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应用底栖动物完整性指数B-IBI评价溪流健康
引用本文:王备新,杨莲芳,胡本进,单林娜.应用底栖动物完整性指数B-IBI评价溪流健康[J].生态学报,2005,25(6):1481-1490.
作者姓名:王备新  杨莲芳  胡本进  单林娜
作者单位:南京农业大学昆虫学系,南京,210095
基金项目:国家自然科学基金资助项目(40301047,30370252)~~
摘    要:B-IBI指数是溪流生态系统健康评价常用指标之一。据安徽黄山地区溪流的33个底栖动物样点数据(11个参照点,22个受损点),对21个生物参数进行分布范围、Pearson相关性和判别能力分析,确定B-IBI指数由总分类单元数、EPT分类单元数、前3位优势分类单元%、粘附者%、敏感类群%和BI指数构成。分别用3分制、4分制和比值法统一各参数量纲,B-IBI指数值即为累加各构成指数的分值或比值。B-IBI箱线图分析表明,上述3种方法计算出的B-IBI值有较高判别能力(IQ=3),能很好地判别参照水体和受损水体,且3者之间具高相关性(r>0.90)。分别依据参照样点和所有样点B-IBI值建立健康评价标准,比较3分制、4分制和比值法对评价结果的准确性,表明用比值法统一各参数量纲并依据所有样点的B-IBI值建立的健康评价标准的准确性优于3分制和4分制法。建立了适合祁门县溪流生态系统健康评价B-IBI标准B-IBI>3.59健康,2.7~3.59亚健康,1.8~2.69一般,0.9~1.79差,B-IBI<0.9极差。祁门县21个样点的水体,14个健康,6个亚健康,1个一般。B-IBI与电导率(r=-0.62,p<0.01)和生境质量(r=0.65,p<0.01)显著相关。

关 键 词:B-IBI指数  健康评价  大型底栖无脊椎动物  溪流
文章编号:1000-0933(2005)06-1481-10

A preliminary study on the assessment of stream ecosystem health in south of Anhui Province using Benthic-Index of Biotic Integrity
WANG Beixin,YANG Lianfang,HU Benjin and SHAN Linna.A preliminary study on the assessment of stream ecosystem health in south of Anhui Province using Benthic-Index of Biotic Integrity[J].Acta Ecologica Sinica,2005,25(6):1481-1490.
Authors:WANG Beixin  YANG Lianfang  HU Benjin and SHAN Linna
Institution:Department of Entomology; Nanjing Agricultural University; Nanjing; China
Abstract:Stream macro-invertebrate assemblages were collected from 33 stream sites in the south of Anhui Province China, among them 11 were unimpaired or minimally impaired sites and 22 were impaired sites. Twenty-one candidate metrics: Total number of taxa, EPT taxa, Intolerant taxa, Aquatic insects taxa, (Crustacea+Mollusca) taxa, Chironomidae taxa, Shannon-Wiener index, Dominant taxon%, Three dominant taxa%, Trichoptera%, Ephemeroptera%, Diptera%, Chironomidae%, Tolerant taxa%, Intolerant taxa%, (Crustacea+Mollus...
Keywords:B-IBI  health assessment  benthic macroinvertebrates  stream
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