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行带式沙蒿灌丛的防风阻沙效益模拟研究
引用本文:韦立伟,宋翻伶,丁国栋,王翔宇,梁文俊,郭跃. 行带式沙蒿灌丛的防风阻沙效益模拟研究[J]. 安徽农业科学, 2011, 39(18): 11035-11037
作者姓名:韦立伟  宋翻伶  丁国栋  王翔宇  梁文俊  郭跃
作者单位:1. 北京林业大学水土保持学院,水土保持与荒漠化防治教育部重点实验室,北京,100083;宁夏盐池荒漠生态系统定位研究站,北京,100083
2. 宁夏盐池县环境保护和林业局,宁夏,盐池,751500
3. 北京市房山区水务局,北京,102488
基金项目:国家“十一五”攻关项目(2006BAD26B03)
摘    要:[目的]研究不同配置人工模拟行带式黑沙蒿防风阻沙效益的差异,为沙区人工植被建设以及荒漠生态系统的生态恢复提供理论依据。[方法]采用模拟试验的方法,模拟了3种不同配置的沙蒿灌丛,对其剖面风场以及输沙率进行观测。[结果]单行配置防风效能较低,双行和3行配置防风效能较高,且随着风速的增大,3种配置林带的防风效能都呈递减趋势。林带能有效增加粗糙度,在林带后的粗糙度呈递减趋势。从输沙率来看,双行和3行配置也优于单行。单行矮林在其背风面7日内都能减少风蚀,而双行和3行矮林在其背风面10H处都能有效减少输沙率,防控风蚀。[结论]在沙区沙蒿林营造中,生产配置上侧重双行一带的行带式配置,使其疏透度在45%左右,带距在7日~10H为宜。

关 键 词:黑沙蒿  行带式  配置格局  防风效能  粗糙度  输沙率

Simulative Research on the Efficiency of the Belt of Artemisia ordosica Kraschen Shrub Forest on the Resistance to Wind and Sand
WEI Li-wei et al. Simulative Research on the Efficiency of the Belt of Artemisia ordosica Kraschen Shrub Forest on the Resistance to Wind and Sand[J]. Journal of Anhui Agricultural Sciences, 2011, 39(18): 11035-11037
Authors:WEI Li-wei et al
Affiliation:WEI Li-wei et al(Key Laboratory of Soil and Water Conservation and Combating Desertification,Ministry of Education,College of Water and Soil Conservation,Beijing Forestry University,Beijing 100083)
Abstract:[Objective] The theoretical basis of the construction of artificial vegetation and the ecological restoration in the desert ecosystem of sandy region was provided through the research on the difference of the artificially simulative and various belt of Artemisia ordosica Kraschen shrub forests in the resistance to wind and sand.[Method] By means of the method of simulative experiment,the wind at profile and the transportation rate of sand of 3 differences of Artemisia ordosica Kraschen shrub forests was mea...
Keywords:Artemisia ordosica Kraschen  Forest belt  Pattern  Resistance to wind  Roughness  Sediment transport rate  
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