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| 草篱对坡耕地水土流失的影响 | |
| 引用本文： | 黄传伟,牛德奎,黄顶,武菊英,V.Sardo.草篱对坡耕地水土流失的影响[J].水土保持学报,2008,22(6). |
| 作者姓名： | 黄传伟 牛德奎 黄顶 武菊英 V.Sardo |
| 作者单位： | 1. 江西农业大学,国土资源与环境学院,南昌,330045;北京市农林科学院北京草业与环境研究发展中心,北京,100097 2. 江西农业大学,国土资源与环境学院,南昌,330045 3. 北京市农林科学院北京草业与环境研究发展中心,北京,100097 4. 意大利卡塔尼亚大学,农学院,卡塔尼亚,5-95123 |
| 基金项目： | 中-意政府间科技合作专项基金，农业部社会公益研究项目，北京市农委农业科技示范项目 |
| 摘 要： | 在华北地区采用人工模拟降雨的方法研究了狼尾草和野古草两种人工草篱在不同雨强(22,36,63 mm/h)和不同坡度(5%,10%,15%,20%)条件下对坡耕地水土流失的影响。结果表明:野古草草篱可减少7%~37%的地表径流和49%~63%土壤侵蚀,狼尾草草篱可减少30%~72%的地表径流和69%~89%的土壤侵蚀,数据显示两种草篱均能减少坡耕地地表径流和土壤侵蚀,且狼尾草草篱的水土保持作用明显好于野古草草篱;多元回归分析结果表明,地表径流量和土壤侵蚀量与草篱、坡度和降雨强度均呈显著相关,其中草篱带是影响坡耕地水土流失的主要因子。 |
| 关 键 词： | 草篱 坡耕地 地表径流 土壤侵蚀 |
Effects of Grass Hedgerows on Runoff and Soil Erosion on Slope Land |
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| HUANG Chuan-wei,NIU De-kui,HUANG Ding,WU Ju-ying,V.Sardo.Effects of Grass Hedgerows on Runoff and Soil Erosion on Slope Land[J].Journal of Soil and Water Conservation,2008,22(6). | |
| Authors: | HUANG Chuan-wei NIU De-kui HUANG Ding WU Ju-ying VSardo |
| Institution: | HUANG Chuan-wei1,2,NIU De-kui1,HUANG Ding2,WU Ju-ying2,V.Sardo3 |
| Abstract: | The soil and water conservation effects of Pennisetum alopecuroide and Arundinella hirta grass hedgerows were studied by simulating rainfall under different rain intensity(22,36,63 mm/h) and slope gradients(5%,10%,15%,20%).The results showed that the runoff and sediments of the plots with Arundinella hirta hedgerows decreased by 7% to 37% and 49% to 63% respectively,and the runoff and sediments of the plots with Pennisetum alopecuroide hedgerows decreased 30% to 72% and 69% to 89% respectively.It is indicated that the runoff and soil erosion were significant reduced by Arundinella hirta and Pennisetum alopecuroide grass hedgerows,and the decreased degree of Pennisetum alopecuroide hedgerow was higher than Arundinella hirta.In addition,grass hedgerow,rain intensity and slope gradients were significant correlated to runoff and soil erosion by multiple regressions.Among those factors,the grass hedgerows were the dominated factor that control runoff and soil erosion. |
| Keywords: | grass hedgerow slope land runoff soil erosion |
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