Reexamine China's terrestrial ecosystem carbon balance under land use-type and climate change

doi:10.1016/j.landusepol.2020.105275

	Reexamine China's terrestrial ecosystem carbon balance under land use-type and climate change
	Li, Jiasheng 1; Guo, Xiaomin 2; Chuai, Xiaowei 1,3; Xie, Fangjian 3; Yang, Feng ; Gao, Runyi 1; Ji, Xuepeng 1
刊名	LAND USE POLICY
	2021-03-01
卷号	102 页码:9
关键词	Carbon storage Net Ecosystem Productivity Carbon balance Terrestrial ecosystem Land use change Climate change
ISSN号	0264-8377
DOI	10.1016/j.landusepol.2020.105275
通讯作者	Chuai, Xiaowei(Chuaixiaowei@163.com)
英文摘要	Land use and climate change can strongly affect the terrestrial ecosystem carbon balance. However, there is a lack of clarity for existing studies that investigate total carbon balance for China's terrestrial carbon balance (carbon storage and Net Ecosystem Productivity (NEP)). In this study, based on large data and the improved NEP model, we examined land use and climate change during 2000-2015 in China, calculated terrestrial ecosystem carbon storage change caused by land use change, and carbon sink/source variation under climate change; we found that during 2000-2015, 3.05 % of China's land area had land use type changes and caused 32.97 Tg of carbon storage loss, consisting of 10.4 Tg from vegetation carbon storage and 22.57 Tg from soil organic carbon (SOC) loss. Built-up land occupying ecological land was the most obvious land transfer type, especially for grassland degeneration. Both temperature and precipitation showed decreasing trends throughout China. Mean annual NEP showed a carbon sink value of 41.73 g C.m(-2).yr(-1), and the NEPs of carbon sinks were mostly distributed in South and Midland China and partly in Northeast China. There were obvious regional differences and the carbon balance showed that North China and Northwest China were regions of net carbon sources. The other four regions were net carbon sinks. Land use changes caused carbon storage loss in all regions, NEPs in North China and Northwest China were carbon sources, while in the other regions were carbon sinks. All NEPs exhibited an increasing trend during 2000-2015, except for Mid-South China. Finally, according to regional carbon balance characters, different policy implications were drawn which can serve for the formulation of territorial spatial planning. Land exploitation should be limited and environmental conservation is needed in North and Northwest China. The temperature in Southwest China has been increasing continuously and merits attention. The control of built-up land expansion in other regions should be strengthened.
资助项目	Ministry of Education, Humanities, and Social Science Fund of China[19YJAZH008] ; National Natural Science Foundation of China[71921003]
WOS关键词	SOIL ORGANIC-CARBON ; SPATIOTEMPORAL PATTERNS ; URBAN EXPANSION ; EMISSIONS ; FLUX ; CO2 ; PRODUCTIVITY ; RESPIRATION ; VARIABILITY ; IMPACTS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000679094100018
资助机构	Ministry of Education, Humanities, and Social Science Fund of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/164761]
专题	中国科学院地理科学与资源研究所
通讯作者	Chuai, Xiaowei
作者单位	1.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210046, Jiangsu, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Nanjing Municipal Acad Ecol & Environm Protect Sc, Nanjing 210093, Peoples R China
推荐引用方式 GB/T 7714	Li, Jiasheng,Guo, Xiaomin,Chuai, Xiaowei,et al. Reexamine China's terrestrial ecosystem carbon balance under land use-type and climate change[J]. LAND USE POLICY,2021,102:9.
APA	Li, Jiasheng.,Guo, Xiaomin.,Chuai, Xiaowei.,Xie, Fangjian.,Yang, Feng.,...&Ji, Xuepeng.(2021).Reexamine China's terrestrial ecosystem carbon balance under land use-type and climate change.LAND USE POLICY,102,9.
MLA	Li, Jiasheng,et al."Reexamine China's terrestrial ecosystem carbon balance under land use-type and climate change".LAND USE POLICY 102(2021):9.