干旱区生态环境知识资源中心(Arid): Effects of Vegetation Change on Soil Erosion by Water in Major Basins, Central Asia

Arid

DOI	10.3390/rs14215507
	Effects of Vegetation Change on Soil Erosion by Water in Major Basins, Central Asia
	Qian, Kaixuan; Ma, Xiaofei; Wang, Yonghui; Yuan, Xiuliang; Yan, Wei; Liu, Yuan; Yang, Xiuyun; Li, Jiaxin
通讯作者	Wang, YH
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:21
英文摘要	The uncertainties in soil erosion (SE) are further intensified by various factors, such as global warming, regional warming and humidification, and vegetation cover changes. Moreover, quantitative evaluations of SE in major basins of Central Asia (CA) under changing environments have rarely been conducted. This study conducted quantitative evaluation of SE in four major basins (Syr Darya Basin (SDB), Amu Darya Basin (ADB), Ili River Basin (IRB) and Tarim River Basin (TRB) using the Revised Universal Soil Loss Equation (RUSLE) and analyzed the main driving factors. SE quantities in the basins presented relatively consistent upward fluctuating trends from 1982 to 2017. Vegetation cover variation fluctuated significantly from 1982 to 2017. Specifically, vegetation cover decreased continuously in SDB, ADB, and IRB, but increased gradually in TRB. Pixels with positive spatial variation of vegetation mainly occurred around lakes and oases near rivers. The Normalized Difference Vegetation Index (NDVI) showed higher correlation with precipitation (80.5%) than with temperature (48.3%). During the study period, the area of arable land (AL) exhibited the largest change among all land use types in CA. Under long-term human activities, the proportion of NDVI of other land types converting to AL was the highest. In the structural equation model (SEM), precipitation, temperature, Shannon Diversity Index (SHDI), and NDVI strongly influenced SE. Overall, the major basins in CA were jointly affected by climate, human activities, and vegetation. Specifically, climatic factors exerted the strongest influence, followed by SHDI (human activities). SE was found to be relatively serious in ADB, SDB, and IRB, with SE in SDB even approaching that in the Loess Plateau. Under the background of global changes, appropriate water and land resource management and optimization configurations should be implemented in CA with reference to TRB in order to relieve local SE problems.
英文关键词	soil erosion climate change RUSLE model Central Asia soil and water conservation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000883521600001
WOS关键词	LAND-COVER CHANGES ; TARIM RIVER-BASIN ; CLIMATE-CHANGE IMPACTS ; ARAL SEA ; LOESS PLATEAU ; SPATIOTEMPORAL VARIATION ; DYNAMICS ; NDVI ; INDEX ; RUSLE
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394230
推荐引用方式 GB/T 7714	Qian, Kaixuan,Ma, Xiaofei,Wang, Yonghui,et al. Effects of Vegetation Change on Soil Erosion by Water in Major Basins, Central Asia[J],2022,14(21).
APA	Qian, Kaixuan.,Ma, Xiaofei.,Wang, Yonghui.,Yuan, Xiuliang.,Yan, Wei.,...&Li, Jiaxin.(2022).Effects of Vegetation Change on Soil Erosion by Water in Major Basins, Central Asia.REMOTE SENSING,14(21).
MLA	Qian, Kaixuan,et al."Effects of Vegetation Change on Soil Erosion by Water in Major Basins, Central Asia".REMOTE SENSING 14.21(2022).