distribution in the district is unreliable and unpredictable. Consequently, there is an indication of shifting from rainfed agriculture to livestock production and plantation. In the nearby sites, there are five Nurseries where they supply seedlings. However, the seedlings raised are mediocre due mainly to shortage and substandard quality of seeds. The sites are outof-the-way and far-flung. Socio-economic Conditions Gelsha and Hroye are drought prone areas where agricultural productivity declines drastically. As a result farmers have gradually shifted to livestock production and plantation as sources of income. Gelsh site has been enclosed for use for over three years. Consequently, there is a good sign of regeneration of grasses. Use of improved sheep and dairy cattle breeds will significantly improve the lives of the small holding farmers. During the field visit, it was also observed that the site has sufficient water resources both from rain and ground water sources. Good number of water ponds must be constructed in order to permanently alleviate the chronic water shortage, which is experienced there. Temperate fruit such as apples, pear and etc. can be candidate fruits that can improve the livelihood of the farmers in the shortest possible ways. 23 Constraints and Development Efforts The major predicaments of this district in general and the impending sites in particular are shortage of water, frost, soil acidity, shallow soil depth, deforestation and severe land degradation. As the result, the farming community hugely depends on year round foreign aid. Plate-10: Galesha Plantation & Rehabilitation Site View, Dese Zuria 24 Plate-11: Hroye Rehabilitation Site View, Desie Zuria 3.7 Sodo district (Gurage zone) 3.7.1 Amawte plantation site Bio-physical settings Amawte is a site allotted for plantation and is estimated to be about 1500 hectares and bears the highest elevation of 3040 masl at its peak which gives it a highland ecology. The site has a bi-modal rainfall with mean annual rainfall of 1021.7 mm and bears a maximum temperature of 25.4 oC and a minimum temperature of 8.6 oC. The physiographic setting having an average slope of 25% and is featured with undulating pasture land dominated by grass species, Cynodon dactylon. The parent material of the area is granite which resulted in Leptosols with acidic nature. The natural vegetation is dominated by Juniperus procera and Arundinaria alpina and the artificial regeneration has given rise to trees like Eucalyptus globulus and Grevillea robusta. 25 Socio-economic conditions Mixed agriculture is the major economic activity of the area where barley, wheat, pea, bean and enset predominate. It is observed that controlled grazing is in place where cattle are used to be tied in the middle of the pasture and graze within the radius of the rope and as the grass is completely grazed then the rope is elongated through time for the cattle to reach the grass. In such a way the farmers have a tradition of rotational grazing practice as a coping mechanism to overcome feed shortages and increase grazing efficiency. Seedlings of tree species such as Juniperus procera and Acacia decurrens, Eucalyptus globulus, Eucalyptus camaldulensis and Grevillea robusta, Malus domestica, Mangifera indica, Persia americana, Rhamnus prenoides are raised in a governmental and community nursery in the area and are distributed and planted, accordingly. Development efforts and constraints Although there are some efforts of soil and water conservation practices through community participation, land degradation on communal lands remain a series challenge due to overstocking and lack of proper animal husbandry. Incidences such as runoff and water erosion have also brought sedimentation problems. Low seedling survival rate is observed due to inappropriate transport system and lack of adequate post planting management measures. Pest infestation of Mole rat is widely observed in the plantation field. In addition occasional infestation of bacterial wilt on enset crop has also been identified as a development constraint. 26 Plate-12: Amawte Plantation Site View, Sodo district 3.7.2 Lower Meki Rehabilitation Site Bio-physical Setting Lower Meki is a site with heavily degraded landscape that is found within the Meki watershed delineated for rehabilitation, and is located at the north-west of Sodo district. It has an elevation of 1700 masl, which is categorized as a mid-altitude ecology. Meki river is crossing the watershed and has a potential for irrigation. Meki river is tributary to the Blate river. Fluvisols/Alluvial soils are the dominant soil types in the area. The area is known as a droughtprone and is assisted by safety net programs. The natural regeneration is dominated by Cordia 27 africana, Acacia seyal, Acacia albida, Balanites aegyptiaca, and Acacia tortilis. Artificial regeneration has given rise to trees like Melia azedarach, Moringa stenopetala, Grevillea robusta, Olea africana, Eucalyptus camaldulnesis, Cordia africana, and Dovyalis abyssinica. Socio-economic conditions There is irrigated farm activity at the river bank where vegetables and onions are cultivated for the local market. The local youth were seen to have irrigation pumps to lift the water from the river and apply surface flood irrigation. The perennial river has crucial importance as drinking water both for animals and local settlers. A gravel road crosses the area extending from woreda capital Buee to Meki town of Oromia region. There is also a tree nursery which has the potential to produce seedlings required for planting. Development efforts and constraints Efforts of rehabilitation and ex-closure have already been effectuated at the upper catchment with some parts of the degraded land has also been rehabilitated with stone bunds. Enrichment plantings with Acacia saligna and Grevillea robusta have impressively shown a good performance. 28 Plate 13: Rehabilitation Site View at Lower Meki , Sodo, district 3.8. Lemo district (Hadiya Zone) 3.8.1 Hayse kebele plantation and rehabilitation site Bio-physical settings Hayse is chosen both for the development of plantation forest and rehabilitation purpose with an area coverage of 100 hectares and elevation of 2212 masl, which makes it a highland ecology. It has mean annual rain fall ranging from 900 - 1400mm. The site is in Lemo district and bordered by Ajo plantation and rehabilitation site at Anlemo and Shashigo districts. The physiographic setting is slopping pasture land with river valley bearing an average slope of 15%. Andosols is the dominant soil type with andic properties. There is all Season River called Gudera 29 crossing the watershed. The natural vegetation is dominated by Juniperus procera, Podocapus falcatus, Cordia africana, Olea africana, Carissa edulis (Agam) and the artificial regeneration has given rise to trees like Cupressus lusitanica, Eucalyptus globulus, and Eucalyptus camaldulensis. Socio-economic conditions Lemo district, by and large, is one of the densely populated districts of Hadiya zone with an average of population of 426/km2 and 5.4 average family size. An access road is reaching to the plantation site. Agriculture is the main stay of the area growing wheat, teff, sugarcane, and enset. The kebele has livestock population of 3045. Development efforts and constraints A watershed development based tree planting and rehabilitation is already underway with public participation. About 20,000 seedlings of tree species like Grevillea robusta, Cupressus lusitanica, and Juniperus procera have already planted on the previously degraded pasture land. It is reported that seedlings have been brought from Wondo Genet College of . The area has been ex-closed from human and animal encroachment. The local community is recognized as a model community for such kinds of development efforts However, the area is still suffering from soil erosion and gully formations. Water shortage is the prime problem in the area. Eucalyptus plantations are also being attacked by leaf spots and fungal canker due to which coppicing of harvested stands has been constrained. 