383 0186 BuletinofSoiland WaterConservation Vol.38,No.3 Jun.,018 & X R( + 1, 1, < 1,=>,?@A 3 (1. E^ IFTU ^,NO 730070;.NO\ ^,NO 730070;3.NO B`a -[/H,NO 730000) -.:[# ] _D5 & % I /, + -. I P+- [ ] ( 犜狉犻狋犻犮狌犿犪犲狊狋犻狏狌犿 ) '& / ( 犈犾狔犿狌狊犱犪犺狌狉犻 犮狌狊 / 犕犲犱犻犮犪犵狅狊犪狋犻狏犪 )89, S & F. ( ` 8 9 `,? % I /, 8 6 F ` [ ] & F.(`. c & a L,?,= *.,9 (0 5cm) ` N,=, &, F. ( ` F F ` 7, F ` c E, F. ( ` ) P & 1kg/m,L4 &6%, )P&1%,L4 MN.μS/cm [ ]_D5 & %.? [. I,=? L +. I:; /01: 0& ;. I; ;\J./ :A 3:1000 88X(018)03 003 06 45673:S157,S156.4 + 1 89:,(,(a,._D5 & % I /[J].,018,38(3):3 37.DOI:10.13961/j.cnki.stbctb.018.03.006.LiAng,ZhangMing,ZhangJian,et al.efectsofgrowingspringwheatandforagegrassonsalinizationofcultivatedlandinirrigatedregionof NorthwestChina[J].BuletinofSoiland WaterConservation,018,38(3):3 37. 犈犳犳犲犮狋狊狅犳犌狉狅狑犻狀犵犛狆狉犻狀犵犠犺犲犪狋犪狀犱犉狅狉犪犵犲犌狉犪狊狊狅狀犛犪犾犻狀犻狕犪狋犻狅狀狅犳犆狌犾狋犻狏犪狋犲犱犔犪狀犱犻狀犐狉狉犻犵犪狋犲犱犚犲犵犻狅狀狅犳犖狅狉狋犺狑犲狊狋犆犺犻狀犪 LIAng 1,ZHANG Ming 1,ZHANGJian 1,WU Yingzhen,GEChengxuan 3 (1. 犛犮犺狅狅犾狅犳犆犺犲犿犻狊狋狉狔犪狀犱犈狀狏犻狉狅狀犿犲狀狋犪犾犈狀犵犻狀犲犲狉犻狀犵, 犔犪狀狕犺狅狌犆犻狋狔犝狀犻狏犲狉狊犻狋狔, 犔犪狀狕犺狅狌, 犌犪狀狊狌 730070, 犆犺犻狀犪 ;. 犆狅犾犲犵犲狅犳犎狌犿犪狀犻狋犻犲狊, 犌犪狀狊狌犃犵狉犻犮狌犾狋狌狉犪犾犝狀犻狏犲狉狊犻狋狔, 犔犪狀狕犺狅狌, 犌犪狀狊狌 730070, 犆犺犻狀犪 ; 3. 犆狅狀狊狋狉狌犮狋犻狅狀犕犪狀犪犵犲犿犲狀狋犛狋犪狋犻狅狀狅犳犌犪狀狊狌犘狉狅狏犻狀犮犲犆狌犾狋犻狏犪狋犲犱犔犪狀犱犙狌犪犾犻狋狔, 犔犪狀狕犺狅狌, 犌犪狀狊狌 730000, 犆犺犻狀犪 ) 犃犫狊狋狉犪犮狋 :[Objective]Theefectsofplantingspringwheatandforagegrassonsalinizationofcultivatedland wereanalyzedinordertoprovidescientificbasisforthepreventionandcontrolofsoilsecondarysalinization inirrigatedregion of NorthwestChina.[Methods] 犜狉犻狋犻犮狌犿犪犲狊狋犻狏狌犿,mixed grass ( 犈犾狔犿狌狊犱犪犺狌狉犻犮狌狊 / 犕犲犱犻犮犪犵狅狊犪狋犻狏犪 )andsoilunderthem weretakenasthestudyobjects.thecoverage,height,above ground biomassofvegetationandsoilmoistureandelectricalconductivityweremeasuredtoinvestigatetheimpacts ofspringwheatandforagegrassonlandsalinization.[results]duringthewholegrowthstage,thecoverage, heightandbiomassof 犜. 犪犲狊狋犻狏狌犿 andgrassincreasedsignificantly.afterwheatharvest,wheatfieldwas bareasnakedland,whilegrassstilcoveredthelandsurface.comparedwiththebareland,surfacesunlight :017 1 13 :018 01 07 :!"# '&+- C :I [ (31560185) : (1969 ),A(BC),NO,, Y, :ITU?QF-[ E mail:liang@lzcu.edu.cn :> c(197 ),M(BC),NO,, Y, :ITU?Q a E mail:wuyz@gsau.edu.cn
