摘要
在讨论近百年来气候变化对亚洲干旱地区内陆湖泊的影响及其湖泊响应的基础上。探讨了降水与气温变化对湖泊的影响;通过湖泊水量平衡计算阐述湖泊水位变化的原因。同时,分析了湖盆的物理形态与湖泊对气候变化响应的关系,获得了若干重要的结论。
The climate in mid-latitude zone of the Northern Hemisphere has shown an tendency to get warm and dry since the beginning of this century. Due to such climatic change, most inland lakes fed mainly by precipitation have the change tendency of water level fall, and area shrinkage; only few lakes fed by glaciers have the tendency of expansion. By means of analysing the influence of precipitation and air temperatute change on lakes, it is found that the precipitation has a positive effect, namely, precipitation change is positively correlated with lake water level variation; while air temperatute has a negative effect. In addition, most lakes are sensitive to precipitation. And most lakes are in a state of the deficit of lake water volume for a long time, which is the reason to cause lake water level fall. The analysis of the relationsip between the lake basin shape and the response of lakes to climatic change shows that the lakes with shallow basins are sensitive to climatic change.
出处
《地理科学》
CSSCI
CSCD
北大核心
1993年第3期212-219,共8页
Scientia Geographica Sinica
基金
国家自然科学基金
关键词
气候变化
湖泊
水量平衡
湖泊响应
Climatic change
Water budget of lake
Response of lake
