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| 黄土丘陵沟壑区小流域土壤侵蚀及其预报模型研究 | |
| 引用本文： | 张维江,孙保平,郭文峰,李亚军. 黄土丘陵沟壑区小流域土壤侵蚀及其预报模型研究[J]. 中国水土保持, 2004, 0(6): 19-20,35 |
| 作者姓名： | 张维江 孙保平 郭文峰 李亚军 |
| 作者单位： | 1. 宁夏大学,土木与水利工程学院,宁夏,银川,750021;北京林业大学,水土保持学院,北京,100083 2. 北京林业大学,水土保持学院,北京,100083 3. 宁夏回族自治区水利厅,水土保持局,宁夏,银川,750001 4. 西吉县水利水保局,宁夏,西吉,756200 |
| 摘 要： | 在小流域内建立人工径流试验小区和自然坡面径流试验小区,观测天然降雨条件下的土壤侵蚀现象、土壤侵蚀量和小流域出口治沟骨干工程的淤积量,并对小流域土壤侵蚀进行了分类。在特别界定小流域"坡面侵蚀"、"沟道侵蚀"和沟道"重力侵蚀"词语含义的基础上,建立起坡面侵蚀模数和沟道侵蚀模数的预报模型。该侵蚀预报模型具有较高的精度,适用于年降雨量为430mm左右的黄土丘陵沟壑区。 |
| 关 键 词： | 水土保持 小流域 土壤侵蚀 预报模型 黄土丘陵沟壑区 |
| 文章编号： | 1000-0941(2004)06-0019-02 |
Study on Soil Erosion of Small Watersheds in Gullied Rolling Loess Area and Its Predicting Model |
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| ZHANG Wei-jiang. Study on Soil Erosion of Small Watersheds in Gullied Rolling Loess Area and Its Predicting Model[J]. Soil and Water Conservation In China, 2004, 0(6): 19-20,35 | |
| Authors: | ZHANG Wei-jiang |
| Affiliation: | ZHANG Wei-jiang~ |
| Abstract: | To establish artificial runoff test plot and runoff test plot with natural slopes in a small watershed to observe soil erosion, quantity of soil erosion and quantity of siltation retained by key gully projects at the outlet of small watersheds under the natural precipitation condition and classify the soil erosion of small watersheds. To establish a predicting model of slope erosion modulus and gully erosion modulus on the basis of special definition for the meanings of slope erosion, gully erosion and gully gravity erosion. The precision of the predicting model is fairly high and suitable for gullied rolling loess area where the annual precipitation is about 430 mm. |
| Keywords: | soil and water conservation small watershed soil erosion predicting model gullied rolling loess area |
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