3 :_D5 & % I / 33 intensity,temperatureandsaltcontentofsurfacesoil(0 5cm)undervegetationcoverageweremuchlower, whilegroundhumidityandsoilmoisturecontentweremuchhigher.correlationanalysisindicatedthatthe strongestcorrelationoccurredbetweenbiomassandsoilmoistureandbetweencoverageandsoilsalt,and therewasanegativerelationbetweensoil moistureandsalt.regressionanalysisdemonstratedthatsoil moisturecontentincreasedby6% asbiomassincreasedby1kg/m,andsoilelectricalconductivitydecreased by.μs/cmasvegetationcoverincreasedby1%.[conclusion]plantingspringwheatinirrigatedregions ofnorthwestchinawilcausesoilsecondarysalinization,whileplantingforagegrassmayweakenhazardof soilsecondarysalinization. 犓犲狔狑狅狉犱狊 : 犙犻狀狑犪狀犵犮犺狌犪狀犻狉狉犻犵犪狋犲犱狉犲犵犻狅狀 ; 狊狅犻犾狊犲犮狅狀犱犪狉狔狊犪犾犻狀犻狕犪狋犻狅狀 ; 狏犲犵犲狋犪狋犻狅狀犮狅狏犲狉犪犵犲 ; 犲犮狅犾狅犵犻犮犪犾犮狅狀狊犲狉狏犪 狋犻狅狀犪狀犱犻犿狆狉狅狏犲犿犲狀狋犳狅狉犳犪狉犿犾犪狀犱狊 _D L M, & * \ L* [1] & a Y, D5,[* I89 [] NO 0& 0Y, & V& [, 4& I / 1/3, E a [ 3] G -[ IW & *0, J `,, G&, S = 8, ( *( [4] ], G. ( -[! % [5], L4 0 0cm MN77%~88% N % [6] -[ Y,a *, P& F.(`,=b MN0 30cm ` [7], 0& \J % ( 犜狉犻狋犻犮狌犿犪犲狊狋犻狏狌犿 ) L,? 4 ` L&;= /, 4\J0 0cm?N,=b.IE ` \ ( [8].,, ph 5 7 ` MNa [1] NO, N L P&\J0 5cm ` MN ` -.( -[ I \ ` [5,9 10], % & E 0, 8. 3/ 9 WI, 8 < `, S. 3/, 8 T U `WI, <, < / I, _D5 & + IP+- 1 1.1 &:; 0& NO ) U, 5, 5.8,M 84.4 mm,b ) 7 9( M` 78%), = ` & 1888 mm, 5 7 [11 1] 1. a@ 0& I 0, 016 & D F0I!4 (103 33 E,36 45 N,%$1950m) ", '& / ( 犈犾狔犿狌狊犱犪犺狌狉犻犮狌狊 / 犕犲犱犻犮犪犵狅狊犪狋犻狏犪 ), (CK) / 36[;)6[ Q4, *R,`<1 4m 6 m, * 0.5 m % G \ & D,& ` 30 g/m, N O \ ^, &` 1.5,3.g/m & & # &, 7 0cm, & 3cm, cm & IJ, F A. 4 16 H I, *,,8 & J -[, 510 610 &,J & = (8, 70 L,915,10 15 L *, ( & F.( ` [13], TU 0 5cm H,G Z Z & [ 0 5cm,B Z ` G 5, 5 `F9 c,, ` G, G 5 5 ` &N [14]
34 38 1.3 9 G Excel SPSS $ < [,?; G Pearson, 9 7; G 7, 7 [15].1 ()C * ( F 9./Y P =O(<1a), (616 ), '&, (616 710 ) ; 9 15 L M 0,= * ;9 15, M 40%, (1015 ) F 78.8% & =O(<1b),9 W I a F F. ( `=O(<1c), L, F.(` V.(`, F.(` * F,, & F.(` ;, & & ; L (10 15 ), 6 0,= *. 51 016 & )C *. a! (0-5 犮犿 )Y/L S R * TU. / (< a), ;., < W R, 710, &, 7.60 10 4 lx,=.65 10 4 1.98 10 4 lx; L,?F (CK), E,= < (0 5cm) =O(< b),9wia F, L (7 10 ), ; L, E,b =O(< c),9wi, &, < W,9 X : > > ; L, Y,= 5 &016 Y/L *
3 :_D5 & % I / 35.3! " (SR * / ` (<3a), ; ( &, <. ; L, F, < Y,b ` ` = O (<3b),, `?, < ` ; `, G (710 ), ` W R,9 X : > > ; L, F, ` b &;, &, 319.3μS/cm,9 (69.5μS/cm), N 118.9μS/cm 53 &016 " *.4 Y/a 6 6 F ` `, 10 15 ( 1), &.(` J 5 ( 狆 <0.01),9 F F. (` 7, 0.998 = O, F 6 J 5, `, a 9 F F.(` 7 0.734 =, F 6 5, `, ` MNa 7,X : > F.(`>&,9 ` F 7, -0.955 = `F c, 狉 -0.701, ( ` ), ` MNa E ( ), = O, F. ( ` ) P & 1kg/m, LP&6%,, 犚 0.539LM, G 7 [ L 53.9%; `=O, ) P & 1%, LMN.μS/cm, G 7 [ L 91.% 1 & E(Y/6 " # & F.(` 1 0.995 0.998 0.733-0.955 & 1 0.995 0.694-0.951 F.(` 1 0.734-0.954 1-0.701 1!: 7 0.01 ; 0.05, 狀 =1 & <=L > " E(9 /J /% & /cm F.(`/(g m - ) 犚 犚 犚 /% 狔 =0.05 狓 +8.155 0.537 狔 =0.074 狓 +8.190 0.481 狔 =0.006 狓 +8.157 0.539 /( μ S cm -1 ) 狔 =-.31 狓 +94.459 0.91 狔 =-6.870 狓 +94.78 0.905 狔 =-0.573 狓 +94.088 0.909
