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.