JournalofSoiland WaterConservation Vol.32No.5 Oct., ; I Q *.,/01,,,, 2,! 3, 4,5 ( 3 ;, ) : 5\ _^J _IM L D a V, L.? K $ 9 a

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1 JournalofSoiland WaterConservation Vol.32No.5 Oct., ; *+4@ I Q *.,/01,,,, 2,! 3, 4,5 ( 3 ;, ) : 5\ _^J _IM L D a V, L.? K $ 9 a 9 R V _ I. >V 3 1 MD a \:(1)3 3 (>0.25mm), _` J _ I _ ^, $ 9 X 0 20cm V>5,0.5~0.25mm 20 40cm V 0.25mm ;a 9 X 0 20cm V>5,0.5 ~0.25mm 20 40cm V 1~0.5,0.5~0.25 mm ;R X 0 20cm V 0.25 mm 20 40cm V>5mm 20 40cm _ ` L _ ^ ] a,r V MWD PAD a, ' BissonnaisM L # H,3 _ L (0.4 MWD<0.8) (2)HUC R ]a $,0 20cm R V a : a,20 40cm a a (3)_` L 6 SOC V V_^_`, MWD 6 SOC FAC HUC ]a0, SOC ) :M L,FAC HUC V [`3 #, $ 9 a 9 R L SOC M- #8V ]a_^,_` K_` )* H c!1_` V U)$% -&' : ; ;D a ()*+,:S /0:A -1,: (2018) 犇犗犐 : /j.cnki.stbcxb 犛狅犻犾犃犵犵狉犲犵犪狋犲犛狋犪犫犻犾犻狋狔犪狀犱犆犺犪狉犪犮狋犲狉犻狊狋犻犮狊狅犳犗狉犵犪狀犻犮犆犪狉犫狅狀犆狅犿狆狅狀犲狀狋狊犻狀犜犺狉犲犲犉狅狉犲狊狋狊狅犳狋犺犲犛狅狌狋犺狑犲狊狋犈犱犵犲狅犳犛犻犮犺狌犪狀犅犪狊犻狀 CHENG Huan,GONG Yuanbo,FU Yuxin,LIU Yijun,CHENG Yilun, DONG Hongjun,HU Xu,FANJi,CHE Mingxuan ( 犆狅犾犲犵犲狅犳犉狅狉犲狊狋狉狔犛犻犮犺狌犪狀犃犵狉犻犮狌犾狋狌狉犪犾犝狀犻狏犲狉狊犻狋狔, 犆犺犲狀犵犱狌 ) 犃犫狊狋狉犪犮狋 :Inordertoresearchtheefectofforesttypesonthedistributionpaternofsoilwaterstableaggre gate,itsstability,theorganiccarboncomponentandtheirrelationships,thedistributionpaternofsoilwa terstableaggregate,theaverageaggregatediameter,percentageofaggregatedisruption,macroaggregate proportionandthecontentoforganiccarboncomponentweredeterminedinthe 犈狌犮犪犾狔狆狋狌狊犵狉犪狀犱犻 planta tion, 犆狌狀狀犻狀犵犺犪犿犻犪犔犪狀犮犲狅犾犪狋犪 plantationand 犘犻狀狌狊犿犪狊狅狀犻犪狀犪 secondaryforestinsouthwestedgeofsi chuanbasin,theresultsshowedthat:(1)thesoilwaterstableaggregatesinthethreeforestsweremainly macroaggregates(> 0.25 mm).thewaterstabilityofaggregatedistributionpatern wasdiferentinthe threeforests,thewaterstableaggregatesof> 5,0.5~0.25mmin0 20cmsoillayer,and < 0.25mmof 20 40cmsoillayerweredominantfor 犈狌犮犪犾狔狆狋狌狊犵狉犪狀犱犻 plantation,and 犆狌狀狀犻狀犵犺犪犿犻犪犔犪狀犮犲狅犾犪狋犪 planta tionwasfocusedby > 5,0.5~0.25mmin0 20cmsoillayer,and1~0.5,0.5~0.25 mmin20 40cm soillayer,and 0.25mmin0 20cmsoillayer,and>5mmin20 40cmsoillayerfor 犘犻狀狌狊犿犪狊狅狀犻犪狀犪 secondaryforest.thediferenceofsoilaggregatestabilitywassignificantfordiferentforesttypesin20 40 : : Q8!"(2011BAC09B05); % <6 : $ "0 +!"; 3 ) " M!"( , ) ::#(1990 ),,, ()*,,-./ 9 )* E mail:[email protected] <= : (1957 ),, 5,, (,,-./ ) )* E mail:[email protected]

