干旱区生态环境知识资源中心(Arid): Using hydro-climate elasticity estimator and geographical detector method to quantify the individual and interactive impacts on NDVI in oasis-desert ecotone

Arid

DOI	10.1007/s00477-022-02184-4
	Using hydro-climate elasticity estimator and geographical detector method to quantify the individual and interactive impacts on NDVI in oasis-desert ecotone
	Chang, Jingjing; Gong, Lu; Zeng, Fanjiang; Xue, Jie; Mao, Donglei; Cao, Yongxiang; Mu, Guijin; Wang, Shaoping
通讯作者	Zeng, FJ ; Xue, J
来源期刊	STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
ISSN	1436-3240
EISSN	1436-3259
出版年	2022
英文摘要	The oasis-desert ecotone as a transitional zone is sensitive and vulnerable to hydro-climatic changes and anthropogenic activities in maintaining oasis stability and combating desertification. The normalized difference vegetation index (NDVI) is an important indicator for evaluating the desert vegetation restoration status. However, it is difficult to quantify individual and interactive impacts of hydro-climatic changes and anthropogenic activities on NDVI in the oasis-desert ecotone. This paper introduces the hydro-climate elasticity and geographical detector approach to assess the influences of hydro-climate changes and human activities on NDVI in Qira oasis-desert ecotone, Northwest China during 2000-2019. Results show that the climatic elasticities of NDVI reflect that the NDVI is more sensitive to precipitation (0.318) than to temperature (0.290), while the NDVI becomes more sensitive to variation in soil moisture content (0.219) than that in the groundwater table (0.150) in hydrological elasticities. The land-use change caused by human activities results in a decrease of NDVI, accounting for 90% of NDVI reduction. The human activities indicate the strongest influence on NDVI. The nonparametric elasticity estimator proposed is illustrated good agreement with the spatiotemporal synchronism of NDVI to hydro-climatic changes. The interaction analysis of geographical detector reveals that the interaction among influencing factors has a bivariate enhancement relationship and a nonlinear enhancement effect on NDVI. This study contributes to clarifying the individual influencing and interactive relationships of NDVI to hydro-climatic factors and human activities, and assist land restoration practitioners to evaluate the desert vegetation restoration status under current and future hydro-climatic changes in arid regions.
英文关键词	NDVI Oasis-desert ecotone Hydro-climate elasticity Geographical detector Synchronism
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000761860200001
WOS关键词	DRIVING FACTORS ; PRECIPITATION PULSES ; LAND DEGRADATION ; SOUTHERN MARGIN ; COVER CHANGE ; TARIM BASIN ; JINTA OASIS ; SOIL-WATER ; CHINA ; DESERTIFICATION
WOS类目	Engineering, Environmental ; Engineering, Civil ; Environmental Sciences ; Statistics & Probability ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Mathematics ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377220
推荐引用方式 GB/T 7714	Chang, Jingjing,Gong, Lu,Zeng, Fanjiang,et al. Using hydro-climate elasticity estimator and geographical detector method to quantify the individual and interactive impacts on NDVI in oasis-desert ecotone[J],2022.
APA	Chang, Jingjing.,Gong, Lu.,Zeng, Fanjiang.,Xue, Jie.,Mao, Donglei.,...&Wang, Shaoping.(2022).Using hydro-climate elasticity estimator and geographical detector method to quantify the individual and interactive impacts on NDVI in oasis-desert ecotone.STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT.
MLA	Chang, Jingjing,et al."Using hydro-climate elasticity estimator and geographical detector method to quantify the individual and interactive impacts on NDVI in oasis-desert ecotone".STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT (2022).