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地球科学进展  2005, Vol. 20 Issue (1): 74-080    DOI: 10.11867/j.issn.1001-8166.2005.01.0074
综述与评述     
黄土高原草本植被水土保持作用研究进展
李勉1,2,姚文艺1,李占斌2,3
1.水利部黄委会黄河水利科学研究院,河南 郑州 450003;
2.西安理工大学,陕西 西安 710048;
3.中国科学院、水利部水土保持研究所,陕西 杨凌 712100
Progress of the Effect of  Grassland Vegetation for Conserving Soil and Water on Loess Plateau
LI Mian1,2,YAO Wenyi1,LI Zhanbin2,3
1. Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission and Ministry of Water Resources, Zhengzhou 450003, China;
2.Xi'an University of Technology, Xi'an 710048, China; 
3. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China
 全文: PDF(166 KB)  
摘要:

草本植被具有积极的保持水土的作用,在黄土高原生态环境建设中具有不可替代的作用。在系统分析黄土高原草本植被保土减蚀作用研究的过去与现状的基础上,归纳并总结了草被覆盖度与水土流失量、草被植物与地表径流系数、草被植物地下根系与土壤抗冲性及抗蚀性等方面的最新研究进展,并针对各方面存在的问题以及今后有待深入研究的问题进行了探讨。

关键词: 黄土高原草本植被水土保持    
Abstract:

Grassland vegetation plays active and important role in conserving soil and water, particularly in the eco-environment construction on Loess Plateau. On the basis of reviewing and analyzing the past and present situation of the effect of grassland vegetation for conserving soil and water, the relationships between vegetation coverage and soil and water loss, between vegetation and runoff coefficients, the improvement of root system of grassland vegetation on anti-scourability and anti-erodibility of soil were induced and summarized. The existed problems including the impact of grass coverage on runoff resistance characteristics, the maximum capacity of grass in conserving soil and water, the mechanism of grass in conserving soil and water, the best position of grass distribution on sloping surface and the impact degree of grass coverage on gully erosion when the grass resumed on the sloping surface were discussed. Some blanks existed in the present research field, including the impact of dead grass roots on soil organic matter content, shear stress and the water stability of soil aggregate, the quantitative calculation of benefit of grass in conserving soil and water are pointed out. Also the future directions of research in these fields were discussed, so that the role of grassland vegetation in conserving soil and water can be evaluated scientifically and provide some references for the present and future eco-environment construction in this area.

Key words: Loess Plateau    Grassland vegetation    The soil and water conservation
收稿日期: 2003-07-24 出版日期: 2005-01-25
:  S157    
基金资助:

国家自然科学基金、水利部黄委会黄河研究联合基金项目“基于气候地貌植被耦合的黄河中游侵蚀过程”(编号:50239080)资助.

通讯作者: 李勉     E-mail: hnli-mian@163.com
作者简介: 李勉(1968-),男,河南焦作人,工程师,主要从事土壤侵蚀与水土保持研究. E-mail: hnli-mian@163.com
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引用本文:

李勉;姚文艺;李占斌. 黄土高原草本植被水土保持作用研究进展[J]. 地球科学进展, 2005, 20(1): 74-080.

LI Mian,YAO Wenyi,LI Zhanbin. Progress of the Effect of  Grassland Vegetation for Conserving Soil and Water on Loess Plateau. Advances in Earth Science, 2005, 20(1): 74-080.

链接本文:

http://www.adearth.ac.cn/CN/10.11867/j.issn.1001-8166.2005.01.0074        http://www.adearth.ac.cn/CN/Y2005/V20/I1/74

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