【摘要】 通过使用尼梅罗指数评价数据,以正态分布法表征鄱阳湖湖区3种典型水域(河道水域、过渡水域、滞留水域)整体富营养化程度及分布特征,对湖泊的营养状况进行评价。分析比较结果表明:鄱阳湖水体营养状态因区域不同而呈现不同富营养化状态,其中,河道水域富营养化状态最严重,过渡水域次之,滞留水域最小。就平均状态而言,鄱阳湖水体整体营养状态丰水期处于贫营养状态,枯水期处于中营养状态,富营养状况呈现各入湖河流高于湖区,湖区小于出湖河段的特征。更多还原

【Abstract】 By using Nemerow evaluation index,the eutrophication degree and distribution features in 3 typical water areas(river channel area,transition water area,water detention area) of the Poyang Lake are described with normal distribution method,and the present eutrophication state of the lake is evaluated.The results show that,the eutrophication state of the Poyang Lake is different in different water areas: the eutrophication of river channel area is most serious,followed by the transition water area and water detention area.In general,the Poyang Lake is in poor-eutrophication in wet season and mid-eutrophication in dry season;its distribution features are that eutrophication in the rivers flowing into the lake is more serious than that in the lake body,and eutrophication in the lake is lighter than that in out-reaches of the lake.更多还原