干旱区生态环境知识资源中心(Arid): 乌兰布和沙漠东北缘人工梭梭林防风效能分析

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	乌兰布和沙漠东北缘人工梭梭林防风效能分析
其他题名	Windbreak Effectiveness of Haloxylon Ammodendron on Northeast Edge of Ulan Buh Desert
	李鹏 1; 高永1 ; 赵青 2; 韩彦隆 1; 丁延龙 1; 党晓宏 1
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2017
卷号	37 期号:5 页码:34-39
中文摘要	[目的]测定乌兰布和沙漠东北缘不同林龄各坡位的风速,揭示梭梭林防风效能随林龄的变化规律以及与梭梭空间构型的关系。[方法]以乌兰布和沙漠东北缘种植3,5和8a的人工梭梭林为研究对象,通过测定林内及CK不同坡位距地表10,20,50,100,200cm高度处风速,对比不同年限梭梭林的防风效能。[结果]随着林龄的增加,梭梭林对近地表风速减弱作用增强;同一坡位下,3a梭梭林防风效能主要作用在0100cm高度内,防风效能为48.19%,100200cm高度内风速迅速恢复。5,8a梭梭林对0 200cm高度范围均有很好的防护作用,防风效能分别为69.72%,71.93%,二者间减弱效果差异不明显。相关分析显示梭梭林空间构型与防风效能显著相关,梭梭盖度、高度、冠幅与防风效能的相关性分别达到0.935,0.930,0.942。[结论]3a梭梭林迎风坡底、背风坡的防风效能优于迎风坡中、迎风坡顶,5,8a梭梭林与之相反。
英文摘要	[Objective]Wind speeds at different slope positions of Haloxylon Ammodendron forest were investigated on the northeast edge of Ulan Buh desert,in order to reveal the variation of windbreak effectiveness of Haloxylon ammodendron with plantation age and spatial pattern.[Methods]Forests of H.ammodendronat 3a,5a and 8a plantation ages were selected as research objects.The wind speeds at 10cm,20cm,50cm,100cm,200cm heights above ground were measured respectively in the bottom,middle and top of windward slope and bottom of leeward slope for windbreak effectiveness analyzing.[Results]The wind speed near ground surface declined with the increase of plantation ages.Windbreak effectiveness of 3years’shrub was mainly found in 0100cm height,the averaged value was 48.19% .At 100200cm height,wind speed rebounded to the CK value quickly.Good windbreak effect were found both in 5years and 8years forests at height 0200cm,and their windbreak efficiency were 69.72% and 71.93% respectively. Correlation analysis showed that there existed a significant correlation between plantation pattern and windbreak effect.The correlation coefficients between windbreak effect and forest coverage,height and crown width were 0.935,0.930,0.942respectively.[Conclusion]Windbreak effects in the bottom of windward slope and leeward slope were better than those in the middle and top of windward slope of 3years forest.It was contrary for the forests having 5years and 8years plantation ages.
中文关键词	防风效能 ; 地表粗糙度 ; 风速廓线 ; 人工梭梭林 ; 乌兰布和沙漠
英文关键词	windbreak efficiency surface roughness wind speed profile artificial Haloxylon ammodendron forest Ulan Buh desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:6114358
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236658
作者单位	1.内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010018, 中国; 2.内蒙古农业大学草原与资源环境学院, 呼和浩特, 内蒙古 010018, 中国
推荐引用方式 GB/T 7714	李鹏,高永,赵青,等. 乌兰布和沙漠东北缘人工梭梭林防风效能分析[J]. 内蒙古农业大学,2017,37(5):34-39.
APA	李鹏,高永,赵青,韩彦隆,丁延龙,&党晓宏.(2017).乌兰布和沙漠东北缘人工梭梭林防风效能分析.水土保持通报,37(5),34-39.
MLA	李鹏,et al."乌兰布和沙漠东北缘人工梭梭林防风效能分析".水土保持通报 37.5(2017):34-39.