秦淮河上游水体大型底栖无脊椎动物群落结构及水质生物评价  

Macroinvertebrate Community Structure and Bioassessment of Upstream Qinhuai River

作　　者：吴东浩[1] 刘伟[1] 赵煜[1] 张哲海[2] 王备新[1] 

机构地区：[1]南京农业大学昆虫学系,江苏南京210095 [2]南京市环境监测中心站,江苏南京210013

出　　处：《环境监测管理与技术》2010年第5期19-22,30,共5页The Administration and Technique of Environmental Monitoring

基　　金：国家自然科学基金资助项目(30870345;40971280);南京农业大学"国家大学生创新性实验计划"基金资助项目

摘　　要：2009年4月用D形网半定量采样法调查秦淮河上游25个点位的大型底栖无脊椎动物群落多样性,共获得63个大型底栖无脊椎动物分类单元;其中,水生昆虫5目12科30属,软体动物9科11属19种,寡毛纲2科7属9种。结果表明,生物指数(Biotic Index,BI)比Shannon-Wiener多样性指数的评价结果更接近实际情况,BI与ρ(TN)(r=0.44,p<0.05)和ρ(NH3-N)(r=0.40,p<0.05)之间显著相关,Shannon-Wiene多样性指数与ρ(TN)(r=-0.19,p>0.05)和ρ(NH3-N)(r=0.44,p>0.05)无显著性相关。生物评价表明秦淮河上游水质受到严重污染,句容地区的水质要优于南京。Benthic macroinvertebrates assemblages were collected from upstream of the Qinhuai River in April,2009.A total of 63 macroinvertebrate taxa were found including 30 genera and 12 families of Insecta,19 species and 11 genera in 9 families of Mollusca,9 species and 7 genera in 2 families of Oligochaeta.Results showed that Biotic Index was more sensitive to indicate the actual situation of water quality than Shannon-Wiener diversity index did.The Pearson＇s correlation analysis showed that BI significantly corresponded with TN（r=0.44,p0.05） and NH3-N（r=0.40,p0.05）,while Shannon-Wiener diversity index had no significant correlation with TN（r=-0.19,p0.05） and NH3-N（r=0.44,p0.05）.The results showed that upper reaches of Qinhuai River were heavily polluted and the water quality of Jurong area was better than that of Nanjing.

关 键 词：大型底栖无脊椎动物 多样性指数 河流生物指数 生物评价 秦淮河 

分 类 号：X826[环境科学与工程—环境工程]