NAT.H I S T .BUL L .S IAMS o c .5 4 ( 2 ) :239-260,2006 SA VINGA FOREST:THECOMPOSITIONANDSTRUCTURE OFA DECIDUOUSFORESTUNDERCOMMUNITY MANAGEMENTINNORTHEASTTHAILAND 1 Md.EnamulKabirandEdwardL .Webb ABSTRACT 百l i ss t u d yi n v e s t i g a t e dt h ec o m p o s i t i o na n ds t r u c t u r eo fa560 ・ . h ad e c i d u o u sf o r e s ti n N o r t h e a s tTh a i l a n d白紙 h a sb e e nu n d e rcommunityp r o t e c t i o na n dmanagements i n c e由e 1980s.ηles i t ehadal o n gh i s t o r yo ft i m b e rh a r v e s t i n gf o rl o c a la n dr e g i o n a ln e e d su n t i lt h e wi 出 町i c tp r o t e c t i o na g a i n s t回 ec u t t i n gb e g i n n i n g泊 t h el a t e1 9 8 0 s .Weω t a b l i s h e d 1 9 7 0 s, 3 1t e m p o r a r yc i r c u l a rp l o t si nt h ef o r e s tt os a m p l e田 e s 1 0cmd i a m e t e r( d b h )( 0 . 9 7h a ), s a p l i n g s2 . 5 9 . 9cmdbh( 0 . 0 9h a ), s e e d l i n g s2 . 5cmdbh( 0 . 0 1h a ), andv i n e s / w o o d yc l i m b e r s . Wer e c o r d e d97s p e c i e si n48f a m i l i e s .S i n d o r as i a m e n s i sv a r .s i a m e n s i s, X y l i a巧I l o c a r p av釘 . k e r r i i,E . ηI t h r o p h l o e u ms u c c i r u b r u m,and8 a u h i n i as a c c o c a l y xwere血. emosti m p o r t a n ts p e c i e s i n出i sf o r e s t, anda c c o u n t e df o ra b o u t92%o fa l lr e c o r d e ds t e m s2 . 5cmd b h .Le guminosae, P a p i l i o n o i d e a ewast h emosta b u n d a n tf a m i l yi nt h i sf o r e s t .S p e c i e sc o m p o s i t i o nands t a n d S 官 邸t u r er e f l e c t e d出ef o r e s t ' sd e g r a d e dc o n d i t i o nf r o mp e r s i s t e n td i s t u r b a n c e s .However ,t h e f o r e s ta p p e a r 官dt ober e g e n e r a t i n ga n dt h ev i l l a g e r sh a db e e na b l et oh a r v e s ts e v e r a ln o n t i m b e r f o r e s tp r 叫u c t st os u p p l e m e n tt h e i rl i v e l i h o o d s .Wecompar 官ds p e c i e sc o m p o s i t i o nandf o r e s t 紺u c 旬r eo fKh okBungP r e uf o r e s tw i t ho t h e rs i m i l a rf o r e s t st y p e si n百l a i l a n d .Kh okBung P r e uwasl e s sd i v e r s e由加 f o 問自 u n d e rp r o t e c t i o nm組 agementi nTh a i l a n d .W i t h o u tt h e i n i t i a t i v eo ft h ecommunityl e a d e r s, t h ee x i s t i n gf o r e s twouldh a v eb e e nc o n v e r t e dt oa . 割c u l t u r e 泊t h e1 9 7 0 s .Asar e s u l t , Kh okBungP r e uf o r e s tc o n t a i n saf a i r l yd i v e r s ef l o r aanda p p a r e n t l y r e g e n e r a t i n g町 民 commu 凶t y .Yetp e r s i s 胞n td i s t u r b a n c e sa n dr a r i t yo fs e v e r a ls μ c i e s, combined a g m e n t , i n d i c a t et h a tp r o a c t i v emanagements h o u l dbei m p l e m e n t e d . w i t ht h ei s o l a t i o no ft h i s合' P r o t e c t i o na g a i n s te n c r o a c h m e n t ,i l l i c i tf e l l i n g,c h a r c o a lmaking,s e t t i n gf i r e,g r a z i n g, 釘l d h u n t i n gw i l d l i f es h o u l da s s i s tn a t u r a ls u c c e s s i o no ft h ef o r e s t .Moreover ,r e g e n e r a t i o nc a nb e f a c i l i t a t e dbyp l a n t i n gi n d i g e n o u s田 es p e c i e sa t t r a c t i v et ow i l d l i f e,andbyp r o t e c t i n gs e e d d i s p e r s a la g e n 臼 , p a r t i c u l a r l y合u g i v o r o u sb i r d sa n db a t s .Lo n g t e r mm o n i t o r i n gi sn e e d e dt o a t eo ff o 問: s tr e c o v e r yo rd e g r a d a t i o n,a n dt h ee f f e c t so f d e m o n s t r a t eb o t ht h et r a j e c t o r y釦 dr v i l l a g eu s e r sonf o 悶 s tc o n d i t i o n . 問唱位y ,d i s t u r b a n c e s,d i v e r s i t y,r e m n a n tf o 陀: s t,s t r u c t u r e,Th a i l a n d Keyw o r d s :Communityf o 別 TRODUCTION Forestcoverinτbailandhasdecreaseds u b s t a n t i a l l yduringthel a s t30yearsdueto heavycommercialloggingoft r e e s followedbylarge-scaleconversionofforestlandto non-forestuses.ForestcoverinTh ailandhasdecreasedfrom53%in1961to23%泊 1995 (FAO,1999)and 17%by 1999(PRAYURASIDDHIE TA L .,1999),whichmayhaveresulted ,S c h o o lo fE n v i r o n m e n t,R e s o u r c e s& Development ,Th eA s i a nI ns t i t u t eo f I N a t u r a lR e s o u r c e sManagement T e c h n o l o g y,P . O .Box4,KlongLuang ,PathumTha n i1 2 1 2 0,Tha i l a n d .C o r r e s p o n d e n c e :E .L .Webb,e m a i l : b@a i t .a c . t h ;F a x :662 ・5 2 4 6 4 31.百l ea u t h o r sh a v ec o n t r i b u t e de q u a l 1 yt ot h i sp a p e r . eweb R e c e i v e d25J u 1 y2 0 0 6 ;a c c e p t e d28O c t o b e r2 0 0 6 . 239 240 N OE O W A R DL .W EBB M o .E N A M M U LKABIRA i ng r e a t l yr e d u c e df o r e s tb i o d i v e r s i t y .I np a r t i c u 1 訂, t h en o r t h e a s tr e g i o no fτ b a i 1 a n dh部 u n d e r g o n ea l m o s tt o 凶 c o n v e r s i o nbetween196 0and1990(WES 百 R& Y ONGVANIT , 2 0 0 5 ), fromp r i m a r i 1 yd e c i d u o u sf o r e s tc o v e rt oa g r i c u l t u r ei n t e r s p e r s e dw i t hd e g r a d e df o r e s t p a t c h e s . C o n s e r v a t i o no fb i o 1 o g i c a ld i v e r s i t yi n百 l a i 1 a n dr e q u i r e sn o to n 1 yp r o t e c t e d紅 白 c o n s e r v a t i o n, b u ta l s oe f f o r t st or e s t o r eandp r e s e r v er e m a i n i n gf o r e s t so u t s i d ep r o t e c t e d a r e 部 (VANDERGEEST ,1 9 9 6 ;WITTAYAPAK&DEARDEN ,1 9 9 9 ; JOHNSON&FORSYTH, 2 0 0 2 ) .L o c a l 1 e v e 1community-basedf o r e s tmanagement(CBFM)i ss e e na sonep o s s i b 1 e 紺 a t e g yf o rf o r e s tc o n s e r v a t i o n ,a s1 0 c a lc o m m u n i t i e sc a nc o n t r i b u t et oc o n s e r v a t i o nu n d e r t h ea p p r o p r i a t ec o n d i t i o n s, andwhenc e r t a i n1 e v e 1 so fc o n t r o 1釘 ev e s t e dt othem(Os 百 OM , 1 9 9 0 ;百 APA ,1 9 9 8 ;WEBB& KHURSHID ,2 0 0 0 ;WEBB& GAUTAM ,2 0 0 1 ) .T r a d i t i o n a lo r i n f o r m a l( i .e ., n o ts t a t e s a n c t i o n e d )CBFMi sw i d e s p r e a dt h r o u g h o u tA s i a(Asc 田 R ,1995; PO 開 E 悶 皿GER ,1 9 9 9 )andf o r m a l i z e dcommu 凶t yf o r e s 町 programsa r eg a i n i n gp o p u 1 a r i t y i ns e v e r a 1 Asianc o u n t r i e s( e . g .,FISHER,1 9 8 9 ; GLIMOUR ,1 9 9 0 ; BARTLETT,1 9 9 2 ; ,1 9 9 6 ;ARNOLD ,1 9 9 8 ;POFFENBERGER ,1 9 9 9 ;WITTAYAPAK& DEARDEN , VANDERGEEST 1 9 9 9 ;CHAUDHARY , 2 0 0 0 ;SATO,2 0 0 0 ;WEBB&GAUTAM , 2 0 0 1 ;DELANG, 2 0 0 2 ;JOHNSON & FORSYTH, 2 0 0 2 ;VANDERGEEST ,2003). h官l a i l a n d , communitymanagemento ff o r e s t so c c u r so u t s i d ep r o t e c t e da r e a s, a l t h o u g h o f t e nt h ee f f o r t so fc o m m u n i t i e st op r o t e c to rc 1 a i mf o r e s t sf o rt h e i ru s eh a s1 e dt o c o n f r o n t a t i o n ,c o n f l i c t ,andi nsomec a s e sv i o 1 e n c e(MATSUMURA ,1 9 9 4 ;POFFENBERGER , 1 9 9 9 ;W' I π'AYAPAK,2 0 0 2 ) .Moreover ,血e r eh a sbeenwidep u b l i c i t yandc o 附 o v e r s y s u r r o u n d i n gt h e proposed Thai Community F o r e s t r yB i l ls i n c et h ee a r 1 y 1990s F l 司E NBERGER ,1999),whichhasbeenunderd i s c u s s i o nandr e v i s i o nbyas e r i e so f (PO n a t i o n a lg o v e r n m e n t s,y e th a sf a i 1 e dt op a s st h r o u g hp a r l i 創n en t . I no r d e rt oe v a l u a t ew h e t h e rCBFMc 組 s e r v ea sas i g n i f i c a n tc o n s e r v a t i o nt o o 1i n 官l a i l a n d , r e s e a r c h e r sneedt oi n v e s t i g a t e出ei m p a c t so fCBFMonf o r e s tc o m p o s i t i o n佃 d 柑 u c ω r e .Givent h eh i g hd i v e r s i t yo ff o r e s tt y p e s, b i o g e o g r a p h y, c u l t u r e s,1 a n d s c a p e s,and communitymanagemento b j e c t i v e si nTh a i 1 a n d,出. emostr e l i a b 1 ea p p r o a c ht ou n d e r s t a n d i n g CBFM'sp o t e n t i a lcon 凶b u t i o nt oc o n s e r v a t i o ni s白roughc a s es t u d i e sands i t e s p e c i f i c , t h e r eh a sbeenv e r yl i t t 1 es c i e n t i f i ci n v e s t i g a t i o nont h ec o m p o s i t i o n i n v e s t i g a t i o n .Tod a t e ands t r u c t u r eo fcommunitymanagedf o r e s t si n百 a i 1 a n d( b u ts e eKI 口'E WACHAKULEfAL., 2 0 0 4 ) . 