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A mathematical model of soil moisture spatial distribution on the hill slopes of the Loess Plateau |
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| Authors: | FU Bojie YANG Zhijian ZHANG Pingwen WANG Yanglin |
| Affiliation: | 1. Department of Systems Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China 2. Department of Mathematics, Peking University, Beijing 100871, China 3. Department of Urban and Environmental Sciences, Peking University, Beijing 100871, China Correspondence should be addressed to Fu Bojie (email: bfu@mail.rcees.ac.cn) |
| Abstract: | Based on important factors that affect soil moisture spatial distribution, such as the slope gradients, land use, vegetation cover, and surface water diffusion characteristics together with field measurements of soil moisture data obtained from the surface soil under different land use structures, a soil moisture spatial distribution model was established. The diffusion degree coefficient of surface water for different vegetations was estimated from soil moisture values obtained from field measurements. The model can be solved using the finite unit method. The soil moisture spatial distribution on the hill slopes in the Loess Plateau were simulated by the model. A comparison of the simulated values with measurement data shows that the model is a good fit. |
| Keywords: | Loess Plateau hill slope soil moisture mathematical model |
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