| 唐山地区干旱演变特征分析 |
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| 引用本文： | 张力斐,夏淑密.唐山地区干旱演变特征分析[J].水文,2010,30(1). |
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| 作者姓名： | 张力斐 夏淑密 |
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| 作者单位： | 河北省唐秦水文水资源勘测局,河北,唐山,063000 |
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| 摘 要： | 研究区地处干旱和湿润气候的过渡地带,这一地区导致干旱发生的直接原因是干旱的气候和水资源的短缺,主要就是降水量的偏少.从简单实用角度考虑,本文根据唐山地区1956～2005年的水文和气象资料,采用降水距平、径流系数、她表湿润度指数等指标对唐山地区的干旱演变趋势进行分析,揭示出该地区近50年的干旱演变特征.
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| 关 键 词： | 干旱 降水距平 径流系数 地表湿润度指数 演变特征 唐山地区 |
Analysis of Drought Change in Tangshan Region |
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| ZHANG Li-fei,XIA Shu-mi.Analysis of Drought Change in Tangshan Region[J].Hydrology,2010,30(1). |
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| Authors: | ZHANG Li-fei XIA Shu-mi |
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| Institution: | ZHANG Li-fei,XIA Shu-mi(Tangqin Hydrology , Water Resources Survey Bureau of Hebei Province,Tangshan 063000,China) |
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| Abstract: | The study area is located in a transition zone between arid and humid climate,where the direct cause of leading to drought is the dry climate and shortage of water resources,especially the lack of precipitation.According to the meteorological and hydrological data from 1956 to 2005,this paper analyzed the characteristics of drought change in Tangshan region by using percentage of precipitation anomaly,runoff coefficients and surface humid index. |
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| Keywords: | drought percentage of precipitation anomaly runoff coefficient surface humid index characteristics of evolation Tangshan region |
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