广东横石水河大型底栖动物群落与环境因子的关系

201030112836—2845ActaEcologicaSinicahttp//*[e-mail]123121*1.5106422.5106423.510642CCA14。90%。CODpHCu、Pb。Cu、PbpH。、COD、COD。RelationshipbetweenmacroinvertebrateandenvironmentalvariablesinHengshishuiRiverGuangdongChinaCHIGuoliang12ZHAOYing3GUANZhaoying1WANGJianwu2TONGXiaoli1*1DepartmentofEntomologyCollegeofNaturalResourcesandEnvironmentSouthChinaAgriculturalUniversityGuangzhou510642China2InstituteofTropicalandSubtropicalEcologySouthChinaAgriculturalUniversityGuangzhou510642China3DepartmentofAppliedChemistryCollegeofScienceSouthChinaAgriculturalUniversityGuangzhou510642ChinaAbstractTherelationshipbetweenmacroinvertebratesandenvironmentalfactorsat14sitesontheHengshishuiRiverwasstudiedbyCanonicalCorrespondenceAnalysisCCA.Thespecies-environmentcorrelationsinthedryseasonandwetseasonwerebothhigherthan90%whichindicatedthedistributionofmacroinvertebratesinHengshishuiRiverwasstronglyaffectedbyenvironmentalfactorsmeasured.ChemicaloxygendemandCODandpHwerethetwomajorfactorsaffectingmacroinvertebratedistributioninthedryseason.Turbidityandheavymetalconcentrationssuchascopperandleadwerealsoinfluentialonmacroinvertebratedistributiontosomeextent.InthewetseasoncopperandleadconcentrationsandpHwerethemostimportantfactorsinfluencingmacroinvertebratedistribution.AtthespeciesleveltheabundanceofpollutiontolerantspeciessuchasCeratopogonidaeChironmidaeandTipulidaewerepositivelycorrelatedwiththeenvironmentalaxesofCODandheavymetalconcentrationbutthesensitivespeciessuchasGastropodaTrichopteraandEphemereopterawerenegativelycorrelatedwithCODandheavymetalconcentrations.KeyWordsmacroinvertebrateenvironmentalfactorCanonicalCorrespondenceAnalysisacidminedrainageHengshishuiRiver、、、、1。http//。2。。CanonicalCorrespondenceAnalysisCCA。CCACA3、。CCA4-13。24°31′37″N113°42′49″E。2070。、、pH。。AcidminedrainageAMD16km3———。、70km———。AMD。AMD14-17。CCA、、。11.1AMD4A1、A2、A3A4A1、A2A33.5kmA2A1A3A416km7B1、B2、B3、B4、B5、B6B7B77AMD3C1、C2C3C1C2500m1000mC330km。141。1.21850d120d。1.2.1CastanopsisfissaSchimasuperba。1.2.25mm20cm×15cm。1.2.325d。4g1515200711414。250120。75%。1.2.4YSI-6600、pH、、。555mLCOD738211http//、Cd、Pb、Zn。1.2.5《》、《———》《AquaticInsectsofChinaUsefulforMonitoringWaterQuality》19-23。1.3CCACANOCAVerssion4.5。22.1。A1、A2、A3、A4、C1、C2C3A2、C3pH6.05.0A1pH3.12。GB3838-2002CODCd、ZnPbⅤ。B1、B2、B3、B4、B5、B6B7B5、B6B7CODCu、CdZnⅠB1、B2、B3B44CODⅢⅣ1。1412100%Cu、Cd、Pb、Zn42。2.2190435102651。1508Bunn245%Parafossarulusstriatulus、BithyniamisellaPentaneurasp.50.9%、15.6%5.5%。98.6%11351。396Corbiculanitens、Limnodrilussp.、Orthocladiussp.Bellamya838230http//、19.2%、12.9%11.1%28712007-03—2007-05Table1WaterphysicochemicalparametersindifferentsamplingsitesSiteT/℃pHSpcond/ms/cmTDS/g/LCOD/mg/LNH4/mg/LA123.893.122.081.35129.320.54A222.816.210.410.2668.210.16A322.963.401.390.91102.160.47A427.543.311.000.6591.050.35B125.128.210.140.0950.000.36B221.988.060.120.0841.980.26B323.307.580.150.1026.540.30B420.707.440.140.0927.780.18B523.937.570.140.0914.820.18B623.837.360.150.1014.820.20B723.938.370.230.1514.200.24C126.623.510.980.6481.790.33C224.644.580.440.2975.000.25C324.806.640.280.1858.650.12SiteCl－/mg/LTurbidNTUCu/mg/LCd/mg/LZn/mg/LPb/mg/LA13.75182.806.040.25117.781.20A25.4224.900.900.044.790.15A33.6267.403.970.1651.760.75A45.35300.402.560.0936.720.61B16.91－0.230.010.820.12B24.2110.600.320.010.760.10B38.51－0.240.010.420.15B44.045.800.050.000.660.10B56.688.800.090.000.540.08B65.969.000.090.000.540.08B711.975.000.140.000.600.11C14.66150.202.330.0937.820.68C26.2173.001.180.0517.250.31C39.9318.400.760.039.390.2221412Table2Correlationcoefficientsbetweentheenvironmentalvariablesin14samplingsitesEnvironmentalfactorTpHSpcondTDSCODNH4Cl－TurbidCuCdZnPbTpH－0.467Spcond0.274－0.872TDS0.274－0.8731.000*COD0.346－0.8980.8980.897NH40.227－0.6200.8240.8260.714Cl－0.1750.523－0.486－0.487－0.523－0.436Turbid0.662－0.8300.7250.7250.7270.549－0.379Cu0.242－0.8610.996*0.996*0.9120.829－0.4970.699Cd0.209－0.8470.991*0.991*0.9130.826－0.4980.6630.998*Zn0.228－0.8010.977*0.977*0.8610.812－0.4620.6790.981*0.982*Pb0.343－0.8870.989*0.989*0.9000.828－0.4750.7580.984*0.978*0.975**938211http//。3Table3AmountofmacroinvertebratecolonizedindifferenttimeanddifferentreachSpecies20071—3DryseasonJan.Mar.2007PollutedreachCleanreachDownstreamreach20073—5WetseasonMar.May.2007PollutedreachCleanreachDownstreamreachPentaneurasp.281－－11－Orthocladiussp.－2－28167Cardiocladiussp.4284－3－Chironomussp.1－2－－121Chironomussp.25191－－－CaenisBicornis－671－－－Eubrianaxsp.－16－－－－Ceratopsychesp.－17－－1－Zaitzeviasp.－2－－5－Steneimissp.－8－－141Ordobreviasp.－4－－17－Bithyniamisella－235－－－－Parafossarulusstriatulus－768－－11－Gyraulusconvexiusculus－19－－14－Hippeutisumbilicalis－31－－10－Bellamyalimnophila－－－－6－Bellamyaacruginosa－2－－44－Corbiculanitens－33－－80－Limnodrilussp.－40－－76－Glossiphoniasp.－3－－17－Daphniasp.－37－－3－1%2.3。3398328591。、52.2%、15.7%6.6%56.7%13.7%。2524321154。、、23.0%、17.3%、11.9%