| 农田土壤水分预测模型应用研究 |
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| 引用本文： | 申双和 周英. 农田土壤水分预测模型应用研究[J]. 南京气象学院学报, 1992, 15(4): 540-549 |
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| 作者姓名： | 申双和 周英 |
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| 作者单位： | 南京气象学院(申双和)，南京气象学院(周英) |
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| 摘 要： |
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| 关 键 词： | 农田 土襄 水分 预测 数值模拟 |
A STUDY OF THE APPLICATION OF FARMLAND SOIL WATER PREDICTION MODELS |
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| Shen Shuanghe,Zhou Ying Nanjing Institute of Meteorology. A STUDY OF THE APPLICATION OF FARMLAND SOIL WATER PREDICTION MODELS[J]. Journal of Nanjing Institute of Meteorology, 1992, 15(4): 540-549 |
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| Authors: | Shen Shuanghe Zhou Ying Nanjing Institute of Meteorology |
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| Affiliation: | Shen Shuanghe;Zhou Ying Nanjing Institute of Meteorology |
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| Abstract: | A physical model derived from Darcy's Law and the continuity equation and abudget model based on water balance are used to simulate respectively the daily changesin soil water from the jointing to maturing phases for winter wheat grown in Jingyang,Shanxi in 1987 and 1988 and Tianshui, Gansu in 1986 located in the semi-arid zone.Both the models achieve good results as compared with measured values. The physicalmodel has higher accuracy than the budget model for predicting the water content in theupper soil layer. The latter model is more sensitive to the distribution of root,but the e-vapotranspiration predicted is on the high side and the percolation predicted on the lowside. |
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| Keywords: | field soil water content forecast numerical simulation |
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