摘要
黄河源头地区位于青藏高原东部腹地,地处北纬33°30′～35°40′、东经95°25′～99°25′,海拔高度多在4300～4800m之间,气候具有典型的高原大陆性气候的特点。结合20余年来对黄河源区天然草场的调查研究和实践以及对其现状的基本认识,着重分析了自然因素和人为活动引起天然草场变化的途径。结果认为,黄河源区的天然草场虽然有所旱化,但并没有像普遍认为的那样严重,更没有到几近崩溃的边缘,而且这种变化主要是自然因素引起的。最后,针对性地提出了本区天然草场保护、利用、建设和持续发展的措施以及需要深入研究的问题。
The source area of the Yellow River is situated at the hinterland of eastern Qinhai_Tibetan Plateau.It is between 33°30′～35°40′N,95°25′～99°25′E longitude. The area with altitudes ranging from 4300 to 4800 m.The climate features are the type with the alpine and continent.Investigation and study on the natural grassland of 25 years were analyzed and the elementary knowledge into present condition of the source area of the Yellow River was discussed.The changing ways of natural grassland by the natural factors and human activities was analyzed.The results showed that dry grassland,the natural grassland of Yellow River changed but the situation was not very serious,and the change was lead mainly by the natural factors.Further the problem of protection,construction,further development be considered in the must.
出处
《中国草地》
CSCD
2003年第5期58-64,共7页
Grassland of China
基金
中国科学院生物区系分类特别支持费标本馆项目
关键词
黄河源区
天然草场
保护
建设
利用
持续发展
The source area of Yellow River
Natural grassland
Protection
Construction
