J4 ›› 2007, Vol. 25 ›› Issue (2): 67-70.

• 综述 • 上一篇    下一篇

黄河上游水源补给区气候变化及对水资源的影响

李国军李晓媛王振国张胜智   

  1. 甘肃省甘南藏族自治州气象局,甘肃合作747000
  • 收稿日期:2007-01-15 修回日期:2007-05-14 出版日期:2007-06-30 发布日期:2007-06-30
  • 作者简介:李国军(1964一),男,甘肃灵台人,工程师,主要从事短期天气预报与研究工作.E—mail:li~378@yahoo.tom.cn

Climate Chan ge an d Its Impact on W ater Resource in W ater Replenishment RegiOn in Upper Stream of Yellow River

LI Guojun,LI Xiaoyuan,WANG Zhenguo,ZHANG Shengzhi   

  1. Gannan Meteorological Bureau ofGansu Province,Hezuo 747000,China
  • Received:2007-01-15 Revised:2007-05-14 Online:2007-06-30 Published:2007-06-30

摘要:

应用黄河上游重要水源补给区玛曲县气温、降水资料分析得出:气温年际变化呈上升趋势,降水量年际变化呈下降趋势。气候变化导致可能蒸发量增加,可利用水资源量减少。水资源量多项式拟合变化趋势呈2谷1峰波动型,枯水期年际变化的时间尺度成倍延长。

关键词: 玛曲, 气候变化, 可利用水资源量, 水源补给区

Abstract:

By using the data of temperature,rainfall during 1967—2005 and soil water content during 1996—2005 from Maqu County,which is located in the upper stream of the Yelow River and is an important water replenishment region for the Yelow River,the cli-mate change and its impact on water resource there are analyzed .Results show that the annual trend oftemperature is rising but rainfall is declining,and climate change results in the potential evaporation increase and the available water resources decrease.Th e polynomi·al fitting curve ofwater resource presented fluctuation wi出a two—vale an d one—peak.and the time scale ofannual chan ge in low water period prolonged doub led.

Key words: Maqu, climate change, available water resource, water replenishment region

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