干旱区生态环境知识资源中心(Arid): Baseline and status of desertification in Central Asia

Arid

DOI	10.1002/ldr.4214
	Baseline and status of desertification in Central Asia
	Cai, Diwen; Wang, Xunming; Hua, Ting; Jiao, Linlin; Geng, Xin
通讯作者	Wang, XM (corresponding author)，Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2022-02
英文摘要	Baseline determination is a prerequisite for desertification monitoring and assessment and also for the sustainable development of drylands. In this study based on long-term remote sensing net primary production (NPP) data and combined with a local NPP scaling method, the desertification status in Central Asia is quantified, and NPP-based objective baseline of desertification (potential NPP, NPPp), which could be more convenient and enables the desertification status measurable from local to global scales, is established by integrating space-for-time substitution, isolation forest (iForest) algorithm, and Monte Carlo simulations. More reliable than a fixed percentile-based reference with subjective preference, the analyzed results show that across Central Asia over the past four decades, the NPPp ranged from 46.4 to 639.5 gC m(-2) yr(-1) with different land cover types and regions, and the general desertification status in the region was rated as a moderate degree with an average of 50.5%. From the 1980s to the 2000s in most regions of Central Asia, reversals of desertification occurred, but it intensified in the 2010s. This study may contribute to improving the existing framework of SDG Indicator 15.3.1.
英文关键词	baseline Central Asia desertification local NPP scaling net primary production
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000758579000001
WOS关键词	LAND DEGRADATION ; CLIMATE-CHANGE ; XINJIANG ; CONTEXT
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377249
作者单位	[Cai, Diwen; Wang, Xunming; Geng, Xin] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; [Cai, Diwen; Wang, Xunming; Geng, Xin] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China; [Hua, Ting] Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian, Peoples R China; [Jiao, Linlin] North China Univ Sci & Technol, Coll Min Engn, Tangshan, Peoples R China
推荐引用方式 GB/T 7714	Cai, Diwen,Wang, Xunming,Hua, Ting,et al. Baseline and status of desertification in Central Asia[J],2022.
APA	Cai, Diwen,Wang, Xunming,Hua, Ting,Jiao, Linlin,&Geng, Xin.(2022).Baseline and status of desertification in Central Asia.LAND DEGRADATION & DEVELOPMENT.
MLA	Cai, Diwen,et al."Baseline and status of desertification in Central Asia".LAND DEGRADATION & DEVELOPMENT (2022).