| 暴雨条件下沙棘林减水减沙效益研究 |
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| 引用本文： | 郭百平,阎晋民.暴雨条件下沙棘林减水减沙效益研究[J].人民黄河,1997,19(2):26-28,56. |
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| 作者姓名： | 郭百平 阎晋民 |
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| 作者单位： | [1]山西省水土保持研究所 [2]山西省水利厅 |
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| 摘 要： | 造成黄土高原水土流失的降雨主要是短历时暴雨。根据这一特点，利用人工模拟降雨方法研究了短历时暴雨条件下沙棘林的减水减沙效益，以及不同郁闭度对产流产沙过程的影响。结果表明，沙棘林郁闭度越高，减水减沙效益越好。
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| 关 键 词： | 暴雨 减水 减沙 沙棘林 水土流失 |
Study on Sediment and Runoff Reduction Efficiency by Shaji shrub in Rainstorm |
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| Guo Baiping, Wang Zike,et al..Study on Sediment and Runoff Reduction Efficiency by Shaji shrub in Rainstorm[J].Yellow River,1997,19(2):26-28,56. |
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| Authors: | Guo Baiping Wang Zike |
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| Affiliation: | Guo Baiping, Wang Zike, et al. |
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| Abstract: | The rainfall for causing soil and water loss in the Loess Plateau is mainly the storm with short duration. According to the feature mentioned above, the sediment and runoff loss reduction efficiency by Shaji shrub in short duration storms and the influence of different cover degree on runoff production and sediment delivery process are studied by using artificial rainfall simulation method. The output demonstrates that the higher the Shaji shrub cover degree is, the better the runoff and sediment reduction efficiency will be. Under the designed storms, there are 39860m3/km2 of runoff yield and 736. 64t/km2 of sediment erosion respectively in wasteslope, however, the runoff yield and sediment erosion are 4790m3/km2 and 8. 37m3/km2 and 98. 86 % respectively in the slope with Shaji shrub cover degree of 0. 7 which are 87. 98 % and 98. 86 % reduction of that in wasteslope. The effective cover rate for Shaji shrub is decided as 0. 5. |
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| Keywords: | Shaji storm cover degree efficiency of sediment and runoff reduction |
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