以洞庭湖水体富营养化监测为最终目的，由此确定了最佳水体遥感提取模型为MNDWI指数模型。
The purpose of monitoring the eutrophication of Dongting lake areas is taken, so the MNDWI model was selected for water body extraction.
藻类是反映水体富营养化最常用的生物监测指标。
Algae are the most frequently used biological monitoring indicators of waters eutrophication.
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