摘要
2010年8月对广东省6座水库及其入库河流的大型底栖无脊椎动物群落进行采样调查,并分别利用Goodnight-Whitley指数和BPI指数对水库及入库河流的水质进行评估。结果表明,水库共检出底栖动物13种,优势种为霍甫水丝蚓(Limnodrilushoffmeisteri)、苏氏尾鳃蚓(Branchiura sowerbyi)和八斑多足摇蚊(Polypedilum masudai),种类丰富度变动范围为2～5种,平均密度为277 ind/m2,变动范围160～480 ind/m2。入库河流的种类丰富度和密度均高于水库,共检出底栖动物28种,优势种为苏氏尾鳃蚓、霍甫水丝蚓、花翅前突摇蚊(Procladius choreus)和河蚬(Corbicula fluminea),种类丰富度变动范围为2～7种,底栖动物平均密度为382 ind/m2,变动范围192～816 ind/m2。水质评价结果表明,6座水库的水质状况总体良好,但入库河流均受到不同程度的污染,污染较为严重的黄岗河和黄羌河,其水库汤溪水库和公平水库也产生了污染。
The macroinvertebrates community in six reservoirs and their inflow rivers were investigated in August 2010 in Guangdong Province. Goodnight-Whifley index and BPI index were used to evaluate the reservoir and inflow fiver water quality respectively. Results showed that a total of 13 taxa were collected in reservoirs. The dominant species were Limnodrilus hoffmeisteri, Branchiura sowerbyi and Polypedilum masudai. Taxa richness ranged from 2 to 5 and mean macroinvertebrate density was 277 ind/m2 which ranged from 160 to 480 ind/m2. Both taxa richness and density were higher in inflow rivers than in reservoirs. A total of 28 taxa were collected in inflow rivers, and the community was dominated by Branchiura sowerbyi, Limnodrilus hoffmeisteri, Branchiura sowerbyi and Corbiculafluminea. Taxa richness in rivers ranged from 2 to 7 and mean macroinvertebrate density was 382 ind/m2 which ranged from 192 to 816 ind/m2. Water quality assessment results showed that reservoirs showed good water quality as a whole while all the rivers were polluted. There were pollution in Tangxi and Gongping reservoir whose inflow rivers showed relative heavy pollution.
出处
《生态科学》
CSCD
北大核心
2012年第3期324-329,共6页
Ecological Science
基金
国家重大科技专项(2009ZX07211-009
2008ZX07211-003)
关键词
水库
底栖动物
水质生物评价
reservoirs
macroinvertebrate
water quality bioassessment
作者简介
李斌，男（1985-），硕士研究生，主要从事为环境修复与生态工程研究
通讯作者：杨扬，E-mail：yangyang@sties．org
