气候变化领域集成服务门户(CCPortal): Sensitivity of soil dust emissions to driving factor variability in earth's main drylands

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DOI	10.1016/j.geoderma.2024.116876
	Sensitivity of soil dust emissions to driving factor variability in earth's main drylands
	Wang, Xuesong; Zhang, Chunlai
发表日期	2024
ISSN	0016-7061
EISSN	1872-6259
起始页码	445
卷号	445
英文摘要	The identification of driving factors that contribute to dust emissions holds great significance on studying global climate change. In the present study, we constructed a new index, Dust Sensitivity Index, which allowed us to identify the sensitivity of dust emissions responding to variations in driving factors over 2003-2017 in Earth's main drylands. We found that dust emissions were sensitive to driving factor variability in eastern Brazil, the southern drylands of the Sahel, eastern Africa, eastern Australia and parts of northern Eurasia, where the aridity index (AI) is relatively high. The main factor affecting the DSI varies geographically over the Earth's main dryland regions. In total, wind speed made the largest relative contribution to DOD sensitivity (11.3%), followed by soil moisture (10.8%) and vegetation (10.4%). In addition, wind, vegetation, and soil moisture interact to impose complex and varying limitations on dust activity. 39.3% of the Earth's main drylands were limited by vegetation, 31.2% by wind and 29.5% by soil moisture. Our study also demonstrates that the residual effects of previous dust-driving factors have impacts on contemporary conditions. We found that regions characterized by lower DSI values displayed the most prominent residual effects in general.
英文关键词	Dust emissions; Dust optical depth; Driving factors; Sensitivity; Variations
语种	英语
WOS研究方向	Agriculture
WOS类目	Soil Science
WOS记录号	WOS:001227464300001
来源期刊	GEODERMA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296109
作者单位	Beijing Normal University
推荐引用方式 GB/T 7714	Wang, Xuesong,Zhang, Chunlai. Sensitivity of soil dust emissions to driving factor variability in earth's main drylands[J],2024,445.
APA	Wang, Xuesong,&Zhang, Chunlai.(2024).Sensitivity of soil dust emissions to driving factor variability in earth's main drylands.GEODERMA,445.
MLA	Wang, Xuesong,et al."Sensitivity of soil dust emissions to driving factor variability in earth's main drylands".GEODERMA 445(2024).