Chapter-1 Physical Basis of Agriculture A griculture is such as economic activity that manifests the complex interrelationship between physical and cultural milieu, usually called geographical environment. Since the main thrust is to understand spatial aspects of agriculture, it is essential to present succinct geographical character of the district. Physical conditions of the region play pivotal role in shaping not only the physical landscape but the socio-economic landscape also. Particularly, such common man as farmer can hardly afford to ignore the physical limits. Physical environment puts problems to them and also provides solutions. But they perceive the physical environment in their own way, evaluate it according and try to extract best out of it. They process of extraction and utilization of the physical environment, specialty for agriculture purposes, is influenced by the physical conditions on one hand and by the characteristics of the farmer, his society and economy on the other. But it is certain that new measures of agricultural improvement are considered and adopted in perspective of physical environment and the process of their adoption is influenced by the human factors. Therefore, these aspects, relevant to understanding agriculture of Dhar district have been discussed here. PHYSICAL DETERMINANTS OF AGRICULTURE Man's agricultural activity depend on the physical environment in which he lives although he often has tried to minimize the restrictions. Bisher (1932) has rightly put forward the theory that a special field of geography concerns itself with the study of the influence of natural environment on the nature and distribution of man's activity. Nature, in its diverse manifestations, namely, the soil, the water and climate, provides man in different areas with a variety of possibilities for development (Hettner, 1947). Certainly no other branch of human geography deals so directly with physical environment as agricultural geography does. From the very beginning workers in the field were attracted to the problem of explaining how variations in environment influenced the agricultural landscape. Gregor, (1970) and McHarg (1969) has emphasized the importance of Man's harmony with nature and the need to understand and coordinate the resources of nature with those of human beings. By following these principles of what he calls ecological determinism, he has shown how nature and agriculture can impose limits, provide guidelines and assist man in solving environmental problems. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 1 Chapter-1 Physical Basis of Agriculture To make a scientifically viable inquiry into agricultural phenomena, one must pay particular attention to their basic sets of inter relationships, i.e. those between (the intricately related quadruplet complex viz.) the land, the climate, the soils, water resources, hydrological hazards (the exogenous variables) and the available cultivated area. Such a study determines the extent and magnitude of usefulness of usable land for different agricultural purposes. The number of people engaged in farming they are totally depend on agriculture in the study region there are found various type of agriculture. The tribal farmers also cultivate number of crops. In the field survey the researcher noticed soyabean, groundnut, sugarcane, gram, vegetable, like cabbage, cauliflower, brinjal, etc. beside the tradition crop. The types and the number of crops that can be grown on the same field in the course of an agricultural year (Singh, 1974). GEOLOGICAL STRUCTURE Major portion of the plateau is underlain by the Deccan trap, Bagh bed and Lameta beds. This structure has played a dominant role in making its morphology. This part along-with other parts of the peninsular region has been stable land mass since the Cambrian and has never been sub-merged in masse under sea. The major portion about 85 percent is covered by deccan trap, these are located in north-east and southern part of the district, in part of west of the district is found Bagh and Lameta beds. Gneiss, granites and schists of these systems have been denuded to low hills and have given birth to red soils. The Vindhyans dominated by sandstones, shales and limestones are characterised by the presence of escarpments. The rolling surface of the Malwa Plateau is composed of the Deccan traps which were originated by fissure irruptions and were deposited on older surface of the Vindhyans and Archaeans. This is the area of black soils, would be clear from the discussion on relief that these systems are associated with their typical landforms and soils (Plate 1.1). The geological formations are bedded in the following order of increasing antiquity. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 2 Chapter-1 Physical Basis of Agriculture Table 1.1 Succession of Geological Formations Age Formation Bed Recent. Alluvium, Laterite Unconformity. Lower Eocene to Upper Deccan Trap (Malwa Trap with Intertrappeans. Red boles, limestone and gritty sandstone. Lameta beds, Bagh bed. Sandstone and limestone-Coralline limestone. Cretaceous. Cretaceous 1. Deola Marl 2. Nodular Limestone. 3. Nimar Sandstone, Unconformity. Archaeans.. Intrusives Pegmatites and quartz-veins. Metasedimant 1.Amphibolites. 2. Slates and phylites. 3. Siliceous dolomites. 4. Biotite gneisses. Source: District Gazetteer, Dhar, 1994 Archaeans The Foliation trend of the metasediments varies from N.35º W.-S.-35ºE. to N.65º W.-S-65ºE. The dip is steeply towards south-west and north-east. The metasediment in the vicinity of Bagh are folded into an isoclinal synciline which appears to plunge towards south-east. The biotite-gneiss is pink to light grey in colour and contains thin bands of quartz-feldspathic material alternating with mafics. The gneiss occurs in the Bagh river section between Khera and Oria, the Gadri nadi section between kher and Pipri and around Baktala. The siliceous dolomite is dark-grey, compact and finegrained. It contains essentially quartz and dolomite. It occurs near Wanda, Jamla and Barkhera. Slates and phyllites, pink to grey in colour, are found near Bagh, Wands, Deojhiri and Barkhera. The amphibollites occur as instrusions, generally as sills, into the biotite gneisses and phyllites. These rocks are medium to coarse grained and dark green to black in colour. They are hard and compact. Mineralogically, they consist of hornblende, quartz oligoclase, andesine and subordinate labradorite. Sphene, apatite, magnetite and ilmenite occur as accessories. These occur near Bhurkia, Udaipur and Belda. