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干旱区地理 ›› 1989, Vol. 12 ›› Issue (2): 50-58.doi: 10.13826/j.cnki.cn65-1103/x.1989.02.008

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气候变化的水文效应

赖祖铭   

  1. 中国科学院兰州冰川冻土研究所
  • 出版日期:1989-06-25 发布日期:2025-12-25

Hydrologic Impacts Owing to Climatic Change

Lai Zuming   

  1. Zhanzhou Institute of Glaciolog and Geocryology, Academia Sinica
  • Published:1989-06-25 Online:2025-12-25

摘要: 本文介绍了全球气候变化对区域水文影响的一些估算方法,分析了欧亚地区近几十年来几个冰川流域的径流变化,结果表明,由于干、热气候的影响,70年代以来整个天山山区冰川消融非常强烈,冰川补给的河流径流量明显增大,而降水补给的河流径流量显著减小。

关键词: 气候变化, 水文效应, 径流

Abstract: As the atmospheric concentration of carbon dioxide and other trace gases increases, changes in global and regional climatic con-ditions will lead to a wide range of hydrologic impacts, including changes in the timing and magnitude of runoff and soid moisture, Some methods for evaluating the regional hydrologic impacts of global climatic changes are presented in this paper.Furthermore, these methods can be combined with state-of-the-art information from general criculation models of the climate and with plausible hypothetical climate-change scenarios to generate information on the water-resource implications of future climatic changes.
In order to assess the climatic variation and to determine the impacts on meltwater from glacier and snow, variations of runoff from several glaciated basins in Eurasia during last 30-40 years are also analysed.It is clear that the effect of dry and hot climate have intensively advanced the ablation of glacier and snow in whole Tianshan Mts since 1970's.Runoff of rivers fed by glaciers increases markedly but that by precipitation decreases.