三峡库区水土流失状况及防治对策

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

三峡库区水土流失是长江下游洪涝灾害的直接原因,同时也危及整个长江流域的可持续发展。针对造成三峡库区水土流失的主要因素,以经济发展观和可持续发展观为指导思想,提出开展森林生态系统恢复、发展生态农业将是治理三峡库区水土流失和生态环境转变的主要任务,使三峡库区区域经济走上一条人口、经济、社会和环境相互协调,可持续发展的道路,对三峡库区生态环境的好转和可持续发展具有重要意义。

The Total-Phosphor（TP） level and the phosphorus pollution status of Three-gorges Reservoir in recent years were analyzed, and the results showed that TP became one of the restrict factors affecting the water quality of Three-gorges Reservoir, and the pollution of the branches was more serious than that of the main flowing, Furthermore, the sources of phosphor of Three-gorges Reservoir were analyzed, and the results indicated that most of phosphor came 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 were put forward.