三峡库区磷污染现状、来源及控制对策的初步分析

分析了近几年三峡库区总磷水平和磷污染现状,结果表明,总磷已经成为三峡库区水质的限制因子之一,库区的次级河流磷污染较三江干流严重;进一步分析了三峡库区磷的来源,表明其主要来源于背景入流,其次是库区范围的面源污染;针对磷的来源,提出了磷污染控制的对策措施。

Preliminary Analysis of the Current Situation,Source and the Countermeasures of Phosphorus Pollution Three-gorges Reservoir

The Total-Phosphor(TP) level and the phosphorus pollution status of Three-gorges Reservoir in recent years are analyzed,the results show that TP has become one of the restrict factors of the water quality of Three-gorges Reservoir,and the pollution of the branches is more serious than that of the stemflow.Furthermore,the sources of phosphor of Three-gorges Reservoir are analyzed,and the results indicate that most of phosphor comes from the inflow of upper reach,and next the non-point sources around the region of Three-gorges Reservoir.And finally,based the sources of phosphor of Three-gorges Reservoir,some countermeasures are put forward.