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退耕还林还草是西北地区生态安全格局构建的主要途径
引用本文:岳淑芳,邸利,窦学诚,白云祥,舒永宏.退耕还林还草是西北地区生态安全格局构建的主要途径[J].草业科学,2005,22(6):11-15.
作者姓名:岳淑芳  邸利  窦学诚  白云祥  舒永宏
作者单位:1. 兰州市土地估价研究所,甘肃,兰州,730000
2. 甘肃农业大学林学院,甘肃,兰州,730070
3. 甘肃农业大学农学院,甘肃,兰州,730070
4. 甘肃省徽县林业局,甘肃,武都,730021
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.

关 键 词:西北  植被恢复重建  生态安全格局
文章编号:1001-0629(2005)06-0011-05

Construction of regional eco-security through rehabilitation of vegetation in Northwest China
YUE Shu-fang,DI Li,DOU Xue-cheng,BAI Yun-xiang,SHU Yong-hong.Construction of regional eco-security through rehabilitation of vegetation in Northwest China[J].Pratacultural Science,2005,22(6):11-15.
Authors:YUE Shu-fang  DI Li  DOU Xue-cheng  BAI Yun-xiang  SHU Yong-hong
Abstract: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
Keywords:rthwest China  vegetation restoration  ecological security pattern
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