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 3 Chapter-1 Physical Basis of Agriculture Instrusives (Pegmatite and Quartz-veins) A pegmatite vein occurs within the gneiss near Bhurkia. Except slates, all other Archaean metased ment of the area traversed by quartz veins, mostly comformable to their foliation planes. Bagh Beds The Bagh beds comprise the Nimar Sandstone, Nodular Limestone, Deola Marl and Coralline Limestones in the ascending order and occur as inliers within the Deccan Trap. Of these, the last three members are profusely fossiliferous and attain a thickness of about 25 m. These beds are of marine sedimentary origin. They are horizontally bedded. The Nimar sandstone is well exposed along the Bagh river, south of Bagh, the Uri river north of Ajanta, the Gadri Nadi, north of Pipri, the Hatni river and the Man river east of Gandhwani. The Nimar Sandstone is yellow to brownish red in colur. It is ferruginous, Medium to coarse grained, gritty and slightly calcareous in nature. East to Bagh and near Satemri the sandstone is conglomeratic and contains pebbles of quartz and jasper. In this section this rock contains quartz together with microcline, oligoclase and fragment of quartzite, granite, cherts and basic rocks. The matric is ferruginous siliceous calcarous and clayey. Tourmaline, zircon, apatite, rutile, garnet and sphene are the heavy minerals. Major occurrences of the Nedular Dimestone are found near Jamniapura, on both sides of the Bagh river near Nandgaon and Khandlai. It is thinly bedded and white to light blue and light brown in colour. The nodules are of calcareou and cherty nature. The limestone is soft, cavernous and fossiliferous. The Devla marls is well developed in the Man river valley near Deola, Chirankhan, Chakrod, Karaondia, south of Thuati and north of Ajantar. It is soft and highly friable, grey and argillaceous in nature. It overlies the partly weathered Nodular Limestone. Good outcrops of coralline limestone occur near Thuati, Barkhera, Ajantar, Khandlai, Karaondia, Chakrod, Deola, Oudiapura and Chirankhan. The Coralline Limestone is yellow to red, light green and reddish browns in colour. It is fine grained and compact and is fossiliferous containing abundant fragments of bryozoa. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 4 Chapter-1 Physical Basis of Agriculture Lameta Beds The Lametas crop out about 2 km. south-west of Bagh, north of Aspura and south-westward upto Hatini. These are represented by shales, ferruginous sandstones and cherty limestones. These are grown to yellowish brown and fine to medium grained. Fossil wood of Gymnosperm species has been reported from the beds. Deccan Trap By far the major part of the District is covered by the Deccan Trap locally called the Malwa Trap. Its flows have a horizontal deposition. Nine basaltic flows have been recorded in the area. The flows vary in thickness from about 10 to 36 metres. The Basalt in some flows is massive, compact and fine-grained in nature. It is steel grey to dark grey in colour. But at places it is purple, greenish black to dark grey in colour and vesicular in nature with zeolites (stylbite, natrolite and mesolite), calcite and secondary silica as vesicular fillings. The rocks contain phenocrysts of plagioclase felspar embedded in a mesostasis of labrodorite microlites, granules of augite, iron ore and glass. Intertrappean horizons are represented by red boles, limestone and gritty sandstone. At places the traps have irregular thin laterite cappings. RELIEF In the district, forested hills and ranges, extensive plateau and river valleys characterise the physiography. Most prominent physical features in the topography are ranges of Vindhyan with broad valley of the Narmada river and the Malwa plateau. Over looking the Narmada Valley in the North, the Vindhyan range marks the edge of the Malwa plateau that slopes towards north to south & in southern part and south to north in northern part of the study region. Vindhyan range is a prime divider of the region. The highest peak is existed on 751.03 metre above sea level and the lowest portion is existed along the Narmada river and is 170 metre above the sea level. The northern half of the district lies on the Malwa plateau. Man, Uri-bagh, Hatni and Karam are the southern flowing rivers and Mahi, Chambal and Bageri are the northern flowing rivers (Plate 1.2). Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 5 Chapter-1 Physical Basis of Agriculture PHYSIOGRAPHIC DIVISIONS The District extends over three physiographic division. They are the Malwa plateau in the north, the Vindhyachal range in the central zone and the Narmada valley along the southern boundary. However, the valley is again closed up by the hills in the south-western part. The Vindhyachal Range A part of the range extends in the district in crescentic belt a generally from south-east to north-west. The range is represented by a strip of hilly area 5 to 20 kilometres in width. It is about 5km. wide near village Dani near the south-eastern boundary. Near Mograba in the centre it is about 10 km. further widening to 20 km. west of Tanda. To the west of Bagh and Kukshi the Range stands disconnected by the valleys of the Esai and the Hatni. It re-starts along the Narmada in the south-west. The northern spur of Pipahiabon Peak (543.76 metres) forms the boundary between the Sardarpur Tahsil and Jhabua District. It extends from the peak of Gomanpura (556.26 metres) to Bajrangarh in Jhabua. Another spur extends towards Jhabua in the north-west. The Great Vindhyachal Range extends generally from west to east and scarps at most of its length towards the south. In Dhar also the southward escarps are well marked, the wall rising from 400 to 600 meters. However, in the western part their faces have been eroded back into long and deep rugged valleys of the tributary rills of the Narmada. In fact the strong currents of the small streams on the steep southern side have cut back at their heads. With the result now the numerous streams of the Narmada valley find their sources on the Malwa Plateau. The main line of the highest peaks has been left to the south of their present couress. Khiniamba (530.96 metres), Kodi (541.93 metres), Suneri (572.41 meters) and Dhanakhera (548.64 metres) lie to the south of the water divide (Plate 1.3). In the eastern and central parts of the Vindhyachal in Dhar the main hill range is continuous but in the west it is dissected by deep channels of the rivulet. The Range slopes towards the north and gradually meets the Malwa Plateau. Numerous spurs also extend over the Malwa plateau in the north. But in the western half in the District one may also find a series of the denuded ridges alternating with the parallel stream-channels and running for some kilometres from north to south. The phenomenon leads the marked excel of the Range into a local confusion, unless one tries to trace the line of the main peaks. