吉林省西部草原生态环境现状与可持续发展.pdfVIP

24 2 Vol.24, o.2 2002 3 RESOURCES SCIE CE Mar.,2002 1, 2 2 3 3 2 3 刘志明 , 晏 明 , 王贵卿 , 孟 华 , 张文哲 , 王春晖 ( 1. 中国科学院长春地理研究所, 长春 130021; 2.吉林省气象科学研究所, 长春 130062; 3.吉林省草原管理总站,长春 130062) :, 4 2 , 415@ 10 hm ,, , , , , , :; ;; ; :S81218;X17114(234) :A : 1007- 7588(2002)02- 0093- 04 ECOLOGICAL ENVIRONMENT OF GRASSLAND IN THE WEST OF JILIN PROVINCE AND ITS SUSTAINABLE DEVELOPMENT 1,2 2 3 3 2 3 LIU Zh-iming , YA Ming , WA G Gu-i qing , ME G Hua , ZHA GWen-zhe , WA G Chun-hui (1. Changchun Institute of Geography , CAS, Changchun 130021, China; 2.Institute of Meteorological Science of Jilin Province, Changchun 130062, China; 3. General stationf or Prairie Management of Jilin Province, Changchun 130062, China) Abstract: atural grassland in the west of Jilin province is one of the best grasslands in China. In recent years, however, its ecological environmentworsensgradually. For example, degree andarea of heavy degen- erated grassland increase dramatically; meanwhile, grassyieldwithinthis region decreasesrapidly. Basedon investigationof grassland resources indifferent periods, influence imposedby natural and humanfactorsupon the ecological environment is examined in this paper. And then, main concern is devoted to comprehensive management of grassland and countermeasures for ecological restoration. It is argued that only by scientific utilization and effective protection of grassland can sustainable