猫跳河流域底栖动物群落结构与水质生物评价  

Zoobenthos community structure and water quality biological evaluation in Maotiao River Basin

作　　者：马卓荦[1,2] 凌耀忠[1,2] 黄文达 MA Zhuoluo;LING Yaozhong;HUANG Wenda(China Water Resources Pearl River Planning Surveying&Designing Co.,Ltd.,Guangzhou 510610,China;Water Ecology Engineering Center of Pearl River Water Resources Commission,Guangzhou 510610,China)

机构地区：[1]中水珠江规划勘测设计有限公司,广东广州510610 [2]水利部珠江水利委员会水生态工程中心,广东广州510610

出　　处：《人民长江》2022年第6期99-104,共6页Yangtze River

基　　金：广东省水利科技创新项目(2020-26)。

摘　　要：调查河流底栖动物群落结构并进行水质生物评价,对制定流域环境管理策略有重要意义。为摸清长江二级支流猫跳河流域水生态环境状况,用底栖动物作为指示物种,对猫跳河水污染状况进行评价。调查发现:猫跳河有底栖动物82种,隶属于4门7纲51科,其中水生昆虫的种数占据明显优势。底栖动物总平均个体密度为84 ind./m^(2),总平均生物量密度为11.01 g/m^(2);Shannon-Wiener多样性指数平均值为1.57,Pielou均匀度指数平均值为0.66。水质生物评价结果表明,猫跳河流域大多处于污染状态,其中支流受污染的状况比干流更严重。Shannon-Wiener多样性指数和BMWP记分系统2种评价方法的结果存在一定差异,采用BMWP记分评价得到的结果普遍劣于Shannon-Wiener多样性指数评价的结果。Investigating the community structure of zoobenthos and carrying out biological assessment of water quality are of great significance to the formulation of watershed environmental management strategies.Through the investigation on zoobenthos in the Maotiao River Basin,the secondary tributary of the Yangtze River,82 species of zoobenthos were found,belonging to 4 phyla,7 classes and 51 families,among which the number of aquatic insects was dominant.The total average individual density of zoobenthos was 84 ind./m^(2),and the total average biomass density was 11.01 g/m^(2);the average Shannon-Wiener diversity index was 1.57,and the average Pielou index was 0.66.The results of biological assessment of water quality indicated that most of the river sections of the Maotiao River were in a polluted state,and the tributaries were more polluted than the main stream.The results of the Shannon-Wiener diversity index and the BMWP scoring method had certain differences.The results obtained by the BMWP scoring evaluation were generally inferior to the results of the Shannon-Wiener diversity index evaluation.

关 键 词：底栖动物 群落结构 水质生物评价 Shannon-Wiener多样性指数 BMWP记分 长江大保护 猫跳河 

分 类 号：X824[环境科学与工程—环境工程]