[1]申楠,王占礼,刘俊娥,等.黄土坡面汇沙对细沟侵蚀的影响与贡献[J].山地学报,2013,(02):194.
　SHEN Nan,WANG Zhanli,LIU June,et al.The Impact and Contribution of Influx of Sediment onto Rill to Rill Erosion on Loess Hillslope[J].Mountain Research,2013,(02):194.
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黄土坡面汇沙对细沟侵蚀的影响与贡献()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2013年02期
页码:
194
栏目:
山地环境
出版日期:
2013-01-01

文章信息/Info

Title:
The Impact and Contribution of Influx of Sediment onto Rill to Rill Erosion on Loess Hillslope
作者:
申楠;王占礼;刘俊娥;杨晓梅;焦念;谭贞学;
1.西北农林科技大学 资源环境学院， 陕西 杨凌 712100；
2.西北农林科技大学 黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西 杨凌 712100；
3.中国科学院水利部水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室，陕西 杨凌 712100；
4.钦州市水土保持监测分站，广西 钦州535000
Author(s):
SHEN Nan;  WANG Zhanli;  LIU Jun’e;  Yang Xiaomei;  JIAO Nian; TAN Zhenxue(199)
1.School of Resources and Environment, Northwest A & F University, Yangling 712100, Shaanxi，China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling 712100, Shaanxi，China; 3.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi，China;
4.Qinzhou Branch Station of Soil and Water Conservation Monitoring, Qinzhou 535000, Guangxi，China
关键词:
黄土坡面; 细沟侵蚀; 组合小区; 汇沙; 径流剪切力
Keywords:
loess hillslope;  rill erosion;  multiplot;  influx of sediment onto rill;  shear stress
分类号:
S157
文献标志码:
A
摘要:
细沟侵蚀是黄土高原坡面极其重要的侵蚀过程之一,汇沙对细沟侵蚀强弱具有重要影响,阐明汇沙对细沟侵蚀的影响与贡献,可以揭示坡面细沟侵蚀过程机理,并为治理坡面水土流失提供科学依据。采用定流量人工放水的组合小区模拟降雨的方法,对不同降雨强度与不同坡度下黄土坡面汇沙对细沟侵蚀的影响及贡献进行了研究,结果表明:细沟上方汇沙、细沟间汇沙、细沟径流剪切力对细沟侵蚀的影响,在不同降雨强度、不同坡度、不同降雨强度及坡度下皆可用三元对数方程描述;细沟上方汇沙、细沟间汇沙、细沟径流剪切力,以及细沟上方汇沙与细沟间汇沙及细沟径流剪切力三者的交互作用对细沟侵蚀的贡献率,在不同降雨强度下分别为13.18%、4.98%、61...
Abstract:
Rill erosion is one of the most important erosion processes on the Loess Plateau. Influx of sediment onto rill has very important effects on rill erosion intensities. Clarifying the impacts and contributions of influx of sediment onto rill to rill erosion can reveal the processes and mechanism of rill erosion, and provide a important scientific basis for controlling soil and water loss on hillslope. With multiplotbased experiments of simulated rainfall and the addition of a steady inflow at the top of the multiplot system, the impacts of influx of sediment onto rill on rill erosion and its contribution on loess hillslope are studied under five different rainfall intensities and five different slopes. The main findings are as follows:impacts of influx of sediment onto rill from rill top, influx of sediment onto rill from interrill, and rill runoff shear stress on rill erosion under different rainfall intensities with same slope, different slopes with same rainfall intensity, and different rainfall intensities and slopes can be described by a ternary logarithmic equation. The contributions of influx of sediment onto rill from rill top, influx of sediment onto rill from interrill, rill runoff shear stress, and the interaction of the three terms to rill erosion are 13.18%, 498%, 612%, and 8.26% under different rainfall intensities, 4.73%, 1.19%, 73.65%, and 5.4% under the different slopes, 10.84%, 0.44%, 65.22%, and 6.97% under different rainfall intensities and slopes respectively.

相似文献/References:

[1]夏卫生,雷廷武,张晴雯,等.细沟侵蚀中泥沙含量及其粘粒流失量的试验[J].山地学报,2003,(05):605.
[2]申楠,王占礼,陈浩,等.黄土坡面细沟水流分离能力[J].山地学报,2015,(02):191.
　SHEN Nan,WANG Zhanli,et al.Soil Detachment Capacity of Rill Flow on Loess Hillslope[J].Mountain Research,2015,(02):191.

备注/Memo

备注/Memo:
收稿日期(Received date)：2012-01-16；改回日期(Accepted) : 2012-02-04。
基金项目（Foundation item）：国家自然科学
基金项目（41171227，40971172），中国科学院重点项目(KZZD-EW-04-03)。[The national Natural Science Foundation of China funded project(41171227，40971172)；the Chinese Academy of Sciences funded major project (KZZD-EW-04-03).]
作者简介（Biography）：申楠（1988-），女（汉族），陕西省渭南市人，硕士研究生，研究方向为土壤侵蚀。[Shen Nan (1988-), female, Weinan，Shaanxi province, master student, research direction：soil erosion.] E-mail：shennan@nwsuaf.edu.cn *通信作者(Corresponding author)：王占礼（1960-），男（汉族），陕西省榆林市人，博士，研究员，博士生导师，主要从事土壤侵蚀过程及预报模型研究。[Wang Zhanli（1960-）,male, Yulin，Shaanxi province, Ph D, professor, Ph D supervisor, mainly engaged in the research on processes and prediction model of soil erosion.]E-mail：zwang@nwsuaf.edu.cn
更新日期/Last Update: 1900-01-01