地理科学

地理科学 ›› 1999, Vol. 19 ›› Issue (5): 428-431.doi: 10.13249/j.cnki.sgs.1999.05.428

• 论文 • 上一篇    下一篇

长江三峡水库兴建后库周地区辐射平衡与地面径流变化之探讨

洪松1, 葛磊2, 吴胜军3, 李晓宇3   

  1. 1. 北京大学城市与环境学系, 北京100871;
    2. 水利部长江水利委员会, 湖北武汉430010;
    3. 湖北大学生态学研究所, 湖北武汉430062
  • 收稿日期:1997-03-21 修回日期:1997-09-03 出版日期:1999-09-20 发布日期:1999-09-20
  • 基金资助:
    湖北省自然科学基金“鄂西三峡水库移民安置区生态环境规划”项目的部分内容

A Discussion About the Changes of Radiation Balance and Surface Runoff in the Reservoir Area After the Three Gorge Project Being Built

HONG Song1, GE Lei2, WU Sheng-jun3, LI Xiao-yu3   

  1. 1. Department of Urban and Environmental Sciences, Peking University, Beijing, 100871;
    2. Yangtze Water Resources Commission, Ministry of Water Resources, Wuhan Hubei 430010;
    3. Institute of Ecology, Hubei University, Wuhan Hubei 430062
  • Received:1997-03-21 Revised:1997-09-03 Online:1999-09-20 Published:1999-09-20

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摘要： 从地球表面水量平衡、热量平衡两个基本方程出发,通过对其中一系列变量在三峡建库前后变化的分析,推导库周地区辐射平衡Rg、蒸发量E、年径流量f 等重要水热因素将会发生的变化,从而可对整个库区环境的演变窥豹一斑。

Abstract: This thesis started from equations of discharge and heat balance on earth surface, and discussed changes of the whole hydrothermal condition in the reservoir area after the Three Gorge Project being built through analysis of a series of variables. The preliminary estimates show that the surface radiation balance in the area along the reservoir will have a increase of 4.2%-6.7%, namely 8.0-12.6?103J/cm2·a, and the surface evaporation capality will also rise by 2.2%-3.9%,namely 12-21 mm/a. But the surface runoff in the reservoir area tend to descend about 8%-10%, mean 45-55 mm/a. In addition, the latent heat exchange and the turbulent heat exchange between earth surface and atmosphere will increase in different extents. The above mentioned conclusion has momentous significance to understand eco-environmental evolution in reservoir area.

中图分类号: 

  • P422.4