30 Plate 14: Hayse Kebele Plantation and Rehabilitation Site View, Lemo district 3.8.2 Ajo rehabilitation and plantation site Bio-physical Settings Ajo is a site with an area coverage of greater than 2000 hectares where the upper catchment is severely degraded and mainly planned for rehabilitation, whereas the lower catchment is found to be suitable for plantation. The highest elevation of the site is 2114 masl, which is assumed a mid altitude ecology. The upper catchment is dominantly rocky whereas the bottom is having Fluvisols. The natural vegetation of the degraded area is dominated Dodonia viscosa and aloe species. However, scattered Ficus vasta trees are observed in the bottom valley. Moreover, the presence of Ficus vasta is an indicator for the availability of ground water in the area. Therefore, exploration of ground water may be feasible for irrigation of the valley bottom. It 31 was also observed that the nearby Lake Boyo, in the vicinity of the project site, can be used as additional source of irrigation water. Socio-economic conditions Ajo kebele is one of food insecure kebeles where recurrent drought affects. Currently some 608 beneficiaries of productive safety net program are found in the kebele. In order to support development endeavors, it was observed that all weather road crosses the site. The site also has a community nursery at the lower catchment. Development efforts and constraints Although the site is known for its high productivity at its foot slopes, improper land management, soil erosion, erratic and inadequate rainfall are the cause for lowering agricultural productivity. At the upper catchment massive community mobilization such as trenches digging, area closure, etc., as land rehabilitation approach were implemented in order to avert the land degradation. Besides, so as to widely engage the community in nature conservation and afforestation awareness was created constantly at different levels through the extension services. Plate 15: Ajo Rehabilitation and Plantation Site View, Lemo district 32 3.9 Mirab Abaya district (Gamo Gofa zone) 3.9.1 Shafe watershed (selected for both plantation and rehabilitation) Bio-physical settings Shafe watershed is located in Mirab Abaya (Lat 60 11''N - 60 51"N and Long 370 58" E - 370 98" E). The watershed consisting three sub-watersheds has an altitude ranging from 1400 to over 2700masl. The project area covers about 1700 hectares and is allocated for both plantation and rehabilitation. The watershed is characterized by undulating topography with a degraded landscape that drains to Shafe river, which ends up in Lake Abaya. The soil catena of the watershed along the gradient of the slope is dominated by sequence of Cambisols, Luvisols and Fluvisols. The area has a bi-modal rainfall pattern and means annual temperature of 240C. The natural vegetation is dominated by Dodonea viscosa, Cordia africana, Croton macrostachyus, Terminalia brownii, Juniperus procera, Ficus vasta, Trchilia emetica/dregena, Acacia polycantha, Prunus africana. The artificial regeneration is composed of tree species such as Eucalyptus camadulensis, Cupressus lusitanica and Grevillea robusta. The lower boundary of the watershed is covered by Balanites aegyptiaca and Terminalia brownii dominated woodland. Socio-economic conditions Although agriculture is the dominant economic activity, it is observed that productivity is declining and most of the area is found to be marginal for crop production. As a result, the local community is food insecure and is being supported by productive safety net program. However, the local community being aware of the problem of deforestation and land degradation is committed to change the current situation. The area has the potential for forest production and there are already three community tree nurseries in place. There is a handicraft experience of molding and making clay pots, a tradition which under proper training and financial support can 33 be used for producing energy efficient stoves thereby can reduce pressure on the nearby woodland. The woodland at the bottom of the watershed is an open access and is exposed to encroachment i.e. wood extraction and free grazing. The scattered settlements in the watershed threaten the woodlands. Development efforts and constraints Development efforts are scanty; however, there are some encouraging activities such as soil conservation, establishment of community nurseries and traditional pottery skills. Development constraints in the area include runoff, gullies, siltation, nutrient depletion, crop productivity decline, total deforestation of the watershed and absence of all weather road, which altogether pose poverty and food insecurity. Plate 16: Shafe Plantation and Rehabilitation Site View, Mirab Abaya district 34 Chapter 4 Propositions for Rehabilitating Degraded Sites The factors influencing soil erosion and land degradation are multiple and mutually reinforcing. It is widely agreed that the massive removal of vegetative cover is one of the driving forces behind land degradation. This loss is largely due to an expanding population, with its increasing demand for crops, grazing land, and fuel wood. The most important countermeasures taken to halt this process have been plantation of trees and assisted natural regeneration by excluding human and animal interference to achieve social, environmental and economic benefits. Although there are some shortcomings, there are some success stories in this regard in Tigray and some parts of Amhara regions where local communities, specially organized landless youth and women, are engaged in such activities and are driving the environmental and economic benefits from them. This chapter provides proposed restoration and rehabilitation interventions for selected degraded sites based on the findings of the survey with the aim to improve their productivity and enhance their ecosystem services. 4.1. Proposed interventions for rehabilitation of degraded lands in Endamehoni District 4.1.1. Menkere Rehabilitation Site As it has already been indicated in chapter three, there is already an on-going effort of rehabilitation of degraded lands in Menkere with community participation. The only thing needed is to reinforce and consolidate the on-going effort with additional and improved 35 measures. It will be very important to establish ecological corridors and connect the already established patches of Olea Africana and Juniperus procera forests through integration of additional economically and environmentally significant trees and shrubs. These corridors form interconnections of isolated systems, which facilitate an easy movement of genetic material, minimize inbreeding and broaden the gene pool of the entire system. Tree species such as Ficus thonningi, Ziziphus spina-christi, and Acacia abyssinica are better to be considered during enrichment planting. Tree planting can be combined with broadcasting of native flora combined with seed treatment to enhance species richness, density and average height and growth of seedlings. Prior to planting, constructing in situ water harvesting structures such as ponds, trenches, and micro basins has been identified as the best option to enhance water availability and thereby improve survival of seedlings. An access road that could connect the site with the main road is also crucial to ease close monitoring and follow-up of the rehabilitation activity and to transport forest products to the nearby market. A management plan and a local bylaw need to be in place if sustainability and effectiveness of the ex-closure is sought. Participation of different socioeconomic groups aggregated by income, age and sex etc. is recommended. Performance based benefit sharing mechanism should be in place to assure equity and accountability. It is also suggested that implementing various site-specific postplanting cares is vital to enhance the survival and growth of planted seedlings. Moreover, introducing carbon trading schemes and ecotourism were suggested as opportunities to increase economic incentives to realize sustainable management of enclosures. 