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 6 Chapter-1 Physical Basis of Agriculture The highest peak of the district is Magraba (751.03 metres) lies in the central part. Nilkanth (702.26 metres) lies further east and the Shikarpura hill rises up to 698.91 meters. The famous historical fort of Mandogarh towards the flat topped hill above 600 metres, from the mean sea level. The Malwa Plateau The northern half of the District lies on the Malwa Plateau. It covers the northern part of Dhar, Sardarpur and Badnawar tahsils. The average elevation of the plateau is 500 metres above the mean sea level. The land is undulating with a few scattered flat topped hills roughly aligned between the valleys from south to north. The general slope is towards the north. The valleys are covered with the Black Cotton Soil of varying thickness, mostly adopted for cultivation. The mounds may bear gravels or the underlain sandstone rocks may have been exposed. The plateau covers an area of about 466,196.83 hectares in the district (Gazetteer, 1994). The Narmada Valley Below the Vindhyan scarps lies the narrow valley of the Narmada. It occupies the southern part of the district in Manawar tahsil and the southeastern part of Kukshi tahsil. The width of the valley is 15 to 30 kilometres. The elevation varies from 275 metres in the northern part of Manawar tahsil to 150 metres in the low plain of Nisarpur in the south-west. To the east between Khalghat and Bakaner the valley is undulating, wider, more open and fertile with the alluvial cover. Proceeding westwards the valley is studied with hills alternatively cut up by numerous streams which join the Narmada along the southern boundary of the district. The result is that there are few stretches and pockets of alluvium along the streams. CLIMATE The number of climatic variations on the earth has resulted primarily from its rotation and variation, uneven distribution of land and water, and unevenness of its surface of all the geographic influences to which man is subjected, climate seems to be the most potent. It is an influence that no individual or race can escape on land or sea, on plains or mountains, in primitive or civilized societies, man must face the climate virtually on its own terms. In a large measure climate determines where man may live and thrive, what crops he may raise, what type of home he may appropriately build, what sort of clothing he may wear, and what pests and diseases he must combat Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 7 Chapter-1 Physical Basis of Agriculture (Whitebeck, 1932). The potential crop-producing capability of a given area is dependent mainly on the existing climatic and soil conditions. Since climatic factors exert mainly a regional influence on plant life, the differences in the behaviour of a crop or a group of crops over extensive areas, as in a given state or a group of states, may be considered as due primarily to differences in climatic rather than soil conditions (Klages, 1958). The climatic elements and their effects on plant growth are far more complex than it appears. In the field, the plant is never subjected to a single variable at any given time, but has to interact with an almost in finite number of combinations of the elements (Chang, 1968). In analyzing the features of a particular kind of agricultural economy we shall first make a rapid survey of the relevant features of its 'Soi-disant' natural environment. First, the climatic conditions will be described, for, these are not susceptible to modification by man, except at great cost (Dumont, 1970). The success or failure of the cropping season is determined by the intensity of the climatic factors. The three most important factors of climate from the stand point of plant response are temperature, water supply and light (Hildreth et al., 1941), and the may be treated as primary determinants of crop growth. Plant growth does not depend on limited variables but is controlled by various elements acting in combination at a time. All these factors are subject to accelerated fluctuations taking place from time to time, from season to season and from place to place. Consequently, they determine the type of crops raised and cause regional differences in crop associations. In fact, different combinations of these factors account for different types of climates and are responsible for various types of cropping patterns all over the world. Climate is the principal aspect of the physical environment affecting agriculture. The characteristics of the soil - the essential medium for plant growth, are largely the product of present and past climates and the vegetation that has flourished in them, and the affects of relief are to no small degree expressed through resulting climatic variation (Symons, 1978, 33). It consists of the elements like rainfall, temperature, length of growing session, sunlight, frost, fog conditions, snow, hailstorms and winds. All these elements of weather have direct and indirect influence on the cropping pattern of a region (Hussain, 1986, 23). Consequently, the expression of agriculture, the cultivable area, the Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 8 Chapter-1 Physical Basis of Agriculture spatial and temporal cropping pattern and above all strategy of farm economy and its ecology depend on climatic conditions. Climate is most influencing factor, it effect on human along other factors, climate is first of them, it is not for the reason that climate is most important, but it is more basic. Climate is the most important elements of natural environment and directly effects all aspects of human life. Type of climate largely controls the occurrence, type and pattern of various vital resources such as forests, soils, water as well as the productivity of agricultural land. In this way we can say that in any place among geographical factors climate play a major role and it is assumed as the main factor. In generally weather and climate is assumed as one and in any place for a minimum time temperature, winds pressure, moisture and the winds is known as weather, whether climate is a long term process. So climate is the compilation of day to days weather conditions. The climate of India is tropical monsoon, which is according to the wind flow of different season. As the region lies on the tropical latitudes, the climate of the region in marked by high temperature round the years. The region is a part of the monsoon land and is characterized by seasonal distribution of rainfall. The year round high temperature