Study on comprehensive cure technique of city water pollution based on watershed scale;

Study on well-posed of wavelet transform method to different watershed scale;

Application of SCS model to hydrological simulation at an agricultural watershed scale

Study on soil nutrient characteristic of tobacco fields with different regional scale and their nutrient management;

Calculation of soil erosion and sediment yield at the regional scale;

Factors influencing Mikania micrantha invasion and distribution at regional scale

Correlation analysis on spatial pattern of land use and soil at catchment scale;

The study summarized partly recent achievements of experiment and research on water source conservation, water use rate improvement on river basin scale as well as water resource distribution in the water-ecology-economy system.