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中国沙漠 ›› 1990, Vol. 10 ›› Issue (4): 38-45.

• 论文 • 上一篇    下一篇

青海省沙漠现状及形成与发展趋势

李成尊1, 孙勃1, 陆锦华2   

  1. 1. 地矿部地质遥感中心;
    2. 中科院兰州沙漠所
  • 出版日期:1990-12-20 发布日期:1990-12-20

Investigati on on the Present status of desert and Its Developmental Tendency Qinghqi Province

Li Chengzun1, Shun Bo1, Lu Jinghua2   

  1. 1. Remote Sensing Centet of the Ministry of Geology and Mineral Resources;
    2. Institute of Desert Research, Academin Sinica, Lanzhou
  • Online:1990-12-20 Published:1990-12-20

摘要: 本文根据遥感调查的结果,论述了青海省沙漠的类型、面积及分布规律特征。并通过不同时期的遥感图象,研究了青海湖等地区近三十年沙漠化环境的动态变化规律,从自然和人为因素两方面分析探讨了沙漠形成及发展趋势。

Abstract: Based on the result of the interpretation of remote sensing,the desert in Qinghai province can be diveded into two types of formation, fifteen types of shape and three types of activity. After measuring the areas of every type in every county and prefecture this paper expounds the characteristic of shape, distributed laws and desertified environment respectively. From three aspects of geological history,sand source and climate,the natural factors of formation and development of desert were analysed. Through comparing remote sensing image of different time the paper reveals the effects of natural man-made factors on desertified environment and points out its developping tendency:1. The uplift of Qinghai-Tibetan plateau will have a bad influence on the fragile ecological environment in desert area. 2. The tendency of climate beconming dry and dry has been continuing. 3. The effect of human activity on environment is becoming apparent day by day. 4. Desertification will intensify.