and seasonal distribution of rainfall has a far reaching impact on the human activities in the region. Various elements of climate in the region are equally significant for the welfare of the people. Temperature and rainfall required by the area together becomes the deciding factor not only for agriculture but for other allied activities also. On the other hand hail-storms, thunderstorms and other features of the climate too have been effecting the geographical environment of the region. The characteristics of the climate in the region are not very different from that of the climatic region suggested by Koopen, to which this region is a part. The year is divided into three main seasons i.e. (1) Summer Season (middle of March to middle of June), (2) Rainy Season (middle of June to September), (3) Winter Season (October to middle of March). Temperature The temperature during summer season, remains high and reaches upto 41ºC and during the winter season temperature dips to 25ºC. Most of the Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 9 Chapter-1 Physical Basis of Agriculture rainfall in the region is received during the rainy season, leaving winter and summer seasons fairly dry. Not a single meteorological observatory is located in the region. March onwards the temperature of both days and nights steadily increases and reaches to its peak in May which is the hottest month, with the daily maximum temperature at about 40ºC (104.0ºF) and the mean daily minimum temperature at about 26ºC (78.8ºF) (Table 1.2). Table No. 1.2 Dhar District : Average Temperature (in ºCentigrade) Month 1974 1975 1976 1977 1987 1988 Max Min Max Min Max Min Max Min Max Min Max Min January 27.4 5.9 25.2 9.0 27.1 17.3 26.1 10.2 25.0 11.0 25.0 12.0 February 29.4 12.4 28.3 12.1 30.2 12.3 30.4 13.9 28.0 11.0 28.0 14.0 March - - 33.0 16.0 34.5 18.0 36.2 18.9 34.0 17.0 32.0 19.0 April - - 38.8 23.0 37.1 21.1 - - 40.0 20.0 39.0 22.0 May 39.6 24.2 39.8 25.1 38.3 20.6 39.0 24.2 41.0 21.0 40.0 23.0 June 34.8 24.3 34.8 24.3 33.0 22.8 35.8 23.8 37.0 21.0 37.0 24.0 July 27.2 22.4 27.2 22.4 29.7 22.4 - - 33.0 19.0 30.0 22.0 August 27.6 21.4 27.6 21.4 27.1 21.5 - - 30.0 18.0 29.0 23.0 September 27.1 20.9 27.1 20.9 29.0 21.0 - - 33.0 18.0 31.0 22.0 October 31.1 18.5 31.1 18.5 34.0 19.0 - - 33.0 16.0 31.0 30.0 November 29.1 11.8 29.0 11.6 30.9 17.9 - - 31.0 14.0 28.0 17.0 December 26.7 10.1 27.2 9.8 28.7 13.0 - - 27.0 11.0 26.0 14.0 - - 31.0 18.0 32 19 - - 33.0 16.0 31.0 20.0 District Average Source: (1) District Statistical Office, Dhar (2) District Gazetteers, Dhar, 1994, The over all climate of the region is generally pleasant, the Winds mostly remains dry except during the rainy season due to the influence of southwest monsoon. In the area, maximum rainfall received due to the bellowing of monsoon winds from Arabian sea. Due to Uttarayan, the whole north India receives more solar energy & becomes hot. The study region is for away from the sea coast. Hence, during summer season the maximum temperature of the study area reach upto 4041ºC. As a result of increasing temperature low air pressure belt has been develop in the north-west India, at that time high air pressure belt is formed on Arabian sea. In the month of July minimum air pressure recorded 653 milibar whether during this time in Indian Ocean it has been recorded 1035 milibar. During the end of June air pressure becomes 340 milibar in the low air pressure belt, which is so powerful to create winds from sea and flow towards Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 10 Chapter-1 Physical Basis of Agriculture the interior of Indian sub continent. While winds from line also flows towards the land area. Due to the obstacle of Satpura and Vindhyanchal Mountain ranges the orographic rain fall occurred in the region, and the study region is not an exception. Occasional thunder showers especially in the afternoon brings some relief from the scorching heat. With the onset of monsoon in the region from the middle of June and substantial drop in temperature is recorded. During the post monsoon season i.e. from October slight increase in day temperature is recorded but the nights remain progressively cooler by the end of October both the day and the night becomes cooler as the temperature starts declining. In January the mean daily maximum temperature remains about 27ºC and the mean daily minimum temperature about 7ºC. During the winter season the region is affected by cold waves due to westerly disturbances which passes eastward across the north India. On such occasions the minimum temperature further drops to about a degree or two followed by occasional frost. Altitudinal variation also govern the rhythm of climate in the region. Rainfall Rainwater or rainfall is also known as the precipitation. It is a primary significant source for the recharge/augmentation of ground water reservoir of a particular area, and also plays an important role in the estimation of water balance of a basin (Sahu O. P. & P. Dev, 2007) Precipitation has been defined as 'the depositing of water from the atmosphere on to the surface. This deposit may be liquid or solid to give the various form of precipitation' (Weisner, 1970). Rainfall as the primary ecological parameter has created a variety of farming enterprises, types or system in the world. It is the dominant single weather element influencing the intensity and location of farming system and the farmer's choice of enterprises. Thus, variations in rainfall characteristics affect agriculture as a whole and therefore, there is need to investigate them in details. They become more suitable when crops are affected by moisture conditions at sowing, germination, shorting, stalking and heading and at maturing, harvesting and threshing. Moisture is indeed a basic factor in all crop producing areas. It is all the more important in the minimal regions, where average or normal rainfall is generally necessary for successful crop production. In such areas the system of crop production must be correlated more or less to the moisture factor (Klages, 1958). Rainfall effectiveness is Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 11 Chapter-1 Physical Basis of Agriculture usually expressed as the actual total rainfall minus the total possible evaporation (Monkhouse and Wilkinson, 1967). In the district rainfall in the summer season due to monsoon winds. This starts during the middle of June month when arise of monsoon in Arabian sea and ends in the middle of September month. The average rainfall of the district is 894.4 ml (75 to 100 centimeter) which is lower than the average requirement, it happens due to the winds become dry till arrive to the region. Table