| 植被对小流域汇流及侵蚀产沙影响研究 |
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| 引用本文： | 秦富仓,余新晓,张满良,姜吉荣. 植被对小流域汇流及侵蚀产沙影响研究[J]. 干旱区资源与环境, 2005, 19(5): 165-168 |
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| 作者姓名： | 秦富仓 余新晓 张满良 姜吉荣 |
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| 作者单位： | 北京林业大学,北京,100083;内蒙古农业大学,呼和浩特,010019;北京林业大学,北京,100083;黄河水土保持天水治理监督局,天水,741000;磴口县林业局巴彦高勒,015000 |
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| 基金项目： | 国家重大基础研究“973”项目资助（2002CB111502）. |
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| 摘 要： | 本文从物理概念出发对小流域产汇流及侵蚀产沙过程进行研究,并结合实例分析了流域内森林植被对产汇流和侵蚀产沙的影响。森林植被的调节径流、防治侵蚀的功能体现在各个层面,林冠及下部枯落层可削减雨滴动能;树干及下部枯落层可削减地表径流流速;林地可改善土壤的渗透性,减少地表径流流量;根系可固持土壤,增加抗蚀力。
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| 关 键 词： | 植被 流域 汇流 侵蚀产沙 |
| 文章编号： | 1003-7578（2005）05-165-04 |
| 收稿时间： | 2004-05-06 |
| 修稿时间： | 2004-05-06 |
Studies on the Impact of Vegetation on Runoff Concentration and Sediment yield in Watershed |
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| QIN Fu-cang,YU Xin-xiao,ZHANG Man-liang,JIANG Ji-rong. Studies on the Impact of Vegetation on Runoff Concentration and Sediment yield in Watershed[J]. Journal of Arid Land Resources and Environment, 2005, 19(5): 165-168 |
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| Authors: | QIN Fu-cang YU Xin-xiao ZHANG Man-liang JIANG Ji-rong |
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| Abstract: | This paper has analyzed the process of watershed runoff and sediment generation based on the physics mechanism, and also discussed the impact of forest vegetation on runoff and sediment yieldof watershed by analyzing the experimental data. The results show that each layers of the forest vegetation have effects on regulating runoffand reducing erosion: the canopy and litters can mitigate the raindrop energy; the tree trunk and litters reduce the velocity of ground runoff; the forested land improve penetration of soil and reduce ground runoff flow; the roots fix soils and increase soils'erosion resistance as well. |
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| Keywords: | vegetation watershed runoff sediment yield |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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