2 cmsoillayer,themwd,,padof 犘犻狀狌狊犿犪狊狅狀犻犪狀犪 secondaryforestwerehighest.accordingtothe Bissonnaisandinternationalsoilaggregatestabilityclassificationstandard,thesoilaggregatescould not reachthestablelevel(0.4 MWD <0.8)forthethreeforests.(2)ThecontentofHUCinthe 犘犻狀狌狊犿犪狊 狊狅狀犻犪狀犪 secondaryforestwassignificantlyhigherthan 犈狌犮犪犾狔狆狋狌狊犵狉犪狀犱犻 plantation,andthesoilhumifica tiondegreeof 犘犻狀狌狊犿犪狊狊狅狀犻犪狀犪 secondaryforestwasthehighestin0 20cmsoillayer,while 犆狌狀狀犻狀犵 犺犪犿犻犪犔犪狀犮犲狅犾犪狋犪 plantationwasthehighestin20 40cm.(3)Therelationshipsbetweenaggregatestability andorganiccarboncomponentsinthreeforestswasdiferent,andasignificantcorrelationwasfoundamong MWD,SOC,FAC,andHUC.Soilorganiccarboncouldpromotesoilagglomerationprocessanditsstabili ty,andfac,facandhucplayedthesignificantroles.inshort,thesoilaggregatestability,organiccar boncontentsandtheirrelationshipsinthe 犈狌犮犪犾狔狆狋狌狊犵狉犪狀犱犻 plantation, 犆狌狀狀犻狀犵犺犪犿犻犪犔犪狀犮犲狅犾犪狋犪 planta tionand 犘犻狀狌狊犿犪狊狅狀犻犪狀犪 secondaryforestweresignificantdiferences,theinfluencing mechanismswere diferent.theseresultscouldprovidetheoreticalbasisfortheaccurateevaluationoftheecosystemfunction ofdiferentforesttypesinthisregion. 犓犲狔狑狅狉犱狊 :diferentforesttypes;soilaggregate;soilorganiccarboncomponent S -V <,) D a MN :, L * )* [1 2] L c V, D a M L :+ ) " 0 [3] Tisdal [4] V #< \,? R # ) a Q, L V %&M 'V c V ( [ 3 Y@, ) L, G 3 LV ) cvd,_,. 0," [5],)* L J4: T : KM : D - D a(soc)s V, <[ " b M G' V, WLST L * V [6] SOC 3 A Z,Hc [ SOC A a F V M a, * [7 8] a a 9VS a(hac),! ` a(fac)v,c, `,J V *2 - [;FAC a ` ` 3 : ` V,! S HAC V W #, S HAC V W #, HAC VG I * 2 - V [; a (HUC)S SOC V -, a M 4 4 D - [9 10], SOC Y I Zb V,JH 3.? K Z[, V +,, c! >V,0 6, % 8 X 9:A!1#W,c! 9 G;, ),0 D K W 9 W _ < QR', 45 % ba,hc Jc! OV, UV _ I < P )* W. SOC V)* ^,M)*.? KX 5~10 V $( 犈狌犮犪犾狔狆狋狌狊犵狉犪狀犱犻狊 ) 9 a ( 犆狌狀狀犻狀犵犺犪犿犻犪犔犪狀犮犲狅犾犪狋犪 ) 9 R ( 犘犻狀狌狊犿犪狊狊狅狀犻犪狀犪 ) ) * J?, L _ ` _I SOC HI,O :(1) V M L S 4 ^?(2) SOC Z?(3)M)*! _` SOC 6 L V?Y 4 :) * SOC J L K V H c!1 _ ` V a /, U ) $%&' 1 +, 1.1 C )*! % # & [ ( E, N), %.?,? K,< #,S ( #%T )(!, =. b!,, U 99,96d, b 17

