干旱区生态环境知识资源中心(Arid): 布古里沙漠部分地区风沙环境特征分析

Arid

	布古里沙漠部分地区风沙环境特征分析
其他题名	Characteristics of blow sands environment in Buguli Desert
	周向玲 1; 俞胜清 1; 阿布都米基提 2; 刘皑国 3
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2013
卷号	36 期号:5 页码:795-802
中文摘要	布古里沙漠位于喀什绿洲和叶尔羌河绿洲之间,具有独特的地貌特征和风沙环境特征。通过对布古里沙漠部分地区的气象资料分析和野外实地风沙观测,对其风沙环境特征进行了分析。结果表明:布古里沙漠的沙粒平均粒径是0.16 mm,起沙时间集中在每年的4~9月,风向主要是西北风和东北风,偏西北风略强;在2m高处测量的裸露沙面起动风速的是3.0 m/s,植被覆盖率为7%,起动风速为5.2 m/s,植被覆盖率为14%,起动风速为6.8 m/s;当平均风速为6.7 m/s时,气流输运沙子主要在近地表面0~10 cm,,风沙流中含沙量随垂直高度呈指数衰减,给出了风沙流的含沙量随垂直高度分布的相关方程和参数。
英文摘要	Located between Kashgar oasis and Yarkand Oasis, whose area is approximately 34.3 x 104 hm2 (in the range of 38°27’12"-39° 14’48"N, 76°23’9"-77°24’13"E), the Buguli Desert has several unique topographical features and aeolian environment characteristics. According to the analysis of Yuepuhu Meteorological Observatory, data observed from some areas of the Buguli desert, on the condition of 11.4 m-altitude the wind speed up to 6 m/s, the wind characteristics were analyzed by means of the statistical method in the Buguli Desert. Collecting sand sample from the Buguli desert(77°1’14"E, 39°2’29"N), the grain size characteristics of sand were analyzed. For field observations and measures of threshold velocity of drifting sand in sandstorm, vertical lattice sand collector was used to collect the sediment load of sand flow and the structural characteristics of drifting sand studied. The several preliminary conclusions were presented as follows: most of sandstorms occur from April to September, the wind direction is mainly northwest and northeast and the west-northwest wind is a little stronger, average particle size of sand in the Buguli Desert is 0.162 mm. The threshold velocity of drifting sand at 2 m high on the bare sand surface is 3.0 m/s, which is much smaller than that of sand surface covered by vegetation(5.2 m/s), the vegetation coverage rate is only of 7%. When the vegetation coverage rate is up to 14%, the threshold velocity of drifting sand is up to 6.8 m/s. When the average wind speed reaches 6.7 m/s, the pneumatic transportation sands are all close to the ground (about 0-10 cm high) and sand stream sediment concentration decays exponentially with the vertical height increase. A related vertical distribution equation and parameter of sand stream sediment concentration of drifting sand was.put out.
中文关键词	布古里沙漠 ; 风沙环境 ; 起沙风速 ; 输沙量
英文关键词	Buguli Desert blown sand environment threshold velocity of sand-driving wind sand transport
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:4960922
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229545
作者单位	1.喀什师范学院物理系, 喀什, 新疆 844000, 中国; 2.喀什地区林业局, 喀什, 新疆 844000, 中国; 3.喀什地区气象局, 喀什, 新疆 844000, 中国
推荐引用方式 GB/T 7714	周向玲,俞胜清,阿布都米基提,等. 布古里沙漠部分地区风沙环境特征分析[J],2013,36(5):795-802.
APA	周向玲,俞胜清,阿布都米基提,&刘皑国.(2013).布古里沙漠部分地区风沙环境特征分析.干旱区地理,36(5),795-802.
MLA	周向玲,et al."布古里沙漠部分地区风沙环境特征分析".干旱区地理 36.5(2013):795-802.