洋河水库浮游植物群落组成分析与水质评价  

Analysis of Phytoplankton Community Composition and Water Quality Evaluation in Yanghe Reservoir

作　　者：宋立钧 郝桂玲[2] 杜迎欣 李凤彬 周云龙[3] 李文奇[2] 

机构地区：[1]秦皇岛市引青管理局,河北秦皇岛066001 [2]中国水利水电科学研究院水环境研究所,北京100038 [3]北京师范大学,北京100875

出　　处：《南水北调与水利科技》2011年第5期63-67,共5页South-to-North Water Transfers and Water Science & Technology

摘　　要：通过2006年和2009年对洋河水库浮游植物群落结构进行的调查,明确了洋河水库浮游植物群落组成及分布特征,利用种类多样性指数对水体营养状态进行了评价。结果表明,2006年浮游植物检出7门,43属,48种;2009年检出7门,51属,62种。两年中洋河水库共发现浮游植物7门,60属,78种。水库年均细胞密度差距较大,2006年为4 347×104 cell/L;2009年为1 331×104 cell/L。优势种群组成上基本相似,都是绿藻、蓝藻和硅藻型,其中,微囊藻是主要的优势种群。2006年微囊藻占优势时间贯穿全年,且数量多;2009年仅在7月-10月形成优势种,且数量较少。应用Margalef多样性指数法和Menkinick多样性指数法对洋河水库水质进行评价,结果显示,2006年水质为富营养型,2009年为中-富营养型。The community structures of phytoplankton in Yanghe Reservoir were investigated in 2006 and 2009. Community composition and distribution characteristics of phytoplankton were observed in Yanghe Reservoir and the trophic status was assessed by the species diversity index. The results showed that 7 Phylums, 43 genera and 48 species in 2006, and 7 Phylums, 51 genera, and 62 species in 2009 were observed. In these two years, 7 Phylums, 60 genera, and 78 species were observed. The difference of annual mean cell densities was high, which was 4 347 × 10^4 cell/L in 2006, but reached 1 331× 10^4 cell/L in 2009. The dominant species were the green alga, blue alga and diatom. Among them, microcystis were dominant species. As dominant species, microcystis with more biomass lasted throughout the year of 2006 ,while it became dominant species only from July to October with less biomass in 2009. The results of the diversity assessment by Margalef and Menkinick indices indicated that the Yanghe Reservoir was eutrophication in 2006 and moderate-eutrophication in 2009.

关 键 词：洋河水库 浮游植物 优势种类 富营养化 生物学评价 多样性指数 

分 类 号：X321[环境科学与工程—环境工程]