3 5 :# :.? K_` L MD a HI 111, _3, 1300 mm, I h,= 800m,,," - *+[, V? 5~10 $ 9 a 9 R, ( 犘犻狀狌狊犲犾犻狅狋犻 ) - ( 犆狌狆狉犲狊狊狌狊犳狌 狀犲犫狉犻狊 ). : ( 犘犾犲犻狅犫犾犪狊狋狌狊犪犿犪狉狌狊 ) ( 犆犪犿犲犾犻犪狊犻狀犲狀狊犻狊 ) > ( 犆犻狀狀犪犿狅犿狌犿犮犪犿狆犺狅狉犪 ) ( 犑狌犵犾犪狀狊狉犲犵犻犪 ) /( 犜狅狅狀犪狊犻狀犲狀狊犻狊 ),3,- ( 犔犻狀犱犲狉犪犮狅犿犿狌狀犻狊 ) 0 ( 犚狌犫狌狊犮狅狉犮犺狅狉犻犳狅犾犻狌狊 ) 1 ( 犆犪犿犲犾犻犪狅犾犲犻犳 犲狉犪 ) = ( 犘犻狋狅狊狆狅狉狌犿狓狔犾狅犮犪狉狆狌犿 ) ( 犕狔狉狊犻狀犲犪犳狉犻犮犪狀犪 )? ( 犉犻犮狌狊犾犪犮犲狉犪狋犻犳狅犾犻犪 ) ( 犃狉犱犻狊犻犪犼犪狆狅狀犻犮犪 ) ( 犘狔狉犪犮犪狀狋犺犪犳狅狉 狋狌狀犲犪狀犪 ) 3U ( 犕犪犺狅狀犻犪犳狅狉狋狌狀犲犻 ), _ \ ], M D 0 ( 犇犻犮狉犪狀狅狆狋犲狉犻狊犾犻狀 犲犪狉犻狊 ) 2 ( 犃狉犪犮犺狀犻狅犱犲狊狊犻犿狆犾犻犮犻狅狉 ) 3 2 ( 犇狉狔狅狆狋犲狉犻狊犾犪犫狅狉犱犲犻 ) 4 ( 犆犪狉犲狓犮狉狌狏犾犪狋犪 ) M M ) * W 9, ) *!3 ^ 5X20m 20m H,,V ) MHI, D V,5 +,[4 c (5 ), L < [ 6 E c (5 ) X (0 20cm) = (20 40cm)V 0.5kg, D,,,C c, +, L `, c (0 20cm) = (20 40cm)0.5kg,"0 LSOC SOC [ 7 L [11],? D a(poc) ' Cambardela [12] V, [ 5g/L(NaPO 3 ) 6 A $, AA 53μm D *X ) (>53μm), L D a. POC D a (EOC) [ 8, ' 8 A V _ F ( EOC [13] 'Li [7] V, [ M0.1mol/L V NaOH 0.1 mol/l Na 4P 2O 7 $ D a (DOC);HAC $ FACV A ph 1.0,_ AV HUC;DOC HAC FAC [ 7 L,HUC SOC6 DOC HAC FACV_F [, ' 3 1 ( ). > V, O [14] : 3 1 ( )= 犠狉 >0.25 犠狋 100%=(1- 犠狉 >0.25 犠狋 ) 100% (1) O : 犕狉 >0.25 >0.25 mm # V (g); 犕狋 D (g). (MWD): 犡犻 犠犻 MWD= 犠狋 (2) 犡犻 = 狉犻 -1+ 狉犻 (3) O : 犡犻 W #ST V. (mm); 狉犻 犻 V 3, 0.25mm V./ [0.25mm A. ; 犠狋 %A (g); 犠犻 JZ 犡犻 V (g);mwd < V. (mm) >V (PAD,%) O : 犠犱 - 犠狑 PAD= 100% (4) 犠犱 O : 犠犱 0.25mm L (g); 犠狑 0.25mm (g) ' MWD F J L # [15] :(Ⅰ)%_ L MWD<0.4;(Ⅱ)_ L0.4 MWD<0.8;(I) L 0.8 MWD<1.3;(Ⅳ)` L1.3 MWD<2.0;(V)% L MWD P <[ Excel2003 SPSS10.0 V P ' <, [ _ (ANOVA)Mc 1` P_^,0 [Pearson0 2 &-./ 2.1 ; *+4@ I* 51Y,0 20cm V>5mm $(36.02%)>a (35.85%)>R (30.76%), $ a ] a R ( 犘 < 0.05); 5~2,2~1,1~0.5mm V _` 8 ]a_^( 犘 >0.05);0.5~0.25mm $(8.85%)>a (8.70%)>R (6.2%), a $]a R ( 犘 <0.05) 20 40cm,>5mm V 60 20cm _I_W, R (36.14%)> $ (33.18%)> a (28.36%),R ] a a ( 犘 <0.05); 5~1 mm 3 # 8 _ ^ _ ]a( 犘 >0.05);1~0.5,0.5~0.25 mm a (14.02% 14.36%)> R (10.45% 16.28%)> $(10.23% 8.32%),a ]a R $ 0.25mm R (29.59%)> $ (23.56%)>a (22.26%),R ]a a $( 犘 <0.05), 20 40cm $(24.41%)>R

