干旱区生态环境知识资源中心(Arid): Limited driving of elevated CO2 on vegetation greening over global drylands

Arid

DOI	10.1088/1748-9326/acf6d3
	Limited driving of elevated CO2 on vegetation greening over global drylands
	Jian, Dongnan; Niu, Guo-Yue; Ma, Zhuguo; Liu, Hongyan; Guan, Dabo; Zhou, Xin; Zhou, Juan
通讯作者	Ma, ZG
来源期刊	ENVIRONMENTAL RESEARCH LETTERS
ISSN	1748-9326
出版年	2023
卷号	18 期号:10
英文摘要	Drylands are the world's largest biome and dominate the trends and interannual variability of global carbon sinks. Although a 'greening' trend of global drylands has been widely reported, large uncertainties remain in attributing its drivers. It is increasingly emphasized that elevated CO2 has greatly contributed to the vegetation greening over global drylands. Here we quantified the contributions of climate change, elevated CO2, and land use and land cover change (LULCC) on leaf area index (LAI) over drylands, using a process-based land surface model Noah-MP to investigate the drivers of vegetation change. The state-of-the-art model shows better performance in simulating the interannual variability of satellite-observed LAI over global drylands compared with that of the multi-model ensemble mean LAI from the TRENDY results. The area that LAI changes dominated by climate change (44.03%) is three times greater than that by CO2 (13.89%), and climate change also contributes most to the global drylands greening trend (55.07%). LULCC shows regional dominance over 13.35% of the global drylands, which is associated with afforestation, woody plant encroachment, and agricultural intensification. Our results imply that the vegetation greening area driven by elevated CO2 is much limited relative to the overwhelming climatic driving, which should be considered in predictions of trends and interannual variations of global carbon sinks.
英文关键词	vegetation change climate change elevated CO2 Noah-MP land surface model drylands
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:001093137400001
WOS关键词	SEMIARID ECOSYSTEMS ; CLIMATE-CHANGE ; PRECIPITATION PULSE ; TRENDS ; DESERTIFICATION ; DEFORESTATION ; EARTH ; DEGRADATION ; VARIABILITY ; GREENNESS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396225
推荐引用方式 GB/T 7714	Jian, Dongnan,Niu, Guo-Yue,Ma, Zhuguo,et al. Limited driving of elevated CO2 on vegetation greening over global drylands[J],2023,18(10).
APA	Jian, Dongnan.,Niu, Guo-Yue.,Ma, Zhuguo.,Liu, Hongyan.,Guan, Dabo.,...&Zhou, Juan.(2023).Limited driving of elevated CO2 on vegetation greening over global drylands.ENVIRONMENTAL RESEARCH LETTERS,18(10).
MLA	Jian, Dongnan,et al."Limited driving of elevated CO2 on vegetation greening over global drylands".ENVIRONMENTAL RESEARCH LETTERS 18.10(2023).