A concept of intensity of ecological function of river water has been put forward, and an integrated water quantity and quality evaluation method in combination with eco-environmental water requirements has been developed for a river.

This study evaluated changes in wetland components,spatial pattern and hydro-ecological function of the typical wetlands on the Qinghai-Tibet Plateau on the basis of three sets of remote sensing data (1969,1986 and 2000) and field investigations.

The ecohydrological functions of litter were studied,which include litter storage,annual litterfall and dynamics,water holding capacity,interception effect on rainfall,restraining effect on soil water evaporation,and retarding effect on runoff.

Freezing-thawing rule of seasonal frozen soil and its eco-hydrological function in Zhalong Wetland;

To study the eco-hydrological function of litter and soil, a natural mixed forest of oak(Quercus liaotungensis) and linden(Tilia paucicostata) and a plantation of larch(Larix principis-rupprechtii) in the small watershed of Xiangshuihe in south side of Liupan Mountains of Ningxia Hui Autonomous Region were selected as research stands.

Impact of hydropower development on river ecosystem service:a case study from the Manwan Hydropower Project;

Preliminary study on effects of hydraulic engineering on river ecosystem services;