摘要
吉林省西部的天然草场是我国的优质草场之一。近几年来由于受自然因素和人为因素的影响 ,草场面积在不断减少 ,平均年递减 4 5× 1 0 4hm2 ,而且草场的退化程度逐渐加剧 ,重度退化草场大幅度增加 ,产草量降低 ,草场生态环境恶化。通过对不同年代草场资源调查 ,分析了自然和人为因素对草场退化的影响。有针对性的提出了草场综合治理与恢复应采取的政策、牧业管理、生态建设措施。通过对草场的科学利用、合理保护 ,可使退化草场得到改良 ,区域环境向良性发展。
Natural grassland in the west of Jilin province is one of the best grasslands in China. In recent years, however, its ecological environment worsens gradually. For example, degree and area of heavy degenerated grassland increase dramatically; meanwhile, grass yield within this region decreases rapidly. Based on investigation of grassland resources in different periods, influence imposed by natural and human factors upon 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 development within this region be achieved.
出处
《资源科学》
CSSCI
CSCD
北大核心
2002年第2期93-96,共4页
Resources Science
基金
吉林省科技发展计划项目部分成果 (编号:990 30 0 )
关键词
西部草原
生态环境
吉林
草场资源
综合治理
持续发展
Jilin province
Grassland resources
Current Situation
Comprehensive management
Sustainable development