4.2. Proposed interventions for degraded sites in Alaje District 4.2.1. Betmera (Genji) Rehabilitation Site A vast area (i.e., 2500 hectares) is allocated at Betemera for rehabilitation purpose and this displays a commitment from the side of the local community and the local administration to 36 change their environment. The trend of producing and planting weak seedlings must be avoided and healthy, viable, and sturdy seedlings need to be targeted and the already available Adugra Nursery with 2 hectares size can be renovated and strengthened for this purpose. Here, both ex-closures and agro-forestry interventions can be considered. Integration of trees, shrubs, and fruits like Rhamnus prenoides, apple, Vernonia amygdalina, Popular, Cordia africana, Ficus thunningi, Sesbania sp., Acacia abyssinica can be considered in farm lands and homesteads. The communal degraded landscapes can be considered for ex-closures and enrichment planting with Grevillea robusta, Juniperus procera, Accacia decurrense, and Accacia saligna, can be taken into account. The prevailing problem of gully formation need to be tackled through gully reclamation measures such as gabion and stone check dams. Soil moisture retention structures such as deep trench and series of ponds need to be targeted for improving the survival of planted seedlings. The management and bylaws recommended for Menkere is also applicable for Betemera. 4.3. Proposed interventions for degraded sites in Wadla district 4.3.1. Shireta (027) Rehabilitation Site Shireta was initially proposed for plantation. However, the physiographic disposition of the area combined with its shallow soil depth and rockiness makes it difficult for plantation and pose soil erosion and gully formations. Some of the planted Eucalyptus trees that have been observed during the field work has already been drying and dying due to the above mentioned reasons. Unless the area allotted for plantation is extended down to the valley where there are relatively plain lands, it is very difficult to recommend this site for plantation and the site should be allocated for rehabilitation. Therefore, the steep slopes can be considered for ex-closure with in situ water harvesting structures and soil conservation structures like bench terraces and gully rehabilitation measures need to be considered. 37 4.3.2. Zugera (015) Rehabilitation Site Zugera is almost similar to Shireta as far as topography, climate, and soil types are considered. Here, a combination of area closure and agroforestry is recommended. Integration of trees, shrubs, and fruits like coffee rubusta, coffee shade trees, Casuarina equisetifolia, Rhamnus prinoides, Persea americana, Mgnifera indica, banana, Populus species can be considered in farm lands and homesteads. The communal degraded landscapes can be considered for exclosures and enrichment planting with Cordia Africana, Olea Africana, Dodonia viscosa, Grevillea robusta, Juniperus procera, Accacia decurrense, and Acacia saligna, can be taken into account. The prevailing problem of gully formation need to be tackled through gully reclamation measures such as gabion and stone check dams. Soil moisture retention structures such as deep trench and series of ponds need to be targeted for improving the survival of planted seedlings. The management and bylaws recommended for other sites are also applicable for Zugera. An access road that could connect the site with the main road is also crucial to ease close monitoring and follow-up of the rehabilitation activity and to transport forest products to the nearby market. 4.4. Proposed interventions for degraded sites in Meket district 4.4.1. Debko (026) and Aydefer (027) Rehabilitation site There are already success stories in this area. The on-going watershed development and pasture management efforts are encouraging and what required is to further consolidate and strengthen these endeavors. The banning of post-harvest free grazing and the installment of stall feeding is a breakthrough for better seedling survival and sustainability of afforestation and reforestation activities. The already existing ex-closures need to be enriched with tree 38 species such as Cordia africana, Casuarina equsetifolia, Acacia saligna. The already available nursery need to renovated and strengthened. The prevailing problem of gully formations need to be tackled through gully reclamation measures such as gabion and stone check dams. Soil moisture retention structures such as deep trench and series of ponds need to be targeted for improving the survival of planted seedlings. The management and bylaws recommended for other sites are also applicable for Debko and Aydefer. An access road that could connect the site with the main road is also crucial to ease close monitoring and follow-up of the rehabilitation activity and to transport forest products to the nearby market. 4.5 Proposed interventions for Delanta district As the area is heavily degraded and is frequently drought stricken, other options of livelihood that can improve the wellbeing of the local community and enhance environmental resilience need to be considered. In this regard, aforestation and fruit production need to be considered through implementing holistic rehabilitation activities. The first and foremost rehabilitation activity should come first is exclusion of human and animal encroachments from the delineated rehabilitation site. Then, the already commenced soil and water conservation need to be consolidated and water harvesting activities should be intensified. Bench terraces, hillside terraces, trenches, ponds, and micro-basins should be in place in order to capture the run-off for growing seedlings. As the area has an alpine climate, tree and shrub species that are to be considered for enrichment plantings should be cool climate and frost resistant. Alpine vegetations such pine, Hagenia abysinica, Erica arborea and Hypericum revolutum can be considered and fodder trees like Tree lucerne and apple can be considered in farmlands and around the homesteads. 39 4.6 Proposed interventions for Atint mesberia degraded site in Dessie Zuria district The area allocated for rehabilitation is about 1600 hectares and the area can be categorized as a sub-alpine ecological zone. Here, both area ex-closure and agro forestry interventions can be considered to support and improve the livelihood of the local community and to enhance environmental resilience. Fodder trees like Tree lucerne and apple can be considered in farmlands and around the homesteads. Alpine vegetations such as Pine, cedar, Erica arborea and Hypericum revolutum can be considered along with in situ water harvesting structures. 4.7 Proposed interventions for Lower Meki degraded site, Sodo district Gully reclamation measures should be considered to heal the existing gully networks with conservation trees such as, Acacia saligna and Acacia tortilis. Grevillea robusta and Acacia saligna in integration with water harvesting structures such as series of stone bunds, trenches, and micro-basins are recommended. Furthermore, mulching and compost application are important to improve seedling survival and growth rate at this moisture stressed environment. Moreover, a detailed survey and feasibility study should be carried out in order to assess the suitability of the site for irrigation along the Meki river bank to expand the existing horticultural activity with fruit trees such as guava, papaya, and mango. Income diversification to local community can be brought through integration of apiculture into the area closure. 40 4.8 Proposed interventions for Lemo district 4.8.1 Proposed interventions for Hayse degraded site, Lemo district As an effort to mitigate moisture stress, trenches on the degraded land and other water harvesting structures in combination with stone-faced soil bunds are found to be essential. Direct sowing of Accacia decurrens and planting of deep rooted trees such as Grevillea robusta, need to be considered. 