No.1.3 District Dhar : Average rainfall (in mm) No. Block 1999- 2000- 2001- 2002- 2003- 2004- 2006- 2007- 2008- 2009- 2000 2001 2002 2003 2004 2005 2007 2008 2009 2010 1 Dhar 524 547 718 726 1091 874 1153 680 699 1204 2 Tirla 602 602 640 658 1089 630 1343 601 689 1071 3 Nalchha 514 543 811 801 1330 829 1025 651 820 880 4 Badnawar 478 480 585 654 1143 870 961 824 653 647 5 Kukshi 377 377 416 633 559 691 993 639 593 667 6 Bagh 290 290 627 655 649 732 897 588 593 741 7 Nisarpur NA NA NA NA NA NA NA NA NA NA 8 Manawar 385 400 587 619 788 626 1070 778 688 741 9 Bankaner NA NA NA NA NA NA NA NA NA NA 10 Sardarpur 482 493 531 723 1078 867 820 620 655 766 11 Gandhwani 328 328 603 868 1017 590 1165 585 679 860 12 Dharampuri 332 332 318 492 603 483 490 446 380 759 13 Dahi 288 288 427 500 807 878 1073 719 596 561 418 425 573 677 923 734 490 648 641 809 District Average Sources: District Statistical Handbook, 2010, District Statistical Office, Dhar According to the records of the year 1999-2000 to 2009-10, during this decade maximum 923 mm rainfall has been recorded in the year 2003-04. During this year out of 13 development blocks maximum rainfall recorded 1143 mm in Badnawar block and minimum 559 mm rainfall recorded in Kukshi tehsil, which is less than half of the Badnawar block. During this decade minimum rainfall only 418 mm recorded in the year 1999-2000, in this year maximum rainfall 602 mm recorded in Tirla development block while minimum 290 mm rainfall recorded in Bagh tehsil of the district. In this way, this year was more dry year of the decade. Looking towards the records of the decade, it has been noticed that during this decade maximum rainfall 1343 mm has been recorded in Tirla block in the year 2006-07, which is maximum rainfall of the decade among blocks of the district. During this decade minimum rainfall recorded in Dahi block, in the year 1999-2000 and 2000-2001 only 288 mm Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 12 Chapter-1 Physical Basis of Agriculture rainfall has been recorded. In the study region from December to May month the rainfall is very less. The rainfall effects agriculture of the study area, because hundred percent tribal population of the area depends on agriculture, as a result tribal agriculture of the area is directly affected by rainfall. As a result of decrease in rainfall economic system of the tribals is disturbed. In this area in the month of December to May rainfall is rare by recorded (Table 1.3 & Plate 1.4). In this area rainfall is recorded only from June to November month, which happens through western monsoon air and in the month of November the rainfall receives from retreat monsoon. Due to the global warming and climatic changes day by day the proportion of rainfall has been reduced and it highly affected on tribal agriculture. Table No.1.4 District Dhar : Monthly Rainfall (in mm) Jan Feb Mar Apr May Dhar Block 0 0 0 0 0 Jun Jul Tirla 0 0 0 0 0 Nalchha 0 0 0 0 0 Badnawar 0 0 0 0 0 Kukshi 0 0 0 0 Bagh 0 0 0 0 Nisarpur 0 0 0 0 0 NA NA Manawar 0 0 0 0 0 94.0 134.0 Bankaner 0 0 0 0 0 132.0 143.0 360.0 Sardarpur 0 0 0 0 0 NA NA Gandhwani 0 0 0 0 0 100.0 172.5 Dharampuri 0 0 0 0 0 140.0 234.0 Dahi 0 0 0 0 0 102.0 264.0 Dist. Total 0 0 0 0 0 1151.6 Dist Avg 0 0 0 0 0 104.7 77.4 Aug Sep Oct Nov Dec Annual 246.3 448.4 296.8 0 135.6 0 1204.5 91.6 225 489.1 244.9 0 20.1 0 1070.7 116.0 311.8 291.4 9.8 0 62.4 0 880.4 18.0 225.0 283.6 71.8 0 48.6 0 647.0 0 184.6 123.6 246.0 87.0 0 25.4 0 666.6 0 96.0 152.0 326.0 153.0 0 14.0 0 741.0 NA NA 0 NA 0 NA 257.0 74.0 0 5.0 0 564.0 75.0 0 31.0 0 741.0 NA NA 0 NA 0 NA 326.0 121.5 0 46.0 0 766.0 323.0 137.0 0 30.0 0 864.0 300.0 81.0 0 12.0 0 759.0 2231.2 3650.5 1440.8 0 430.1 0 8904.2 202.84 331.9 131.0 0 39.1 0 809.5 Source : District Land Records, Dhar, 2010 Soils The main functions of the soils, from agricultural point of view, are to give mechanical support to plants and store and supply the required nutrients and water for plant growth. These functions of the soil depend on its physical, chemical and biological characteristics. Among physical properties texture and structure are very important which determine such characteristics of soil as water absorbing and retentive capacity and movement of air and water. Chemical and biological properties determine its fertility status. All these Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 13 Chapter-1 Physical Basis of Agriculture properties vary with parent rocks, climatic conditions, relief, stages of development of the soil and biological influences (Jain, 1988, 19). Out of the long list of nature's gifts to man none is perhaps so utterly essential to human life as soil (Bannett, 1939, 5). Soil, one of the three attributes of land, is an outstanding renewable resource which sustains the biotic resources of vegetation and animal life. In this district of the state where more than 80.0 per cent ruralties derive their livelihood directly from agriculture. Soils has unique position in resource use system and their very living standard, depending upon agriculture is often determined by the physical, chemical and biological combination of the soil and the crops and livestock raised on them (Shrama, 1989, 33). In any agricultural operation soil is of the almost importance as it is the cradle for all crops and plants (Hussain, 1979, 31). Soil and their properties are also influenced directly and closely by topography, relief and altitudes. The physical, chemical and biological properties determine the rate of adoption regarding the agricultural innovations within any region particularly, use of fertilizers and irrigation as well as high yielding variety of seeds is closely associated with the soil. The soils of the region play a significant role not only in the agricultural productivity of a region but have been influencing the distribution and density of population in the region. The soils have variations in the texture, in the biological and chemical compositions depending on the mechanism of their formation. In the river valleys most of the soil is derived from the disintegrated materials of the rocks from the adjoining hills. Most of the river valleys have black cotton soil because the wider part of the region is covered by the Deccan Traps. The black soil in the river valley is very fertile in nature and has supported the agriculture. The entire Narmada valley, which intersect the Vindhyan hills and lie in the southern part of the region also have the black cotton soil. Soils covering the forests and hilly tracks and stony areas are infertile. The soils of the forest and hills are generally shallow and contain quartzite, basalt and sandstone boulders which are of little use. The study region is a part of old Deccan trap. In the region where hard Malwa plateau there is found a suitable alluvial and laterite soil. In the region from recent period to Archaeans period igneous to sedimentary all type of rocks are existed. