气候变化领域集成服务门户(CCPortal): Definitions and methods to estimate regional land carbon fluxes for the second phase of the REgional Carbon Cycle Assessment and Processes Project (RECCAP-2)

CCPortal

DOI	10.5194/gmd-15-1289-2022
	Definitions and methods to estimate regional land carbon fluxes for the second phase of the REgional Carbon Cycle Assessment and Processes Project (RECCAP-2)
	Ciais, Philippe; Bastos, Ana; Chevallier, Frederic; Lauerwald, Ronny; Poulter, Ben; Canadell, Pep; Hugelius, Gustaf; Jackson, Robert B.; Jain, Atul; Jones, Matthew; Kondo, Masayuki; Luijkx, Ingrid T.; Patra, Prabir K.; Peters, Wouter; Pongratz, Julia; Petrescu, A. M. Roxana; Piao, Shilong; Qiu, Chunjing; Von Randow, Celso; Regnier, Pierre; Saunois, Marielle; Scholes, Robert; Shvidenko, Anatoly; Tian, Hanqin; Yang, Hui; Wang, Xuhui; Zheng, Bo
通讯作者	Ciais, P (通讯作者)
发表日期	2022
ISSN	1991-959X
EISSN	1991-9603
起始页码	1289
结束页码	1316
卷号	15 期号:3
英文摘要	Regional land carbon budgets provide insights into the spatial distribution of the land uptake of atmospheric carbon dioxide and can be used to evaluate carbon cycle models and to define baselines for land-based additional mitigation efforts. The scientific community has been involved in providing observation-based estimates of regional carbon budgets either by downscaling atmospheric CO2 observations into surface fluxes with atmospheric inversions, by using inventories of carbon stock changes in terrestrial ecosystems, by upscaling local field observations such as flux towers with gridded climate and remote sensing fields, or by integrating data-driven or process-oriented terrestrial carbon cycle models. The first coordinated attempt to collect regional carbon budgets for nine regions covering the entire globe in the RECCAP-1 project has delivered estimates for the decade 2000-2009, but these budgets were not comparable between regions due to different definitions and component fluxes being reported or omitted. The recent recognition of lateral fluxes of carbon by human activities and rivers that connect CO2 uptake in one area with its release in another also requires better definitions and protocols to reach harmonized regional budgets that can be summed up to a globe scale and compared with the atmospheric CO2 growth rate and inversion results. In this study, using the international initiative RECCAP-2 coordinated by the Global Carbon Project, which aims to be an update to regional carbon budgets over the last 2 decades based on observations for 10 regions covering the globe with a better harmonization than the precursor project, we provide recommendations for using atmospheric inversion results to match bottom-up carbon accounting and models, and we define the different component fluxes of the net land atmosphere carbon exchange that should be reported by each research group in charge of each region. Special attention is given to lateral fluxes, inland water fluxes, and land use fluxes.
关键词	GREENHOUSE-GAS EMISSIONS GLOBAL FIRE EMISSIONS COVER CHANGE SPATIAL-DISTRIBUTION DIOXIDE EMISSIONS VEGETATION MODEL TROPICAL FORESTS ORGANIC-CARBON CO2 EMISSIONS WOOD HARVEST
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000760376200001
来源期刊	GEOSCIENTIFIC MODEL DEVELOPMENT
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/260787
推荐引用方式 GB/T 7714	Ciais, Philippe,Bastos, Ana,Chevallier, Frederic,et al. Definitions and methods to estimate regional land carbon fluxes for the second phase of the REgional Carbon Cycle Assessment and Processes Project (RECCAP-2)[J]. 中国科学院青藏高原研究所,2022,15(3).
APA	Ciais, Philippe.,Bastos, Ana.,Chevallier, Frederic.,Lauerwald, Ronny.,Poulter, Ben.,...&Zheng, Bo.(2022).Definitions and methods to estimate regional land carbon fluxes for the second phase of the REgional Carbon Cycle Assessment and Processes Project (RECCAP-2).GEOSCIENTIFIC MODEL DEVELOPMENT,15(3).
MLA	Ciais, Philippe,et al."Definitions and methods to estimate regional land carbon fluxes for the second phase of the REgional Carbon Cycle Assessment and Processes Project (RECCAP-2)".GEOSCIENTIFIC MODEL DEVELOPMENT 15.3(2022).