| 淹水土壤中氮素运移与转化试验及其数值模拟 |
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| 引用本文： | 冯绍元,张瑜芳,沈荣开,水建高.淹水土壤中氮素运移与转化试验及其数值模拟[J].农业工程学报,1994,10(4):50-56. |
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| 作者姓名： | 冯绍元 张瑜芳 沈荣开 水建高 |
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| 作者单位： | 北京农业工程大学;武汉水利电力大学;武汉水利电力大学;武汉水利电力大学 |
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| 基金项目： | 国家自然科学基金;水利水电基金 |
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| 摘 要： | 在室内试验的基础上,建立了淹水土壤中NH4+—N和NO3-运移转化的耦合数学模型,并对表施于水层中的氮肥(碳铵:NH4HCO3)在饱和土中运移与转化过程进行了数值模拟。结果表明:该试验条件下NH4+—N的硝化作用主要发生于土壤表层1cm左右的范围内。
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| 关 键 词： | 氮素 运移与转化 数值模拟 |
| 收稿时间： | 1994/3/15 0:00:00 |
| 修稿时间： | 1994/8/28 0:00:00 |
The Laboratory Experiment and Numerical Analysis of Nitrogen Transport and Transformation in Flooded Soils |
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| Feng Shaoyuan,Zhang Yufang,Shen Rongkai and Shui Jiangao.The Laboratory Experiment and Numerical Analysis of Nitrogen Transport and Transformation in Flooded Soils[J].Transactions of the Chinese Society of Agricultural Engineering,1994,10(4):50-56. |
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| Authors: | Feng Shaoyuan Zhang Yufang Shen Rongkai and Shui Jiangao |
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| Institution: | Feng Shaoyuan
(Beijing Agricultural Engineering University) Zhang Yufang Shen Rongkai Shui Jiangao
(Wuhan University of Hydraulic and Electric Engineering) |
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| Abstract: | On the basis of laboratory experiments, the coupling mathematical model of N - fertilizer transport and transformation in flooded soils is established and solved by the finite difference method. Calculated values of numerical simulation compared with measured data, the agreement is satisfactory. The mathematical model is also applied for the study of the main factors influencing the process of N-fertilizer transport and transformation. |
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| Keywords: | Nitrogen Transport and transformation Numerical simulation |
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