| 1957—2006年河西走廊中部气候变化对水资源的影响 |
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| 引用本文： | 刘洪兰,白虎志,张俊国,许爱琴.1957—2006年河西走廊中部气候变化对水资源的影响[J].冰川冻土,2010,32(1):183-188. |
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| 作者姓名： | 刘洪兰 白虎志 张俊国 许爱琴 |
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| 作者单位： | 中国气象局,兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室,甘肃,兰州,730020;张掖市气象局,甘肃,张掖,734000;中国气象局,兰州干旱气象研究所,甘肃省干旱气候变化与减灾重点实验室,中国气象局干旱气候变化与减灾重点开放实验室,甘肃,兰州,730020;张掖中学,甘肃,张掖,734000;张掖市气象局,甘肃,张掖,734000 |
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| 基金项目： | 国家自然科学基金项目(40875046);;甘肃省自然基金项目(3ZS051-A25-011)资助 |
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| 摘 要： | 利用河西走廊中部1957—2006年6个气象站的气候资料,对气温、降水的变化特征以及由此引起的水资源的变化进行统计分析.结果表明:年平均气温整体以0.40℃.(10a)-1的速率上升,气温偏高主要是在冬季,春、夏季变化幅度不大.降水量的变化以2.81mm.(10a)-1的速度在递增,1980年代末至1990年代前期降水量出现下降,1990年代后期又开始缓慢增加.气温升高、降水量的增加、蒸发量的减少,意味着该地区气候由暖干向暖湿转变.水资源总量、河川径流量呈缓慢上升趋势,与降水量的变化具有一致性.
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| 关 键 词： | 河西走廊中部 气候变化 水资源 |
Climatic Chang and Its Impact on Water Resources in Central Hexi Corridor of Gansu Province in 1957-2006 |
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| LIU Hong-lan,BAI Hu-zhi,ZHANG Jun-guo,XU Ai-qin.Climatic Chang and Its Impact on Water Resources in Central Hexi Corridor of Gansu Province in 1957-2006[J].Journal of Glaciology and Geocryology,2010,32(1):183-188. |
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| Authors: | LIU Hong-lan BAI Hu-zhi ZHANG Jun-guo XU Ai-qin |
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| Institution: | 1.Key Laboratory of Arid Climatic Changing and Reducing Disaster of Gansu Province;Key Open Laboratory of Arid Climatic Changing and Disaster Reduction of China Meteorological Administration;Lanzhou Institute of Arid Meteorology;China Meteorological Administration;Lanzhou Gansu 730020;China;2.Zhangye Meteorological Bureau;Zhangye Gansu 734000;3.Zhangye Middle School;China |
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| Abstract: | Based on the climate date during 1957-2006 from six weather stations in central Hexi corridor, in this paper, the changes of water resources caused by the changes of temperature and precipitation are mainly analyzed. During the 50 years, temperature rose with an annual average rate of 0.34·(10a)~(-1), mostly in winter, rather than in spring and summer. Meanwhile precipitation increased with an average rate of 2.7 mm·(10a)~(-1). From the end of the 1980s to the beginning of the 1990s, precipitation decreased, since the last of the 1990s, however, it has risen slowly. The air temperature rising, precipitation increasing and evaporation decreasing mean that climate changes from warm-dry to warm-humid, total amount of water resources and surface runoff increase while groundwater runoff decreases obviously. |
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| Keywords: | central Hexi corridor climate variation water resources |
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