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草业科学  2015 

黄土高原地区草地植被调控土壤水蚀机理的研究进展

DOI: 10.11829\j.issn.1001-0629.2014-0285, PP. 64-70

Keywords: 土壤水蚀,黄土高原,土壤水蚀动力,土壤抗侵蚀能力,草地植被

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Abstract:

?作为我国水土流失最为严重的地区之一,黄土高原地区独特的地理环境条件和有限的水资源要求该区的林草植被建设以草地植被为主,草地植被在控制土壤水蚀方面已取得了重大进展。本研究根据草地植被地上和地下部分与土壤侵蚀的关系,分析得出,草地植被地上部分能够削弱雨滴击溅动力,减小坡面径流冲刷能力;根系可改善土壤结构,提高土壤入渗能力,增强土壤抗侵蚀性能。从草地植被地上部分对土壤水蚀动力的影响,以及根系增强土壤抗侵蚀性能两个主要方面归纳总结了当前的研究进展,并针对研究中存在的一些亟待解决的问题进行了探讨,以期为更好地利用植被防治土壤侵蚀提供参考。

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