贵州干流峡谷型水库——乌江渡水库浮游植物分布及水质现状分析

The Distribution of Phytoplankton and Water Quality Evaluation in Wujiangdu Reservoir,a Canyon-style Reservoir ,Guizhou

于2005年枯水期、丰水期和平水期对贵州典型干流峡谷型水库乌江渡水库进行浮游植物调查和水化学分析。基于浮游植物的群落类型、数量和生物量、污染指示种、水质理化指标及生物多样性指数综合评价,乌江渡水库水质处于富营化状态,基本可达Ⅲ类水质,而且存在明显恶化趋势。

The phytoplankton communities and water quality in Wujiangdu Reservoir, a canyon-style reservoir in Guizhou, in dry season, level season and wet season were investigated in 2005. According to coenotype, cell density , biomass, pollution-indicating species, physical and chemical information of water and species diversity indices, an overall evaluation result of water quality was eutrophication or Grade m by the environmental quality standards for surface water, which indicated the quality was deteriorating gradually