| 黄土高原水土保持减沙效益的尺度效应初步分析 |
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| 引用本文： | 师长兴.黄土高原水土保持减沙效益的尺度效应初步分析[J].水土保持通报,2006,26(3):51-54. |
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| 作者姓名： | 师长兴 |
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| 作者单位： | 中国科学院,地理科学与自然资源研究所陆地水循环及地表过程重点实验室,北京,100101 |
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| 摘 要： | 收集了黄土高原64个不同大小流域的水土保持措施减沙效益的资料和研究成果,利用这些资料分析了随着流域尺度的变化黄土高原水土保持措施减沙效益的变化。统计分析结果显示,水土保持措施减沙模数随流域面积没有明显的变化趋势,单位治理面积减沙比与流域面积之间也不存在明显关系。
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| 关 键 词： | 水土保持 产沙模数 减沙 尺度效应 黄土高原 |
| 文章编号： | 1000-288X(2006)03-0051-04 |
| 收稿时间： | 12 17 2004 12:00AM |
| 修稿时间： | 2004年12月17 |
Study of Scale Dependence of Sediment Yield Reduction by Soil Conservation Practices |
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| SHI Changxing.Study of Scale Dependence of Sediment Yield Reduction by Soil Conservation Practices[J].Bulletin of Soil and Water Conservation,2006,26(3):51-54. |
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| Authors: | SHI Changxing |
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| Institution: | Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographical Sciences and .Natural Resources Research, CAS, Beijing 100101, China |
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| Abstract: | For investigating the changes of sediment yield reduction by soil conservation with spatial scale,this study collected data of the areas implementing soil conservation measures and the amounts of sediment yield reduction associated with soil conservation measures for 64 catchments with different sizes in the middle Yellow River.The soil conservation measures in discussion include land terracing,tree and grass planting,land creating behind sediment-checking dams.Results show that the reduction of specific sediment yield due to implementation of soil conservation measures does not present a significant trend of increase or decrease with the increase of catchment size. |
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| Keywords: | soil conservation specific sediment yield sediment yield reduction scale dependence Loess Plateau |
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