广东横石水河大型底栖动物群落与环境因子的关系
- 张立中
-
0 次阅读
-
0 次下载
-
2020-04-28 21:56:30
文档简介:
生态学报2010,30(11):2836—2845ActaEcologicaSinicahttp://www.ecologica.cn基金项目:国家自然科学基金资助项目(30270279,40871242)收稿日期:2009-04-02;修订日期:2009-06-18*通讯作者Correspondingauthor.E-mail:xtong@scau.edu.cn广东横石水河大型底栖动物群落与环境因子的关系迟国梁1,2,赵颖3,官昭瑛1,王建武2,童晓立1,*(1.华南农业大学资源环境学院昆虫学系,广州510642;2.华南农业大学热带亚热带生态研究所,广州510642;3.华南农业大学理学院应用化学系,广州510642)摘要:应用典范对应分析(CCA)对横石水河流域14个样点中的大型底栖动物与环境因子的关系进行了研究。结果表明,枯水期和丰水期的物种与环境因子的相关性均在90%以上,说明大型底栖动物在横石水河的分布很大程度上受到环境因子的影响。化学需氧量(COD)和pH值是影响枯水期大型底栖动物分布的两个主要因子,浊度和重金属Cu、Pb浓度对大型底栖动物分布也有一定程度的影响。在丰水期,重金属Cu、Pb浓度和pH值是影响大型底栖动物分布的关键因子。从种类水平看,耐污种类如蠓类、摇蚊和大蚊的丰富度与COD和重金属浓度的环境轴呈正相关,而敏感种类如腹足纲、毛翅目以及蜉蝣目昆虫与COD和重金属浓度的环境轴呈负相关。关键词:大型底栖动物;环境因子;典范对应分析;酸性矿山废水;横石水河RelationshipbetweenmacroinvertebrateandenvironmentalvariablesinHengshishuiRiver,Guangdong,ChinaCHIGuoliang1,2,ZHAOYing3,GUANZhaoying1,WANGJianwu2,TONGXiaoli1,*1DepartmentofEntomology,CollegeofNaturalResourcesandEnvironment,SouthChinaAgriculturalUniversity,Guangzhou510642,China2InstituteofTropicalandSubtropicalEcology,SouthChinaAgriculturalUniversity,Guangzhou510642,China3DepartmentofAppliedChemistry,CollegeofScience,SouthChinaAgriculturalUniversity,Guangzhou510642,ChinaAbstract:Therelationshipbetweenmacroinvertebratesandenvironmentalfactorsat14sitesontheHengshishuiRiverwasstudiedbyCanonicalCorrespondenceAnalysis(CCA).Thespecies-environmentcorrelationsinthedryseasonandwetseasonwerebothhigherthan90%,whichindicatedthedistributionofmacroinvertebratesinHengshishuiRiverwasstronglyaffectedbyenvironmentalfactorsmeasured.Chemicaloxygendemand(COD)andpHwerethetwomajorfactorsaffectingmacroinvertebratedistributioninthedryseason.Turbidityandheavymetalconcentrations(suchascopperandlead)werealsoinfluentialonmacroinvertebratedistributiontosomeextent.Inthewetseason,copperandleadconcentrations,andpHwerethemostimportantfactorsinfluencingmacroinvertebratedistribution.Atthespecieslevel,theabundanceofpollutiontolerantspeciessuchasCeratopogonidae,ChironmidaeandTipulidaewerepositivelycorrelatedwiththeenvironmentalaxesofCODandheavymetalconcentration,butthe
评论
发表评论