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Spatiotemporal Evolution Characteristics and the Climatic Response of Carbon Sources and Sinks in the Chinese Grassland Ecosystem from 2010 to 2020

文献类型：期刊论文

作者Li, Xiang1; Lin, Gang2,3; Jiang, Dong2,3,4; Fu, Jingying2,3,5; Wang, Yaxin6
刊名SUSTAINABILITY
出版日期2022-07-01
卷号14期号:14页码:17
关键词grassland ecosystem vegetation production model soil respiration model net ecosystem productivity carbon peak and neutrality
DOI10.3390/su14148461
通讯作者Fu, Jingying(fujy@igsnrr.ac.cn) ; Wang, Yaxin(wangyx@ifrit.ac.cn)
英文摘要With the increase in global carbon dioxide emissions, China has put forward the goals of a carbon peak and carbon neutrality (double carbon) and formulated an action plan to consolidate and enhance the carbon sink capacity of the ecosystem. The Chinese grassland ecosystem (CGE) is widely distributed and is the key link for China to achieve the double carbon objectives. However, there is a relative lack of research on carbon sources and sinks in the CGE, so it is urgent to integrate and analyze the carbon sources and sinks in the grassland ecosystem on the national scale. Based on the refined grid data, the net ecosystem productivity (NEP) of the CGE was estimated by coupling the vegetation production model and soil respiration model. The results showed that the cumulative carbon sequestration of the CGE was 14.46 PgC from 2010 to 2020. In terms of spatial distribution, this shows that the differentiation characteristics are high in the northwest of China and low in the southeast of China, which strongly corresponds with the 400 mm isohyet and 0 degrees C isotherm of China. The results of the correlation analysis showed that the NEP of the CGE was positively correlated with precipitation and negatively correlated with temperature; that is, precipitation mainly promotes the accumulation of NEP, and temperature mainly inhibits it. The coupling effect of temperature and precipitation jointly affects the spatial change of carbon sources and sinks of the CGE. This study can provide a scientific basis for government departments to formulate targeted policies to deal with climate change, which is of great significance for China to improve ecosystem management, ensure ecological security and promote the realization of China's double carbon goal.
WOS关键词NET PRIMARY PRODUCTIVITY ; GROSS PRIMARY PRODUCTION ; SOIL RESPIRATION
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040305] ; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences[E0V00112YZ] ; National Natural Science Foundation of China[41971250]
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000833677100001
出版者MDPI
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/181564]  
专题中国科学院地理科学与资源研究所
通讯作者Fu, Jingying; Wang, Yaxin
作者单位1.China Univ Min & Technol Beijing, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
4.Minist Nat Resources, Key Lab Carrying Capac Assessment Resource & Envi, Beijing 100812, Peoples R China
5.Minist Nat Resources, Key Lab Coupling Proc & Effects Nat Resource Elem, Beijing 100055, Peoples R China
6.Chinese Acad Forestry, Inst Forest Resource Informat Tech, Beijing 100091, Peoples R China
推荐引用方式
GB/T 7714		 Li, Xiang,Lin, Gang,Jiang, Dong,et al. Spatiotemporal Evolution Characteristics and the Climatic Response of Carbon Sources and Sinks in the Chinese Grassland Ecosystem from 2010 to 2020[J]. SUSTAINABILITY,2022,14(14):17.
APA Li, Xiang,Lin, Gang,Jiang, Dong,Fu, Jingying,&Wang, Yaxin.(2022).Spatiotemporal Evolution Characteristics and the Climatic Response of Carbon Sources and Sinks in the Chinese Grassland Ecosystem from 2010 to 2020.SUSTAINABILITY,14(14),17.
MLA Li, Xiang,et al."Spatiotemporal Evolution Characteristics and the Climatic Response of Carbon Sources and Sinks in the Chinese Grassland Ecosystem from 2010 to 2020".SUSTAINABILITY 14.14(2022):17.

入库方式： OAI收割

来源：地理科学与资源研究所

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