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 14 Chapter-1 Physical Basis of Agriculture In this region the soil has been classified as black soil and brown soil. These two type of soil are also divided into three categories these are - good, medium and low standard soil. Among these good quality black soil and brown soil is most valuable soil, which is suitable for rabi and kharif crops. In comparison to brown soil the dark black soil being more moisture capability is suitable for rabi crop. In the plateau area mainly the soil is black soil, but in Nimar area these are mainly brown soil. A large part of Nimar soil is brown and stony. Due to less depth this soil is suitable for kharif crops. In the study region Dharampuri sector is most fertile in comparison to other. The other fertile area of the district is Dhar, Badnawar, Nalchha, Manawar and Dahi. The soils are also classified on the basis of their capacity to support particular crops. The soil available in the study region is categorised in four groups1. Black soil - The soil varies in depth and usually are loomy to clay in texture. These soils are usually ill supplied with phosphorus, nitrogen and organic matter but are sufficient in Potash and lime (Jain, 1988, 19). Due to the damage and break of lava shaili. The black soil is formed. In Nisarpur block of Kukshi tehsil this soil is known in the name of old Jalod soil. In this area dark coloured balui soil is found, where in some places stone are found. In this soil all the three seasons (kharif, rabi and jayad) crops are produced. Cotton, Ginger, Banana etc. commercial crops are produced in the region which are the main crop of the area. According to some intellects, this soil is produced from Deccan trap. Since ancient period it was covered by forests, as a result it is full of mineral and chemical components and humus is more. Having maximum plant parts its colour is black. This soil is more suitable for the cotton crop. It is having maximum water conserving capacity. The black soil area of the district is Dhar, Badnawar, Gandhwani, Kukshi and Manawar tehsil where soyabean and cotton is produced. 2. Red Soil - Red soil are derived from gneisses and other metamorphic rocks. These soils are developed either in sites or from the decomposed rock materials washed down to lower level by rain. These soils are formed under well drained conditions. Alluviation of clay, iron, aluminium bases are the main soil forming process. Red soils vary in colour between red and reddish brown. These soils show lighter texture, friable structure and low contents of soluble salts. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 15 Chapter-1 Physical Basis of Agriculture Absence of lime concretions and free calcium carbonate are other important features (De and Ghosh, 1993). The soils are well drained with moderate permeability. Because of the predominance of sand of different size and shape, water retentive capacity is comparatively lower. They disintegrate very easily. This soil is available in north-west part of Kukshi and southwest part of Sardarpur tehsil. This soil is made through the erosion of crystal stone. In higher part this soil is of less thin layer stony. Generally in this soil maize, jawar, bajra, kodon, kutki, arhar, urad, rice, mung, groundnut etc. crops are produced. 3. Brown Soil - This soil is found in Vindhyan hills and its foot area. This type of soil is found in Kukshi tehsil in its south-western part in Dahi block in Akhrani hills. In this type of soil calcium, sodium, potas and phosphorus is available in sufficient quantity. The colour of this soil is light brown and brown. In this soil iron is available but there is shortage of nitrogen. 4. Kachhari Soil - This soil is available in the basin of Narmada and its supporting rivers. In Kukshi tehsil and Nisarpur block this soil is known as old Jalod. Here dark colour balui soil is found where in some places stone is found. In this soil Kharif, Rabi and Jayad three type of crop is produced. In this area gingar, cotton, banana etc. are produced as commercial crop which is main crop of the area. DRAINAGE SYSTEM Surface water, that is, the water on the surface of land, represents the drainage from the land. We see it in flowing rivers and creeks, lakes and ponds. Surface flow is derived partly from the rainfall that is shed into the water courses from sloping lands. A part of the rainfall that is absorbed by the soil also becomes surface water by its discharge when it seeps into rills and runnels. The portion of rain or snowmelt that penetrates deeply becomes the ground water recharge and it is discharged into the streams slowly. Groundwater effluent becomes the base flow that maintains the flow of streams in fair weather when we speak of surface water, we mean stream flow regardless of its source (Langhein and Wells, 1955). Therefore, surface water is by far the most important means for providing substantial irrigation which stabilizes and improves agro-economic life in an area that has otherwise plenty of land potential. Because of the uncertainty in the flow of surface water, it is probable that any attempt to improve agricultural techniques and land-use Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 16 Chapter-1 Physical Basis of Agriculture planning without combating the problems with the help of shallow and deep water-tables is bound to be abortive. Throughout the world, efficient use of water and the priorities we attach to it is going to engage the attention of the next generation. The main problem in surface water utilization in dry lands is the prevention of losses by evaporation and percolation and absorption. So it is essential to stand ardize certain methods for measuring evaporation from water surfaces and to adopt suitable techniques to check water losses. In the beginning, such methods and techniques may cost a large amount of money, but ultimately they will be advantageous as they will prevent waterlogging and unnecessary loss of water (Singh, 1976). The southern part of the district lies in the catchment area of the Narmada which forms the southern boundary. The north-eastern part is drained by the Chambal and its tributaries. It forms the catchmant area of the Ganga. The north-western part drains into the Mahi. The water-dividing line between the Narmada and Chambal is marked by the northern fringe of the Vindhyachal range. The waters of the Chambal and the Mahi are