摘要
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。
As one of the most serious soil erosion areas in China,grassland vegetation is priority for vegetation construction in the Loess Plateau area by its unique geographical conditions and limited water.Grassland vegetation has already contributed a lot to control soil water erosion.Based on the relationships between different parts of grassland vegetation and soil erosion,the present paper drew a conclusion that grassland aboveground parts can weaken rainfall energy and runoff erosion power,and grass roots were able to enhance soil penetrability and soil anti-erodibility by improving soil properties and winding soil mass.In order to provide references for vegetation preventing and controlling soil erosion in Loess Plateau,two aspects of current research progress were summarized including the grassland aboveground part controlling soil erosion power and grass roots enhancing soil anti-erodibility and the exiting problem were discussed.
出处
《草业科学》
CAS
CSCD
北大核心
2015年第1期64-70,共7页
Pratacultural Science
基金
陕西省青年科技新星项目--黄土高原草被控制坡沟系统径流侵蚀动力机制及有效性研究(2014KJXX-52)
霍英东教育基金会高等院校青年教师基金--黄土高原小流域土壤侵蚀动态对气候变化的非线性响应(131025)
陕西师范大学中央高校项目--植被坡面水流水力学特性及对侵蚀输沙的影响(GK201103003)
关键词
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
soil erosion
Loess Plateau
soil water erosion power
soil anti-erodibility
grassland vegetation