4.8.2 Proposed interventions for Ajo degraded site (Lemo, Anlemo and Shashigo districts) Rehabilitation activities for the upper catchment such as spot planting of tree species by digging planting holes/micro basins on the hardened rocky hill along with placing fertile soil and compost. Owing to the availability of huge biomass like bushy plants compost preparation is feasible in appropriate localities for supporting tree establishment. The candidate tree species for rehabilitation are Dodonea viscosa, Acacia decurrens, Acacia saligna, and Ficus thonningi. These species are recommended to meet the dire needs for forage and in order to combat land degradation. So as to make the development interventions successful, the area needs to be gazetted and free grazing needs to be prohibited. Thus, along the boundary between the plantation and the agricultural land, a fodder bank must be established with fodder trees including Leucaena leucocephala, Celtis africana, and Ficus thonningi. 41 4.9 Proposed interventions for Shafe degraded site (Mirab Abaya District) Soil and water conservation interventions are indispensible that include hillside terraces, contour bunds, trenches and runoff diversion channels; and these must be in place prior to rehabilitation and plantation endeavors. Gully reclamation measures such as check dams and embankment plantings with suitable trees such as Acacia saligna, Oxythenantera abyssinica, Acacia decurrens, Erythrina brucei and grasses (desho, etc.) are also pertinent. 42 43 Table 1: Tree species selected for rehabilitation of degraded lands and their ecological and management requirements No. Tree species Elevation Slope Rainfall Ecological and Management Requirements Propagation Browse Soil depth frost technique tolerance 1 Ficus thunningii 1600-2300 <50% 900-1400 <100 cm Not resistant Not resistant cuttings <100 cm Not resistant seedlings Browse species Palatable for goat and camel Less browse 3 Ziziphus spina-cristi 0-2200 <50% <250-500 <100 cm 4 Grevillea robusta 1500-2700 <50% 900-1400 5 Acacia decurrense 1600-3000 <50% >900 >100 cm Not resistant Seedling Browsable 6 Acacia melanoxylon 1600-3000 <50% >900 <100 resistant seedling Not browsable 8 Albizia amara <2400 <75% <700 <100 not browsable Olea Africana <1500-2400 <50% >900 <100 >1600 <80% >500 <100 11 Dodonaea viscosa/angustifolia Acacia saligna Not resistant Resistant 1000-2400 <80% >500 <100 Seedling, wildings Seedlings, wildings Seedlings, wildings seedlings 9 10 12 Casurina equistifolia 500-2800 <80% 400-1400 >100 seedlings Not browsable Non resistant Not resistant Seedlings, cuttings Non browsable Not browsable browsable Source: Azene Bekele-Tesema, Useful trees and shrubs for Ethiopia, identification, propagation, and management for 17 agroclimatical zones, 2007, RELMA/ICRAF, Nairobi, kenya. 44 Use Animal fodder Edible fruit, fodder Bee forage Fuel, timber, Windbreak & SWC Fire wood, charcoal, bee forage Timber, fire wood, charcoal Bee forage, Timber, medicinal SWC, fire wood, live fence Fodder, SWC, Nfixing Timber, N-fixing plant, fuel wood Table 2: Ecological and bio-physical conditions of sites selected for rehabilitation Ecological and bio-physical conditions Districts sites Elevation (masl) Mean Annual Rainfall (mm) Endamehoni Menkere 2423 700 Alaje Betmera (Genji) 2447 Wadla 027Shireta Mean Annual Temperature (oc) Soil depth (cm) Natural vegetation Planted trees/shrubs 70% <100cm Albizia amara, Acacia abayssinica Opuntia ficus-indica, aloes, reed, Juniperus procera, Euclea shimperi, Dodonea viscosa, Olea Africana Eucalyptus globulus, <700 70% <100cm Olea africana, Dodonia angistifolia, Accacia abyssinica, Opuntia ficus-indica, aloe, reed, Juniperus procera, Vernonia amygdalina Eucalyptus globulus, E. camaldulensis, A.decurrense, A. saligna, Rhamnus prenoides, Leucaena leucocephala, Tree lucerne, Sesbania sesban, and fruit tree like apple. 2833 900-1300 75% <100cm Euphorbia Abyssinica, Acacia Abyssinica, and Cordia Africana Eucalyptus camaldulensis, Tree lucerne, Sesbania sesban 015 (Zugera) 2820 800-1200 75% <100cm Ficus vasta, Dodonea angustifolia, Olea africana, Acacia abyssinica, and Cordia Africana Rhamnus preminoides, Coffee robusta, mango, banana, avocado Meket 026 (Debko) and 027 (Aydefer) 2813 – 2000 800 50-80% <100cm Euclea shimperi, aloes, Euphorbia triculli, Dodonea viscosa, Euclea shimperi, Dodonia viscosa, Adinsonia digitata, Euphorbia triculli, cordia africana Dessie Zuria Atintmesb eria 1650-3500 45 18 Slope (%) Erica arborea, Hypericum revolutum, Megera Eucalyptus globulus, Treelucerene, Hagenia abyssinica, Hypericum revolutum Table 3: Site suitability for tree species Selected sites for rehabilitation No. Tree species Menkere (Endamehoni) Betmera (Genji) (Alaje) Shireta (027) (Wadila) Zugera (015) (Wadila) Debko (026) and Aydefer (027 ) Atintmesberia (Dessie Zuria) (Meket) 1 Ficus thunningii S1 S1 S2 S2 S2 S3 3 Ziziphus spina-cristi S2 S2 S3 S3 S2 S3 4 Grevillea robusta S2 S2 S3 S3 S2 S2 5 Acacia decurrense S1 S1 S1 S1 S1 S1 6 Acacia melanoxylon S1 S1 S1 S1 S1 S1 8 Albizia amara S1 S1 S1 S1 S2 S1 9 Olea Africana S1 S1 S2 S2 S3 S2 10 Dodonaea S1 viscosa/angustifolia Accacia saligna S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 S2 Casuarina equistifolia Sesbania sesban S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 Chamacytesus palmensis (Tree S3 S3 S2 S1 S1 S1 11 12 13 14 46 15 16 lucern Dombeya torrida(Wolkefa) Acacia abyssinica S3 S3 S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 Table 4: Trees/shrubs proposed for gully reclamation and river bank fixation across all sites No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. Tree/shrub species Populus tremiloides Reeds Elephant grass Erythrina species Salix subserrata Desho grass Euphorbia triculli Acacia saligna Dodonea species Vetiver Aloe species Sisal Cactus Ficus thunnungii 47 Physical measures to be integrated Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Ecology Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Chapter 5 Development of short rotation forest plantations 5.1 Introduction Short rotation forest plantation development is essential to produce renewable and CO2 neutral biomass as a clean source of fuel, chemicals and materials, and the potential biomass species include several eucalyptus species, which are suitable for fuel and charcoal production, pulp and paper manufacturing, and sawn wood (Rockwood et al., 2008). Eucalyptus is the most valuable and widely planted hardwood in the world, and E. grandis, E. urophylla, E. camaldulensis, and E. globulus, account for about 80% of the eucalypt plantations worldwide (Rockwood et al., 2008). In Ethiopia, Eucalyptus spp. constitute 56% of the forest plantations (Bekele, 2011), and the promising and well-adapted eucalypts for use in short rotation plantations are E. globulus, E. camaldulensis, E. grandis and E. saligna. The other species of interest for short rotation forestry globally besides eucalypts include Populus spp., Salix spp., Australian Acacia spp., Leucaena leucocephala, Gmelina arborea, Prosopis spp., Paulownia spp., Casurina spp., bamboos, Melia azedarach, Cordia spp. and Cupressus spp. In Ethiopian case, the fast growing indigenous trees, Cordia africana and Acacia tortilis and the well adapted and widely growing exotic tree species, Casuarina equsetifolia, Melia azedarach, Cuppresus lusitanica and Acacia decurrens, the lesser known but well adapted introduced tree species, Cordia alliodora, Populus spp., Cuppresus torulosa and Gmelina arborea, as well as the bamboos (Oxythenantera abyssinica & Arudinaria alpina) and a number of other fast growing tree species can be considered. 48 Farmers in Ethiopia practice short rotation management on copping tree species ranging from 2-3 years for fuelwood, 4-5 years for short poles, and 7-9 years for telegraph poles (Bekele, 2011). The plantation sites identified and made available for establishment of plantations in both Tigray and Amhara are communal, degraded sites with very steep (over 50-100% slope) with undulating features characterized by rocky nature with shallow soils. Hence the sites require bench terracing, gully stabilization and when possible addition of soil from elsewhere. In addition, the areas are characterized by very unreliable short rains in spring and longer but erratic rains in summer, and the mean annual rainfall is generally below 900. Most of the areas fall in the dry Afromontane forest and grassland ecosystem complex ecosystems, which are found between (1600)-1900-3300 m altitude, whereas the Delanta and Dessie Zuria sites fall under the Afroalpine and Sub-Afroalpine ecosystems, which are found between 3200-3500 and 3500-4620 m altitudes, respectively (IBC, 2005). Whereas various remnants of characteristic natural vegetation are observed, the plantations observed in the sites are predominantly Eucalyptus globulus. Apart from the various natural and planted forest populations, the land use is characterized mainly by rain-fed agriculture and livestock production in open grazing system; however some level of irrigated agriculture and stall feeding are also practiced in some of the woredas. 