separated by the off shoot range which runs along the Sardarpur-Jhabua boundary (Plate 1.5). The Narmada The magnificent river flows along the southern boundary of the district in a rift valley from east to west with a sountherly inclination. It rises from the Amarkanatak plateau (22 040' to 81045') of the Satpura range in Shahdol district. Flowing to the west it touches the district at Lasangaon (75031'East) at the confluence with the Karam. It forms the southern boundary of the District along with that of the West-Nimar for about 107 Kilometres. It receives the Borad, Dob, Nahali and Goi on its left while the Karan, the Man, and the Bagh join its right bank. The river has been mentioned by Ptolemy and the author of Periplus. The Ramayan, the Mahabharat and Puranas refer to it frequently. The RewaKhand of Vayu Puran and the Rewa Khand of Skand Puran are entirely devoted to the story of the birth and the importance of the river. It is said to have sprung from the body of Lard Shiva. It was created in the form of a lovely damasel who enamored gods and hence named by the Lord as Narmada, delight giving. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 17 Chapter-1 Physical Basis of Agriculture It is also said to have been in love with the Sonbhadra, another river flowing on the Chhota Nagpur plateau. On the male river’s inclination towards the Ganga, the Narmada took a westerly course. According to the Puranas the Narmada is also called the Rewa, from its leaping motion (form the root rev) thought its rocky bed. To Shiva the river is specially sacred on account of its origin, and it is often called Shankari, i.e. daughter of Shankar. All the pebbles rolling on its bed are said to take the shape of his emblem with the saying. Narmada ke kanker utte Shanker. These lingam shaped stones, called Banalinga are much sought after for daily worship by the Hindus. In the central parts of India the River is held to be far more sacred than any other stream in India. Even Ganga herself is obliged to come and dip in these waters once a year. She comes in the form of a coal-black cow and returns home pure white, free from all sins. A sight of the Narmada is equivalent to a bath in the Ganga. At numerous places along its course there are temples, and fairs are held. Pilgrims perform Pradakshina, i.e. walking along the southern bank from its source to the mouth and going back along the northern bank. The performance is regarded to be of the highest religious efficacy. The States of Madhya Pradesh, Maharashtra, Gujrat and Rajasthan are interested in developing the resources of the River by the construction of a series of dams on the Narmada and tributaries. However, the varying claims of the States are now pending with the Prime Minister for final decision based on an overall National interest. The river had been a potential barrier of free communication in the past. So were the floods causing destruction to the valley region inspite of its deposits of fertile silt. The river is crossed by roads at Khalghat and Chikhalda in the district. Otherwise ferries are managed by the local administration at important crossings. Narmada is a dominent perenial river in the study region. It play a vital role in irrigation. Comparatively other blocks of the district, Dahi, Nisarpur, Manawar, Bankaner, and Dharimpuri under the irrigated area is high. These blocks are the dominent tribal blocks. The effect of Narmaba river water is clearly seen on tribal agriculture. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 18 Chapter-1 Physical Basis of Agriculture The Chambal The Chambal, Charmanwati or Charmawati of the ancient times rises from the western slopes of Janapao hill (854.35 metre) in Indore district. It is the most important river of Malwa. Initially it has a north westerly course and flows through Dhar district for 17 km. The river then turns to the north and forms the eastern boundary for about 10 km. The river further flows in to Ujjain, Ratlam and Mandsaur district of Madhya Pradesh while forming the northern boundary of Gwalior Division. The Chambal is a main tributary of the Yamuna river. The Mahi River The Mahi River rises from the northern slopes of the Gomanpur hills in Sardarpur tahsil. It flows towards north and forms the north-western boundary of Sardarpur tahsil. The river is joined by the Bageri nala from the right before it leaves the district. Hence it takes a north-westernly course in Ratlam district. After crossing the Banswara district of Rajasthan the river takes an acute turn towards the south-west and enters in to the Bay of Khambhat. The Karam The Karam rises from the Singarchori hill of Indore. It drains a small area north of the Vindhyachal range and cuts across it to south. It forms the south-eastern boundary near Gujri and joins the Narmada. The Man It rises from the southern scarps of the Malwa plateau. It flows to the south and joins the Narmada pass Nimkhera and Kheri amidst the hills and Manawar and Bakaner in the Narmada valley. The catchment area of Man river is higher than Karam & Bagh. Man project is constructed on this river, near the zirabad. The Bagh The Bagh and the Uri also rise from the southern scraps and jointly drain into the Narmada. Tanda is located on the bank of Uri. The Bagh flows past Bagh, Khushi and Nisarpur. The Hatni rises in Jhabua district and form the western boundary of Dhar for some distance before joining the Narmada. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 19 Chapter-1 Physical Basis of Agriculture VEGETATION Under the abolition of proprietary rights order (1950) the Malguzari forest have been taken over by the State Government and most of these have been declared as protected forests. Some of the forests blocks were reserved in the beginning of 20 th century. The reserve forests are under scientific management of the government. The public has no rights in these forests except for the privileges granted by the government. Due to increase in population and expansion of agricultural activities on additional land considerable wooded area has been cleared for human settlement and the land made available was put directly under agricultural uses. As a result the forest has substantially been reduced in last few decades. Still the region has almost ideal proportion of forests one-third per cent of its total geographical area. The forest environment in the region has been practically negative to the settlement and the population. The reserved and protected forests are not open to settlements besides, some wild animals and various insects. Which have their habitat in these areas are also harmful to the human life. However forests have many positive impacts also