Through the analysis of water quality data for multi-years in stem river and tributary rivers in TGP reservoir area,the water quality variation before and after impoundment of TGP is analyzed.

• 通过对三峡库区干支流水文断面蓄水前后多年水质资料进行整理分析,分析了蓄水前后库区河流水质变化趋势。