5.2 Land preparation for planting Existing soil conservation structures need to be maintained and new ones should be constructed. Existing structures in the areas include stone bunds, trenches, half-moon structures, diversion channels and check dams. An additional type of conservation structure that needs to be integrated with such type of structures is the construction of bench terraces on a few selected contours along the gradient. A detailed and meticulous planning is needed on the diversity and intensity of the soil conservation structures. In addition, the land preparation 49 will also include slashing of unwanted vegetation, removal of big stones and digging of standard planting halls way before the planting season. Soil, as appropriate, and compost will be transported to the planting sites as part of the land preparation for planting. 5.3 Tree species for short rotation forestry Each of the sites will be classified as protection zone and production catchment. The protection zone in a given site will be a mixed plantation with better soil and water conservation role. The production zone will be managed for short rotation plantation development. Appropriate Eucalyptus species and other fast growing tree species will be planted in each site in 70: 30 ratio (i.e. 70% Eucalyptus and 30% other tree species) in the lower catchment as pure stands. Plate 17: Protection and Production Zones 50 5.4 Water Harvesting Generally all the selected sites are dry receiving mean annual rainfall of < 900 mm, and they are characterized by long dry seasons and erratic rainfall. Hence, water harvesting is the highest priority exercise in order to be able to water seedlings during the dry season. In addition to the rain, rivers and streams and ground water resources can be harnessed through various means including developing wells and ponds. 5.5 Nursery management and seedling production Seedling production in the selected woredas mainly targets quantity and not quality. However, there are not enough well equipped and managed nurseries, and as a result they tend to produce low quality, which are usually bare-rooted or produced in very small pot sizes that do not allow vigorous seedling production. For seedlings to be able to successfully establish out in the field in such harsh conditions, they need to have very high seedling vigour, which usually have high root to shoot ratio, high sturdiness and good size (i.e. around 50 cm height). To produce vigorous seedlings, the pot size should be at least 12 to 15 cm lay flat. Hurdles of getting tree seeds of high genetic and physiological quality need to be overcome. Hence, the right species from the appropriate seed sources/provenances should be obtained in the right time and sown accordingly following the prescribed seed pretreatment techniques. Training on modern seedling production systems needs to be organized to all the practioners of seedling production in the woredas. 5.6 Stand establishment and management plan Silivicultural calendar from land preparation to planting and tending operations need to be worked out in detail. The first and most important task is realizing high seedling survival through proper pit preparation several weeks before planting, seedling protection and 51 watering. The first year or two are very critical years in plantation establishment, and hence all possible efforts need to be made to realizing high seedling survival and fast growth. The operation plan may need to specify the period and volume of work involved in land preparation, transport and distribution of fertilizers (P,K), planting out in the field, weeding and cultivation, pest and disease control, fertilization, watering, harvesting and transport and reestablishment. Table 5: Silivicultural calendar from land preparation to planting Practices and operations per 0 1 2 3 4 5 6 7 8 9 10 11 12 13 year Land preparation (clearing, X pitting) Establishment and X maintenance of soil and water conservation structures Establishment of water X harvesting and supply structures Transporting soil to micro- X sites with little original soil Transporting compost & X mulch Planting out (+ composting & X mulching) Weeding and cultivation X Application of fertilizers (P, K) X Pest and disease control X Application of fertilizers (N) Watering Harvesting and transport Re-establishment 52 X X X X X X X X X X X X X X X X X X X X X X X X X 5.7 Infrastructure and capacity building The most important infrastructures need for the development of the small scale plantation in the woredas include access road construction to facilitate both planting and harvesting, standard nurseries, ponds and other water harvesting structures and soil and water conservation structures. There is also a need to capacitating practitioners with knowledge and skill in seedling production, silviculture, short rotation plantation management and water harvesting. 5.8 Species diversification trials The forest plantations in the woredas are dominated by Eucalyptus tree species. While this project still predominantly employs eucalypt for the short rotation plantations, it will be necessary to have research plots as sideline activities in which a number of fast growing indigenous and exotic tree species will be screened in randomized complete block designs. The survival, growth and biomass production of the species will be evaluated in these trials. The findings from the experiments will be instrumental in guiding future diversification efforts in short rotation plantation development endeavors. 5.9 Proposed intervention for Alaje plantation site Alaje-Betmera (Genji) plantation site is estimated to be 1200 ha. The proposed tree species to be planted as pure stands for production of wood are Eucalyptus globulus and E. camaldulensis and Acacia decurrens and Cordia africana. A mixed stand composed of Rhamnus prenoides, apple, Vernonia amygdalina, Popular, Cordia africana, Ficus thonningi, Sesbania sp. and Acacia abyssinica will be established for watershed protection purposes. Upgrading the existing nursery at Adugra will be necessary to produce quality seedlings. In addition, establishment and 53 maintenance of deep trench, series of ponds, check dams and gully stabilization will also be conducted. 5.10 Proposed Interventions for Enda Mehoni Endamehoni-Argibeda plantation site has an estimated area of over 1000 ha. Pure stands of Eucalyptus globulus, E. camaldulensis, Acacia decurrens, Casuarina equsetifolia, Cuppresus lusitanica and Cordia africana will be established for wood production purposes. An additional mixed stand composed of A. decurrens, C. equsetifolia, C. lusitanica, C. africana, Vernonia amygdalina and Ficus thonningi will be developed for watershed protection purposes. Increase moisture availability through water harvesting and mulching will be important activities to survival and growth. At the bottom of the plantation site, construction of access road should be conducted. In addition series of ponds shall be constructed along with terracing structures. 5.11 Proposed Interventions for Meket Meket-Jirele-Akat plantation site has an estimated area of xxx ha. Pure stands of Eucalyptus globulus and E. camaldulensis will be established for wood production purposes. In addition mixed stand composed of Acacia abyssinica, Cordia africana, Casuarina equsetifolia and Grevillea robusta will be established for watershed protection purposes. The existing nurseries close to the planting sites will be upgraded for quality seedling production. Construction of access road to the site and establishment of irrigation system will also be needed. 