不同植被类型的坡面径流侵蚀产沙试验研究

于国强; 李占斌; 李鹏; 张霞; 陈磊; 贾莲莲

不同植被类型的坡面径流侵蚀产沙试验研究

1.
西安理工大学西北水资源与环境生态教育部重点实验室, 陕西, 西安, 710048;
2.
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;
3.
陕西省环境科学研究设计院, 陕西, 西安, 710054

基金项目: 国家自然科学基金资助项目(40771124);西安理工大学优秀博士学位论文基金资助项目(106-210911)

详细信息

作者简介:
于国强(1979- ),男,内蒙古包头人,博士研究生,从事土壤侵蚀与水土保持研究.E- mail:yuguoqiang23@sina.com

中图分类号: S157.1

Effects of vegetation types on hillslope runoff-erosion and sediment yield

1.
Key Lab of Northwest Water Resources and Environment Ecology of MOE Xi'an University of Technology, Xi'an 710048, China;
2.
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, China;
3.
Research and Design Institute of Environm ental Science of Shaanxi Province, Xi'an, 710054, China

Funds: The study is financially supported by the National Natrual Science Foundation of China(No.40771124)and the Research Fund for Excellent PhD Dissertation of Xi'an University of Technology(No.106-210911).

摘要: 利用野外模拟降雨试验,研究不同植被类型的侵蚀产沙、径流、地表糙度和入渗规律以及相关关系。结果表明,植被对水沙调控作用大小依次为:植物根系,整个坡面植被,坡面下部植被和坡面上部植被。林草地具有蓄水减沙的水土保持措施功效,该机制通过植物根系对水沙的调控作用实现;草地具有直接拦沙的水土保持功效,该机制通过地表植被对水沙的调控作用体现。累计产沙量随累计径流量呈幂函数递增趋势,具有很好的相关性;坡面径流产沙过程分为发育期、活跃期和稳定期3个阶段。植被覆盖度越大,地表糙度变化越小。
- 土壤侵蚀 /
- 植被类型 /
- 模拟降雨 /
- 坡面径流 /
- 试验研究
Abstract: A expermient study was conducted to explore the effect of vegetation types on hillslope runoff, erosion, sediment yield,surface roughness and infiltration,as well as the interrelation among these elements. Results reveal that the effectiveness of vegetation regulating on hillslope runoff and sediment yield is in the folowing order:the plant root, the fully vegetated hillslope surface,the vegetation cover at the lower end of hillslope,and the vegetation cover at the upper end of hillslope. The forest-grassland regulates water storage and sediment yield through its rich root networks.Sedimentation retaining is directly achieved by the surface vegetation of grasslands.The cumulative sediment yield and the cumulative runoff are found to be exponentialy correlated.There are three stages of developing,active and stable in the development of hillslope runoff and sediment yield.The richer the vegetation coverage is,the less the surface roughness is.The result is useful for understanding of the runoff generation process at a catchment scale and provides reliable experimental in formation for the model development.
- soil erosion /
- vegetation type /
- artificial rain fall /
- hillslope runoff /
- experimentation

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不同植被类型的坡面径流侵蚀产沙试验研究

作者简介:
于国强(1979- ),男,内蒙古包头人,博士研究生,从事土壤侵蚀与水土保持研究.E- mail:yuguoqiang23@sina.com

Effects of vegetation types on hillslope runoff-erosion and sediment yield

计量

不同植被类型的坡面径流侵蚀产沙试验研究

1. 西安理工大学西北水资源与环境生态教育部重点实验室, 陕西, 西安, 710048;

2. 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;

3. 陕西省环境科学研究设计院, 陕西, 西安, 710054

作者简介:
于国强(1979- ),男,内蒙古包头人,博士研究生,从事土壤侵蚀与水土保持研究.E- mail:yuguoqiang23@sina.com

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Effects of vegetation types on hillslope runoff-erosion and sediment yield

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留言板

不同植被类型的坡面径流侵蚀产沙试验研究

作者简介: 于国强(1979- ),男,内蒙古包头人,博士研究生,从事土壤侵蚀与水土保持研究.E- mail:yuguoqiang23@sina.com

Effects of vegetation types on hillslope runoff-erosion and sediment yield

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不同植被类型的坡面径流侵蚀产沙试验研究

1. 西安理工大学西北水资源与环境生态教育部重点实验室, 陕西, 西安, 710048; 2. 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; 3. 陕西省环境科学研究设计院, 陕西, 西安, 710054

作者简介: 于国强(1979- ),男,内蒙古包头人,博士研究生,从事土壤侵蚀与水土保持研究.E- mail:yuguoqiang23@sina.com

English Abstract

Effects of vegetation types on hillslope runoff-erosion and sediment yield

全文HTML

目录

作者简介:
于国强(1979- ),男,内蒙古包头人,博士研究生,从事土壤侵蚀与水土保持研究.E- mail:yuguoqiang23@sina.com

作者简介:
于国强(1979- ),男,内蒙古包头人,博士研究生,从事土壤侵蚀与水土保持研究.E- mail:yuguoqiang23@sina.com