干旱区生态环境知识资源中心(Arid): 塔克拉玛干沙漠风沙活动强度特征

Arid

	塔克拉玛干沙漠风沙活动强度特征
其他题名	The intensity of sand-drift activities in Taklimakan Desert
	俎瑞平; 张克存; 屈建军
来源期刊	地理研究
ISSN	1000-0585
出版年	2005
卷号	24 期号:5 页码:699-707
中文摘要	通过风资料的统计和计算,对塔克拉玛于沙漠风沙活动强度特征进行了系统研究.结果表明,塔克拉玛干沙漠年平均风速较小,在沙漠内部年平均风速与温度变化呈现"风热同步"现象;有效起沙风作用时间存在明显区域差异,随着风速等级的增加,其出现的频率相应减少,基本上都集中在6.1～10.0m/s之间;输沙势和最大可能输沙量,除若羌地区外,整个沙漠属于低风能环境,且存在很大区域差异,对输沙贡献最大的风速以9.0～11.0m/s为主.
英文摘要	The intensity of sand-drift activities is the important theoretic base for both stud-ying the formation and evolution of aeolian geomorphology and carrying out the sand-dam-age control measures. Based on statistics and calculations of wind data, this paper studied the intensities of the sand-drift of Taklimakan Desert and drawn some preliminary conclu-sions as follows; (D Except Ruoqiang district, the whole Taklimakan Desert belongs to low-energy environment and the drift potential in most areas is less than 200VU. <2) With the increase of wind velocity, its frequency decreases gradually, so the most effective sand-moving winds range from 6. lm/s to 10. Om/s, but the most contributors to sand flux con-centrate between 9. 0 m/s and 11.0 m/s. (3) The intensity of sand-drift activities has great temporal and spatial variations. As seasons concerned, the sand-drift activity is the stron-gest during spring and summer and is the weakest in winter, and the autumn lies between them. However, in the interior of the desert there is a phenomenon called as "wind-tem-perature synchronization", that is, the monthly mean temperature and wind velocity get their maximum values during June and July. On the fringe of the desert, the maximum temperature occurs in June and July, while the maximum wind velocity in April and May. According to the calculated results of drift potential and sand flux, the intensity of sand-drift activities is stronger in the central and eastern parts than that of western, southern and southwestern parts. Although this study has got some results, there is still some important work to carry out in future. At first, to give a rational explanation of the temporal and spatial variations of the intensity of sand-drift activities, in combination with the circulation patterns at dif-ferent elevations. Secondly, to give a detailed explanation of the "wind-temperature syn-chronization" phenomenon through scientific experiments. And finally, to integrate the in-tensity of sand-drift activities with the degree of sand dune activities, so as to provide more effective base for sand-damage control measures.
中文关键词	平均风速 ; 起沙风速 ; 输沙强度 ; 塔克拉玛干沙漠
英文关键词	mean wind velocity effective sand-moving winds drift potential sand-trans-portation intensity Taklimakan Desert
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:2085048
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/2XILL650/206017
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	俎瑞平,张克存,屈建军. 塔克拉玛干沙漠风沙活动强度特征[J]. 中国科学院西北生态环境资源研究院,2005,24(5):699-707.
APA	俎瑞平,张克存,&屈建军.(2005).塔克拉玛干沙漠风沙活动强度特征.地理研究,24(5),699-707.
MLA	俎瑞平,et al."塔克拉玛干沙漠风沙活动强度特征".地理研究 24.5(2005):699-707.