| 大同干旱原因初探 |
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| 引用本文： | 李腊平,杨淑华,冉宇辉,王和平,梁进秋.大同干旱原因初探[J].科学之友,2009(1):159-160. |
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| 作者姓名： | 李腊平 杨淑华 冉宇辉 王和平 梁进秋 |
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| 作者单位： | 山西省大同地区气象局; |
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| 摘 要： | 文章针对大同地区对农业造成主要危害的春季及初夏阶段干旱的成因和干旱的环流形势进行了分析。研究结果表明，导致大同地区干旱的根本原因是降水量与蒸发量之间的不平衡。由于环流背景、地形影响等原因造成大同地区降水量偏少。并且由于气温升高，造成了蒸发量加大，这是引起近年来大同地区干旱日趋严重的主要原因。
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| 关 键 词： | 干旱 气候因子 环流背景 |
Restudy of Reasons for Drought in Datong |
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| Li Laping,Yang Shuhua,Ran Yuhui,Wang Heping,Liang jinqiu.Restudy of Reasons for Drought in Datong[J].Friend of Science Amateurs,2009(1):159-160. |
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| Authors: | Li Laping Yang Shuhua Ran Yuhui Wang Heping Liang jinqiu |
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| Institution: | Li Laping, Yang Shuhua, Ran Yuhui, Wang Heping, Liang jinqiu |
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| Abstract: | The paper investigates the reasons and circulation situation in Spring and early Summer which endanger the agriculture in Datong. Our results show that the unbalance between rainfall and evaporation is the underlying cause. In addition to the factors such as circulation and landform that result in lesser rainfall compared with other districts, rising temperature bring about increasing evapo-ration. These two facts are the main reasons why the drought is heavier in recent years in Datong. |
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| Keywords: | drought climate factors circulation patterns |
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