| 植被结构及其防止土壤侵蚀作用分析 |
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| 引用本文： | 王晗生,刘国彬. 植被结构及其防止土壤侵蚀作用分析[J]. 干旱区资源与环境, 1999, 0(2) |
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| 作者姓名： | 王晗生 刘国彬 |
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| 作者单位： | 中国科学院水利部水土保持研究所 |
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| 基金项目： | 国家“九五”科技攻关项目 |
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| 摘 要： | 本文综合引用水土保持林草植被的有关资料，对植被结构的研究意义及其与土壤侵蚀的关系进行了分析。现有资料表明：黄土区林草植被保持水土的临界盖度约为４０％－６０％，风蚀区植物固沙的临界盖度约为２０％－５０％；黄土区流域控制土壤侵蚀效果最佳的林草覆被率约为４８％。本文最后还对有关问题进行了讨论。
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| 关 键 词： | 黄土高原 植被结构 盖度 土壤侵蚀 |
]ANALYSES ON VEGETATION STRUCTURES AND THEIR CONTROLLING SOIL EROSION |
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| Wang Hansheng Liu Guobin. ]ANALYSES ON VEGETATION STRUCTURES AND THEIR CONTROLLING SOIL EROSION[J]. Journal of Arid Land Resources and Environment, 1999, 0(2) |
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| Authors: | Wang Hansheng Liu Guobin |
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| Abstract: | By comprehensively citing information about vegetations for soil and water conservation,and analyzing on the significance of studing vegetation structures and relationship between them and soil erosion,the results showed the critical cover-degree of vegetation is about 40%-60% for soil and water conservation in the loess Plateau,about 20%-50% for sand fixation in the wind-erosive areas.The optimum cover-degree of vegetation for controlling soil and water loss is about 48%.Also questions related to vegetation and soil erosion were discussed in this paper. |
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| Keywords: | Loess Plateau vegetation structure cover-degree soil erosion. |
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