干旱区生态环境知识资源中心(Arid): Divergent trends in grassland degradation and desertification under land use and climate change in Central Asia from 2000 to 2020

Arid

DOI	10.1016/j.ecolind.2023.110737
	Divergent trends in grassland degradation and desertification under land use and climate change in Central Asia from 2000 to 2020
	Zhao, Yanbo; Wang, Jie; Zhang, Geli; Liu, Luo; Yang, Jilin; Wu, Xiaocui; Biradar, Chandrashekhar; Dong, Jinwei; Xiao, Xiangming
通讯作者	Wang, J
来源期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
EISSN	1872-7034
出版年	2023
卷号	154
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.
英文关键词	Climate change Drylands Desertification Grassland degradation Attribution analyses
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:001047117200001
WOS关键词	SEMIARID ECOSYSTEMS ; VEGETATION DYNAMICS ; COVER CHANGE ; DROUGHT ; PRODUCTIVITY ; VARIABILITY ; GREENNESS ; IMPACTS ; FORESTS ; GROWTH
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395954
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],2023,154.
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.
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).