中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地理科学与资源研究所
  3. 中国科学院地理科学与资源研究所
Baseline and status of desertification in Central Asia

文献类型：期刊论文

作者Cai, Diwen1,2; Wang, Xunming1,2; Hua, Ting3; Jiao, Linlin4; Geng, Xin1,2
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2022-02-21
页码14
关键词baseline Central Asia desertification local NPP scaling net primary production
ISSN号1085-3278
DOI10.1002/ldr.4214
通讯作者Wang, Xunming(xunming@igsnrr.ac.cn)
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.
WOS关键词LAND DEGRADATION ; CLIMATE-CHANGE ; XINJIANG ; CONTEXT
资助项目Key Frontier Program of Chinese Academy of Sciences[QYZDJ-SSWDQC043] ; National Natural Science Foundation of China[41930640] ; Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0305]
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
WOS记录号WOS:000758579000001
出版者WILEY
资助机构Key Frontier Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research
源URL[http://ir.igsnrr.ac.cn/handle/311030/171179]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Xunming
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
3.Northwest Univ, Coll Urban & Environm Sci, Shaanxi Key Lab Earth Surface Syst & Environm Car, Xian, Peoples R China
4.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]. LAND DEGRADATION & DEVELOPMENT,2022:14.
APA Cai, Diwen,Wang, Xunming,Hua, Ting,Jiao, Linlin,&Geng, Xin.(2022).Baseline and status of desertification in Central Asia.LAND DEGRADATION & DEVELOPMENT,14.
MLA Cai, Diwen,et al."Baseline and status of desertification in Central Asia".LAND DEGRADATION & DEVELOPMENT (2022):14.

入库方式： OAI收割

来源：地理科学与资源研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。