摘要
对湘西花垣河软体动物多样性与重金属污染状况进行了调查.在花垣河8个监测断面中,除S1、S3、S8的软体动物丰富度指数(DMA)与Shannon-Wiener多样性指数(H′)分别介于0.264 3-2.493 7和0.676 5-2.412 3外,S2、S4、S5、S7、S8五个断面的软体动物丰富度和多样性指数均为零.Mn、Cd、Pb、Cu、Zn在花垣河8个监测断面的河水中都能检测到,其中Mn、Cd含量严重超出GB的Ⅴ类水标准.软体动物多样性监测与理化监测的结果均表明,花垣河水体已经受到严重重金属污染.
The diversities of molluscas and the pollution of heavy metals in the Xiangxi Huayuan River were investigated. The species richness indexes （DMA） and Shannon - Wiener diversity indexes （H＇） of molluscs at S1, S3, S8 were 0. 264 3 - 2. 493 7 and 0.676 5 - 2.412 3, respectively. The DMA and H＇ at the other 5 sections were zero. Mn, Cd,Pb、Cu、Zn were identified in the water,the concentrantions of Mn and Cd were severe exceed the standard of limits of V class water of GB. The results of the diversities of molluscas and the physico - chemical monitoring suggested that the water of the Huayuan River had been polluted by heavy metals severity.
出处
《南华大学学报（自然科学版）》
2009年第2期78-82,共5页
Journal of University of South China：Science and Technology
基金
湖南省教育厅基金资助项目(08C765)
南华大学博士启动基金资助项目(5-03-XJQ-03-044)
关键词
花垣河
软体动物
多样性
水质评价
Huayuan River
molluscas
biodiversity
evaluation of water quality
