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| DOI：10.13522/j.cnki.ggps.2019244 |
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| Characteristics of Soil Water Infiltration in Different Vegetation Cover of Jujube Economic Forest |
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LIU Huanhuan, WANG Gailing, YIN Haishan, HE Runping, CHEN Xi
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1.Institute of Resource and Environment,Shanxi Agricultural University, Taigu 030801, China;2.Institute of Plant Protection, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, China;3.Agricultural Resource and Economy Institute, Shanxi Academy of Agricultural Sciences, Taiyuan 030006, China
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| Abstract: |
| 【Objective】We aimed to study the effects of different vegetation cover on soil water infiltration characteristics of jujube economic forest, to simulate the soil water infiltration process of different vegetation cover and select the optimal model of the study area.【Method】 The soil water infiltration characteristics of jujube economic forest under different vegetation cover were conducted by using the field double-ring infiltration test method.The soil water infiltration process of different vegetation cover areas was stimulated by using Philip model, Horton model and Kostiakov model.【Result】①The soil infiltration rate of different vegetation cover areas showed the initial infiltration rate was the highest, the average infiltration rate being second ,and the stable infiltration rate was the lowest; ②The initial infiltration rate of soil in natural grassland was the largest,while the average infiltration rate and the stable infiltration rate of the soil in the clearing area were the highest, and the initial infiltration rate, the average infiltration rate and the stable infiltration rate of the soil in the clearing area and the natural grass area were significantly different. ③The Horton infiltration model had the best fitting effect on soil infiltration process in different areas. The fitting effect of Philip infiltration model was second, and the Kostiakov infiltration model had the worst fitting effect.【Conclusion】The characteristics of soil water infiltration under different vegetation cover of red jujube economic forest were significantly different. The Horton infiltration model is more suitable for studying the soil water infiltration process of the jujube economic forest in this area. |
| Key words: Jujube economic forest; vegetation cover; water infiltration |
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