干旱区生态环境知识资源中心(Arid): 高寒沙区沙障固沙效益与生态功能观测研究

Arid

	高寒沙区沙障固沙效益与生态功能观测研究
其他题名	Field Measurements of Sand-barrier Benefits and Ecological Functions in Sandy Lands of Qinghai-Tibet Plateau
	王学全 1; 卢琦1 ; 杨恒华 2; 杨德福 2; 赵雪彬 2
ISSN	1009-2242
出版年	2009
卷号	23 期号:3 页码:38-41
中文摘要	采用样地调查法对共和盆地设置的沙障进行连续3 a风积风蚀以及土壤水分观测.结果表明,粘土沙障取材廉价方便,保水、抗风蚀性能强,是适合高寒沙区的较理想的沙障,同时在沙丘坡度4%～12%之间容易形成水蚀沟,最大水蚀沟密度达到14%,破坏沙障的整体稳定性;麦草方格沙障施工简单,防护期较短,由于高寒沙区麦草资源匮乏,推广使用受到限制;近年来小区试验的尼龙网格沙障风蚀沙埋严重,防护效果并不理想.
英文摘要	Sand-barrier is the main engineering measures for vegetation restoration in sand dunes. Various types of sand-barriers play different effective roles in stabilizing sands. So the research on the ecological functions and sand control of sand-barriers has a great importance on the desertification controlling. In this paper, based on 3 consecutive years field measurement of erosion, deposition and water content in preventing system at sand control experimental area in Gonghe basion, sand-barrier benefits and ecological functions are discussed. Results show that the clay and gravel barrier has the advantages for its less cost and convenient planting, best fixing-sand capability and water-holding, except its disadvantage of rill and gully erosion on the slope between 4%～12% of sand dunes which reduce the projects stability, the maxim channel density up is to 14%. Wheat or rice straws are convenient for planting the checkerboards and sand barriers while with the shorter survival period and scarce resources in Qinghai-Tibet Plateau. Sand barriers made of nylon nets have been tested in recent years with undesirable results as its weak function to prevent the wind erosion and sand burying.
中文关键词	沙障 ; 防护效益 ; 青藏高原
英文关键词	sand barriers sand protecting efficiency Qinghai-Tibet Plateau
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3640136
来源机构	中国林业科学研究院林业研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224187
作者单位	1.中国林业科学研究院林业研究所, 国家林业局林木培育重点实验室, 北京 100091, 中国; 2.青海省治沙试验站, 共和, 青海 813005, 中国
推荐引用方式 GB/T 7714	王学全,卢琦,杨恒华,等. 高寒沙区沙障固沙效益与生态功能观测研究[J]. 中国林业科学研究院林业研究所,2009,23(3):38-41.
APA	王学全,卢琦,杨恒华,杨德福,&赵雪彬.(2009).高寒沙区沙障固沙效益与生态功能观测研究.,23(3),38-41.
MLA	王学全,et al."高寒沙区沙障固沙效益与生态功能观测研究".23.3(2009):38-41.