5.12 Proposed Interventions for Wadla Wadla-Shireta plantation site is estimated to be 100 ha. Expansion of the plantation site to the village can make the plantation feasible, and hence further work is needed by the woreda office to include some of the existing agricultural fields to be developed under the forest plantation. 54 Pure stands of Eucalyptus globulus, E. camaldulensis and Cordia africana are recommended to be established as production plantations. Mixed stands of Acacia abyssinica, A. decurrens and Juniperus procera are recommended for watershed protection purposes. Access road to the site, irrigation infrastructure, water harvesting structures will be needed for overall upgrading of the plantation site and its performance. Wadla-Zugera plantation site is the second plantation site selected in the woreda, and it is estimated to have over 1000 ha of land. Pure stands of Eucalyptus globulus, E. camaldulensis, Casuarina equisetifolia and Populus sp. will be established for production purposes whereas mixed stands composed of Casuarina equisetifolia, Populus sp. and Juniperus procera will be developed for watershed protection purposes. Construction of access road to the site, irrigation infrastructure and water harvesting structures will also be conducted. 5.13 Proposed Interventions for Delanta Delanta -Mekelet-Entugna site is estimated to be over 629 ha. Originally, only the Mekelet site was allocated for the project, but after the field visit, the team has recommended the inclusion of the neighboring site in Entugna Kebele to be part of the project site. Pure stands of Eucalyptus globulus, Hagenia abyssinica, Cuppresus lusitanica and poplar will be established for wood production purposes and mixed stand composed of H. abyssinica, Juniperus procera, C. lusitanica and poplar will be established for watershed protection purposes. The project will improve the existing nurseries at Amboafaf and at Melkumecheferia. In addition, improving and maintaining stone bunds, eyebrows, water ways and constructing bench terraces and putting in place gully stabilization structures will be necessary. 5.14 Proposed Interventions for Dessie Zuria Dessie Zuria-Gelsha Bukasa-Haroye plantation site has an estimated area of 1200 ha. Pure stands of Eucalyptus globulus, E. camaldulensis and Grevillea robusta will be established at different belts. Though there are five state nurseries in the woreda, an additional nursery needs 55 to be established at the appropriate site to supply seedlings to the plantation. At least two more nurseries should also be upgraded for quality seedling production. Construction of ponds is essential for watering the plantation site. 5.15 Proposed interventions for Amawte, Sodo Integration of trees like E.viminalis, A. decurrens, A. melanoxylon, C. lusitanica, J. procera, Arundinaria alpina, Populus spp. and Malus domestica (Apple) into the pasture land and establishing fodder banks with tree species such as Sesbania sesban, Chamaecytisus proliferus (tree lucern), and the local Desho grass need to be considered. Stone, gabion, and wooden check dams in combination with planting embankments with Erythrina brucei and Desho grass need to be considered to tackle the advancing gully formations. 5.16 Proposed interventions for Hayse, Lemo Mulching is crucial for already planted seedlings. As an effort to mitigate moisture stress, trenches on the pasture land and other water harvesting structures in combination with stonefaced soil bunds are found to be essential. Candidate tree species for planting are E. camaldulnesis, C. africana, A. melanoxylon, C. equistifolia, Popular, P. gracilior, and G. robusta. 5.16.1 Proposed interventions for Ajo (Lemo, Anlemo and Shashigo Districts) A tree nursery for massive production of seedlings can be established at the valley bottom near water source. At the lower catchment tree species such as Eucalyptus camaldulensis, Grevillea robusta, Cordia africana, Acacia decurrens, Populus spp. and Podocarpus falcatus are recommended for plantation. However, these tree species can be planted in the upper 56 catchment as long as the soils depth remains deeper. In addition, fruit trees like mango and papaya can be grown provided the ground water is developed. In order to make the development interventions successful, the area needs to be gazetted and free grazing needs to be prohibited. Thus, along the boundary between the plantation and the agricultural land, a fodder bank must be established with fodder trees including Leucaena leucocephala, Celtis africana, and Ficus thonningi. 5.17 Proposed interventions for Shafe (Mirab Abaya District) Soil and water conservation interventions are indispensible that include hillside terraces, contour bunds, trenches and runoff diversion channels; and these must be in place prior to plantation endeavors. Tree plantation efforts need to consider tree species such as Eucalyptus camaldulnesis, Eucalyptus grandis, Eucalyptus saligna, Causarina equisetifolia, Cordia africana, Juniperus procera, Acacia melanoxylon, Acacia decurrens, Populus spp., and Arundinaria alpina. Fodder trees like Terminalia brownii and Celtis africana, Chamaecytisus proliferus (tree lucern) and also edible fruit trees such as apple at the upper catchment need to be considered. 57 Table 6: Candidate short rotation plantation species Tree species Elevation Slope Rainfall Soil depth Frost tolerance Propagation technique Browse tolerance Uses Acacia decurrens 1600-3000 <50% >900 >100 cm Not resistant Seedling Browse Fire wood, charcoal, bee forage Acacia melanoxylon 1600-3000 <60% >900 <100 Resistant Seedling Not browsable Timber, fire wood, charcoal Arudinaria alpine 2200-3300 <50% > 900 >100 Resistant Seedling and vegetative Browsable Furniture, fodder, soil conservation Casurina equisetifolia 1000-2800 <50% 400-1400 >100 Not resistant Seedlings Not browsable Timber, N-fixing plant, fuel wood Cordia Africana 900-2500 <50% <900->1400 >100 Not resistant Seedlings Browsable Timber, fodder, firewood Cuppresus lusitanica 1500-3000 <50% <900->1400 > 100 Resistant Seedlings Not browsable Timber, windbreak, E. globulus 1700-2800 <80% <900->1400 <100 Resistant Seedlings/coppice Not browsable Timber, poles, firewood E. grandis 1700-2500 <80% >900 <100 Resistant Seedlings/coppice Not browsable Timber, poles, firewood Eucalyptus camaldulensis 1200-2800 <80% <1400 <100 Resistant Seedlings/coppice Not browsable Timber, poles, firewood Grevillea robusta 1500-2700 <65% 900-1400 <100 Not resistant Seedlings Less browse Timber, poles, firewood Melia azedarach <2400 <80% <900->1400 <100 Not resistant Seedlings Firewood, windbreak, fodder Populus tremiloides 1500-3000 <80% 900-1400 <100 Seedling Timber, firewood, soil conservation 58 Table 7: Ecological and bio-physical conditions of sites selected for short rotation plantation Ecological and bio-physical conditions Sites Elevatio n (masl) Mean Annual Rainfall (mm) Mean Annual Temperatur e (oc) Slope (%) Soil depth (cm) 18 70% <100cm Albizia amara, Acacia abayssinica Opuntia ficus-indica, aloes, reed, Juniperus procera, Euclea shimperi, Dodonea viscosa, Olea Africana Eucalyptus globulus, Natural vegetation Planted trees/shrubs Endame honiHargibe da 2423 700 AlajeBetmera (Genji) 2447 <700 70% <100cm Olea africana, Dodonia angistifolia, Accacia abyssinica, Opuntia ficus-indica, aloe, reed, Juniperus procera, Vernonia amygdalina Eucalyptus globulus, E. camaldulensis, A.decurrense, A. saligna, Rhamnus prenoides, Leucaena leucocephala, Tree lucerne, Sesbania sesban, and fruit tree like apple. WadlaShireta 2833 9001300 75% <100cm Euphorbia Abyssinica, Acacia Abyssinica, and Cordia Africana Eucalyptus camaldulensis, Tree lucern, Sesbania sesban MeketJireleAkat 2813 800 50-80% <100cm Euclea shimperi, aloes, Euphorbia triculli, Dodonea viscosa, Euclea shimperi, Dodonia viscosa, Adinsonia digitata, Euphorbia triculli, cordia africana Desie ZuriaGelsha Bukesa 16503500 59 Erica arborea, Hypericum revolutum, Megera Eucalyptus globulus, Treelucerene, Hagenia abyssinica, Hypericum revolutum Table 