【摘要】 在分析洋河水库富营养化发展及现状的基础上,采用营养状态指数法对其营养状况进行综合评价。评价结果表明,洋河水库富营养化日趋严重,已经由1990年的中营养发展到2004年的重度富营养。对富营养化成因进行分析,结果表明内源污染和外源污染是造成洋河水库富营养化的主要原因,其中淀粉废水和地表径流是主要的外污染源。最后根据分析结果提出洋河水库富营养化的防治对策。更多还原

【Abstract】 Through analysis of the development and present state of water eutrophication in Yanghe Reservoir,the water eutrophication was evaluated comprehensively by using trophic status indices.The results show that the eutrophication of Yanghe Reservoir becomes serious gradually and it has changed from the mesotrophication in 1990 to severe eutrophication in 2004.The study on the causes of eutrophication shows that internal pollution sources and external pollution sources are the main causes for the eutrophication in Yanghe Reservoir,especially the starch wastewater and surface runoff.According to the analysis,some countermeasures were proposed to control the eutrophication of water body.更多还原