Experimental Study on Changeable Characteristics of Runoff Energy in Hillslope-Gully Slope Erosion System with Different Grass Coverage

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Experimental Study on Changeable Characteristics of Runoff Energy in Hillslope-Gully Slope Erosion System with Different Grass Coverage

更新时间：2024-11-07

- Experimental Study on Changeable Characteristics of Runoff Energy in Hillslope-Gully Slope Erosion System with Different Grass Coverage
- Vol. 19, Issue 5, Pages: 13-17(2005)
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  CLC： S157.1S152.7
- Published：2005
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LI Mian. Experimental Study on Changeable Characteristics of Runoff Energy in Hillslope-Gully Slope Erosion System with Different Grass Coverage[J]. 2005, 19(5): 13-17.
DOI：

LI Mian. Experimental Study on Changeable Characteristics of Runoff Energy in Hillslope-Gully Slope Erosion System with Different Grass Coverage[J]. 2005, 19(5): 13-17. DOI：

摘要

坡面侵蚀是水流能量作用的结果．草本植被对坡面流能量的作用有重要影响．研究坡沟系统坡面草被不同盖度及空间配置下坡面流能量的变化过程与特征．对于揭示草被减蚀作用机理有重要意义。本文利用实验土槽和放水冲刷试验方法．研究了2种流量（3．2L／min和5．2L／min）．坡面5种草被盖度（0，30％，50％．70％和90％）及3种空间配置（坡上部、坡中部、坡下部）下，坡沟系统坡面径流能量的变化过程与特征。结果表明，有草断面比无草断面下的径流动能、势能普遍偏小．变化幅度也较平缓；各断面能耗时间上呈下降一稳定的变化趋势．空间上随着径流流程的增加呈显著增加趋势；坡面流能耗变化过程与径流含沙量变化过程基本一致，裸坡情况下二者关系更为密切。

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Experimental Study on Changeable Characteristics of Runoff Energy in Hillslope-Gully Slope Erosion System with Different Grass Coverage

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