干旱区生态环境知识资源中心(Arid): Changes in wind activity from 1957 to 2011 and their possible influence on aeolian desertification in northern China

Arid

	Changes in wind activity from 1957 to 2011 and their possible influence on aeolian desertification in northern China
	Li Jinchang; Liu Haixia; Su Zhizhu; Fan Xiaohui
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2015
卷号	7 期号:6 页码:755-764
英文摘要	Wind activity is proved to have significant impacts on aeolian desertification. Clarifying the fluctuations and change trend of wind velocity is important for understanding their influence on aeolian desertification. In this study, we used a dataset of wind velocities collected from 93 meteorological stations across northern China from 1957 to 2011 to analyze the changes in wind activity during this period. We tested the monotonic and step (abrupt) trends for annual and seasonal data of mean wind velocity by using Mann-Kendall and Mann-Whitney tests, respectively. The results indicated that the annual mean wind velocity decreased by 0.83 m/s from 1957 to 2011. The decreasing trends were also significant (P<0.01) for each season. The magnitude of the decrease was smallest in the east of northern China and largest in the west of northern China, and the most remarkable decrease occurred in the northwest of northern China. Abrupt decreases in annual and seasonal mean wind velocities occurred in the mid-1980s, which was consistent with the changes in aeolian desertification since the mid-1980s in northern China. As revealed by our study, although both modern aeolian desertification and ecosystem rehabilitation are affected by human activities to some extent, they are also likely to be strongly controlled by climate change, especially by wind activity.
英文关键词	wind velocity monotonic trend step trend aeolian desertification northern China
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	History
CSCD记录号	CSCD:5524745
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335547
作者单位	Li Jinchang, Beijing Normal University, State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing 100875, China.; Liu Haixia, Institute of Loess Plateau, Shanxi University, Taiyuan, Shanxi 030006, China.; Fan Xiaohui, Institute of Loess Plateau, Shanxi University, Taiyuan, Shanxi 030006, China.; Su Zhizhu, Historical Culture School, Shanxi University, Taiyuan, Shanxi 030006, China.
推荐引用方式 GB/T 7714	Li Jinchang,Liu Haixia,Su Zhizhu,et al. Changes in wind activity from 1957 to 2011 and their possible influence on aeolian desertification in northern China[J],2015,7(6):755-764.
APA	Li Jinchang,Liu Haixia,Su Zhizhu,&Fan Xiaohui.(2015).Changes in wind activity from 1957 to 2011 and their possible influence on aeolian desertification in northern China.Journal of Arid Land,7(6),755-764.
MLA	Li Jinchang,et al."Changes in wind activity from 1957 to 2011 and their possible influence on aeolian desertification in northern China".Journal of Arid Land 7.6(2015):755-764.