The project of 'grain for green', to restore woodland and grass by retreating from slopefarmland, as a fundamental measure of eeo-environmental rehabili
This paper examines the experimental study on influence ofmaterial component to non linear relation between sediment yield and drainage network development comp
Based on the continuous monitoring data of hydrology and water quality in the period from 1972 to 1997, the responses of hydro-environment system to melt water