| 兴宁县石马河流域土壤侵蚀类型 |
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| 引用本文： | 朱世清,卢家诚,李定强.兴宁县石马河流域土壤侵蚀类型[J].水土保持通报,1990,10(1):1-7. |
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| 作者姓名： | 朱世清 卢家诚 李定强 |
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| 作者单位： | 广东省土壤研究所;广东省土壤研究所;广东省土壤研究所 |
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| 摘 要： | 本文通过定点观测研究,根据侵蚀力类型与地貌形态,将该地土壤侵蚀划分为:面状侵蚀、沟状侵蚀和崩岗侵蚀。一、面状侵蚀为:由雨滴打击地面、紊动地面径流产生的击溅侵蚀。由于地形和植物等的影响。片蚀实以细沟状侵蚀为主,并通过水量平衡方程、植被和产沙关系,对径流小区水量平衡,植被对片蚀的影响,小区产流、产沙状况作了探讨。二、沟状侵蚀为坡面和崩岗壁面集流作用的结果。三、流水和重力共同作用产生崩岗侵蚀。本文对崩岗侵蚀中面状流水作用区,重力-流水作用区,流水搬运-沉积区的发育过程,以及泥沙冲淤变化作了分析论述。
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| 关 键 词： | 土壤侵蚀 类型 石马河流域 兴宁县 |
Some Soil Erosion Types in Shima Watershed of Xingning County of Guangdong Province |
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| Zhu Shiqing,Lu Jiacheng and Li Dingqiang.Some Soil Erosion Types in Shima Watershed of Xingning County of Guangdong Province[J].Bulletin of Soil and Water Conservation,1990,10(1):1-7. |
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| Authors: | Zhu Shiqing Lu Jiacheng and Li Dingqiang |
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| Institution: | Guangdong Institute of Soil Institute;Guangdong Institute of Soil Institute;Guangdong Institute of Soil Institute |
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| Abstract: | According to erosivity and landform, soil erosions are divided into sheet erosion, gully erosion and gravity gully erosion. 1. Sheet erosion is the erosion caused by rain drop and overland flow. Because of the influence of landform and vegetation, sheet erosion mainly is the rill erosion. We use the equation of water balance and the relationship between vegetation and sediment yield are used to research the water balance on runoff plot, the influence of vegetation on sheet erosion, and sediment and runoff yield on plot; 2. Gully erosion is caused by concentrated flow coming from slope land and cliff; 3. Gravity gully is caused by mixed effect of gravity and runoff. In this paper we divided the gravity gully into three parts: Sheet flow effect part, gravity-runoff effect part, and transport-deposit part. |
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