三峡库区重庆段富营养化物质氮磷污染负荷比较研究

笔者选取三峡库区城市生活污水、农业农药化肥面源、牲畜养殖排泄物等3种污染源,估算了三者的氮、磷污染负荷,以探究库区水环境污染防治的优先控制对象.经过分析可得知,在所考虑的3种污染源中,牲畜养殖产生的氮、磷污染负荷已经居于首位,是三峡库区水质恶化的首要因子.

Comparative study of the pollution loading of nourishing substances--nitrogen and phosphorus in Chongqing segment of the Three Gorges Reservoir

Selecting three pollution sources in the Three Gorges Reservoir: sewage, pesticide and fertilizer non-point from agriculture and wastes of livestock, the paper evaluates the pollution loading of nitrogen and phosphorus, in order to investigate the primary administrable objects in preventing and minifying pollution of water environment in the Three Gorges Reservoir. On the basis of careful and scientific analysis, the paper draws a conclusion that among the three pollution sources, livestock have produced most of the pollution loading of nitrogen and phosphorus and have become the major cause for deteriorating the quality of water in The Three Gorges Reservoir.