官邸 s t u d yi n v e s t i g a t e dt h ev e g e t a t i o nc o m p o s i t i o nand紺 u c t u r ei nacommunitymanagedf o r e s t泊 N o r t h e a s tτ b a i 1 a n d .Kh okBungP r e u, ar e m n a n tc o m m u n i t y p r o t e c t e d f o r e s ti nNakhonR a t c h a s i m aP r o v 泊c e ,i san加 p o r t a n tcompone 凶 o ft h el i v e 1 i h o o d so f s e v e r a lv i l l a g e st h a ta c c e s sandmanagei t .I ti saw e l l p u b l i c i z e df o r e s ti nTh a i l a n db e c a u s e o fi t sh i s t o r y泊 which出 ev i l l a g e r sovercames i g n i f i c a n t s o m e t i m e sv i o 1 e n t b a r r i e r s , andh a s甜 ong1 e a d e r s h i pande 釘' e c t i v emanagemen t .Th i sf o r e s ti sc o n s i d e r e da“ s u c c e s s f u 1 communi 旬f o r e s t "fromas o c i a lp e r s p e c t i v e ,butr e q u i r e sq u a n t i t a t i v e蜘 dyt oa s c e r t a i n t h eb i o 1 o g i c a ls u c c 四 so fcommunityp r o t e c t i o nandmanagement. COMPOSITION AND STRUCTURE OF A COMMUNITY-MANAGED DECIDUOUS FOREST 241 MATERIALS AND METHODS Study Area Khok Bung Preu is a remnant, lowland deciduous forest located in Dan Khuntot District, Nakhon Ratchas.ima Province, Northeast Thailand (Fig. 1). It is an isolated 560ha forest fragment surrounded mainly by agricultural land and settlements. T he topography is f lat and at an elevation of 240 m msl. The soil is a well-drained sandy loam. The climate is tropical seasonal monsoon with a rainy period from June to October and a mean ann ual rainfall of about 950 mm (Fig. 2). There are three seasons, namely hot and dry from March to April , rainy from May to October, and dry from November to May. The mean monthly temperature is 27"C with the mean maximum of 31 ·c in April and minimum of 23 ·c in December (Fig. 2). During the dry season, temperatures can reach 4o·c or more. The mean monthly humidity of the study area is 70% . The vegetation is highly susceptible to fire in the dry season. N A 00 200 100 0 1m 200 1~ 100 400 Kilometers Figure I. Study area. Black clot show in g the location of Khok Bung Preu forest in Nakhon Ratchasima Province in Northeast Thailand . 242 MD. E NA MMU L K AB IR AND EDWARD 50 L. W EBB . - - - - - - - - - - - - - - - - - - - - - r 3500 --+-- Temperature u 40 3000 -+-- Rainfall 2500 .- 0 ~ 30 2000 :::J ~ Q) 0.. E E E - 1500 ~ c ro 1000 0::: 20 Q) I- 10 500 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Month Figure 2. Meteorological data (1981 - 2001) from meteorological station number 431201 based in Nakhon Ratchasima. Source: Meteorologi cal Department of Thailand. Survey Design To understand the history of the site and contemporary management patterns, key informant interviews and opportunistic informal group discussions were held with people living in the vicinity of the forest. Key informants were purposively selected among elderly villagers, village leaders, township administrative officials, local forest officials, and members from the forest management committee. Informal group discussion and key informant interviews provided us the inf01mation on site history, history of community forest forn1ation , forest management practices, and forest resources use. We investigated the vegetation composition and structure ofKhok Bung Preu community forest by using a 3-stage random sampling method to establish 31 0.03-ha temporary sample plots. Using GPS combined with mapping of the existing forest patch from an orthorectified Landsat ETM+ image (acquisition date February 18, 2002), we established a temporary transect that bisected the forest in a N-S direction. Subsequently we randomly selected 31 points along the transect. At each point, we randomly chose a direction (east or west) by flipping a coin, randomly selected a distance between each point and the edge of the forest using a random number generator, and then entered that coordinate into the GPS. After finding the coordinate on the ground, we established the center of each vegetation plot. In this way, every point in the forest had an equal chance of being selected as a plot location. The final plot locations are shown in Figure 3. Vegetation plots were concentric circles of 1, 3, and 10-m radius, totaling 0.01, 0.09, and 0.97 ha, respectively. In each 1-m plot all woody stems with a diameter at 1.3 m height (dbh) 2.5 em or with a height less than 1.0 m (referred to as seedlings) were identified and tallied. In the _3-m plots, aU woody stems with a dbh 2.5-9.9 em (saplings) were identified, and the dbh and height recorded. In the 10-m plots all trees with dbh 10 em were identified and measured for dbh and height. In all plots, vines/woody climbers were COMPOSITION ANDSTRUCTUREOFA COMMUNITY-MANAGEDDECIDUOUS FOREST 2 Kilometers pd 'EL -、 免u n u n し し ρv V ハU OH o b ma 00 刊 。 2 4 3 -t i lei l 1 1a g 巴o fpa th1 28出 l c lr ow 50( a c qu is i t ionc l a l eFeb r u a r y1 8, 2002)s howi ng F i g u l巴 3.LandsatETM+WRS2 KhokBungPr euf o r es t( pu r p le )i nNorrheas lT h a il and.Whitep o i n tsa r el hel o c a t i o nso f31r an c lol l l ly S 巴l e ct e c ls a l l l p lep l o ls .Thr e epl o l sa r ev e r yc i o s ei nt henonher n1ll0S 1p a r lo fI hef o r e sl ,andt wopl ot s 1 1o feachol hera nd出 er epr e s en t e c lbyas i ngl 巴 p oi nl . Y巴1I0wp oi nt s出 et h 巴 l ocal ions ar ewi t h i n501 巴 m山 nl ls erandman agem巴n lg r oupvi l l ag e s .Agr icu l t u r a ll a nc l ss u r r o u n c lt h ew巴s la n c ls ou l h o fl het h r e r a c ledb a r r enl an c lsa n c ls et l lel l len tsa r e" 1 0t hen o r t h巴as to ft hef o r e st . s i c leofKhok Bung P r e u ;d巴g 244 M o .ENAMMULKABIRANOEOWAROL .WEBB i d e n t i f i e dandt a l l i e d .T r e ed i a m e t e r sw e r em e a s u r e du s i n gad i a m e t e rt a p eandh e i g h t s werec a l c u l a t e du s i n gaSUUNTO O lc l i n o m e t e r .Vouchers p e c i m e n sw e r ec o l l e c t e dand i d e n t i f i e dbyJ .F .Maxwell,a n dd e p o s i t e d泊 t h eh e r b a r i u mo fC h i a n gMaiU n i v e r s i t y, Th a i l a n d . ,2003,a f t e rt h er a i n y Thef i e l dworkwasc o n d u c t e dd u r i n gNovembera n dDecember s e a s o nandd u r i n gt h eb e g i n n i n go ft h ed r ys e a s o n .百l e r e f o r e, o u rr e s u l t su n d e r e s t i m a t et h e t o t a ld e n s i t yandd i v e r s i t yo ft h eg r o u n df l o r a . ,wec a l c u l a t e dt h ea v e r a g es p e c i e s a r e a Tov e r i f yt h ea d e q u a c yo ft h es a m p l i n ge f f o r t c u r v e s( O s τ'ROM,1 9 9 0 )o f位' e e s,s a p l i n g s,a n ds e e d l i n g ss e p a r a t e l y .Themeanc u r v e s u g g e s t e d由a to u rr e s u l t sp r o v i d e dav e r ygoodp i c t u r eo ft h ec o m p o s i t i o nands t r u c t u r e t . o ft h ef o r e s DataA n a l y s i s Abundance,b a s a la r e a ,f r e q u e n c y,andi m p o r t a n c ev a l u e sf o rt r e e sands a p l i n g so f e a c hs p e c i e swerecomputed(Cox ,1 9 9 0 ) .官 l ei m p o r t 佃 c ev a l u ei n d e x( I V I )i s白 esumo f r e l a t i v ea b u n d a n c e ,r e l a t i v eb a s a la r e a ,andr e l a t i v ef 詑q u e n c y .R a r e f a c t i o nc u r v e sw e r e c o n s t r u c t e dt oe x p r e s st h ee x p e c t e dnumbero fs p e c i e sfromar a n d o m l ys e l e c t e dnumber o fi n d i v i d u a l sf r o mt h ef o r e s t .P r e s e n c e a b s e n c ed a t af o rs e e d l i n g sa n dv i n e s / w o o d yc l i m b e r s w e r ea n a l y z e dt ocomputes p e c i e sr e l a t i v ef r e q u e n c i e si nt h ef o r e s t . D i v e r s i t yi n d i c e sm a t h e m a t i c a lm e a s u r e so fs p e c i e sd i v e r s i t yi nacommunityp r o v i d e di n f o r m a t i o na b o u tcommunityc o m p o s i t i o nt a k i n gt h er e l a t i v ea b u n d a n c e so f d i f f e r e n ts p e c i e si n t oa c c o u n t .T r e eands a p l i n gd i v e r s i t i e sw e r ed e t e r m i n e du s i n gs p e c i e s r i c h n e s si n d i c e sNo( a b s o l u t er i c h n e s s ), R1(MARGALEF ,1 9 5 8 ), a n dR2(MENH 凹I C K ,1 9 6 4 ) . Wea l s oc a l c u l a t e dtwow i d e l yu s e dm e a s u r e so fs p e c i e sd i v e r s i t yi n d i c e s,S i m p s o n ' s λ ( S I M P S O N,1 9 4 9 )佃 dS h a n n o n 'sH '(SHANNON& WEA VER ,1 9 4 9 )a sw e l la stwos p e c i e s dominance泊d i c e s,N1( n u m b e ro fd o m i n a n ts p e c i e s )a n dN2 ( n u m b e ro fv e r yd o m i n a n t s p e c i e s )[ H I L L ,1 9 7 3 ] .Twoe v e n n e s si n d i c e s,P i e l o u ' sJo rE l( P I E L O U ,1 9 7 5 ;1 9 7 7 )and E s( H I L L ,1 9 7 3 ),w e r ea l s oc o m p u t e d .TheBASICp r o g r 創 nS PDIVERS.BAS(LUDWIG& REYNOLDS,1 9 8 8 )wasemployedt oc o m p u t et h ei n d i c e su s i n gs t e m sha- 1• Thec o m p o s i t i o nands 甘u c t u r eo fKh okBungP r e uf o r e s twascomparedw i t ho t h e r p u b l i s h e ds t u d i e sfromTh a i l a n d . However ,oned i f f i c u l t yw i t hc o m p a r i s o n si st h a t n o m e n c l a t u r ef o rf o r e s tt y p e si nTh a i l a n dd i f f e r samongr e s e a r c h e r s .MAx WELL( 2 0 0 4 )h a s i d e n t i f i e dt h ea m b i g u i t i e so ff o r e s tt y p en o m e n c l a t u r ef o r百 聞l a n d ,andhes u g g e s t e da s i m p l i f i e dv e g e t a t i o nc l a s s i f i c a t i o nf o rt h ec o u n t r y .A f t e rc o n s i d e r i n gMAXWELL's( 2 0 0 4 ) c l a s s i f i c a t i o n , weu s e ds t u d i e st h a twew e r ec o n f i d e n tt obes i m i l a rt ot h eKh okBungP r e u f o r e s t . RESULTS S i t eH i s t o r y Theo r i g i n a lT h a iKh o r a ta n dLaos e t t l e m e n t si nt h es t u d ya r e aw e r er e p o r t e d l y h r o u g hm i g r a t i o nf r o mDaNokandDaNaii nNakhon e s t a b l i s h e da r o u n dt h e1 8 3 0 s,t R a t c h a s i m aP r o v i n c e .