英语翻译本文以2007-2010年仁寿黑龙滩水库的三个监测站位水质的调查数据及相关记录数据为依据,选择高锰酸盐指数（CO

This article take 2007-2010 year Jenshou black Longtan reservoir's three monitor position water quality's cruising data and the related data recording as the basis,the choice permanganate index (CODMn),the total nitrogen (TN),the total phosphorus (TP),the transparency,chlorophyll a (chla) and so on 5 targets goes through another firm as a middleman the appraisal to the reservoir water body eutrophication present situation.The result indicated that this reservoir water body is at the rich nutrition condition.And has studied nitrogen phosphorus the input-output situation,carries on the contrastive analysis according to the input and the output,the search creates the reservoir water body eutrophication the main factor,analyzes the black Longtan reservoir nitrogen phosphorus the input including the east wind ditch,the water surface precipitation,the farmland runoff,the fish culture in net pen,the traveling,periphery the resident and the ground water input and so on.The total nitrogen (T-N) every