| 黄土高原侵蚀产沙与高含沙水流空间分异对比分析 |
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| 引用本文： | LIAO Jian-hua,李丹勋,王兴奎,许炯心,阎云霞.黄土高原侵蚀产沙与高含沙水流空间分异对比分析[J].自然资源学报,2010,25(1):100-111. |
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| 作者姓名： | LIAO Jian-hua 李丹勋 王兴奎 许炯心 阎云霞 |
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| 作者单位： | 1.江西师范大学地理与环境学院,鄱阳湖湿地与流域研究教育部重点实验室,南昌 330022；2.清华大学水利水电工程系,水沙科学与水利水电工程国家重点实验室,北京 100084；3.中国科学院地理科学与资源研究所,中国科学院陆地水循环及地表过程重点实验室,北京 100101 |
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| 基金项目： | 科技部科研项目，国家科技支撑计划，科技支撑项目，中德国际合作，国家自然科学基金 |
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| 摘 要： | 论文研究了黄土高原侵蚀产沙、高含沙水流的空间分布特征,并对比分析了两者空间分布的异同。结果表明:黄土高原高含沙水流高发区、侵蚀产沙高值区呈带状分布,大致为东北—西南向,带状区域中包括三个高峰区;黄土高原降雨量、NDVI等值线的空间分布方向与侵蚀产沙带及高含沙水流高发区延伸方向平行,侵蚀产沙带及高含沙水流高发区基本位于200~600 mm降雨量及NDVI值为0.15~0.25范围内,当降雨量达到400 mm及NDVI为0.17时侵蚀产沙达到峰值,而当降雨量为400 mm及NDVI为0.2时,高含沙水流达到峰值;影响因素对侵蚀产沙、高含沙水流发生的作用规律的一致性,决定了黄土高原侵蚀产沙与高含沙水流分布的相似性,而侵蚀产沙、高含沙水流对影响因素响应程度的差异,是两者空间分布差异的重要原因。
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| 关 键 词： | 侵蚀产沙 高含沙水流 空间分异 黄土高原 |
Comparative Analysis of Spatial Distribution between the Specific Sediment Yield and the Hyperconcentrated Flow Frequency in the Loess Plateau |
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| LIAO Jian-hua,LI Dan-xun,WANG Xing-kui,XU Jiong-xin,YAN Yun-xia.Comparative Analysis of Spatial Distribution between the Specific Sediment Yield and the Hyperconcentrated Flow Frequency in the Loess Plateau[J].Journal of Natural Resources,2010,25(1):100-111. |
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| Authors: | LIAO Jian-hua LI Dan-xun WANG Xing-kui XU Jiong-xin YAN Yun-xia |
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| Institution: | LIAO Jian-hua1,2,LI Dan-xun2,WANG Xing-kui2,XU Jiong-xin3,YAN Yun-xia3(1.The Geography , Environment School of Jiangxi Normal University,Key Laboratory Poyang Lake Wetl, , Watershed Research,Ministry of Education,Nanchang 330022,China,2.State Key Laboratory of Hydroscience , Engineering,Department Hydraulic Engineering,Tsinghua University,Beijing 100084,3.Key Laboratory of Water Cycle , Related L, Surface Processes,Institute of Geographic Sciences , Natural Resources Research,CAS,Beijin... |
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| Abstract: | Based on datum of the specific sediment yield,hyperconcentrated flow frequency,precipitation,NDVI and loess thickness from the Loess Plateau,the spatial distribution of the specific sediment yield and the hyperconcentrated flow frequency was explored.It was found that the peak district of erosion and hyperconcentrated flow frequency showed themselves as a strip,and the direction was northeast-southwest.There were three high-value centers in the strip.The specific sediment yield,hyperconcentrated flow freque... |
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| Keywords: | specific sediment yield hyperconcentrated flow spatial distribution Loess Plateau |
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