4 (17.14%)>a (19.88%), $]a a R ( 犘 <0.05) )1 ; *@ I H * H 1Y,0 20cm MWD _I _` 8 ]a_^( 犘 >0.05), 20 40cm R (0.77)> a (0.65)> $ (0.59),R ]a $( 犘 <0.05), ' Bissonnais [14] M L # H [14 15],3 V0 20,20 40cm V L _ L (0.4 MWD<0.8) _` 0 20cm a ] a R, 20 40cm R ] a a,pad 6 _` 0,_ ` _ ` (]a_^ 2.2 ; *+4@ * 2Y,3 0 20cm SOC ST 21.97~31.11g/kg,3 V SOC $(31.11g/kg)>R (28.45g/kg)>a (21.96g/kg), $]a a ( 犘 <0.05);20 40 cm SOC ST 17.77~23.39g/kg, R (23.39g/kg)>a (20.64g/kg)> $(17.71 g/kg),r ]a $( 犘 <0.05) _`V 0 20cm EOC ST 4.14~10.19g/kg, 20 40cm,EOC S T 4.53~5.21g/ kg, _I _I6 SOC _IW ; 0 20cm $ ] a a ( 犘 < 0.05) Y, J EOC V,- 0 20cm 1 ; *+4@? I / 4 /cm MWD/mm /% PAD/% $ 0.72±0.05a 76.44±10.03ab 12.65±1.14b 0 20 a 0.67±0.13a 77.74±3.55a 9.00±0.59c R 0.69±0.09a 70.41±2.11b 17.94±2.21a $ 0.59±0.2B 75.59±6.01B 16.32±4.33A a 0.66±0.27AB80.12±8.98AB 9.82±1.41B R 0.78±0.04A 82.86±5.24A 2.52±0.44C : " 0 20cm ^ _` 8V _ ^;3 " 20 40cm ^ _ ` 8 V_^ ` 2 ; *+4@ * 4 /cm SOC/ DOC/ EOC/ HAC/ FAC/ HUC/ HAC/FAC $ 31.11±3.73a 0.57±0.07a 10.19±2.17a 4.23±0.31a 7.99±0.09a 18.32±2.91a 0.53±0.04a 0 20 a 21.97±0.38b 0.55±0.12a 4.14±0.83b 4.10±0.74a 6.84±0.33a 10.48±1.04c 0.60±0.17a R 28.45±2.10ab 0.41±0.03a 5.49±1.02b 4.63±0.35a 7.30±0.51a 16.11±6.48b 0.63±0.12a $ 17.77±5.74B 0.38±0.05A 4.53±0.64A 4.37±0.99A 5.91±0.27A 7.11±1.83B 0.74±0.09AB a 20.64±1.62AB 0.23±0.02A 4.63±0.95A 4.60±0.17A 5.40±0.73A 10.41±1.96AB 0.85±0.2A R 23.39±3.98A 0.31±0.01A 5.21±0.72A 4.12±1.15A 6.76±0.97A 12.20±3.77A 0.61±0.03B _` DOC HAC FAC _` ]a_^ 3 HUC 6 FAC W, 0 20cm HUC $ R ]a a ( 犘 <0.05);20 40cm R (12.20 g/kg)>a (10.41g/kg)> $(7.11g/kg), R ]a $ ( 犘 <0.05) a HAC6FAC1F(HAC/FAC)Y I a V,J < [ V Z ` HAC FAC 2,S a 9V - [16] 0 20cm HAC/FAC3 6 HAC MW, R (0.63)>a (0.6)> $(0.53),W_` 8_^_]a;20 40cm a (0.74)> $(0.85)>R (0.61), a ]a R ( 犘 <0.05),0 20cm R a a, 20 40cm a a a

