青海省沙漠现状及形成与发展趋势  

Investigati on on the Present statusof desert and Its Developmental TendencyQinghqi Province

作　　者：李成尊 孙勃 陆锦华[2] 

机构地区：[1]地矿部地质遥感中心 [2]中科院兰州沙漠所

出　　处：《中国沙漠》1990年第4期38-45,共8页Journal of Desert Research

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。Based on the result of the interpretation of remote sensing,the desert in Qinghai province can be diveded into two types of f ormation, 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.

关 键 词：沙漠 沙漠化 青海 遥感 

分 类 号：P931.3[天文地球—自然地理学]