辽宁大伙房水库水质及水生生物群落结构的研究

Water quality and community structure of aquatic organisms in Dahuofang Reservoir, Liaoning province

于1979～2000年对大伙房水库6个站点进行了不同季节浮游植物、底栖动物群落特征的生态调查和水化学分析。共发现藻类174种,底栖动物34种。分析了水库水生生物种类组成、数量变化和群落演替。水质生态学综合评价结果表明,大伙房水库水体只受到轻度污染,水质等级为2级,属中-富营养型水平。

The ecological investigation of algae, benthos and water chemistry was conducted at six locations at Dahuofang Reservoir in various seasons from 1979 to 2000. There were 174 species of algae belonging to 8 phyla and 34 species of benthos in the reservoir. The species composition, variation in biomass and their succession were investigated. The results showed that water quality in Dahuofang Reservoir is secondary eutrophication and slightly contaminated, being calssified as Class ⅡStandard of Surface Water.