| 华北平原地区春季降水渗透深度和“透雨”的农业气象估算方法 |
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| 引用本文： | 陶祖文,裴步祥.华北平原地区春季降水渗透深度和“透雨”的农业气象估算方法[J].气象学报,1983,41(1):97-105. |
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| 作者姓名： | 陶祖文 裴步祥 |
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| 作者单位： | 国家气象局气象科学研究院
(陶祖文)，国家气象局气象科学研究院(裴步祥) |
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| 摘 要： | 本文利用土壤中重力水渗透的模式,提出华北平原降水渗透深度的计算式。根据降水量和降水前的土壤湿度计算渗透深度,其百分误差约为11％,误差的平均值为4.6厘米。 综合作物、土壤、底墒和蒸发(散)四方面的因素,提出了华北平原春季的“透雨”指标。它包括必需的降水量和渗透深度,“透雨”的计算结果与实测资料是相符的。
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| 收稿时间： | 1980/8/26 0:00:00 |
| 修稿时间： | 1982/1/23 0:00:00 |
AN AGROMETEOROLOGICAL METHOD FOR ESTIMATING THE INFILTRATION DEPTH AND SOAKING RAIN IN SPRING FOR NORTH CHINA PLAIN |
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| Tao Zuwen and Pei Buxiang.AN AGROMETEOROLOGICAL METHOD FOR ESTIMATING THE INFILTRATION DEPTH AND SOAKING RAIN IN SPRING FOR NORTH CHINA PLAIN[J].Acta Meteorologica Sinica,1983,41(1):97-105. |
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| Authors: | Tao Zuwen and Pei Buxiang |
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| Institution: | Academy of Meteorological Sciences of National Meteorological Bureau;Academy of Meteorological Sciences of National Meteorological Bureau |
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| Abstract: | Using the conception of the infiltration of gravity moisture, a model for estimating infiltration depth is presented, by means of the rainfall and the soil moisture before rain. Comparison with observations made in four stations shows an error of about 11% and average error of 4.6 centimiters. From four factors (characteristics of the soil, the kind of crop, soil motsture. storage and evapotranspiration) an index for estimating the amount of soaking rain is presented. Here "soaking" means enough raix1fa11 for adequate growth of the major crop concerned and an infiltration depth to provede adequate soil moisture, Results of calculation are tested with actual determinations. |
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