8: Site suitability for the proposed short rotation species Selected sites for short rotation plantation Tree species Alaje-Betmera (Genji) EndamehoniHargibeda MeketWadlaJirele-Akat Shireta Delanta-MekeletEntugna Dessie Zuria-Gelsha Acacia decurrens S2 S2 S1 S1 S2 S1 Acacia melanoxylon S2 S2 S2 S2 S3 S2 Arudinaria alpine S3 S3 S3 S3 S2 S2 Casurina equisetifolia Cordia Africana S2 S2 S3 S1 S2 S2 S1 S1 S3 S2 S2 S3 S1 S2 S2 S1 S1 S2 S2 S3 S3 S1 S2 S2 S1 S1 S3 S2 S2 S3 S1 S2 S1 S1 S1 S3 S3 NS S2 S1 S2 S2 S3 S3 NS S2 S3 S2 S1 S2 S2 S1 S1 S3 S3 S3 S3 S3 NS S3 Cuppresus lusitanica E. globulus E. saligna E. grandis Eucalyptus camaldulensis Grevillea robusta Melia azedarach Populus tremiloides NS= Not suitable 60 Bukasa 5.18 Agroforestry species The afforestation and degraded land rehabilitation project planned to enhance forestry development in this region are welcomed by the local community, local administration and woreda experts as substantial support to their development endeavor. The area, however, apart from forestry development as plantation has also immense potential to include fruit, fodder, fuel wood and timber trees in the farm land in some form of spatial arrangement to improve land productivity, change the microclimate, support animal feed in the dry season, sequester huge amount of carbon, maximize production from different system components, and diversify farm income in the localities. Inclusion of woody perennial component in the farm lands is so important that the trees can serve as insurance in times of crop failure in the areas aggravated by inconsistent rains in the Berlg and Meher seasons. In any comparison, tree based agricultural systems are more healthy as a land use system. Therefore, the following tree species with agroforestry potential are proposed for the district sites: 1. Endamahoni and Alaje districts At about 1.5m pollarding height for lopping as fodder supplement in the dry season, Vernonia amygdalina and Ficus thonninghii are proposed for Endamahoni and Alaje sites. These can be planted at the farm boundary as shelter belts. Lopping intensity of one to two times a year can stimulate the growth of fresh and succulent leaves from lopping for fodder supply in the form of stole feeding to ruminant livestock. Casuarina equisetifolia tree rows of two at planting distance of 2m x 2m in close proximity with annual crops in the field or as boundaries planting can support improve crop productivity by its N-fixing ability in association with the abundant actinomycete Frankia. The tree due to its suitable sparse canopy form casts minimum shade over the under storey crops where it transmits sufficient light for photosynthesis. The tree's integration apart from improving crop production can improve livelihood options from the sale of branch wood pollarded at about 2m 61 above ground. The tree profusely regenerates a number of new branches for subsequent future pruning as sustainable source of fuel wood. The construction and timber needs can also be supported from this source. 2. To the warm and mid highland agricultural belt of Meket where cereal mono-cropping is widely practiced, Croton macrostachys, Cordia africana, Moringa stenopetala, Leucaenia leucocephala, Grevillea robusta, Celtis africana, Rhamnus prenoides, Acacia polyacanta, Albizia spp, Faedherbia albida, Acacia abyssinica, Milletia feruginea has to be included in line planting of wider spacing to complement agricultural production. 3. At the mid to high altitudes of north and south Wollo zones, temperate fruit trees such as apple, pear, plum, and apricot can successfully grow below the frost lines of 3000masl. Provided appropriate training on the growing and management techniques of these fruit tree species is given and closely monitored for their success. These fruit trees can transform the living conditions of the population from subsistence cereal farming to fruit and vegetable growing areas with substantial surplus income. In addition, the district agriculture and rural development offices at north Wollo claim that the areas repeatedly face crop failures and the population faces food shortage. Thus, introduction of the drought tolerant perennial crop, enset as homestead planting would support animal fodder in the dry season. Even though, there is cultural and knowledge gap in growing and management of enset in this region, the population through cultural exchange to the southern Ethiopia can learn to process enset for supplementary food. 5.19 Fertilizing Plantations During the field mission, it was observed that soils in all the surveyed sites are heavily eroded and the nutrients are depleted. This sign of unhealthiness will have a grave consequence on the soil productivity to bear plantation; hence, it is pragmatic to fertilize tree species for remedying 62 of nutrient deficiencies, increasing wood yield, improving tree appearances, stimulation of seed production and the increased production of subordinate plant species that are valuable as forage for animals. Therefore, we strictly recommend to use both organic and mineral fertilizers such as compost, nitrogenous, phosphate, Ca-, Mg- and S- fertilizers. In addition, it order to maintain cool and wet root zone, mulching with straw and scoria is highly recommended. 63 64 Table 9: Ecological and management requirements of tree species selected for plantation and rehabilitation of degraded lands Tree species Elevation Slope Rainfall Ecological and Management Requirements Soil Propagation Browse Frost Use depth technique tolerance Acacia abyssinica 1500-2800 <60% >600 <100 Not resistant Seedling Browsable Firewood, charcoal, bee forage Lopping, pollarding, coppice Acacia decurrens 1600-3000 <50% >900 >100 cm Not resistant Seedling Browsable Coppicing Acacia melanoxylon 1600-3000 <50% >900 <100 resistant seedling Not browsable Fire wood, charcoal, bee forage Timber, fire wood, charcoal Acacia polyacantha 500-1600 < 50% <1400 >100 Not resistant Seedling Browsable Fuel wood, construction, Timber, Bee forage Pollarding, coppicing Acacia saligna 1000-2400 <80% >500 <100 seedlings Browsable <2400 <75% <700 <100 Seedling, wildings Browsable Fodder, SWC, N-fixing Bee forage, Pollarding, coppicing, Albizia amara Non resistant Not Arudinaria alpine 2200-3300 <50% > 900 >100 Resistant Seedling and offsets Browsable Furniture, fodder, soil conservation protecting from termite attack and borers Balanites aegyptiaca <1800 <70% <1400 <100 Not resistant Seedling, direct sowing Browsable Fuel wood, excellent charcoal, Edible fruits, soil reclamation Coppicing 65 Management requirement Lopping for firewood Casuarina equisetifolia 500-2800 <80% 4001400 >100 Not resistant Seedlings Not browsable Celtis Africana 1300 2300 <50% <1400 >100 Not resistant Seedling Browsable Chamaecytisus ploriferus 1700 -3300 <70% >700 >100 Resistant Seedling Browsable Cordia Africana 900-2500 <50% >700 >100 Not resistant Seedlings Croton macrostachyus 1100 - 2500 <50% >700 >100 Not resistant Cuppresus lusitanica 1500-3000 <50% >800 > 100 Dodonaea viscose >1600 <80% >500 Dombeya torrid 1600-3400 <40% Erythrina brucei 1400 -2800 Eucalyptus camaldulensis Eucalyptus citriodora 66 Timber, Nfixing plant, fuel wood Fodder, Fuelwood, timber Fodder, soil fertility Pruning for clear bole Browsable Timber, fodder, firewood Pollarding, lopping, coppicing Seedling Not browsable Timber, charcoal, fuel wood, soil fertility Pollarding, lopping, coppicing Resistant Seedlings Not browsable Timber, windbreak, Pruning, thinning <100 Resistant Seedlings, wildings Not browsable SWC, fire wood, live fence none >500 >100 Not resistant Seedling browsable Firewood, timber, poles Pollarding, lopping, coppicing <50% >900 >100 Resistant Cutting Browsable Fuel wood, soil conservation, fodder, bee forage Pollarding, coppicing 1200-2800 <80% <1400 <100 Resistant Seedlings/coppi ce Not browsable Timber, poles, firewood Copping, pollarding 1700 - 2400 <80% >900 <100 Pruning to clear bole Pruning (frequent fodder harvesting) Coppicing Eucalyptus globulus 1700-2800 <80% >600 <100 Resistant Seedlings/coppi ce Not browsable Timber, poles, firewood Coppicing Eucalyptus grandis 1700-2500 <80% >900 <100 Resistant