百 l ep o p u l a t i o ni n2004i nTambonS r aC h a r o k h e a( S u b d i s t r i c t )was COMPOSITIONANDSTRUCTUREOFA COMMUNITY-MANAGEDDECIDUOUSFOREST 2 4 5 2a /km ndu n e v e n l y 5678 ( m a l e s2816andf e m a l e s2 8 6 2 )w i t had e n s i t yo f6 7p e o p l e d i s 凶b u t e da r o u n dt h ef o r e s t .A p p r o x i m a t e l y90%o f出ep e o p l el i v i n ga r o u n dt h ef o r e s t釘 e f a r m e r sg r o w i n gr i c e ,c o r n ,c h i l i e s,c a s s a v a ,andr e a r i n ga n i m a l ss u c ha sc h i c k e n sa n d c a t t l e .Th ea v e r a g el a n dh o l d i n go fe a c hh o u s e h o l di s2. 4 0h a .Ol dh o u s e s,t e m p l e s,s h o p s ando t h e r柑 u c 伽r e s泊 t h e訂 ' e a紅 ec o n s t r u c t e do fwood ,w h e r e a snews t r u c t u r e sa r emade f r o mb r i c k sandc o n c r e t ed u et od e p l e t i o no ft i m b e rf r o mt h ef o r e s t . 百l eh i s t o r yo ft h ef o r e s t ,a st o l dbyt h ee l d e r so ft h ev i l l a g e s,i soneo fc o n t i n u o u s f o r e s td e s t r u c t i o nl e a d i n gt oc o l l e c t i v ea c t i o nt op r o t e c tt h erema 泊i n gd e g r a d e df o r e s t合om c o n v e r s i o nt oa g r i c u l t u r e .A s i d ef r o mt h ei m m e d i a t ec o n v e r s i o no ft h ei n i t i a l l yv a s tand i n t a c tf o r e s tt oa g r i c u l t u r ebyt h eo r i g i n a ls e t t l e r s,血eh i s t o r i e sweh e a r dwereo n l ya b l e t oc o n f i r mt h a tt h ef o r e s thadc o n t i n u o u s l ys h r u n ks i n c et h eo r i g i n a ls e t t l e m e n t swere f o u n d e d .I n t e n s i v eh a r v e s t 泊 go ff o r e s tt r e e swasp r e v a l e n ti nKh okBungP r e us i n c et h e 1 9 5 0 s,m a i n l yf o rp r o d u c i n gc h a r c o a l,r a i l w a ys l e e p e r s,' a n dwoodf o rb u i l d i n g si n由e s u r r o u n d i n gv i l l a g e s .Asp o p u l a t i o nd e n s i t yi n c r e a s e d , t h ec o n v e r s i o no ff o r e s tt op e r m a n e n t a g r i c u l t u r ee s c a l a t e d . 百l ei d e ao fc o n s e r v i n gt h ef o r e s ta r o s ei nt h e1 9 7 0 swhent h er e m a i n i n gf o r e s tc o v e r e d a p p r o x i m a t e l y 1520h a . Oneo ft h ec o n s e r v a t i o n o r i e n t e dv i l l a g eheadmenopposed c o n v e r s i o no ft h i sf o r e s tt oa g r i c u l t u r a l l a n d .Hewasl a t e ra s s a s s i n a t e dbyunknownk i l l e r s whow e r er e p o r t e d l yh i r e dbysomeoneo u t s i d et h ev i l l a g e st oe n c r o a c hont h i sf o r e s tf o r a g r i c u l t u r a lc o n v e r s i o n .A f t e rt h ea s s a s s i n a t i o n ,a p p r o x i m a t e l y900hawerec o n v e r t e dt o a g r i c u l t u r a lf i e l d s .L o c a lv i l l a g el e a d e r s,r e a l i z i n gt h ed a n g e ro fd e f o r e s t a t i o n ,begana p r o c e s so fc o n v i n c i n gt h eo t h e rv i l l a g e r so ft h ei m p o r t a n c eo fs u s t a i n a b l ef o r e s tp r o t e c t i o n a n de s t a b l i s h e dt h e m s e l v e sa sa“ s e l f d e f e n s ev i l l a g e " , w h i c hi n c l u d e db o t ha c t i v eP t : O 飽c t i o n o ft h ef o r e s ta sw e l la st h ee s t a b l i s h m e n to fv a r i o u sc o m m i t t e e ss u p p o r t i n gf o r e s tp r o t e c t i o n . I n1988t h evi 1 l a g e r sa g r e e dt os t o pc u t t 泊 gt r e e si nt h ef o r e s tf o r佃 ypu 甲o s e .I n1992, t h ec o m m u n i t i e sp r o p o s e d白紙 t h ef o r e s tb er e g i s t e r e da sacommunityf o r e s t泊 出e CommunityF o r e s tO f f i c eo ft h eR o y a lF o r e s 町 D e p a r t m e n t ,whichr e c o 伊i z e d血i sf o r e s t a sacommunityf o r e s tu n d e rt h emanagement阻 dj u r i s d i c t i o no ft h el o c a lc o m m u n i t i e si n 1 9 9 8 . F o r e s tManagementP r a c t i c e s S e v e r a lv i l l a g eheadmeni nc o n s u l t a t i o nw i t hv i l l a g e r sa l o n gw i t ht h et e c h n i c a la s s i s t a n c e f r o mp r o v i n c i a lf o r e s to f f i c i a l sf o r m e dt h eKh okBungP r e uF o r e s tManagementCommittee, whichc o n s i s t e do f310membersh e a d e dbyap r e s i d e n t .百 r r e ev i l l a g e s, namelyBanLung (moo1 ), BanNonBoad(moo乃 ,a n dBanT r a iTong(moo1 2 )o fTambonS r aC h a r o k h e a ( S u b d i s t r i c t ), c o n s i s to fat o t a lo f310h o u s e h o l d sa n dw e r et h emainu s e rg r o u p so fKh ok BungP r e uf o r e s t .An yonea c c e s s i n ga n du s i n gKh okBungP r e uf o r e s to u to ft h o s e310 h o u s e h o l d swasd e s i g n a t e da sa no u t s i d eu s e r .百l eh e a do fe a c hh o u s e h o l dfromt h e v i l l a g e sw儲 byd e f a u l tt h emembero ft h eManagementC o m m i t t e e . τ' h eh e a do f血e TambonS r aC h a r o k h e a( S u b d i s t r i c t )wass e l e c t e da st h ep r e s i d e n to ft h eManagement Committeef o rl i f e .R u l e sa n dr e g u l a t i o n sr e l a t e dt oa c c e s s,u s e ,c a r e ,m o n i t o r i n g ,and s a n c t i o n sw e r ef o r m e dbyt h eManagementC o m m i t t e e .An ymembero ft h eManagement Committeec a np r o p o s eac h a n g ei n出er u l e sa n dr e g u l a t i o n sr e l a t e dt of o r e s tm佃 a g e m e n t , d e v e l o p m e n t ,c o n s e r v a t i o n ,andu t i l i z a t i o nd u r i n gt h eg e n e r a lm e e t i n go ft h eManagement Committee ,w i t haf m a ld e c i s i o nmadet h r o u g hav o t e .A t e a mo f6 8p e r s o n sv o l u n t a r i l y 246 Mo.ENAMMULKABIRANDEOWAROL .WEBB pa 住o l st h ef o r e s tonad a i l yb a s i sd u r i n gt h e命ys e a s o n ,whent h e r ei sah i g hr i s ko ff o r e s t a t r o l l i n gi sn o tda i 1 yb u ta tr e g u l a ri n t e r v a 1 s .Th e f r r e .D u r i n gt h er e m a i n i n gmonths,p p e r s o n sd e s i g n a t e df o rp a t r o l l 泊gw ereg i v e nt e c h n i c a l位a i n i n g泊 f o r e s tpa 住o l l i n gandon 白eu s eo ff r r e a r m sbyt h ep r o v i n c i a 1f o r e s to f f i c e .L a t e re a c ht r a i n e dp e r s o nwasg i v e na a 1g o v e r n m e n t .A p p r o x i m a t e l y1 0 0v o l u n t e e r s( 1 o c a 1 1 yc a 1 1 e d l i c e n s e df r r e a r mbyt h el o c l o s o a t o h p o )amongt h emainu s e rg r o u p sa 1 s oh a v eb e e nt r a i n e dbyt h ep r o v i n c i a lf o r e s t o f f i c et oa s s i s tt h eManagementCommitteei nf o r e s tp r o t e c t i o na n dc o n s e r v a t i o na c t i v i t i e s . T r a i n e dv o l u n t e e r s紅 es u p p o s e dt op r o v i d es i m i 1 a rt r a i n i n g泊 f o r e s tp r o t e c t i o nand c o n s e r v a t i o nt oo t h e rcommunity members i nc o l l a b o r a t i o nw i t ht h eRoyalF o r e s t Dep 釘 t men t . O p e r a t i o n a 1r u l e sgovem血eu s eo ft h eKh okBungP r e uf o r e s tbyb o t ht h emaina n d o u t s i d eu s e rg r o u p s .Asas t a n d a r dr u l e,c o l l e c t i o no faw i d ev a r i e t yo fn o n t i m b e rf o r e s t 1 10wedf o rb o t hc o n s u m p t i o na n ds a 1 ebymemberso ft h emainu s e rg r o u p s . p r o d u c t si sa O u t s i d eu s e rg r o u p sa r eo n l ya 1 10wedt oh a r v e s tc e r t a i nn o n t i m b e rf o r e s tp r o d u c t sf o r 中o s e s ,and釘 ' ef o r b i d d e nt oc a r 可紅白c u t t i n ge q u i p m e n t凶 ot h ef o r e s t .Th e s u b s i s t e n c epu o p e r a t i o n a 1r u l e sp r o h i b i te n c r o a c h i n gonf o r e s tl a n d , i l l i c i t l yc u t t 泊 gf o r e s tt r e e s, making c h a r c o a l ,c o l l e c t i n gt i m b e rf o rc o m m e r c i a lp u r p o s e s,s e t t i n gf r r e s,g r 沼 恒go rb r o w s i n g u n t i n gw i l d l i f e . A monet 釘 yf i n efrom 500t o1 0, 000Bahtupont h e c a t t l e,andh recommendation企' o mt h