气候变化领域集成服务门户(CCPortal): Accelerated increase in vegetation carbon sequestration in China after 2010: A turning point resulting from climate and human interaction

CCPortal

DOI	10.1111/gcb.15854
	Accelerated increase in vegetation carbon sequestration in China after 2010: A turning point resulting from climate and human interaction
	Chen, Yongzhe; Feng, Xiaoming; Tian, Hanqin; Wu, Xutong; Gao, Zhen; Feng, Yu; Piao, Shilong; Lv, Nan; Pan, Naiqing; Fu, Bojie
通讯作者	Fu, BJ (通讯作者)
发表日期	2021
ISSN	1354-1013
EISSN	1365-2486
起始页码	5848
结束页码	5864
卷号	27 期号:22
英文摘要	China has increased its vegetation coverage and enhanced its terrestrial carbon sink through ecological restoration since the end of the 20th century. However, the temporal variation in vegetation carbon sequestration remains unclear, and the relative effects of climate change and ecological restoration efforts are under debate. By integrating remote sensing and machine learning with a modelling approach, we explored the biological and physical pathways by which both climate change and human activities (e.g., ecological restoration, cropland expansion, and urbanization) have altered Chinese terrestrial ecosystem structures and functions, including vegetation cover, surface heat fluxes, water flux, and vegetation carbon sequestration (defined by gross and net primary production, GPP and NPP). Our study indicated that during 2001-2018, GPP in China increased significantly at a rate of 49.1-53.1 TgC/yr(2), and the climatic and anthropogenic contributions to GPP gains were comparable (48%-56% and 44%-52%, respectively). Spatially, afforestation was the dominant mechanism behind forest cover expansions in the farming-pastoral ecotone in northern China, on the Loess Plateau and in the southwest karst region, whereas climate change promoted vegetation cover in most parts of southeastern China. At the same time, the increasing trend in NPP (22.4-24.9 TgC/yr(2)) during 2001-2018 was highly attributed to human activities (71%-81%), particularly in southern, eastern, and northeastern China. Both GPP and NPP showed accelerated increases after 2010 because the anthropogenic NPP gains during 2001-2010 were generally offset by the climate-induced NPP losses in southern China. However, after 2010, the climatic influence reversed, thus highlighting the vegetation carbon sequestration that occurs with ecological restoration.
关键词	NET PRIMARY PRODUCTION FINE-ROOT BIOMASS GROSS PRIMARY PRODUCTION SHORTWAVE RADIATION LAND-USE PRECIPITATION PRODUCTIVITY RESPIRATION RESOLUTION ECOSYSTEMS
英文关键词	anthropogenic impacts; attribution analysis; China; climatic characteristics; interannual variation; vegetation carbon sequestration; vegetation cover
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:000691024700001
来源期刊	GLOBAL CHANGE BIOLOGY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260464
推荐引用方式 GB/T 7714	Chen, Yongzhe,Feng, Xiaoming,Tian, Hanqin,et al. Accelerated increase in vegetation carbon sequestration in China after 2010: A turning point resulting from climate and human interaction[J]. 中国科学院青藏高原研究所,2021,27(22).
APA	Chen, Yongzhe.,Feng, Xiaoming.,Tian, Hanqin.,Wu, Xutong.,Gao, Zhen.,...&Fu, Bojie.(2021).Accelerated increase in vegetation carbon sequestration in China after 2010: A turning point resulting from climate and human interaction.GLOBAL CHANGE BIOLOGY,27(22).
MLA	Chen, Yongzhe,et al."Accelerated increase in vegetation carbon sequestration in China after 2010: A turning point resulting from climate and human interaction".GLOBAL CHANGE BIOLOGY 27.22(2021).