on the human activities. Forests not only purify the air but also control pollution to a great extent by extent regulating the climate. To replenish the ground water decrease the runoff rate of rainy water helps in controlling floods. Prevents soil erosion and ultimately helps in maintaining the fertility of soil. Forest area also influences the distribution of rural settlements which have developed close to the forest areas while the dissected land ravines and residual hills etc. have restricted the distribution of settlements. In the recent years forests are restricted only to the hilly areas which are not suitable for cultivation. According to the information of the district forest office of the region total area covered by the government forests in the region under study comes to about 3043 sq. kms. and the forests are classified as – 1. Reserved Forest - 615 sq. kms (20 per cent) 2. Protected Forest - 2428 sq. kms (80 per cent) The reserved forest in the area were demarcated as early as in the year 1879 the reserved forests are still under the scientific management of government. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 20 Chapter-1 Physical Basis of Agriculture Type of forests and their composition - The forests in the region are broadly classified as tropical dry deciduous forests. However, in different areas of the region, variation in the predominating species their quality and density is also observed. A good number of deciduous evergreen or semi-evergreen and a few xerophytic to semi-xerophytic type of species too are found in the region. In varying proportion in certain localities one or the other species also seems to have monopolized the area. The forest of the region can be classified into the following typesMixed – Good, Medium and Poor quality. Teak - Good, Medium and Poor quality. Grass Blanks - Good quality. Salai - Poor quality. Karlhai - Poor quality. Ghant - Khair Bhirra Poor quality. - - Poor quality. Poor quality. Population residing in the adjourning areas of the forests and their growing activities i.e. excessive grazing by animals and cattle, cutting of green trees to meet the requirement of fuel and other needs have been damaging the forests without realising the adverse affects in the long term. The tribal communities in India largely occupy forested regions where for a long period in their history, they lived in isolation but in harmony with the nature. They draw their sustenance largely from the forests. The forest not only provide them food, material to build houses, fuel for cooking, light and warmth, fodder for their cattle but also satisfy their deep rooted sentiments. Tribal life is connected in a way or the other with forests right from birth to death. Forests occupy the central position in tribal economy. Tribal life is profoundly affected by what ever happens to the forest. Forest is for them a whole way of life, and hence the development cannot make much head way without the contribution of forestry sector. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 21 Chapter-1 Physical Basis of Agriculture The tribal traditionally collect many items of daily use as well as minor forest produce items from the forests, which are necessary for their day-to-day sustenance. During drought and adverse conditions, the tribal households live only on edible products collected from forests. CONCLUSION Dhar district has a triangular shape. Vindhyachal range divide the region in two part. It is located in central part. Magaraba is a highest peak in the region, it height is 751.03 meter above sea level. According to census 2001 54.50 percent of the people of the region belonging scheduled tribes. Bombay, Agra highway is existed in south eastern part of the district, Pithampur is a industrial hub of the Madhya Pradesh state. It is known as the "Detroit of Asia" due to the unemployment the tribal marginal farmers are migrated in Nov. - May. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 22 Chapter-1 Physical Basis of Agriculture REFERENCES Bennet, H.H., 1993, Element of Soil Conservation, New York, McGraw Hill Book Co. Chang, Jen-Hg, 1968, Climatic and Agriculture : An Ecological Survey, Chicago, Aldine Publishing Co., pp.225, 232 and 243. De, N.K. and Ghosh, P., 1993, India – A Study of Soil Geography, Calcutta, Sribhumi Publishing Company, p.32-63. Dhar, O.N. and Rakhecha, P., 1975, A review of Hydormeteorological Studies of Indian Rainfall In Verma C.V.J. Water for Human Needs, Vol. III, Development and Meterology. District Gazetteer, Dhar, 1994 Directorate of Gazetteer, Bhopal, M.P. Dumont, Rene, 1970, Types of Rural Economy : Studies in World Agriculture, London, Methen, p.3. Gregor, Howard F., 1970 Geography of Agriculture : Themes in Research, Prentic Hall Inc., London, p.31. Hettner, A., 1947, Allgemein Geographic des Menschen (General Geography of the Humans), 1, Stuttgart, Kohlhammer, p.6. Hildreth, A.C. et al., 1941, "Effects of Climatic Factors on Sowing Plants", Water : The United States Department of Agriculture, Year Book, Washington, pp.292-307. Hussain, M., 1986, Agricultural Geography, New Delhi, Intra India Publication, p.23. Jain, C.K., 1988, Patterns of Agricultural Development in Madhya Pradesh, New Delhi, Northern Book Centre. Klages, K.H.W., 1958, Ecological Crop Geography, New York, Macmillan, pp.44, 111, 189, 211 and 235. Lal, D.S., 1996, 1998, Climatology, Sharda Pushtak Bhawan, Allahabad, p.24. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 23 Chapter-1 Physical Basis of Agriculture Mc Harg, I.L., 1969, "Ecological determinism", in : Future Environment of North America, Darling F.F. and Milton J. (eds.), New Yourk, Natural History Press, p.190. Monkhouse, F.J. and H.R. Wilkinson, Maps and diagrams, London, Methuen & Co., 1967, p.149. Sahu, O.P. and Dev, P., 2007, Role of Rain Water Phenomena in Recharge of Ground Water Resources in Chhatarpur Area M.P., Published in Ground Water National Seminar on Agriculture and Rural Drinking Water Organized AICGWBOA India, Vol.I, p.364. Sharma, S.K., 1989, A Resource Development in Tribal India, New Delhi, Northern Book Centre. Singh Jasbir, 1974, An Agricultural Geography of India : A Geographical Analysis, Kurukshetra, Vishal Publications, p.1. Symons, Leslie, 1978, Agricultural Geography, London, Bill and Human Limited, p.33. Visher, Stephen G., 1932, Recent Trend in Geography, Scientific Monthly, 35, p.439. Whitback, R.H., 1932, The Geographic Factor, New York, Century Co., p.87. Wiesner, C.J., 1970, Hydrometeorology, Chapman and Hall Ltd., London, p.232. Department of General & Applied Geography, Dr. H.S. Gour University, Sagar (M.P.) 24
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