eManagementCommitteei sc h a r g e dt oa n yf i r s t t i m e0 百e n d e r , makesc h a r c o a l , c a r r i e s回 ec u t t i n ge q u i p m e n to rh u n t swi 1 d l i f e .A 2, 000 whof e l l st i m b e r t o1 0 , 000Bahtfmei sc h a r g e dt oa n yf i r s t t 加 eo f f e n d e rwhoe n c r o a c h e sf o r e s tl a n d sf o r a 1o rcommerci a 1u s e ,g r 但 e sc a t t l e ,o rs t 紅t sf r r e s .S e c o n d t i m e0 百e n d e r sa r et obe p e r s o n t a k e nt oco 町t f o rt h ea d d i t i o n a 1punishmenta l o n gw i t ht h efmei s s u e dbyt h eManagement C o m m i t t e e . F o r e s tR e s o u r c e sUse A widev紅 i e t yo fn o n t i m b e rf o r e s tp r o d u c t sw e r eh a r v e s t e donar e g u 1 a rb a s i s合om Kh okBungP r e ucommunityf o r e s tbybo 血m aina n do u t s i d eu s e rg r o u p s .Twov a r i e t i e s l o c a 1 1 yc a 1 1 e dh e tl a n g o oa n dh e tk h u n,wereh a r v e s t e dp r i m a r i l yf o rs a 1 e o fmushrooms, ぽ g r o u p s .T e n d e rl e a v e so f“ ' p h a kwan"( M e l i e n t h as u a v i sP i e r r es s p .s u a v i s byt h emainu s [ O p i 1 i a c e a e ] ), werem a i n l yh a r v e s t e df o rs e l f c o n s u m p t i o nw i t hnor e s t r i c t i o non出eq u a n t i t y h紅 v e s t e d阻 dc o n s u m p t i o np a t t e m .An te g g swereh a r v e s t e dbyt h emainu s e rg r o u p s m a i n l yf o rs e l l i n ga sf o o da n da sf i s h i n gb a i t .Wi 1 d企u i t so ft o nkhop( F l a c o u r t i ai n d i c a a k h r a o( S c h l e i c h e r ao l e o s a( L o u r . )Oken),somkung(A m p e l o c i s s u sm a r t i n iP l よ Meηよ t nomwua( F i s s i s t i g m al a t i f o l i u mMerr ふ kuyetao( P u e r a r i at h o m s o n i iB e n t h よ andt i n g ωng( G e t o n i a f l o r i b u n d aR o x b . )w e r ec o l l e c t e dbyt h emainu s e rg r o u p sm a i n l yf o rs e l l i n g, w i t hnor e s t r i c t i o nonq u a n t i t yh a r v e s t e da n ds a 1 e .A l o c a 1v e g e t a b l ec a l l e dphaksams i p ( A s p a r a g u sr a c e m o s u sWi 1 1 d )wascommo n 1 yh a r v e s t e df o rc o n s u m p t i o n .Makhampoam ( P h y l l a n t h u se m b l i c aLよnoot a i y a n g(C l i . ωr i ah a n c e a n aHems 1 . ) ,h a t 加 , k hun(Micromelum minutum( 0 .F o r s t . )Wight& Amよ a n dk h a tkhao( R a n d i ah o r r i d aRoem.& S c h u l t . )were 血. em a j o rh e r b sh a r v e s t e dbymostp e o p l ef o rm e d i c i n a 1u s e .Toadsandf r o g s,l i z a r d s, r a b b i t s , wi 1 dc h i c k e n s , b i r d s, s q u i π ' e l s, a n dbamboos h o o t swereh a r v e s t e dm a i n l yf o rf o o d . Yana ,aclimber,w部 usedt omaker o p ef o rr o o f m g . I na d d i t i o nt on o n t i m b e rf o r e s tp r o d u c t s,t h e r ew e r es e v e r a 1o t h e rp r o d u c t s白 紙 c o u l d beh a r v e s t e du n d e r印 刷i nr e s t r i c t i o n ss u c ha st i m b e r ,f i r e w o o d ,andhoney,f o rwhich COMPOSITION AND STRUCTURE OF A COMMUNITY-MANAGED DECIDUOUS FOREST 247 outside user groups had no access. Harvest of timber without permission was also banned for the main user groups. With approval from the Management Committee, timber could be harvested during stressful periods due to natural disasters such as fire and storms or for building and/or renovating public buildings such as the school, temple or community center. Fuel wood could be collected only for household use. Honey could only be harvested without causing any damage to the vegetation of the forest. The only non-consumptive use of the forest was utilization of a place in the forest called the ' house of spirits', locally "san chao", which vil lagers would occas ionally visit to pray. Species Composition and Diversity A total of 97 species in 48 families were recorded: 39 species in 23 families were trees, 31 species in 21 families were saplings, 48 species in 30 families were seedlings, and 10 species in 8 families were vines and woody climbers (Table 1). Families with the most species were Leguminosae, Papilionoideae (8), Rubiaceae (7); Leguminosae, Caesalpinioideae (6), and Gramineae (5). Approximately 23% of the total number of families (11/48) had more than 3 species and the remaining 77 % of families (37 /48) had only 1 to 2 species each. Approximately 26% of tree species were represented by 1 individual ha- 1 and 39% of the sapling species were represented 11 individuals ha- 1 (Figure 4). Sindora siamensis var. siamensis, Xylia xylocarpa var. ke rrii , Erythrophloeum succirubrum, and Bauhinia saccoca/yx were the 4 most common species in this forest, accounting for 92% of the stems 2.5 em dbh. Shorea siamensis var. siamensis and Dipterocarpus gracilis represented the only 2 species of Dipterocarpaceae. The tree community was dominated by X. xy/ocarpa var. kerrii and Sindora siamensis var. siamensis. The sapling community was dominated by Sindora siamensis var. siamensis, B. saccocalyx, and E. succirubrum (Table I). 30 25 Q) tl c 20 ro c ::l .a 15 ro -Trees --o- Saplings TI Q) > w 10 Qi 0:: 5 0 0 5 10 15 20 25 30 35 40 45 Species rank Figu re 4. Spec ies-rank plots of trees and sapl ings of Khok Bung Preu forest in Northeast Thai land. Total area sampled for trees 0.97 ha and for sap lings 0.09 ha. F a m i l y H a b i t T悶 A A S e e d l i n g s BA l V l NPRF V i n e /W o o d yc 1 i m b e r A RF NPRF 2 . 0 6 3 . 4 1 . 0 3 1 . 7 5 . 3 5 . 3 1 .0 30 . 0 2 1 .3 . 0 1 1 11 6 . 2 1 .0 30 . 1 3 3. 3 3 0. ・内 ∞0.59 37.5 2 0 0 . nunUAU 司 t , 司 , -7 - ﹃ 2 . 0 6O . ω 'A 勾4 0ツ a u 1 . 0 30 . 0 1 4 . 12 0 . 18 1 0. 310 . 11 2 2 . 2 2 0 . 0 4 5 . 1 7 . 2 2 0 . 14 6 . 9 1 . 0 30 . 0 1 1 . 1 1 1 . 11 0 . 0 3 2 . 9 . 8 3.ω0.04 2 2 . 4 5 5 . 5 6 0 1 3 . 4 00 . 16 1 . 18 1 1 .8 0 . 7 1 .2 . 3 . 0 90 . 0 5 3 0 4 4 . 4 4 0 . 18 1 . 0 3 2 8 5 . 2 3 . 0 90 . 16 4 . 1 11 Il l 1-1 1 1 . 2 5 1 0 . 7 5 5. 56 0 nununu • 4 . 12 0 . 0 6 2 . 7 1 . 3 司 ' ' 司 , , 司 , , - . 0 1 1 . 0 30 2 0 . 0 5 3. 3 o . ω 2. 5 9 . 2 80 . 12 7 . 9 3 8. 14 0. 4 7 2 8 . 2 1 33 0 . 3 72 5. 4 3 3. 6 4 . 0 窓口・閏Z﹀冨玄CF関﹀国岡田﹀Zロ関口当﹀同U F・4宅開園田 0 . 7 ・' ・O ・ 'l 7・ 3 L e g u m i n o s a e , M i m o s o i d e a e A戸 c y n a ω a e 帥 A l a n g i a c L e g u m i n o s a e , Mimωoid 伺e V i 胞c e a e E u p h o r b i a 関節 E u p h o r b i a c e a e M e l i a c e a e , C a e s a l p i n i o i d e a e L e g u m i n o s a e B o m b a c a c e a e 面 白s a e ,C a e s a l p i n i o i d e a e L e gum , P a p 出o n o i d 蹴 L e g u m i n o s a e B u r s e r a c e a e L e c 帥i d a c e a e 伺e . , C a e s a l p i n i o i d e a e L e g u m i n o R u b i a c e a e V i t a c e a e G u t t i f e r a e L e g u m i n o s a e ,P a p i 1 i o n o i d e a e C o m m e l i n a c e a e L e g u m i n o s a e , P a p i 1 i o n o i d e a e G r a m i n e a e E b e n a c e a e E b e n a c e 温E E b e n a c e a e 組曲a 閃a e Ac O i p t e r o c a r p a c e a e C o m p o s i t a e C o n n a r a c e a e C a e s a l p i n i o i d e a e L e g u m i n o s a e, C o m p o s i t a e 舵vTTHTTTTTHHTTTTHTHHTHTTTHTHTTH A c a c i ac s e s i aι)W i l l d .v a r .s u b n u d a( C r a i b )N i e l s . A g a n o s m a刷 r g i n a ωG.Oon 醐 , s a l v i i f o l i u m( 1 . f . )W a n g .s s p .h e x a p e t a l u m( L m k . )W a n g . A l a n g i A l b i z i ao d o r a t a s s i m a( 1 . f . )B血. A m p e l o c i s s u s脚 r t i n iP. l A n t i d e s m ag h a e s e m b i l l aG a e r t n . A p o r u s ao c t a n d r a( H a m .e xO .O o n )V i c k .v a r .o c t a n d r a A z a d i r a c h t ai n d i c aA .J u s s . B a u h i n i as a c c o c a l y xP i e r r e i e r r ev a r .a n c e p s B o m b a xa n c e p sP C a e s a l p i n i ad , 砂naRo 凶. C勾' a n 凶 s c a r a b a e o i d e s( 1 . )百10U.v a r .s c a r a b a e o i d e s , 聞 r i u ms u b u l a t u mG u i l l . Ca C a r e y aa r b o r e aR o x b . C a s s i af i s t u l aL . Ca 印 刷r e g a mω' m e n t o s a( B . le xO C . )T i r v . C i s s u sr e p e n sL m k . C r a t o x y l u mt h o r e l i iP i e r r ee xG a g n e p . . l&P e π . C r o t a l a r i ag o r e e n s i sG u i l C y a n o t i sc r i s t a t aι . ) 0 .Do n D a l b e r g i am e r i c a nG r a h a me xB白. D i g i t a r i as e t i g e r aRo 血e xR o e m .