Research fields and research directions: First, the direction of grassland remote sensing, with remote sensing information and basic grassland information as the main information sources, combined with field grassland monitoring stations, to carry out dynamic monitoring and early warning of grassland resources, grassland degradation, grassland fires and so on. To monitor and evaluate the temporal and spatial distribution of grassland productivity and the balance of grassland and livestock, and serve the management of grassland ecosystem and grassland construction. The second is the protection and utilization of grassland, which studies the formation, distribution and development law of grassland, and studies the macro-decision, theoretical basis, new technology application and optimization model of rational development and utilization of grassland resources from the perspective of protecting ecological environment, improving resource transformation efficiency and promoting sustainable utilization of grassland resources.

Presided over and completed (presided over) 22 topics or projects, including major projects of the National Natural Science Foundation 1; 4 national key sub-projects; 3 Sino-Japanese cooperation projects; Ministerial projects11; 2 projects to promote agriculture through science and technology; There are many technical consulting projects. Published 47 papers in core journals and national journals at home and abroad; Co-authored five books and edited one (published in 2002). Published more than 50 books, including articles and monographs.