干旱区生态环境知识资源中心(Arid): Spatial and Temporal Variation of Wind Erosion Climatic Erosivity and Its Response to ENSO in the Otindag Desert, China

Arid

DOI	10.3390/atmos10100614
	Spatial and Temporal Variation of Wind Erosion Climatic Erosivity and Its Response to ENSO in the Otindag Desert, China
	Lou, Junpeng 1,2; Wang, Xunming 2; Cai, Diwen 2
通讯作者	Wang, Xunming
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2019
卷号	10 期号:10
英文摘要	Wind erosion is a major cause of soil losses in China's drylands which is further stimulated by climate variability and fragile ecological conditions. Climatic erosivity is an important index of wind erosion, therefore, evaluation of its spatiotemporal variations and relationship with the El Nino-Southern Oscillation (ENSO) will provide a theoretical basis for the comprehensive management and prevention of soil erosion. In this study, by using the climatic erosivity equation, geographic information system (GIS) and geostatistical analysis, we quantified the climatic erosivity, explored its spatiotemporal variations, and detected the effects of the Multivariate ENSO Index (MEI) on climatic erosivity in the Otindag Desert during the period of 1980-2016. The results indicated that the climatic erosivity (C-factor value) ranged from 82-445, and it decreased from the western margin to the eastern margin of the desert. The climatic erosivity showed a significant downward trend at seasonal and annual scales (p < 0.05). As far as spring, autumn and annual climatic erosivity, the whole region showed a downward trend, however, the summer and winter climatic erosivity varied spatially, in which the central and western regions showed a downward trend, but the eastern region showed an upward trend. The results showed that the average climatic erosivity is weaker during La Nina events than during El Nino events. The climatic erosivity recorded by 14 of the 20 meteorological stations, all located in central and west regions, exhibited a significant correlation with MEI (p < 0.05). The ENSO has a significant impact on climatic erosivity.
英文关键词	wind erosion climatic erosivity spatiotemporal variations MEI
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000498267500052
WOS关键词	RAINFALL EROSIVITY ; SPATIOTEMPORAL VARIATION ; AEOLIAN DESERTIFICATION ; DRYLAND REGION ; INNER-MONGOLIA ; SPEED TRENDS ; RIVER-BASIN ; VARIABILITY ; PRECIPITATION ; ENVIRONMENTS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
EI主题词	2019-10-01
来源机构	中国科学院地理科学与资源研究所 ; 清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310162
作者单位	1.Tsinghua Univ, Dept Hydraul Engn, Beijing 10084, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Lou, Junpeng,Wang, Xunming,Cai, Diwen. Spatial and Temporal Variation of Wind Erosion Climatic Erosivity and Its Response to ENSO in the Otindag Desert, China[J]. 中国科学院地理科学与资源研究所, 清华大学,2019,10(10).
APA	Lou, Junpeng,Wang, Xunming,&Cai, Diwen.(2019).Spatial and Temporal Variation of Wind Erosion Climatic Erosivity and Its Response to ENSO in the Otindag Desert, China.ATMOSPHERE,10(10).
MLA	Lou, Junpeng,et al."Spatial and Temporal Variation of Wind Erosion Climatic Erosivity and Its Response to ENSO in the Otindag Desert, China".ATMOSPHERE 10.10(2019).