&S c h u l . t D i o s p y r o sb e j a u d i iL e c . D i o s p y r o sm o l l i sG r i 丘 D i o s p y r o sm e r i c aR o x b . D i p t e r a c a n t h u sr e p e n s( L . )Hぉs k . D伊' t e r o c a r p u sg r a c i l i sB. l E l e p h a n t o p u ss c a b e rL .s s p .s c a b e rv a r .s c a b e r u r zv a r . ωm e n ωs u s E l l i p a n t h u st o m e n t o s u sK E r y t h r o p h l o e u ms u c c i r u b r u mG a g n e p . E u p a t o r i u mo d o r a t u mL . S a p l i n g s S BA l V 1 ∞ S 戸c i 凶 MhF T a b l e1 .L i s to fs p e c i e sf o u n di nKh okBungPre uF o r e s ti nN o r t h e a s t百 a i l a n d .Herb但 ) ,S 駐日b( S ),T r e e( T ),V i n e( V ),Woodyc l i m b e r(WC ) .A,a b u n d a n c e( h a -I); BA , 2h b a s a la r e a(m a -I); IVI,i m p o r t a n c ev a l u ei n d e x ;NPi s血巴 numbero fp l o t ( s )i nw h i c ht h es p e c i e swぉ f o u n d ;RF,r e l a t i v ef r e q u e n c y . S p e c i e s F a m i l y H a b i t T r e e s S a p l i n g s A S e e d l i n g s V i n e/W o o d yc l i m b e r BA I V I NP RF A RF NPRF 0 . 7 2 1 .3 nununυ 勾 ' ' 司 , , 円 , , - 1 . 0 30 . 0 1 1 . 1 1 . 0 30 . 0 4 1 6 . 5 . 3 8 8 . 8 9 0. 13 1 4 . 1 4 2 . 6 5 3 . 3 . 2 5 1 3 .0 90 . 0 3 3 7 .7 8 0 5 . 0 . 5 7 1ω0.03 2 . 7 4 60 . 2 3 1 4. 1 3 . 12 9 . 1 1 5. 33 0 3. 0 . 7 2 1 .3 2 2 . 2 2 0 . 0 9 4 . 9 5 3 . 3 0 . 7 司' n H v r n v ' r n u 内 , 勾 dnHU d O 来U ••. d ・ ZJo'' 1 、 司 5 . 3 Mhp 1 . 0 3 1 .7 0 . 0 1 2 . 2 。 - l l • 、 句、 , 2 . 0 60 . 0 2 1 . 0 3 4 . 6 2 2 . 2 2 0 . 8 nu 44aaマAU 4, 弓 0 . 0 5 3 . 3 0 . 0 1 2 . 2 ・ 5 . 15 0 . 10 5 . 1 11 . 0 1 1 1 . 0 3 0 . 1 . 12 5 8 . 2 50 . 6 ••••• 弓 2 . 2 2 0 . 0 5 3 2 . 0 60 .8 2 . 0 3 1 . 9 37' laa--a . 0 1 2 1 1 . 11 0 . 3 7 7. 78 0 . 11 1 3 . 0 i m c q﹃CMN開 。 明 ﹀ AUO宮室CZHIHad?玄 ﹀Z﹀。開U U問。問。coc臼司o m開印、﹃ 1 .0 3 1 7 . . 8 9 5 3 2 . 0 Il l 1-1 HHTTTSH舵SHTHHTTTSTHTTTHTTTTTTHHTVT E v o l v u / u sa l s i n o i d e s( 1 . )v a r .d e c u m b e n s( R .B r . )O o s l . F i m b r i s t y l i ss m i t i n a n d i iT .K o y . G a r d e n i as o o t e p e n s i sH u t c h . G m e l i n aa r b o r e aR o x b . G r e w i ae r i o c a r p aA .J u s s . G r e w i am e r i c aV油l H a p a l , 初eb e n t a h m i a n aS c h o t t H a r r i s o n i am e r i c a n a( B l a n c o )Me 町. H e l i c t e r e sl a n a t a( T e i j s m .&B i n n . )K u r z H e t e r o p o g o nc o n t o r ωs( L . )P .B e a u v .e xR o e m .&S c h u l l . H y m e n o d i c t y o no r i x e n s e( R o x b . )M a b b . H y p s e r p an i t i d aM i e r s K a e m p f e r i as i a m e n s i sS i r i L a g e r s t r o e m i ac o c h i n c h i n e n s i sP i e r r ee xG a g n e p . L a g e r s t r o e m i aj 1 0 r i b u n d aJ a c k .v 釘 .b r e v i f o l i aC r a i b μ' n n e ac o r o m a n d e l i c a( H o u t t . )M e r r . L e e aa e q u a t aL . L i m o n i aa c i d i s s i m oL . L i n d e r n i am e r i c a n a( L . )F .M u e l l .v 紅 .m e r i c a n a r . )C . B .R o b .v 訂 .g l u t i n o s a L i t s e ag l u t i n o s a(Lou M a r k h a m i am e r i c a n aS e e m .e xK .S c h u m .v 訂 .s t i p u l a ω M e m e c y l o ns c u t e l l a t u m(Lou r . )N a u d . M e r r e m i am e r i c a n a( L . )H a l . lF .民p .o r i e n t a l i s( H a l . lF . )O o s l . M i c r o c o sp a n i c u l a t aL . M i c r o m e l u mm i n u t u mσ ' o r s . tf . )W i g h t&Am. M i n 凶a 'v e l u t i n a( D u n . )H k .F .&百1. M i l l e t t i ax y l o c a r p aM i q . M i t r a g y n ar o t u n d i f o l i a( R o x b . )O .K . M o r i n d ac o r e i aH畑 . M u r d a n n i an u d i f 1 0 r a( L . )B r e n . M u r d a n n i as p e c t a b i l i s(Ku r z )F a d . 加ai n t e g e r r i m o(Lo肌)M e r r . O c P a c h y g o n ed a s y c a r p aK u r z e n t o s aR o x b .e xS m .v a r . ωm e n ω' s a P a v e t t aωm BA I V I ・ 同 。。玄明。切口同OZ ﹀ZU 臼 A F 細川] y Ha b i t T悶 A A BA I V I NPRF V i n e /W o o d yc l i m b e r A RF NPRF 3 2 . 0 6 6 . 6 7 0 . 16 1 3 . 5 - l l • 3 . 0 90 . 5 . 0 8 3 1 .3 0 . 7 3 . 9 0 . 0 1 2 . 2 1 . 0 3 1 . 7 5 . 3 1 . 0 3 1 .7 5 . 3 . 6 0 . 0 2 2 . 2 8 5 2 . 2 2 0 . 0 2 3. 710 . 4 4 1 . 12 7 7. 7 2 6 3 . 9 7 7 . 7 81 9 0 . 7 21 .3 1 5 8 . 0 3 . 15 6 3. 4 5 . 15 0 . 14 5 . 0 1 l • 1 1 .1 1 0 . 0 1 2 . 4 . 0 3 2 1 1 . 11 0 . 7 同 . 0 1 1 . 0 30 4 5 U F・者包囲 3 2 . 0 . 6 4 2 3 . 3 3 0 . 0 4 2 . 6 3 . 0 4 4 2 . 0 60 . 5 2 1 .3 5 3 . 3 0AM 内 ,--nHvnHV u w伺 a a .,n ' ' 勾 , , 8 . 2 5 1 5 . 9 3 . 6 31 ••.. 6 0 . 8 2 守' 1 A 1 5 5 5 . 5 64 . 2 9 A 側. 3 56 . 0 5 3 ・ A 弓d w u,・ ω ω L1 川刑 川訓 0 . 7 。 1 日411 3 . 0 90 . 0 6 3 . 9 1 1 . 11 0 . 0 1 2 . 4 0 . 4 3 . 0 6 7 8 3 .5 11 . 4 4 6 . 6 3. 33 0 宮口・開 Z﹀玄玄巴F 同協同開﹀ZU関 口 3au 守 内,,“内4J ••• 1 1 1 1 d . 0 6 5 . 15 0 . 0 2 2 . 0 60 3 . ω 0.03 4 ・' 弓 1 o 1 . 0 30 . 0 1 1 . 1 1 1 .3 40 . 15 7 . 6 ‘ 勾 4 8 BA I V I S e e d l i n g s 。。勾 To 凶: 9 7 , F﹂ FLPU G r a m i n e a e E u p h o r b i a c e a e A n n o n a c e a e A n n o n a c e a e P o r t u l a c a ω a e L e g u m i n o 蜘, P a p i l i o n o i d e a e A r a c e a e R u b i a c e a e S a p i n d a 悶 E L e g u m i n o s a e , C a e s a l p i n i o i d e a e G r a n 由e a e D i p 胞r o c a r p a c e a e M a l v a c e a e Le伊凶n o s 飽,白e s 叫. p i n i o 泌総 A n a c a r d i 脱却 S t e m o n a c e a e A s c l e p i a d a c e a e L o g a n i a c e a e E u p h o r b i a c e a e L e gum 泊o s 鶴, P a p i l i o n o i d e a e Comb 児 観 閲a e Le伊凶n o s a e, P a p i l i o n o i d e a e G百凶E伺 E A n n o n a c e a e G r a m i n e a e , B a m b u s o i d e a e 伽c u l i a c 伺B S A p o c y n a c e a e Le g u m i n o s a e , M i m o s o i d e a e Rh a m n 前e a e Rhamn a c e a e Rh a m n a c e a e L e g u m i n o s a e, P a p i l i o n o i d e a e HTTTHTVTTTHTSTTVHTTHTHHWHSTTWWWH P e r o t i si n d i c aι)O.K. P h y l l a n t h u se m b / i c aL . P o l y a l t h i ac e r a s o i d e s( R o x b . )B曲.e xB e d d . P o l y a l t h i ae v e c 旬(Pi e r r e )F i n .& G a g n e p . P o r ωl a c ap i l o s aL . P t e r o c a r p u sm a c r o c a r p u sK u r z . R h a p i d o p h o r ap e e p l a( R o x b . )S c h o t t R o t 肋 ,ωn n i aw i t t i i( C r a i b . )B r e m . S c h l e i c h e r ao l e o s a( L o u r . )O k e n S e n n ag a r r e t t i a n a( C r a i b ) S e t a r i ap a r v i f l o r a( p o i r . )K e r g . S h o r e as i a m e n s i sM i q .v a r .s i 鵬 n s i s S i d ac o r d i f o / i aL . S i n d a r as i a m e n s i sT e y s m .e xM i q .v a r .s i a m e n s i s S p o n d i a sp i n n a t a( L .f . )K u r z S t e m o n am e r i c a nL o u r .v a r .t u b e r o s a S t r e p t o c a u l o nj u v e n t a s仏o u r . )M巴町. S t r y c h n o sn u x v o m i c aL . S u r e g a d am u l t i f l o r a( A .J u s s . )B a i l . lv a r .m u l t i f l o r a T e p h r o s i ak e r r i iD r u m .&C ぬi b T e r m i n a l i am u c r o n a t aC凶 b&H u t c h . U r a r i ac a m p a n u l a t a(W a l l .e xB曲 . )G a g n e p . U r o c h l o ap a n i c o i d e sP .B関 u v .v 訂'. p a n i c o i d e s U v a r i ar u f aB. l V i e t n a 脚 ' s a s ac i l i a t a( A .Cam u s )T .Q .N g u y e n W a l t h e r i am e r i c a n aL . Wr 句h t i aa r b o r e a(Den n . )M a b b . X y l i a砂 l o c a r p a( R o x b . )T a u b .v a r .k e r r i i( C r a i b&H u t c h )N i e l s . Z i z y p h u sc a m b o d i a n aP i e r r e Z i z y p h u sn u m m u l a r i a( B u r m .F . )W i g h t&Am. Z i z y p h u so e n o p l i aM i l . lv a r .o e n o p / i a Z o r n i ag 幼b o s aS p 釦. S a p l i n g s S NUO S p e c i e s 84 2. 3 15 . 3 1 5 . 3 COMPOS ITION AND STRUCTURE OF A COMMUN ITY-MANAGED DECIDUOUS FOREST 251 Table 2. Diversity indices for trees and saplings of Khok Bung Preu forest in northeast Thailand. Trees dbh 10 em and saplings dbh 2.5 to 9.9 em. N 0 is absolute richness. R 1 (MARGALEF, 1958) and R2 (MENHINICK, 1964) are the two species richness indices. Simpson' s A (S IMPSON, 1949) and Shannon's H' (SHANNON & WEA YER, 1949) are the two species diversity indices. N 1 and N2 represent the number of dominant and very dominant species (HILL, 1973) in the forest. Pielou 's J or E 1 (PIELOU , 1975; 1977) and E 5 (HILL, 1973) are species evenness indices. Diversity Richness Evenness Life forms Area sampled (ha) No Rl R2 A H' Nl N2 Tree 0.97 39 6.43 2.03 0.12 2.81 14.37 8.06 Sapling 0.09 31 6.07 2.62 0.09 2.67 16.05 El Es 0.73 0.53 10.72 0.82 0.62 40 en Q) "(3 Q) 0.. (J) 30 '+- 0 0 z 20 -+-Trees Saplings -o- ""0 Q) ....... (.) Q) 10 0.. X w 0 0 50 100 150 200 250 300 Sample Size Figure 5. Rarefaction curves of trees and saplings of Khok Bung Preu fores t in Northeast Thailand show ing the expected number of spec ies from a certain number of nmdomly selected individuals. Trees and saplings in Khok Bung Preu forest were similar in species diversity (Simpson A= 0.12 for trees and 0.09 for saplings, Shannon H' = 2.81 for trees and 2.67 for saplings), evenness (Pielou J' or E 1 = 0.73 for trees and 0.82 for saplings, Hill's E 5 = 0.53 for trees and 0.62 for saplings (Table 2), and in rarefraction (Fig. 5). 