Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Glaciology and Geocryology》 2008-01
Add to Favorite Get Latest Update

Recently Progress in Climate Change Impact on Water Cycles of Cold Regions

SHAO Chun,SHEN Yong-ping,ZHANG Jiao(Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China)  
The statistics indicate that the climate variation becomes more and more extreme,the frequency and intensity of the extreme weather events are ceaselessly rising.The annual record of the extreme climate events is broken unceasingly.This has led to enormous economic loss and casualties all over the world.The climatic changes the water rules,and its changing tendency is a litmus test to the world water resources managers.This article mainly elaborated the impact of climatic change on precipitation,evapotranspiration,runoff,snow and snow cover area,glacier and frozen soil.In recent 100 years,the global precipitation has increased slightly in the undulation sketchy;In Northern Hemisphere,the pan transpiration has assumed gradually reducing tendency;The runoff timing and distribution have changed greatly;The precipitation in form of snow and the snow cover area are more and more few;It is well documented that glaciers are in retreat over most of the world;Besides,with the global warming,permafrost starts to melt,the thickness of the active layer has increased obviously.All extant models have indicated a warmer future world,in order to reduce the vulnerability of the system to the climate change and solve human water resource demands,we can enhance the system adaptability by means of controlling the greenhouse gas emissions,establishing more precise climate forecast models,improving the water resource managers' technical levels etc.
【Fund】: 国家重点基础研究发展计划(973计划)项目(2007CB411507);; 国家自然科学基金项目(40771047);; 中国科学院知识创新工程重要方向项目(KZCX2-YW-127)资助
【CateGory Index】: P339;P467
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved