Characteristics of water source regions of the Huangshui Watershed and measures for their protection;

Politic managerial system of Han ethnic society in the Huangshui watershed during early Ming dynasty;

To draw water from Datong river into Huangshui river is a largescale project to transfer water cross several basins, which is mainly used to solve water shortage of Huangshui watershed and has remarkable significance for sustainable economic development of Qinghai province, ecoenvironmental improvement of Huangshui watershed and ecoenvironmental protection of the Yellow river headstream region.

Based on the theory of landform erosion circulation and Hyosometric(area-altitude)analysis of erosion topography,MapGIS was used in the research of landform evolution in Huangshui valley.

The soil physical chemistry character and the quantity of microbe were analyzed to study on soil microbe ecological distribution of Huangshui valley in Qinghai province.

Soil germs were separated and culutured by different oil type of Huangshui valley and different ecologic environment.

The Primary Analysis of the Water Resources of the Huangshui Basin of Qinghai Province;

The Effect of the Comprehensive Program of Small Basin for the Huangshui Basin Sustainable Development;

Researches on sustainable utilization of water resources of Huangshui River basin;

Study on Applicability of Swat in Huangshui River Basin;

Major Problems and Countermeasures of the Sustainable Development in the Huangshui Watershed in Qinhai Province;

Study on the ecological basic discharge in the section of Xining to Minhe of the main stream of Huangshui River;