湖泊富营养化是湖泊水体在自然因素和人类活动的影响下，逐步由生产力低的贫营养状态向生物生产力较高的富营养状态变化的一种现象。
Entrophication is a phenomenon that lakes change gradually from poor nutrition and less productivity into rich nutrition and high productivity under the effect of anthropogenic activity.
分析研究东营近海海域15个站位水质和浮游生物样品，结果表明东营近海枯水期海水为贫营养和中营养化水平。
Analysis of the water quality and plankton samples of 15 stations in Dongying sea area showed that the sea water was at the poorly or moderately eutrophication in the dry season.
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