252 MD.ENAMMULKABIR刷 DEDWARDL .WEBB Abundance , Dominance , andS i z e 'C l a s s e s 百l emeanp l o tabundan 印 a ndba 叫 釘' e av a l u e sf o ra l ls t e m s2 . 5cmdbhwere1 9 3 6 s t e mh a -Iand1 0 . 3 4m2h a -I,r e s p 即 t i v e l y .百l emeanp l o t回 ea b u n d a n c ewas380s t e m s h a -I釦 db 出 a l紅 e ao f6 . 0 5m2ha- I • F o rs a p l i n g s ,a b u n d a n c ew儲 1 5 5 6s 飽 msh a -Iandb a s a l 紅e a4 . 2 9m2h a -I( T a b l e1 ) .A p p r o x i m a t e l y75%o ft h et r e e swerel e s st h a n1 5cmdbhw i t h o n l y1%o f紅 白 s>30cmd b h .S加 i l a r l y, 64%o fa l lt r e e swere<1 0m h e i g h t , w i t ho n l y 1%o ft h e住' e e s>1 5m h e i g h t佃 dt h er e s t( 3 5 % )b e t w e e n1 0and1 5m h e i g h t( T a b l e3 ) . V i e t n a m o s a s ac i l i a t awast h emostcommonh e r b a c e o u ss p e c i e s加 t h ef o r e s tf o l l o w e d byH e l i c t e r e sl a n a t aandMurdannias p e c t a b i l i s . 官l eme 佃 a b u n d a n c ef o rv i n e sand woodyc l i m b e r swas6 1i n d i v i d u a l sha- I • Z i z y p h u sc a m b o d i a n awas血emostcommon s p e c i e s創 nongv i n e sandwoodyc l i m b e r sf o l l o w e dbyU v a r i ar~向 (Table 1 ) . C o m p a r a b l eq u a n t i t a t i v ev e g e t a t i o ns t u d i e so fd e c i d u o u sf o r e s t si nTh a i l a n di n c l u d e community-managedf o r e s t s (KIJTEWACHAKULETAL.,2 0 0 4 ) andp r o t e c t e df o r e s t s (BUNYAVEJC 田 W別, 1 9 9 9 ;MARODETAL.,1 9 9 9 ;BUNYAVEJCHEW 別 町A L., 2 0 0 1 ;VANDE BULT&G 即 日M ANs,2006;VVEBB,S l 吉郎脇田'Z, VAND EBULT,SEUATURIEN,&CHUTlPONG, u n p u b l i s h e dd a t a ) .Kh okBeungP r e ue x h i b i t e ds p e c i e sr i c h n e s sf o ra l ls t e m ss i m i l 紅白 commu 凶t y m a n a g e df o r e s t s( b o 白 o fw h i c hhadh i s t o r i c a ld i s t u r b a n c e s )andad i s t u r b e d w a t e r s h e dp l o t(Y ARWUD 凹 ETA L., 1 9 9 6 ),b u tl o w e rr i c h n e s sv a l u e sf o rt r l 閃 s 5cmdbh 出a np r o t e c t e df o r e s t sw i t hl i 岱l eo rnor e c e n th i s t o r yo fm a j o rd i s t u r b a n c eo t h e r白a nf i r e . I nc o n t r a s t ,stemabundancev a l u e sf o rKh okBungP r e uw e r ea tt h eh i g hendo ft h e s p e c 回 m, b e i n gmuchh i g h e r白. a nt h eo t h e rcommunity ・m anagedf o r e s tandsomep r o t e c t e d f o r e s t s .B a s a la r e av a l u e sf o rKh okBungP r e u , ont h eo t h e rhand , showedt h esamep a t t e m a ss p e c i e sr i c h n e s s :s i m i l a rt ocommunity-managedf o r e s t sandw e l lbelowp r o t e c t e df o r e s t v a l u e s .P a r t i c u l a r l yn o t a b l ei st h eb a s a la r e ao f紅 白s1 0cmdbh ,whichw部 a b o u to n e 出i r d白紙 o ft y p i c a lp r o t e c t e dd e c i d u o u sf o r e s to fTh a i l a n d( T a b l e4 ) .Takent o g e 血e r ,出e b i o p h y s i c a lp紅 a m e t e r so fKh okBungP r e ui n d i c a t e白 紙 出. ep r o l o n g e dh i s t o r yo fhumani n d u c e dd i s t u r b a n c eh a sr e s u l t e di nad e g r a d e df o r e s tw i t hr e d u c e ds p e c i e sd i v e r s i t yand v i r t u a l l yno1 紅g et r e e s . Howevert h ef o r e s ta p p e 釘 st oc o n t a i ns u b s t a n t i a ll e v e l so f r e g e n e r a t i o ni n d i c a t i n gap o t e n t i a lf o rs t r u c t u r a lr e c o v e r y . T a b l e3 .H e i g h tanddbhc l a s sf o rt r e e so fKh okBungP r e uf o r e s ti nN o r t h e a s tTh a i l a n d . At o t a lo f369i n d i v i d u a l so f町 田 s( 1 0cmd b h )r e c o r d e d合om0 . 9 7ha紅 ' e a s a m p l e d .P e r c e n to ft h et o t a lnumbero fi n d i v i d u a l so f佐 田si si np a r e n t h e s i s . 。 < H e i g h t( m ) 5 1 0<1 1 5<2 5 F r e q u e n c y F r e q u e n c y F r e q u e n c y 1 5 1 5<30 30<45 45 2 0 1 34 1 74 52 2 5 T o t a l 236( 6 4 ) 1 2 8( 3 5 ) dbh( c m ) 。 < 1 0 。 。 。 。 。 5( 1 ) T o t a l F r e q u e n c y 275( 7 5 ) 9 1( 2 4 ) 3( 1 ) 0(0) 369 T a b l e4 .C o m p o s i t i o n a la n ds t r u c t u r a lcomp 釘i s o no fKh okBungP r e ucommunityf o r e s tw i t ho t h e rs i m i l a rf o r e s t si n τ b a i l a n d . 一 m5 5 一釦 P r o t e c t e d釘 切 0 . 2 3 3 3 6 4 2 2 . 2 8 d eB u 1 t&G r e i j m 畑 s , 2 0 0 6 D e c i d u o u sh a r d w ∞d 出b a m b o o w i P r o t e c t e da r e a 0 . 2 6 4 5 3 4 1 6. 7 7 1 0 3 3 3 9 1 4 4 9 . 2 7 ( 1 ) 3 3 3 5 6 6 4 3 6 1 7 1 1 5 9 2 2 7 i 1 l 7 . 5 2 9 . 0 8 ( 1 ) 1 4 . 5 5 ( 1 ) . 4 5 ( 2 1 3 0 3 ( 1 1 6 8 ) 1 3 5 6 ( 3 ) 1 1 1 5 ( 3 ) 1 4 9 9 ( 3 ) 1 同 2 9. 2 9 . 8 ( 3 ) 2 9 . 4 ( 3 ) 2 8 . 9 ( 3 ) 9 4 4 . 0 9 3 1 7 1 1 7 . 2 4 . 0 7 6 2 0 4 17 1 7. 4 . 0 3 6 2 5 4 1 . 7 6 針。旬c t e d釘 e a , 4 . 0 8 6 7 3 6 0 1 3 4 3 2 1 .6 2 0 . 6 a n n u a lf i r e s 針。t e c t e da r e a , o c c a s i o n a lf r r e s 1 .0 7 8 5 3 。 判 2 2 0 1 8 . 5 1 7 . 9 知o t e c 飴df o r e s t w a t e r s h e dr e s e a r c hs t a t i o n D i s 加r b e df o r e s tw a t e r s h e d r e s e a r c hs t a t i o n M i x e dd e c i d u o u s a n dg r a s s l a n d M i x e de v e r : 伊 e np l u s d e c i d u o u s 川川川 D e c i d u o u s げ 0 . 0 2 、 , De c i d u o u s 羽 1 6 1 3 ( n n 町 、 , nnη nvvnfnHV HL A d , 、'huuH"H au 引U S 蹴 o n a l防 yE v e ゅ' e e n P r o t 印刷 1 . 0 e n v 加I n m e n 阻l r e 鶴 田: hs t a 幅削(4) 1 . 0 1 . 0 1 . 0 M i x e dD e ci d u o u s P r o t e c t e dw a t e r 百h e d r e s e 釘c hs t a t i o n , 匂 , S t e i n m e t z , v 組 W e b b d eB u l t , S e u a t u r i e n 飽 & α I U t i p o n gu n p u b l i s h e dd a 5 0 . 0 1 0 . 3 4 知 ηβ一附 Y a r w u d h ie ta l ., 1 9 9 6 v 引 aaea--a M卸 ' o de ta l .,1 9 9 9 防 yE v e r g r e e n mmm 一h 白 C C一 加 一 w-w m 一m ・ 叫一叫 nn-nD G i i U i s o n佃 dL i s w a n t i,1 9 9 9 M i x e dD r yD e c i d u o u s 川畑白川同一.凶 ∞ m 醐蜘蜘一蹴 向- deB 叫t &G r e i j m a n s , 2 0 0 6 D e c i d u o u sD i p 也r o c 紅p 伽伽附・凹・剛一蹴 m ) 0 . 9 7( 1 0c 0 . 0 9( 2 . 5 9 . 9c m ) m ) 0 . 0 1( 2 . 5c c l u d e sb a m b ∞; ω 1 . 0cmd b h ;問 >4 . 5cmd b h ;拘 R e s u l t s間 関p e a t e dme 制 r e sf r o m出es 叩 e .p l o to v e rs e v e r a ly e a r s . 明m 。。宮司。∞司同OZ﹀ZU2HNC角c 川﹃ m開。司﹀のO冨冨CZコ︿・冨﹀Z﹀。問。。関門川Bc。C臼o 同 盟 aMU一凶 側 Mm 飴 J出 。 一 2 . 5cm C o m m u n i t y 応i j t e w a c h 紘u 1e ta , . l2 4 (1)加 nn 1 9 3 6 m o 2 . 5cm 3 9 一 1 0cm 4 7 m 5cm 附 m 一一切 V飢 V釦 D e c i d u o u s 胞d i v e r s i t y A b s o 1 u 伽 T h i ss t u d y M a n a g e m e n t A r e as a m p l ω( h a ) m F o r e s tt y p e A S 制d y 254 Mo.ENAMM札 K A B I RANOEOWA即 L .WEBB DISCUSSION Kh'O kBungP r euF'Or e s th a sal ' O ngh i s t ' O r y'Ofl ' O g g i n g, f r r e ,andgrazing.Selective ' O g g i n gandr e p e a t e df i r e si nt h ed e c i d u'Ou sf ' O r e s th a sr e s u l t e di nr e d u c e dd i v e r s i t y ,l ' Ow er l d e n s i t y,anda l t e r e ds 加 C 伽r ec h a r a c t e r i z e dbyl ' O wera v e r a g et r e eh e i g h t sandd i a m e t e r s . h e rs t u d i e s(STOTIEIAL.,1 9 9 0 ;UHL& KAUFFMAN , S i m i l a rr e s u l t shavebeens e e ni n'Ot 1 9 9 0 ;MAXWELL ,1996;MILLER& KAu開 MAN,1998;BUNYAVEJCHEW町 EIAL.,2001; RAMIREz-MARCIALEIAL., 2 0 0 1 ) .A l t h ' O ughwec 創 m' O tc ' O n f i d e n t l ys t a t ewhatt h e‘'Or i g i n a l ' s p e c i e sc ' O mp'Os i t i ' O n'Oft h ef ' O r e s twas, wea r ec ' O n f i d e n t白紙 l ' O g g i n gh a sh e a v i l yi m p a c t e d u l a t i ' O n s'OfS h o r e as i a m e n s i s , whichi nd e c i d u ' O u sf ' O r e s t'Of t e nC ' O ・ ' O c c u r sw i t hQ u e r c u s t h ep'Op s p e c i e s (MAXWELL & ELLIOπ,2 0 0 1 ; Webb,S t e i n m e t z,vandeB u l t ,S e u a t u r i e n,& C h u t i p ' O ng ,unpublishedd a t a ;J .F .Maxwell ,pers'On a lc ' O mmunicati'On ) . Repeatedd i s t u r b a n c e ss u c ha sf r r emayf a v ' O r問 g e n e r a t i ' O nbys p e c i e s出a tg r ' O wb e s t ' O n d i t i ' O n s,s u c ha slegumes(BRAK 聞HlE LM& L町 , 1 9 9 8 ) .I n deed ,b'Ot ht h e i nd e g r a d e dc 紅白 a nds a p l i n gc ' O mmunitieswered'Om i n a t e dbys e v e r a ls p e c i e s'Ofl e g u m e s .Ourr e s u l t s ' O fr e l a t i v e l yh i g hs a p l i n gabundance, s m a l l位' e eh e i g h tanddbhc l a s sd i s 釘i b u t i ' O n( T a b l e3 ), l ' O wb a s a la r e a , andd'Om i n a t i'Onbylegumes, s u g g e s t s白a tKh'OkBungP r euf ' O r e s ti sh e a v i l y ' O mi t s'Or i g i n a ls t a t ea f t e rc ' O n t i n u e dl ' O g g i n g,f r r i n g,andg r a z 泊g . d e g r a d e df r D e s p i t e白 er e l a t i v e l yp'O'Orp h y s i c a lc ' O n d i t i ' O n'Oft h ef ' O r e s tandi t si