36 38 3 # \./ *(B, (. [8] :, [16] J &*, % & (.? (. 4 7),& &V&, 4 & Y1/3. I @ [],\J ( 4 b M N, \ (\J, M N, = 53 [17] \ (. F V 3/WI,9 9/,9 ` 3/WI,= %& E ( ( L ) 0, 3/ S E '& / =O,., < & F.(` c P&a ; -.,. (7 10 ),. b, ( C 39g) ( C 1.9g) ( C 4.5g),O X, =4 <. b I. L, 0& M ) 7 9, L(8 10)? F,='& M & *. R/ TU L, L, N,= & ; ' &, N,= 9 (, S ( F,, = 4 N ;,, S 7 `, 3 @, = 4 MN,= ; '&, F `, G, =4 N,= L,?, =9 F Y;= ' & F G,9 N, = WI/ `, F `?, TU /, `F ;., F, T U ( )I.? /, = 4 ` W 7 10 L, N,= `,,, = 4 P& MN, =,, &, J & M #$, N, b, =4 C? & L,?, 5_D& W, = 4 b, F5 P&;= G,? &,,, = 4 F5 N 1015 ` L, ` &,. F `,= J 0 40cm, L,?, bf5, =4 : b, E F [7] E H,.%., % TU8?, '& L4? N [8],, 7 `c / M a L, / '&., ` 3c! M a,9+-. I 0 3Q 6 ` /, 1L, F.(`F
3 :_D5 & % I / 37 F ` 7 ( 狉 =0.734, 狉 =-0.955); E F ` L, F. ( ` ) P & 1kg/m, 4 F 6%, ) P&1%, 4 M N.μS/cm; G F 7 `,9[ L 53.9% 91.% F F., 0& %.?,[. I89;= / '&? L +.. I 6 MN I :;, 0& \ ', J G,.? ( / '&) [6] N %, %, _. G Y [J].,003,1(5):6 30. [7],, %,. 0 & M +. I 0 [J].,008, 5(10):0 4. [8],,,.. / [J].,013,30(10):150 1507. [9], %,?,. 0 [J].NO\,005,40(6):757 76. [10] (,,,.NO 0& \ W4 _ 1[J]. H,01,3(1):70 75. [11],,(a,.NO 0 D3 8 7 [J].,00,16(3): 110 113. [1],, a,. 0& \J 8 6 [J].,014,46(1):100 106. [13] LiAng,NiuKechang,DuGuozhen.Resourceavaila bility,speciescompositionandsowndensityefectson [ 8 ] productivityofexperimentalplantcommunities[j]. [1],> c,',._ D N PlantSoil,011,344(1):177 186.. I /[J].,016,36(6):47 5. [14]. \I [M].3.D R: \ [] J, 7, *,.N O & I,007:178 188. 6 89* [J].5,014,31(1):57 64. [15],(,,._D N \J [3] K,&, `.& I B 8; ` /[J].,016,30 F U [J].& *,006,5(1):71 76. (5):86 90. [4] L,S%,c.. ( [16] (,,,.5 T* D G[J]. GFTU.(,00,8(1):31 35. 5 [[J]..(,011,46(4):10 1. [5] %,?,( (,.. [17].. ( + - I [ 8 0 [J].,003,1(4):58 6. [J].NO&,013,18(): 56 59. 櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍櫍 (+,)31*) [13],,,. JK [J].,013,8(7):774 78. [14]?,. P& [J]. +,^,013,5():3 6. [15], `,. J K [J]. JK,008(1):13 18. [16],>`,S,. O HI P &: [J].,007,14():68 71. [17] 'B,T,,. JK O! 3/WI[J]. [,01,3():51 56. [18], `. NDVI WI [J].\,010,6(S1):30 34.