Based on the systematic study and analysis of the assessments methods of river water quality and the water quality monitoring of Shuimo river valley in Urumqi in three years, the gray decision making-comprehensive index assessment method was developed after the deep analysis on the traditional gray decision-making assessment method and comprehensive ind.

On the basis of field investigation and former researches,35 typical debris flow gullies were found out,which threat the local residents,vistors,farmlands,electric power stations,water resource facilities,roads,cableways and other tourism equiments along Moxi river,Sichuan province,Southwest China.

Water Balance of the SWAT Model and Its Application in the Suomo Basin;

Land use change and related environmental status in Wushuihe River Basin of West Hunan Province;

Wushuihe river basin is the major region of the modern eco-economic corridor of Huaihua-Guiyang, and will play an important role in promoting the social and economic development of Huaihua City.

An Analysis on Land Use and Land Cover Change of the Xinshui River Valley with RS and GIS Approach;

Based on principles of eco economic regionalization of watershed, and the characteristics of typical example of Xinshuihe watershed in western Shanxi province, the index system including 19 indexes under three categories have been constructed in the study.

Taking Xinshuihe watershed in the west of Shanxi Province as a typical example,the construction background of eco-economic forest system of the watershed was introduced in this paper.