干旱区生态环境知识资源中心(Arid): 塔中地区近地层风沙流的结构特征

Arid

	塔中地区近地层风沙流的结构特征
其他题名	Structural Characteristics of Near Surface Wind Blown Sand in Central Tarim Basin
	康永德; 杨兴华; 何清; 杨帆; 霍文; 艾力·买买提明
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2017
卷号	37 期号:3 页码:195-199
中文摘要	[目的]分析特定高度的风沙流结构,阐明其风沙流运动规律,为防沙治沙提供理论依据。[方法]采用全方位微梯度集沙仪和风速仪,收集2014年7月至2014年8月风沙流输沙样,通过对近地层085 mm风沙流输沙率、风速进行分析。[结果]输沙率与风速的最佳拟合关系为幂函数,相关系数为0.968 7。随风速的增大,风沙流输沙率主要集中在035 mm,0-5和1535 mm百分含量基本呈上升的趋势,515和3585 mm百分含量基本呈下降的趋势。[结论]风沙流运动是一种贴近地面沙物质的搬运过程,随风速的增大,输沙量越来越集中在035 mm范围内。因此,采取各种措施改变近地表层的风状况及风沙流结构就能有效地削弱风沙活动的强度。
英文摘要	[Objective] To analyze the structure of wind blown sand at a specific height, in order to clarify the disciplinarian of wind blown sand,and provide the theoretical basis for preventing and controlling desertification in central Tarim Basin. [Methods] Omni-directional microinverse sand trap and anemometer were used to collect sand transport sample of wind blown sand from July to August in 2014 and wind-sand transport rate, wind speed in the near surface layer (085 mm) were analyzed. [Results] The most fitting relationship between sand transport rate and wind speed was power function, the correlation coefficient was 0.9687. Along with the increase of wind speed, sand transport rate mainly concentrate on 035 mm layer, meanwhile, it showed ascending trend in 05 mm and 1535 mm layers, and descending trend in 515 mm and 3585 mm layers. [Conclusion] Wind blown sand movement is the process of sand sediment transport in the near surface layer, and sand sediment discharge more and more concentrated on the range from 0 mm to 35 mm with the increase of wind speed. Thus, it requires taking various measures to change the state of near earth surface wind blown sand structure and meanwhile which can effectively weaken the strength of the sandstorm activities.
中文关键词	近地层 ; 风沙流结构 ; 输沙率 ; 塔中地区
英文关键词	near-strata wind blown sand structure sediment transport rate central Tarim Basin
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:6023663
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236632
作者单位	中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国
推荐引用方式 GB/T 7714	康永德,杨兴华,何清,等. 塔中地区近地层风沙流的结构特征[J]. 中国气象局乌鲁木齐沙漠气象研究所,2017,37(3):195-199.
APA	康永德,杨兴华,何清,杨帆,霍文,&艾力·买买提明.(2017).塔中地区近地层风沙流的结构特征.水土保持通报,37(3),195-199.
MLA	康永德,et al."塔中地区近地层风沙流的结构特征".水土保持通报 37.3(2017):195-199.