s ' Ol a t i ' O n,i ti ss t i l l ' O r t a n tr e p ' O s i t ' O r y'Ofb i ' O d i v e r s i t yandc ' O n甘i b u t e st ' Os p e c i e sc ' O n s e r v a t i ' O nandl i v e l i h ' O od animp s u p p l e m e n t a t i ' O nf ' O rl ' O c a lv i l l a g e r s .F'Or e s tf r a g m e n t s'Of t e nc ' O n t a i nr a r es p e c i e ss u b j e c tt ' O l ' Oc a le x t i 甲a t i ' O n(THEBAUD& S百 ASBERO ,1997)a swef ' O undi nt h ec a s e'OfKh'OkBung P r euf ' O r e s t .Ofp釘 t i c u l a ri n t e r e s ti sV i e t n a m o s a s ac i l i a t a,abamb'O'O speciesb即'Oming unc'Om m ' O n泊 f ' O r e s t s'OfTh a i l a n db e c a u s ei ti sg e n e r a l l y'On l yf ' O und'Ons ' Oi lt h a th a sn'Ot beent i l l e d( J .F .Maxwell ,p e r s'On a lc ' O mmunicati ' O n ) .L i v e l i h ' O ' Od' O ft h el ' O c a lc ' O mmunity ' O ught h es u s t a i n a b l eh a r v e s t'Ofn'On t i m b e rp r ' O d u c t s,p紅 t i c u l a r l y wass u p p l e m e n t e dt h r ' O ' O m, p h a kwan,wild仕u i t s, anda n te g g sf r ' O mt h ef ' O r e s t . mushr Kh'O kBungP r euf a c e ss e v e r a lc h a l l e n g e st ' Ol ' O n g t e r mr e g e n e r a t i ' O n .L'Og g i n g'Of1 紅' g e t r e e si nt h ep出 thads e v e r e l yr e d u c e dt h eabundance'Ofs e e d b e a r i n gm'Ot h e r甘' e e s,which ' O r a t et h eg e n e t i cq u a l i t y'Oft h ep r ' O p a g u l e s(CORL 町 T& T URNER ,1 9 9 7 ) .R e p e a t e d mayd e t e r i h ef ' O r e s tf l'O'Orwhichl e a d st ' Od r yandnu 凶e n t p ' O ' O rs ' Oi l f r r e sr e d u c ea c c u m u l a t e dl i t t e r'Ont (ZHUANO, 1 9 9 7 ;RAMIREZ-MARCIALEIAL., 2 0 0 1 ) .F i r e s , g r 沼 恒g , and佐' a m p l 泊 gb yl i v e s t ' O ck e p r e s s e ss e e dg e r m i n a t i ' O n,andc h a n g e ss ' O i lm'Oi s t u r eandt e m p e r a t u r e, k i l l ss e e d l i n g s,d . p'Ot e n t i a l l ya l t e r i n gl ' O n g t e r ms p e c i e sc ' O mp'Os i t i ' O n ands 加 c t u r e(GUINDON ,1996). I n a d d i t i'On,t h ef ' O r e s ti sah i g h l yi s'Ol a t e df r a g m e n tS ' Ot h e r ei sv e r yl i t t l es c'Opef ' O rs e e d d i s p e r s a l合oml a r g e rf ' O r e s ta r e 儲 ( Gu 町 DON ,1996;THEBAUD& SτRASBERG,1997;VIANA EIA L .,1 9 9 7 ;LEMENIH& TEKETAY ,2 0 0 5 ) .官lUS ,p'O'Orm佃 agement'OfKh'OkBungP r eu ' O u l dl e a dt ' Ol ' O c a le x t i 中a t i ' O n'Org e n e t i cd e t e r i ' O r a t i ' O n'Ofr 紅 es p e c i e s, ands p a t i a li s'Ol a t i'On c ' O wsl i t t l echance'Ofg e n e t i c'Ou t c r ' O s s i n gt h r ' O ughp'Ol l i n a t i ' O n'Ord i s p e r s a l . a l l I ti simp ' O r t 組 t t ' Oc ' O n s i d e rt h er ' Ol e'Oft h el ' O c a lv i l l a g ec ' O mmu 凶t y泊 f ' O r e s tp r o t e c t i ' O n, management ,andc'On s e r v a t i ' O n .百 l ev i l l a g e ss u r r ' O u n d i n gKh'OkBungP r euf ' O r e s tt ' O ' O k出e i n i t i a t i v et ' Op r ' O t e c tt h ef ' O r e s tfromf u r t h e re n c r ' Oa chment , e s t a b l i s hmanagementr u l e s, and ' O r c et h e m .I ti sn'Ow w i d e l yackn ' Ow ledgedbys ' O c i a ls c i e n t i s t st h a tc ' O l l e c t i v ea c t i ' O nand e n f ' O c a l l y i n i t i a t e df ' O r e s tc ' O n s e r v a t i ' O ncanl e a dt ' Os u c c e s s f u lf ' O r e s tc ' O n s e r v a t i ' O n'Ou t c'Omes l 9 9 0 ;BALAND& PLATTEAU,1 9 9 6 ;Ao 臥 WAL ,1 9 9 9 ;BANANA& Go MBYA(OSTROM,1 r w E , 2000;JOHNSON&FORSYTH,2002;RJ 汀E WACHAKULEIAL., 2 0 0 4 ;WEBB& SSEMBAJ ,2007),andb'Ot ht h ee x i s t e n c e'Oft h ef ' O r e s tandt h es p e c i e sd i v e r s i t y'OfKh'Ok SmVAKOTI COMPOSITIONANDSTRUCTUREOFACOMMUNπY-MANAGEDDECIDUOUSFOREST 255 eudem ' O n s t r a t et h i s .W e l l d e f i n e dp r ' O t e c t i ' O nandmanagementr u l e sa p p e a r e dt obe BungPr s u c c e s s f u li np r o t e c t 泊 gt h ef o r e s tf r ' O mc o m p l e t ed e g r a d a t i ' O nandl o s s .I na d d i t i o n , p r o v i s i o n andi m p l e m e n t a t i o no fg r a d u a t e ds a n c t i o n supont h ev i o l a t i o no fe x i s t i n gr u l e si nu s ea l s o 紅e dt ' Ob ee f f e c t i v et o o l sf o rf ' O r e s tc o n s e r v a t i o n .S e l f i n i t i a t e dp r o t e c t i o n, g i v e nr i g h t s a p p e t ou s e,ands 住o ngcommunityl e a d e r s h i pc ' O n t r i b u t e dt ot h es a f e g u a r d i n go fKhokBung P r euf o r e s t . t h o u g hp r o t e c t e df o r e s t sa r eu s u a l l ymoree f f e c t i v er e p o s i t o r i e s'Ofp l a n td i v e r s i t y Al t h 阻 f o r e s t su n d e rmanagementf o re x t r a c t i v eu s e(BRUNERETAL., 2 0 0 1 ;SALAFSKYETAL., 2 0 0 1 ), community-managedf ' O r e s ti sav i t a lr e p o s i t o r yo fb i o d i v e r s i t yv a l u e sa l ' O n g s i d et h e p r ' O t e c t e da r e as y s t e m .With ' O u tt h e泊 i t i a t i v eo ft h ecommunityl e a d e r s,Kh'OkBungP r e u 抑 制e dt oa g r i c u l t u r ei n白 1 9 7 0 s .R e s u l t i n gfromt h ec ' O mmunity f o r e s twouldh a v eb e e nc o e f f o r ti saf o r e s tt h a ts t i l lc o n t a i n saf a i r l yd i v e r s ef l o r awi 由加 a pp 訂e n t l yr e g e n e r a 出1 9 ' O mmunity紺 u c t u r e .Thi ss h o u l db ec o n s i d e r e dan e a r t e r mc o m m u n i t y b a s e dc o n s e r v a t i ' O n c s u c c e s s, e v e nt h o u g ht h el e v e lo fd i v e r s i t yanddominancewase s t i m a t e dl ' Ow c omparedt o o t h e rf o r e s t s泊Th a i l a n du n d e rm'Or ec o m p l e t ep r o t e c t i o n . t h o u g hi n d e e di n血i sc a s es t u d y C a r emustbet a k e nwheni n t e r p r e t i n go u rr e s u l t s .Al t h ecommunitymanagementd i dr e s u l ti nt h er e t e n t i o no ff o r e s tc o v e r ,t h ef u t u r e佐' a j e c t o r y ,出i ss i n g l ec a s es t u d yi s o fb i o d i v e r s i t yands t r u c t u r a lv a r i a b l e si sn o tknown.Moreover n o tn e c e s s 紅i l yr e p r e s e n t a t i v eo fa l lc ' O mmunityf o r e s t si nTha i l a n d .A c c u m u l a t i o no f l ' O n g i 伽d i n a lc a s es t u d i e sw i l lb er e q u i r 芭db e f o r ewemayg e n e r a l i z er e s u l t sl i k eo u r s . r e a t l yi nb i o d i v e r s i t y, i n t e n s i t yo fu s e, and甘' e n d so v e rt i m e . Communityf o r e s t smayv紅 yg m p a c t so fcommunitym佃 agementon S i g n i f i c a n t l ymorer e s e a r c hi sr e q u i r e don出 ei f o r e s tc o n d i t i o ni n百 l a i l a n d ,andi nA s i a . RECOMMENDEDACτ10NS Al t h ' O ught h e'Ov e r a l lr e s u l t ss u g g e s t白 紙 K hokBungP r e uf o r e s ts t i l lr e t a i n senough 訂 tt os e c o n d a r ys u c c e s s i o n,i ti ss t i l ld i f f i c u l tt o s t r u c t u r a lc o m p l e x i t yt og i v eagoods t e s t i r n a t eh'Ow l o n gi tw i l lt a k et ' Or e c o v e rt o‘ m a t u r e 'c o n d i t i o n s .Givent h ec h a l l e n g e st o ,a c t i o ns h o u l dbet a k e nt oa s s i s ti nt h er e s t o r a t i ' O n l o n g t e r mr e g e n e r a t i o nd i s c u s s e da b o v e e u .Werecommendtwoi n v e s t m e n t st h a ts h o u l di n c r e a s et h ep r o b a b i l i t y o fK honBungPr o fl o n g t e r mf o r e s tr e s t o r a t i o n . F i r s t ,f o r e s tr e g e n e r a t i o nn e e d st ob ef a c i l i t a t e d .R e s t o r a t i o no fb i o d i v e r s i t yimpr ' O v e s 9 9 7 ;ZHUANG,1 9 9 7 ; w i t hmanuale n r i c h m e n to fn a t i v ep l a n ts p e c i e s(PARROTTAETAL.,1 BLAKESLEYETAL., 2 0 0 2 )a n dh a sb e e nt h ef o c u s'Ofl o n g t e r me f f o r t si nNorthem百 a i l a n d (FORESTREs TORATIONRESEARCHUNπ, 2 0 0 0 ) .W e l l p 加 mede n r i c h m e n tp l a n t i n go fn a t i v e u 1 dr e d u c ef i r eh a z a r d s,i m p r o v es o i lc o n d i t i o n s,a t t r a c ts e e dd i s p e r s a la g e n t s s p e c i e swo 訂t i c u l a r l yb i r d s )叩 dc r e a t em i c r o e n v i r o n m e n t sf a v o r a b l ef o rt h en a t u r a le s t a b l i s h m e n t ( p o fn a t i v ef o r e s ts p e c i e s(Co 乱 Eπ&Tu RNER ,1 9 9 7 ;JOSEPH& WUNDE 乱 E ,1 9 9 7 ;LAMB ETAL.,1 9 9 7 ;BRAKENHIELM& LIU,1 9 9 8 ;B A ' 甘 A GLIAETAL.,2 0 0 4 ) .Werecommend23 n a t i v ef o r e s ts p e c i e ss u i t a b l ef o re n r i c h m e n tp l a n 血 gi nKhokBungP r e uf o r e s t , b a s e don t h e i rp r e s e n c e泊 t h ef o r e s t, l e a f i n gp h e n o l o g y, andp o t e n t i a lt oc o n t r i b u t et ot h ei m m e d i a t e andl o n g t e r mmechanisms'Off o r e s tr e s t ' O r a t i o n( T a b l e5 ) .E n r i c h m e n tp l 佃 t i n gwould r e q u i r eam a j o rhumanr e s