西部草地退化的原因分析与生态恢复措施探讨
Grassland degradation and ecological restoration in Western China
龙瑞军 1董世魁 2胡自治3
作者信息
- 1. 中国科学院西北高原生物研究所,青海,西宁,810001;甘肃农业大学,草业学院,甘肃,兰州,73007
- 2. 北京师范大学,环境学院,北京,100875
- 3. 甘肃农业大学,草业学院,甘肃,兰州,73007
- 折叠
摘要
通过分析西部草地退化的原因,提出了退化草地的生态恢复方略.研究表明:脆弱的生态环境是西部草地退化的自然内营力,人为干扰和不合理利用是西部草地退化的主要驱动力,气候变暖变干是加速西部草地退化的辅助外营力;草地改良是轻度退化草地生态恢复的主要途径,草地封育是中度退化草地生态恢复的主要措施,人工草地建植是重度和极度退化草地生态恢复的主要手段.
Abstract
The causes of grassland degradation in Western China and the ecological restoration measures were discussed in this paper. The preliminary conclusions are as follows: Fragile ecological environment is internally the secondary agent, while human activities such as disturbance and unreasonable utilization were the major driving forces for grassland degradation. Climate changes like warming and drying are also somewhat externally pushing the degradation on. Grassland improvement, grassland fencing and establishment of artificial grassland are the feasible measures of ecological restoration for light, medium and heavy degraded grassland respectively.
关键词
西部地区/草地/退化/生态恢复Key words
Western China/grassland/degradation/ecological restoration引用本文复制引用
基金项目
中国科学院"百人计划"()
国家自然科学基金(30371021)
出版年
2005
国家科技期刊平台
NSTL
维普
万方数据