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	Assessing changes in wind erosion climatic erosivity in china's dryland region during 1961-2012
	Yang Fengbo1,2; Lu Changhe1
刊名	Journal of geographical sciences
	2016-09-01
卷号	26期号:9页码:1263-1276
关键词	Wind erosion climatic erosivity Trend Climate change Dryland region China
ISSN号	1009-637X
DOI	10.1007/s11442-016-1325-9
通讯作者	Lu changhe(luch@igsnrr.ac.cn)
英文摘要	China's dryland region has serious wind erosion problem and is sensitive to climate change due to its fragile ecological condition. wind erosion climatic erosivity is a measure of climatic factors influencing wind erosion, therefore, evaluation of its intensity and response to recent climate changes can contribute to the understanding of climate change effect on wind erosion risk. using the fao equation, gis and statistical analysis tools, this study quantified the climatic erosivity, analyzed its spatiotemporal variations, and detected the trend and sensitivity to climate factors during 1961-2012. the results indicate that mean annual climatic erosivity was 2-166 at 292 stations and 237-471 at 6 stations, with the spatial distribution highly in accordance with wind speed ( r-2 = 0.94). the climatic erosivity varied greatly over time with the annual variation ( cv) of 14.7%-108.9% and monthly variation ( concentration degree) of 0.10-0.71 in the region. meanwhile, annual erosivity showed a significant downward trend at an annual decreasing rate mostly above 1.0%. this significantly decreasing trend was mainly attributed to the obvious decline of wind speed during the period. the results suggest that the recent climate changes were highly possible to induce a decrease of wind erosion risk in china's dryland region.
WOS关键词	SPEED TRENDS ; EVAPOTRANSPIRATION ; PRECIPITATION ; SENSITIVITY
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000380673000001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375134
专题	中国科学院大学
通讯作者	Lu Changhe
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang Fengbo,Lu Changhe. Assessing changes in wind erosion climatic erosivity in china's dryland region during 1961-2012[J]. Journal of geographical sciences,2016,26(9):1263-1276.
APA	Yang Fengbo,&Lu Changhe.(2016).Assessing changes in wind erosion climatic erosivity in china's dryland region during 1961-2012.Journal of geographical sciences,26(9),1263-1276.
MLA	Yang Fengbo,et al."Assessing changes in wind erosion climatic erosivity in china's dryland region during 1961-2012".Journal of geographical sciences 26.9(2016):1263-1276.

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