New model for projection pursuit dynamic cluster and its application to classifying natural grasslands;

Analysis of time series spectrum feature parameters derived fromdominant natural grasslands in the region around Qinghai lake;

Evaluation of grassland ecosystem services in Xilin River basin;

Development of the Database and Information Management System of Poisonous and Noxious Plants in Grassland in Southeast of Qinghai-Tibet Plateau;

Discussion on the countermeasures and techniques of grassland protection in Northwest China;

A Study of Rangeland Productive Potential and Limiting Factors in Inner Mongolia Autonomous Region;

Data of representative grassland ecology during 1987-2004 and meteorological data during 1961-2004 were used in analysis of rangeland eco-environment change situation in water head region and Qinghai lake region, integrated to satellite remote sensing and social investigation data.

On basis of open-air survey materials of 298 plots,894 description and output examination spots,5960 point examination spots,study was done on the plant characteristic and community s characteristic on the natural rangeland of Chongli county of Hebei in the controlling Sand source areas around Beijing and Tianjing.

Researches on judging model for reasonable utilization of rangelands;

The studies were carried on the regrowth yield, quantitative characters of vegetative propagation and sexual reproduction of Old World bluestem (Bothriochloa ischaemum) population in Shanxi rangelands.

Soil moisture dynamic of natural meadow and its impacts on forage biomass in Qinghai Lake region