Seedlings/coppi ce Not browsable Timber, poles, firewood Coppicing, protecting from termite attack Eucalyptus saligna 1700 - 2300 <80% >900 <100 Resistant Seedlings/coppi ce Not browsable Timber, poles, firewood Copping, avoid planting in wind-prone area Ficus thonningii 1600-2300 <50% <100 <50% Browse species Less browse Animal fodder 1500-2700 Not resistant Not resistant cuttings Grevillea robusta 9001400 9001400 Bee forage Fuel, timber, Windbreak & SWC Pollarding, lopping, coppicing, pruning Juniperus procera 1500 -3300 <60% >900 <100 Resistant Seedlings Not browsable Timber Pruning, thinning Leucaena leucocephala 0 -1600 <40% >700 >100 Not resistant Seedlings/Direc t sowing Browsable Fodder, Soil fertility, fuel wood, Charcoal Lopping, coppicing Malus domestica >1800 <30% >900 >100 Resistant Grafted Seedling Browsable Fruit Remove leaves and fruits if less than 2 years old for massive fruiting latter Melia azedarach <2400 <80% 9001400 <100 Not resistant Seedlings Browsable Firewood, windbreak, fodder Pollarding, lopping, coppicing, pruning Olea Africana 1500-2400 <50% >700 <100 1200 1800 <40% 500 1400 >100 Seedlings, wildings Rhizomes, suckers, Non browsable Browsable Timber, medicinal Fodder, furniture, Slow growing Oxytenanthra abyssinica Not resistant Not resistant 67 <100 seedlings Control by cutting from expansion to seedling Not resistant Seedling Not browsable scaffolding, walking sticks Timber unwanted sites Timber, firewood, soil conservation Prescribed burning promotes sprouting Podocarpus falcatus 1500 -2500 <50% >900 >100 Populus tremiloides 1500-3000 <80% 9001400 <100 Prunus Africana 1200 - 2500 <60% >900 >100 Not resistant Seedling Browsable Excellent timber, medicine, construction Slow growing Sesbania sesban 300 -2000 <80% >900 <100 Not resistant Seedling, direct sowing Browsable Fodder, soil fertility, fuel wood Pruning Terminalia brownie 300 -2000 <60% >700 >100 Not resistant Seedling, direct sowing Browsable Fodder, construction, timber, fuel wood Pollarding, lopping, coppicing Trichilia dregeana 1100 - 2200 <40% >900 >100 Not resistant Seedling Not browsable Timber, fuel wood Pollarding, coppicing Seedling Slow growing Source: Azene Bekele-Tesema, Useful trees and shrubs for Ethiopia, identification, propagation, and management for 17 agroclimatical zones, 2007, RELMA/ICRAF, Nairobi, kenya. 68 Table 10: Ecological and bio-physical conditions of sites selected for plantation and rehabilitation in southern region Ecological and bio-physical conditions Districts sites Elevation (masl) Mean Annual Rainfall (mm) Mean Annual Temperature (oc) Slope (%) Soil depth (cm) Natural vegetation Planted trees/shrubs Amawite 3040 1022 17oC 25 <100 Juniperus procera, Arundinaria alpina Eucalyptus globulus, Grevillea robusta Lower Meki 1700 1022 20 25 <100 Cordia africana, Acacia seyal, Acacia albida, Balanites aegyptiaca, Acacia tortilis. Melia azedarach, Moringa stenopetala, Grevillea robusta, Olea africana, Eucalyptus camaldulnesis, Cordia africana, and Dovyalis abyssinica. Lemo Hayse 2212 1150 18 15 <100 Juniperus procera, Podocapus falcatus, Cordia africana, Olea africana, Carissa edulis (Agam) Cupressus lusitanica, Eucalyptus globulus, Eucalyptus camaldulensis Lemo, Anlemo, Shishigo Ajo 2114 1150 18 20 <100 Dodonia viscosa, aloe species, Ficus vasta No notable artificial plantations Mirab Abaya Shafe 14002700 1000 240C 30 >100 Dodonea viscosa, Cordia africana, Croton macrostachyus, Terminalia brownii, Juniperus procera, Ficus vasta. Eucalyptus camadulensis, Cupressus lusitanica and Grevillea robusta. The lower boundary of the watershed is covered by Balanites aegyptiaca and Terminalia brownii Sodo 69 Table 11: Site suitability for tree species for rehabilitation of degraded lands Selected sites for rehabilitation Tree species Menkere (Endamehoni) Betmera (Genji) (Alaje) 027Shireta (Wadila) 015 (Zugera) (Wadila) 026 (Debko) and 027 (Aydefer) Atintmes beria (Dessie Zuria) Lower Meki Hayse Ajo (Lemo) (Lemo, (Mirab Anlemo, Abaya) Shashigo) (Sodo) Shafe (Meket) Acacia abyssinica S1 S1 S1 S1 S1 S1 S2 S1 S1 S1 Acacia decurrens S1 S1 S1 S1 S1 S1 S2 S1 S1 S1 Acacia melanoxylon S1 S1 S1 S1 S1 S1 S3 S1 S1 S1 Acacia tortilis NS NS NS NS NS NS S1 NS NS S2 Accacia saligna S1 S1 S1 S1 S1 S2 S1 S1 S1 S1 Albizia amara S1 S1 S1 S1 S2 S1 NS NS NS NS Casuarina equistifolia Chamacytesus palmensis (Tree lucern Dodonaea viscosa/angustifolia Dombeya torrida(Wolkefa) S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 S3 S3 S2 S1 S1 S1 S3 NS NS NS S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 S3 S3 S1 S1 S1 S1 S1 S1 S1 S1 70 Ficus thonningii S1 S1 S2 S2 S2 S3 S1 S1 S1 S1 Grevillea robusta S2 S2 S3 S3 S2 S2 S2 S1 S1 S1 Olea africana S1 S1 S2 S2 S3 S2 S1 S1 S1 S1 Sesbania sesban S1 S1 S1 S1 S1 S1 S1 S1 S1 S1 Ziziphus spina-cristi S2 S2 S3 S3 S2 S3 S1 S3 S3 S3 71 Table 12: Site suitability for the proposed short rotation species Selected sites for short rotation plantation Tree species AlajeBetmera (Genji) Endamehon i(Hargibeda) Meket(JireleAkat) Wadla(Shireta) Delanta(MekeletEntugna) Dessie Zuria- Sodo (Amawte) Lemo (Hayse) (Gelsha Bukasa) Lemo, Anlemo, Shashigo Mirab Abaya (Shafe) (Ajo) Acacia decurrens S2 S2 S1 S1 S2 S1 S1 S1 S1 S1 Acacia melanoxylon S2 S2 S2 S2 S3 S2 S1 S1 S1 S1 Acacia polyacantha NS NS NS NS NS NS NS NS NS S1 Arudinaria alpine S3 S3 S3 S3 S2 S2 S1 NS NS S1 Casuarina equisetifolia S2 S2 S2 S2 S3 S2 S1 S1 S1 S1 Cordia Africana S2 S2 S3 S2 NS S3 S3 S1 S1 S1 Cuppresus lusitanica S3 S3 S3 S3 S2 S2 S1 S2 S2 S1 Eucalyptus citriodora S2 S1 S2 S2 NS NS S3 S1 S1 S1 Eucalyptus globulus S1 S1 S1 S1 S1 S1 S1 NS NS S1 72 Eucalyptus saligna S2 S2 S2 S2 S2 S2 S1 S1 S1 S1 Eucalyptus grandis S2 S2 S2 S1 S2 S2 S1 S1 S1 S1 Eucalyptus camaldulensis S1 S1 S1 S1 S3 S1 S2 S1 S1 S1 Grevillea robusta S1 S1 S1 S1 S3 S1 S1 S1 S1 S1 Melia azedarach S3 S2 S3 S3 NS S3 NS S1 S1 S1 Populus tremiloides S3 S3 S3 S3 NS S3 S3 S1 S1 S2 Prunus Africana NS NS NS NS NS NS NS S1 S1 S1 Trichilia emetica/dregeana NS NS NS NS NS NS NS NS NS S1 73 Table 13: Trees/shrubs proposed for gully reclamation and river bank fixation across all sites No. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. Tree/shrub species Populus tremiloides Reeds Elephant grass Erythrina species Salix subserrata Desho grass Euphorbia triculli Acacia saligna Dodonea species Vetiver Aloe species Sisal Cactus Ficus thunnungii 74 Physical measures to be integrated Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro-basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Check dams across gullies, bench terraces and micro basins on embankments Ecology Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Middle to high altitude Spacing recommendations for short rotation plantations No 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12 Tree species Accacia decurrense Accacia melanoxylon Arundinaria alpina Casuarina equistifolia Cordia africana Cuppressus lusitanica Eucalyptus globulus Eucalyptus camaldulnesis Eucalyptus grandis Grevillea robusta Melea azedarach Poupulus species 75 Construction 2x2 2x2 2x2 2x2 2x2 2x2 2x2 Spacing for different objectives Fuel wood Furniture Pulp and paper 2x1 2x1 1x1 2x1 2x1 3x3 3x3 1x1 3x2 1x1 3x2 2x2 2x2 - 1x1 1x1 1x1 - 3x3 - 3x2 3x1.5 Remarks Chapter 6 Conclusions and Recommendation At the inception, the mission paved its way to carry out its activities as reiterated in the terms of reference, nine sites suitable for plantation and rehabilitation were chosen with full participation of local authorities and expert judgment. Furthermore, candidate tree species for both short rotation plantation and rehabilitation purposes have been shortlisted. Unlike the traditional afforestation and reafforestation activities, critical factors for increasing seedling survival rates have been identified and holistic post seedling managements have also been proposed. At last we believe that the forest sector can help hugely to build the nation’s economy and therefore, we strongly recommend that the candidate tree species must be handled and treated scientifically so that the forest industry in Ethiopia can gain a momentum to contribute. 76
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