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中文摘要: 本文介绍了三江源地区生态系统退化现状,科学分析了脆弱生态区生态退化的原因及生态过程,提出了三江源区退化生态系统的植被恢复配套技术和有效途径,探讨了区域经济、社会、资源、生态环境相互协调和相互促进的发展道路。
Abstract:The headwaters region of the Yangtze, Yellow, and Lancangjiang rivers is located on the Tibetan plateau with total land area is 366400 km2. However, there are evidences for expanding grassland degradation and soil erosion in the region caused by over grazing and unfavorable climate changes. Integrated management is the most effective approach for regenerating the productivity of degraded pasturelands. Fencing, reseeding, scarification are the common methods for revival of vegetative cover for degraded pastureland. Harnessing of ecological principles and biological processes, the grazing pattern, grazing density, sheep and yaks feedlot fattening, sustainable livestock production system are approached according to serial pilot studies in the region.
keywords: the headwaters region of three rivers ecological degradation integrated treatment sustainable development
文章编号: 中图分类号:X171.1; 文献标志码:
基金项目:
Author Name | Affiliation |
Zhao Xinquan | Northwest Plateau Institute of Biology, CAS, 810001 Xining |
Zhou Huakun | Northwest Plateau Institute of Biology, CAS, 810001 Xining |
引用文本:
赵新全,周华坤.三江源区生态环境退化、恢复治理及其可持续发展[J].中国科学院院刊,2005,(6):37-42.
Zhao Xinquan,Zhou Huakun.Eco-Environmental Degradation Vegetation Regeneration and Sustainable Development in the Headwaters of Three Rivers on Tibetan Plateau[J].Bulletin of Chinese Academy of Sciences,2005,(6):37-42.
赵新全,周华坤.三江源区生态环境退化、恢复治理及其可持续发展[J].中国科学院院刊,2005,(6):37-42.
Zhao Xinquan,Zhou Huakun.Eco-Environmental Degradation Vegetation Regeneration and Sustainable Development in the Headwaters of Three Rivers on Tibetan Plateau[J].Bulletin of Chinese Academy of Sciences,2005,(6):37-42.