摘要
在分析西北地区自然植被地理格局与生态环境建设现状的基础上,讨论了退耕还林还草改善西北地区生态系统状况的作用,认为增加植被覆盖、提高初级生产力和系统稳定性以及将人类活动对生态环境的影响导入良性循环,是实现该地区生态系统健康、生态格局安全和生态过程的连续,是建立西北地区结构合理、功能高效、关系协调的生态安全格局的主要途径。
Based on analysis of the situation in terms of geographical patterns of natural vegetation and ecological environment improvement in the Northwestern China, this paper discussed the function of converting croplands to forest or grass vegetation in order to improve ecosystem status However, the main approach to maintain ecological health, to achieve ecological security and keep ecological process continuously, is to install a well developed vegetation in this area through increase of vegetation coverage and strengthening the elementary productivity and stability of ecosystem,and optimizing human interventions on the eco system as well
出处
《草业科学》
CAS
CSCD
2005年第6期11-15,共5页
Pratacultural Science
关键词
西北
植被恢复重建
生态安全格局
rthwest China
vegetation restoration
ecological security pattern