5 5 :# :.? K_` L MD a HI 113 犛犗犆 *' I * 3Y,. I L V MWD c]a 0,PAD 6 SOC HUC MWD c] a 0 ;R 6 MWD c ] PAD 6 SOC V A, $ MWD 6 FAC POC c ] a 0,6 HAC/ FAC c%] a 0,PAD 6 EOC MWD c ]a 0 ;a MWD 6SOC HUC a 0 Y,_` J L 6 SOC V _ `,W MWD PAD A,SOC FAC HUC POC ) `V I L ; *+4@ 犛犗犆 *' I * DOC EOC HAC FAC HUC HAC/FAC POC MWD PAD $ a R SOC DOC EOC HAC FAC HUC HAC/FAC POC MWD SOC DOC EOC HAC FAC HUC HAC/FAC POC MWD SOC DOC EOC HAC FAC HUC HAC/FAC POC MWD : ]a; ]a;doc D a;eoc D a(g/kg);hac a(g/kg);fac a(g/kg);huc a(g/kg);hac/fac a6 a1f;poc? D a(g/kg);mwd. (mm); mm (%);PAD >V (%) 3 0 ' 3.1 ; *@ I* _` V \,a 0 20cm V >5,0.5~0.25 mm, M cm V1~0.5,0.5~0.25 mm ST ] a `, $ 0 20cm V0.5~ 0.25mm ] a `, R 20 40cm V>5,0.5~0.25 mm S T, ` _I_`,- :(1)?!c.Vb UV, M 0, M ` 3;(2) UV45 ' $%D<UV,,a 9 R c, L, ) * : [ [17], -. / E J V > V; (3) ) %&V ( 3 ; F [18] ) * \, $ ' V 2 ) K

6 V 6,a J3 * [V M M = [19] J 8! 9 L M SOC HIV)* \, J V, - X >5, 1~0.5mm Z 2 X S T,Z 6 M ) * V 0 `,W_`VS,M)*V0 20cm 0.5~0.25 mm _` (]a_^,w 6M) * V V _ ` D ;b W,Almajmaie [3] )* \, " V_^J,M)*V, = [19] V,Z Y ) S _^V, D3 W V)* _` J L V, -X 20 40cm,3 R V L a,w _ L (0.4 MWD<0.8),PAD 6 V L 6 MWD V _ I M W = [20] )* \,>0.25 mm V!c,! L, SOC a!,z6m) * V ) * W `,3 _^`3, a 9 R ` V, cv `& ` LV ', ' SOC G I [21],. L A C #, V ) $ L [22] 3.2 ; *+4@ 犛犗犆 * Q a 9 R S ) +G,G' 0J $`, M V ",-, V, 6 [23] V)* W, 9 SOC 0J ` ) =, 9, +, >V,J SOC FM D -V M)* \,_` J DOC HAC FAC _]a,y,a 9V HAC 45UVV, J_` V Z ` < %, FAC HAC V V W #, HAC V ` 3,J _` V Z_ 2 J EOC V,- X 0 20cm, $]a R a,6 SOC W, Y, $ SOC `,W,SOC V `,_< a M 3 V L,c ` ) M ) * N V MWD a > R > $,` V EOC _< V L HUC 0 20cm 20 40cm,`, J HUC V ]a_^, )* 6 [24] V)* W,HAC/FAC_` #8] a_^,6 HAC FAC 01,HAC/FAC J_` V SOC V Z 2,`,HAC/FAC FS a ^V #W [16],M)*0 20cm R V a : a, cm a a 3.3 ; *+4@ I' 犛犗犆 * J Hc J L M SOC P 4:)*,Regelink [25] )* \, ` V SOC ph V `3 Wen [26] )* \, V G % [ 3 V KA$ SOC V L )*A\, SOC V : - [ 6 SOC V,Li [7] ) *, SOC DOC EOC HAC FAC HUCM3 6 MWDc]a 0,_`= L M)* $ MWD 6 FAC POCc]a 0,6 HAC/FACc%]a 0 ;a MWD 6 SOC HUC c ] a 0 ;R 6 MWD c ] a 0,M)*6 Li [7] V ) * _ 8 W V :W Y)S= L 6 UV J SOC J L K_`;b W SOC J_`45UV Z 2 _`, M)* Y)J D 4 & ' (1)_` 3 (>0.25 mm), $J V * [VX 0 20cm V>5,0.5~ 0.25mm 20 40cm V 0.25 mm S T;a X 0 20cm V >5,0.5~0.25 mm 20 40cm V 1~0.5,0.5~0.25 mm S T;R X 0 20cm V 0.25mm 20 40cm V>5mm ST (2) V_^J L 20 40cm 2 _` R V L a 3 L _ L (0.4 MWD<0.8) (3)_` J SOC V,-

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