| 以土壤缺水量为指标的干旱模型 |
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| 引用本文： | 卞传恂,黄永革,沈思跃,孟云侠.以土壤缺水量为指标的干旱模型[J].水文,2000,20(2):5-10. |
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| 作者姓名： | 卞传恂 黄永革 沈思跃 孟云侠 |
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| 作者单位： | 安徽省水文局,安徽,合肥,230022 |
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| 摘 要： | 本模型以降水、蒸发为输入，以土壤缺水量Ｐs为输出，Ｐs呵较清楚地表述干旱。该模型可用于湿润地区及干旱、半干旱地区。模型已在安徽省试运行，从逐日Ｐs等值线图看，可较 好的反映干旱的地区分布及旱情的发展过程。并运用历史资料分析了４个代表站的３１年逐日Ｐs值，与安徽历史旱情基本吻合。
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| 关 键 词： | 土壤缺水量 干旱模型 流域 土壤蒸发曲线 |
| 文章编号： | 1000-0852(2000)02-0005-06 |
The Drought Model Indexed by the Soil Moisture Deficiency |
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| BIAN Chuan-xun,HUANG Yong-ge,SHEN Si-Yue,MENG Yun-xia.The Drought Model Indexed by the Soil Moisture Deficiency[J].Hydrology,2000,20(2):5-10. |
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| Authors: | BIAN Chuan-xun HUANG Yong-ge SHEN Si-Yue MENG Yun-xia |
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| Abstract: | This drought model is introduced with precipitation,evaporation as input and with soil moisture deficiency Ps as output,which can express drought clearly. The model is widely used in humid, arid and semi-arid regions and has been operated in Anhui Province and is showing dry distribution and development process in area from diurnal Ps isograph. Through diurnal Ps analysis of 31 annual hydrologic data at 4 hydrologic stations, the results achieved identify finely with the history drought of Anhui Province. |
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| Keywords: | soil moisture deficiency drought model basin evaporation curve basin soil permeating curve |
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