o u r c ei n v e s t m e n tbyt h ec o m m u n i t i e sa sw e l l出 g e n e r o u st e c h n i c a l b a c k s t o p p 泊 ga ndd i s 住i b u t i o no fa p p r o p r i a t es e e d l i n g sbyt h eRoyalF o r e s tD e p a r t m e n t , b u t c o u l dpo 飽n t i a l l yhaves i g n i f i c a n tandp o s i t i v ei m p a c tonf o r e s tc o n d i t i ' O n s . , , 町e s e n t D e c i d u o u s D e c i d u o u s P r e s e n t D e c i d u o u s P r e s e n t N o tp r e s e n t D e c i d u o u s R曹関口t D e c i d u o u s E v e r g r e e n ρ e c i d u o u s N o tp r e 回n t E v e r g r e e n ρ e c i d u o u s N e n t o t開 s D e c i d u o u s P r e s e n t D e c i d u o u s r e s e n t N o tP 聞 l E v e r g r N o tp r e s e n t 針路e n t D e c i d u o u s p r e 回目t D e c i d u o u s N o t開 糊t E v e r g r e e n D e c i d u o ω N o tp r e s e n t 回目t p r e D e c i d u o u s 日 芭s e n t D e c i d u o u s D e c i d u o u s N o tp r e s e n t R凶 e n t D e c i d u o u s 日宮田: n t D e c i d u o 凶 関節目I N o t p E v e r g r e e n D e c i d u o 凶 P r e s e n t 毘羽目t N o t p D e c i d u o u s 毘s e n t N o t p D e c i d u o u s E C a n o p y伽 e ,f a s tg r o w i n g,p r o v i d e ss h a d e ,l e a v e su s e d ω f o d d e r , m e d i c i n a l, e d i b l ef n 雌 f o r佃加a l s . F o d d e r 蜘C 出gf l o w e r s, c a n o p y B凶・a l o w e r s , f i r er e s i l i e n t B凶 御 鉱 山gf 国i b l ef r u i t sf o rb o 由h u m a na n d組 i m a l s C a n o p yt r e e , p r o v i d e ss h a d e , ∞mmon恒 d i s t u r b e da r e 俗 研o v i d e ss h 耐, o f t e ni ns 削 抽r y g r o 耐1 C a n o p y悦 e , p r o v i d e ss h a d e , t i m b e rt r e e r e e , r e g e s i 悶 総s i no p e na r e a s, b i r d a 蜘 c 伽g If l o w e r s C a n o p yt r e e,加i t se d i b l e U n d e rs t o r yt 白m m o ni ns e c o n 伽r y g r o 叫1 , 側y p r o p a g a t i o n 拘 置t g r o w i n g , 捌o p y蜘, p r o v i d e ss h a d e C a n o p yt r e e , p r o v i d 凶 s h a d e , e d i b l ef r u i 包 O f t e np l a n 叫泊d r i e ra n ds e c o n d a r yf o r e s t U n d e r s t o r yt r e e , e d i b l ef r u i 随 白 ,m m o ni nu n d e rs t o r yo fd i s t u r b e df o r e s ,t b a t p o l l i 凶. e d, 白m m o ni n蹴 0油 r yg r o w 曲 ,b a tp o l l i n a t e d ,f r u i te d i b l e 臼n o p y臨, p r o v i d e ss h a d e ,o f t e np l 初制,自n b e r臨 国i b l ef r u i t s , p r o v i 伽 s h a d e , m叫 c i n a l ぉt g r o w i n g ,o f t e np l a n t e d ,u n d e r s 伽 Yt r e e ,e d i b l el e a v e s F F l o w e r , f r u i 箇組dl e a v e s眠 e d i b l ef o r加血組加a l sa n dh u m 叩S C o m m o n加 d i s t u r b e df o r e s t , p r o v i d e ss h a d e , m e d i c i n a l C a n o p y悦 e 4︿開回目 ι 也K B P EF 関協同﹀ZU開口当﹀同U F・ , C 町四n ts t a 同S N o t e s 窓口・開予冨 A l b i z i a0ゐ' r a t i s s i l 脚仏.f . )B 血 L e g u m i n o s a e , M i m o s o i d 蹴 , z A仰 r i c h t ai n d i c aA .J u s s . M e l i a c e a e B o m b a xa n c e p sP i e r r ev a r .a n c e p s B o m b 抑 制E B u t e a脚 ' n o s p e r m a( L I 此)T a u b . L e ; 伊 凶n ω a e , P a p 迎 。n o i d ,悶 C a n a r i 肌 , s u b u l a t 脚 G u i l l . B u r s e r a c e a e D a l b e r g i ac o c h i n c h i n e n s i sP i e r r ee xU I l I e s L e g u m i n o s a e , P a p 出o n o i d 蹴 D i l l e n i ao v a ωW a I l . D i l l 個 師a e D i ,ω r p y r o s脚 U i sG r i f f . E b e n a c 蹴 E r y t h r i n a抑制aR o x b . Le伊国n o s a e , P a p i l i o n o i d e a e F i c u sh i 平i , d aL .. fv 鉱 h i s p i d a M o r a c e a e G m e l i n aa r b o r e aR o x b . V e r b e n a c e a e H y m e n o d i ,c砂 ' o no r i x e n s e( R o x b . )M a b b . R u b i a c e a e I r v i n g i am a l a y a n aO l i v .e xB e D l 1 . I r v 泊1 9i脱却 L a g e r s t r o e m i aj l o r i b u n d aJ a c kv a r .j l o r i b u n d a L 同即蹴 L i t s e ag l u t i n o s a( L o 町 . )C . B .R o b .v a r .g l u t 仰 ,' s a L a u r a 悶 E M a r k 加 ,m i as t i p u J a t aS e e m .e xK .S c h u m .v 低 s t i p u l a ωBign 叫 蹴a e O r o x y l , 脚 i 叫b 馴 ( L . )K J 四 B i g l l O u i a 白鶴 P t e r o c 仰 山 間c r o c a r p u sK四 U伊凶n o 蹴, P a p 出o n o i d 蜘 S c h l e i c h e r ao l e o s a( L o u r . )O k e n S a p i n d a 瑚 E S e n n as i a m e am k . ) I r w 恒 &B a m . L e g u m i n o s , e aC a 叫p 凶o d 蹴 S p o n d i ω ,p i n n a ωι.f . )K四 A n 制r d i 脱却 S t e r c u l i ap e x aP i e r r e S t e r c u I i l 悶 E T e r m i n a l i ab e l l i r i c a( G a e r t n . )R o x b . C o m b r e 旬α a e L e a f i n gP h e n o l o g y A凶 F a m i l y S p e c i e 唱 M凶 T a b l e5 .N a t i v es p e c i e srecommendedf o re n r i c h m e n tp l a n t i n gi nKh okBungP r e uf o r e s t ,w i t ht h ej u s t i f i c a t i o no ft h es e l e c t i o n . COMPOSITIONANDSTRUCTUREOFA COMMVNITY-MANAGEDDECIDUOUSFOREST 2 57 ,t h e r en e e d st ob es t r i c ti m p l e m e n t a t i o no fo p e r a t i o n a lr u l e s,as t r e n g t h e n i n g Second o fi n s t i t u t i o n sf o rr e g u l a rm o n i t o r i n g , a n di n c r e a s e da u t h o r i t yt oi m p l e m e n ts a n c t i o n sa g a 泊s t v i o l a t o r s .A s t r o n gc o r eo fconcemedl e a d e r sandc i t i z e n si nc o m m u n i t i e sl i k et h o s e okBungP r e ub e n e f i t sfromi n c r e a s e da u t h o r i t y佃 di m p l e m e n t i n gp o w e r . suπoundingKh V e s t e di n t e r e s t泊 t h ef o r e s tandi t sb e n e f i t s,combinedw i t ht h ec a p a c i t yanda u t h o r i t yt o ,shouldimprovet h eo u t c o m e so fmanagementandr e s t o r a t i o nbyt h e p r o t e c tt h ef o r e s t c o m m u n i t i e s .Manyd e g r a d e df o r e s t企a g m e n t sh a v eb e e ns u c c e s s f u l l yr e s t o r e d白 血e住o p i c a l RNER,1 9 9 7 ; r e g i o n sa f t e rg i v e nc e r t a i np r o t e c t i o na g a i n s td i s t u r b a n c e s(CORLETT& Tu ZHUANG,1 9 9 7 ) .I fbo出 f o r e s tr e s t o r a t i o nandv i g i 1 a n tp r o t e c t i o ni si n i t i a t e dp r o m p t l y, Kh okBungPr e uc o u l dbeona 回~ectory t o w a r d ss i g n i f i c a n timprovemento ff o r e s t c o n d i t i o n s . ACKNOWLEDGMENTS h eWorkshopi nP o l i t i c a lT h e o r yandP o l i c yA n a l y s i so ft h eC e n t e rf o rt h e We血ankt n s t i t u t i o n s , P o p u l a t i o n, andE n v i r o n m e n t a lChange , I n d i a n aU n i v e r s i t y , f o rf u n d i n g S t u d yo fI 血et r a i n i n gprogrammeont h eI n t e m a t i o n a lF o r e s 位yR e s o u r c e sandI n s t i t u t i o nR e s e a r c h p r o t o c o lh e l da tt h eA s i a nI n s t i t u t eo fT e c h n o l o g y, Bangkok ,Th a i 1 andi nSeptember2 0 0 3 . h eIFRIt r a i n i n gprogrammec o l l e c t e dt h ed a t auponwhichwep r e p a r e dt h i sm a n u s c r i p t . τ' I n s t r u c t o r sandp紅 白i p a n t si n c l u d e dAm b i k aP .Gautam,J u l i eEngland ,Tran官1IMaiA n , h u t i p o n g, A s t i aDendi, Aru nD h a k a l, NgoT r iDung, S h i r o m a n iGyawali, B h a r a t i W叫 opC J o s h i , Ub o l r a t a n aS u n t o r n r a t a n a , D田 p s h i k h aT a l w a r , τ ' r a nNamTh a n g,百世l a , andY o n a r i z a . 泊o rOstromandK r i s t e rAn d e r s s o np r o v i d e d住a i n i n gm a t e r i a l s .P l a n ti d e n t i f i c a t i o n s組 d E I commentsont h em a n u s c r i p twereg i v e nbyJ .FM a x w e l l .M a r t i nvandeB u l tcon 凶b u t e d 組 t h a b i tc l a s s i f i c a t i o na n ds p e c i e ss e l e c t i o nf o re n r i c h m e n tp l a n t i n gi n s i g n i f i c a n t l yi np l Kh okBungP r e u .A d d i t i o n a lf i e l da s s i s t a n c ewasp r o v i d e dbyNikomA s a k a t iandR a c h e l 回 t i v es u p p o r twasp r o v i d e dbyKh anongSumkhunthod, C o n e j o s .T e c h n i c a landa d m i n i s t h ev i l l a g eheadmano fv i l l a g eBanNonB o a d .百l el a t eM r .TongSumkhunthod組 dMr. YeamS h e p a i s a nn a r r a t e dt ou st h eh i s t o r yo f血ef o r e s t .ChumnanS u n t k h u n t h o dp r o v i d e d g e n e r o u ss u p p o r tw i t hl o d g i n gd u r i n gf i e l dw o r k .G u i d a n c ed u r i n go u rf i e l dworkwas e ecommunityf o r e s tg u a r d s, M r .SommayS a i p a i s a n , Mr.TumSamkhunthod , e n s u r e dby出r otwoanonymousr e v i e w e r sf o rt h e i r andMr.TawinP h u k s u n g n o n .Ours i n c e r e白ankt sm a n u s c r i p t . v a l u a b l ecommentsont h ee a r l yv e r s i o no f出i 258 MD.ENAMMULKABIRANDEDWARDL .WEBB RE 回 RENCES AGRAW 札, A .1 9 9 9 .G r e e n e rP a s t u r e s :P o l i t i c s,M a r k e t s .andCommuni , 砂 amongaM i g r a n tP a s t o r a lP e o p l e . 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