Abstract
通过对洱海富营养化成因因子分析,初步探讨了洱海在中营养水平暴发蓝藻水华的原因,认为洱海富营养化不仅与营养盐的积累有关,而且与环境因子、生物因子密切相关,三者共同作用导致了洱海呈现富营养化的特征.并分析了洱海所面临的主要环境问题,提出防治洱海富营养化的对策和建议;Erhai Lake known as a bright pearl on Yunnan Plateau the second largest plateau lake in Yunnan is located in the central part of Dali prefecture. In 1996 blue agal bloom was first observed in Erhai Lake which showed that Erhai Lake had undergone overwhelming eutrophication.The possible causes of eutrophication in Erhai Lake were analysed in detail. Investigations revealed that the blue algal bloom was on the mid-trophic status indicating that nutrient accumulation was not the only factor. Some environmental and biological changes were observed especially in 1990s due much to the human activities interruption. Finally, some countermeasures for eutrophication control are put forward.
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