干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠公路沿线风沙活动的时空分布

Arid

	塔克拉玛干沙漠公路沿线风沙活动的时空分布
其他题名	Spatial-temporal Distribution of Blown Sand Activities Along Taklimakan Desert Highway
	韩致文; 王涛; 董治宝; 吴奇骏; 姚正毅
来源期刊	地理科学
ISSN	1000-0690
出版年	2005
卷号	25 期号:4 页码:455-460
中文摘要	利用塔克拉玛干沙漠公路沿线的肖塘、满参和塔中3个定位观测站1个自然年的监测资料,对以起沙风和输沙强度为表征的风沙活动进行了分析.选取气象站标准高度10 min风速中大于临界起沙风速(≥6.0 m/s)的风,按16方位分别统计不同级别风的次数及其方位,计算输沙量.结果表明,风沙危害的主风向为偏东风,频率范围48%～76%.风沙活动集中在4～9月;从沙漠边缘向腹地风沙活动加强.向沙漠腹地深入,应加大公路风沙危害防护力度.
英文摘要	The Taklimakan Desert highway cuts across the simple barchan and barchan dune chain zone .complex transverse dune ridges zone and complex longitudinal megadune zone. Based on a natural year observation data of three meteorological stations (Xiaotang, Mancan and Tazhong) along the Taklimakan Desert highway, we ana-lyzed the blown sand activities that were characterized by intensity of sand driving wind and intensity of sand transport. We select all the winds with velocity greater than the threshold velocity at the standard height of mete-orological station as the study winds. We count the frequencies and directions of different level winds by 16 di-rections and calculate the sand transport according to Bagnold formula of (} = 5.2 x 10 ~4 ( V - F,)3. The study re-sults show that blown sand disaster causing winds come from the north-east ( NNE, NE, ENE, E) and their fre-quencies ranging from 48% to 76% . On time distribution, the blown sand activities were concentrated in spring and summer, especially during the period of April to August. On the spatial distribution, the intensity of blown sand activities were trending stronger from the edge to center of the Taklimakan Desert. The sand transport can reach 6309.5 kg/(m ? a) and resultant drift direction is 230° -234° at the center of the Taklimakan Desert. So we draw a conclusion that the defending measures must be enhanced in the interior desert.
中文关键词	塔克拉玛干 ; 沙漠公路 ; 起沙风 ; 输沙强度 ; 时空分布
英文关键词	Taklimakan cross-desert highway sand driving wind intensity of sand transport spatial - temporal distribution
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:2023653
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205992
作者单位	中国科学院寒区旱区环境与工程研究所, 沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	韩致文,王涛,董治宝,等. 塔克拉玛干沙漠公路沿线风沙活动的时空分布[J]. 中国科学院西北生态环境资源研究院,2005,25(4):455-460.
APA	韩致文,王涛,董治宝,吴奇骏,&姚正毅.(2005).塔克拉玛干沙漠公路沿线风沙活动的时空分布.地理科学,25(4),455-460.
MLA	韩致文,et al."塔克拉玛干沙漠公路沿线风沙活动的时空分布".地理科学 25.4(2005):455-460.