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Divergent trends in grassland degradation and desertification under land use and climate change in Central Asia from 2000 to 2020

文献类型：期刊论文

作者Zhao, Yanbo2; Wang, Jie1,2; Zhang, Geli3; Liu, Luo6; Yang, Jilin2; Wu, Xiaocui9; Biradar, Chandrashekhar7,8; Dong, Jinwei5; Xiao, Xiangming4
刊名ECOLOGICAL INDICATORS
出版日期2023-10-01
卷号154页码:11
ISSN号1470-160X
关键词Climate change Drylands Desertification Grassland degradation Attribution analyses
DOI10.1016/j.ecolind.2023.110737
通讯作者Wang, Jie(jiewang178@cau.edu.cn)
英文摘要Grassland degradation (within-state change) and desertification (state conversion from grasslands to deserts) are different states in the complex dynamic process of grassland deterioration. However, the dynamics and associated drivers of the two states have been rarely examined separately, which is critical for early warning and conservation policy making. Here, the grassland degradation and desertification in Central Asia (CA) were studied due to their evident vulnerability to climate extremes and human activities. We performed a two-step approach to identify the critical state zones first (i.e., grasslands, deserts, and the desertification zones) and then assess the vegetation dynamics within each zone. Finally, we quantified the roles of CO2 fertilization effect, climate change, climate variability, land use (LU), and anthropogenic climate change (ACC) on the vegetation dynamics in different state zones. The results showed that the areas of grasslands and sparse vegetation regions (including deserts and desertification zones) were stable from 2000 to 2020, but the trends of vegetation greenness were divergent with a reduction in grasslands and an increase in sparse vegetation regions. Furthermore, climate change and climate variability were the main driving force affecting grassland degradation in CA. Yet the vegetation greening in the desertification and desert zones was mainly driven by the rising CO2 and LU. Moreover, ACC degraded 20.63% of grasslands and sparsely vegetated lands in CA on the baseline of 2000. The results highlighted the risks of grassland degradation in CA. This study proposed a methodology to examine grassland degradation and desertification in detail and quantify the associated driving factors (especially ACC) at the pixel scale, which provided some insights on developing region-precise strategies for grassland conservation in CA and other drylands.
WOS关键词SEMIARID ECOSYSTEMS ; VEGETATION DYNAMICS ; COVER CHANGE ; DROUGHT ; PRODUCTIVITY ; VARIABILITY ; GREENNESS ; IMPACTS ; FORESTS ; GROWTH
资助项目National Natural Science Foundation of China[42101355] ; Key Research and Development Projects of Ningxia Province, China[2022BEG03050] ; Chinese Universities Scientific Fund[15053346] ; Chinese Universities Scientific Fund[10092004] ; Chinese Universities Scientific Fund[31051203]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:001047117200001
资助机构National Natural Science Foundation of China ; Key Research and Development Projects of Ningxia Province, China ; Chinese Universities Scientific Fund
源URL[http://ir.igsnrr.ac.cn/handle/311030/196300]  
专题中国科学院地理科学与资源研究所
通讯作者Wang, Jie
作者单位1.China Agr Univ, Coll Grassland Sci & Technol, Yuanmingyuan West Rd 2, Beijing 100193, Peoples R China
2.China Agr Univ, Coll Grassland Sci & Technol, Beijing 100193, Peoples R China
3.China Agr Univ, Coll Land Sci & Technol, Beijing 100193, Peoples R China
4.Univ Oklahoma, Ctr Earth Observat & Modeling, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
6.South China Agr Univ, Guangdong Prov Key Lab Land Use & Consolidat, Guangzhou 510642, Peoples R China
7.World Agroforestry Ctr ICRAF, New Delhi, India
8.Ctr Int Forestry Res CIFOR, Asia Continental Program, New Delhi, India
9.Univ Illinois, Dept Nat Resources & Environm Sci, Urbana, IL 61801 USA
推荐引用方式
GB/T 7714		 Zhao, Yanbo,Wang, Jie,Zhang, Geli,et al. Divergent trends in grassland degradation and desertification under land use and climate change in Central Asia from 2000 to 2020[J]. ECOLOGICAL INDICATORS,2023,154:11.
APA Zhao, Yanbo.,Wang, Jie.,Zhang, Geli.,Liu, Luo.,Yang, Jilin.,...&Xiao, Xiangming.(2023).Divergent trends in grassland degradation and desertification under land use and climate change in Central Asia from 2000 to 2020.ECOLOGICAL INDICATORS,154,11.
MLA Zhao, Yanbo,et al."Divergent trends in grassland degradation and desertification under land use and climate change in Central Asia from 2000 to 2020".ECOLOGICAL INDICATORS 154(2023):11.

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来源：地理科学与资源研究所

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