34 4 20148 BuletinofSoiland WaterConservation Vol.34No.4 Aug.2014 1 1 2 1 (1. 300071;2. 300387) : χ2 Spearman 40 780 χ2 357 423 ; Spearman 356 424 χ2 Spearman (279 ) (780) 35.77% 40 3 : ; ; ; :A :1000-288X(2014)04-0070-06 DOI:10.13961/j.cnki.stbctb.2014.04.027 :Q948 NumericalAnalysisofPlantsInterspecificRelationshipsinQilihaiWetland LILan-lan 1 XU Nuo 1 MO Xun-qiang 2 LIHong-yuan 1 (1.Colegeof EnvironmentalScienceand EngineeringNankai UniversityTianjin300071China; 2.Colegeof Urbanand EnvironmentalScienceTianjin Normal UniversityTianjin300387China) Abstract:Basedonthedataresourcesinvestigatedfromthefieldtheinterspecificrelationshipsamong780 speciespairswhichbelongto40dominantplantspeciesofqilihaiwetlandvegetationwereanalyzedbyusing methodsofχ 2 -testandspearman srankcorrelationanalysis.theresultsshowedthat:(1)analyzedbyχ 2 - testtherewerepositivecorrelationfor357pair-speciesandnegativecorrelationfor423pair-species.(2)by applyingspearman srankcorrelationanalysistherewerepositivecorrelationsfor356pair-speciesandnega- tivecorrelationsfor424pair-speciesanalyzedby.itclearlydemonstratedthatthe2testmethodsderived pendentlydistributedandhadalooserelationshipwitheachother.thisfurtherindicatedthatthevegetation mightbeinastateofdegradation.the40dominantspeciesweredividedinto3ecologicalspeciesgroups. similarresults.comparedwithχ 2 -testspearman scorrelationcoeficientwasmoresensitive.thepropor- tionofsignificantcorrelatedspeciespairwas35.77%whichindicatedthatmostofthespecieswereinde- Speciesinthesameecologicalspeciesgrouphadthesamewayofresourcesutilizationandbiologyrequire- ment.howeverweobservedthatspeciesbelongingtodiferentgroupshadthetrendofsuccessionand transformintoeachother. Keywords:Qilihaiwetland;plantcommunity;interspecificassociation;ecologicalspeciesgroup [1-2] [4] ; :2013-09-06 :2013-09-25 : (51278330); (11JCZDJC24500) : (1989 )( ) E-mail:xiangtianju2013@ 163.com : (1963 )( ) E-mail:eialee@ nankai.edu.cn [3]
4 : 71 χ 2 [5] [6] [7-8] (Compositae) (Gra- mineae) (Convolvulaceae) (Chenopodi- aceae) [9] [10] [11] (Tamarixchinensis) (Ziz- [12] [13] iphusjujuba) (Lespedeza davuri- [14] ca) (Lycium chinense)4 [15] 1.2 1.2.1 样地调查 20128 10 [16] [17] [18] [19-20] 158 1 m 1 m 158 290 >5%40 (1) 1.2.2 种间联结性 χ 2 40 158 1 1.1 (39 16 39 19 N117 27 117 38 E) 130km 40km 15km abcd 5 χ 2 Yates : X 2 = N ( ad-bc -0.5N) 2 (a+b)(b+d)(a+b)(c+d) 3 :N ;a 2 9500hm 2 2m 4800hm 2 4700hm 2 2/10000 ad<bc 2~2.4 m [17] ( ) ad>bc ad=bc X 2 < X 2 0.05(1) X 2 0.05(1)=3.841 ;X 2 0.05 (1)<X 2 <X 2 0.01(1) ;X 2 >X 2 0.01(1) X 2 0.01(1)=6.635 1.2.3 Spearman 秩相关分析 500~600mm 80% Spearman Spearman 6 8 11.2 5.3 1 ; 25.7 7 31.5 158 4001 0 1 780 2 2 ;b B A ; c A B ;d SPSS17.0
72 34 1 40 1 (Humulusscandens) 57 21 (Xanthium strumarium) 35 2 (Polygonum aviculare) 11 22 (Bidenspilosa) 8 3 (Portulacaoleracea) 32 23 (Artemisiacapilaris 9 4 (Kochiascoparia) 67 24 (Artemisiascoparia) 17 5 (Suaeda glauca) 33 25 (Cirsium setosum) 16 6 (Chenopodium urbicum) 8 26 (Ixerispolycephala) 15 7 (Chenopodium album) 43 27 (Eclipta prostrata) 30 8 (Amaranthuspaniculatus) 29 28 (Hemisteptalyrata) 10 9 (Lepidium apetalum) 21 29 (Mulgedium tataricum) 13 10 (Glycinesoja) 16 30 (Echinochloacrusgali) 9 11 (Acalyphaaustralis) 17 31 (Echinochloacrusgali) 25 12 (Rubiacordifolia) 18 32 (Echinochloacaudata) 9 13 (Hibiscustrionum) 23 33 (Eleusineindica) 24 14 (Abutilontheophrasti) 26 34 (Setariaviridis) 80 15 (Cynanchum chinense) 16 35 (Setaria pumila) 8 16 (Calystegiahederacea) 15 36 (Chlorisvirgata) 32 17 (Pharbitisnil) 17 37 (Phragmitesaustralis) 471 18 (Pharbitispurpurea) 22 38 (Digitariasanguinalis) 60 19 (Leonurusjaponicus) 10 39 (Panicum miliaceum) 7 20 (Solanum nigrum) 16 40 (Sonchus wightianus) 23 : =( + + )/3 =( / ) 100% =( / ) 100% Spearman : 2 2.1 [1] N 6 d 2 k k=1 r(ij)=1- N 3 -N :r(ij) Spearman ;N χ2 15 ;d k=x ik-x jk x ik x jk i j 15 37( ) k ( ) 4 7( )5 7( ) χ 2 3 40 357 45.77% 31 38( ) 423 54.23%; 0.84 χ 2 ( ) 70cm 8.46% 5.77% 15 30; 2.69% 8 13 40 5%40
4 : 73 ) 8 8 37( 27 117; ; 27 34( ) χ2 Spearman χ 2 Spearman 2.2 χ2 01 χ2 Spearman SPSS 17.0 Spearman (2) Spearman (2) 356 Spearman χ 2 45.64% 424 54.36% 35.77% 279 27 108 3 5( ) Spearman ( ) χ 2 Spearman χ2 Spearman 27.31% Spearman 2 χ 2 Spearman χ 2 χ 2 15 30 312 357 8 13 402 423 Spearman 27 117 212 356 27 108 289 424 2.3 puscompactus) (Polygonum hydropiper) (Lemna minor) 2.3.2 中生植物种组 ; 2.3.3 旱生植物种组 χ 2 Spearman 40 3 2.3.1 湿生植物种组 χ 2 Spearman >5% (Typhaorientalis) (Schoenoplectustabernaemontani) (Scir-
74 34 3 :(1) ;(2) 3.1 ;(3) χ 2 Spearman 40 [923] 780 Pear- son χ2 2 3.2 ; 40 Spearman 3 [9] :(1) [21] ;(2) ;(3) ;(4) ;(5) ; (6) 5 [22] 6 5 6 ( ) (279 ) (780) 35.77% 0.84; χ2 (5.77%) (2.69%)40
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