DOI: 10.1175/JCLI-D-12-00831.1
Scopus记录号: 2-s2.0-84888052621
论文题名: Terrestrial carbon cycle: Climate relations in eight CMIP5 earth system models
作者: Shao P. ; Zeng X. ; Sakaguchi K. ; Monson R.K. ; Zeng X.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 22 起始页码: 8744
结束页码: 8764
语种: 英语
Scopus关键词: Anthropogenic effects
; Atmosphere-land interactions
; Biosphere-atmosphere interactions
; Carbon cycles
; Ecological models
; Model evaluation/performance
; Carbon
; Carbon dioxide
; Climate change
; Computer simulation
; Earth (planet)
; Ecology
; Soil moisture
; Climate models
; anthropogenic effect
; atmosphere-biosphere interaction
; carbon cycle
; carbon dioxide
; carbon flux
; climate effect
; climate variation
; correlation
; ecological modeling
; hydrological cycle
; precipitation (climatology)
; soil moisture
英文摘要: Eight Earth System Models from phase 5 of the Coupled Model Intercomparison Project (CMIP5) are evaluated, focusing on both the net carbon dioxide flux and its components and their relation with climatic variables (temperature, precipitation, and soil moisture) in the historical (1850-2005) and representative concentration pathway 4.5 (RCP4.5; 2006-2100) simulations. While model results differ, their median globally averaged production and respiration terms from 1976 to 2005 agree reasonably with available observation-based products. Disturbances such as land use change are roughly represented but crucial in determining whether the land is a carbon source or sink over many regions in both simulations. While carbon fluxes vary with latitude and between the two simulations, the ratio of net to gross primary production, representing the ecosystem carbon use efficiency, is less dependent on latitude and does not differ significantly in the historical and RCP4.5 simulations. The linear trend of increased land carbon fluxes (except net ecosystem production) is accelerated in the twenty-first century. The cumulative net ecosystem production by 2100 is positive (i.e., carbon sink) in all models and the tropical and boreal latitudes become major carbon sinks in most models. The temporal correlations between annual-mean carbon cycle and climate variables vary substantially (including the change of sign) among the eight models in both the historical and twenty-first-century simulations. The ranges of correlations of carbon cycle variables with precipitation and soil moisture are also quite different, reflecting the important impact of the model treatment of the hydrological cycle on the carbon cycle. © 2013 American Meteorological Society. 资助项目: NSF, National Science Foundation
; NSF, National Science Foundation
; DOE, U.S. Department of Energy
; NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51581
Appears in Collections: 气候变化事实与影响
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作者单位: International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Atmospheric Sciences, University of Arizona, Tucson, AZ, United States; School of Natural Resources and the Environment, Laboratory for Tree Ring Research, University of Arizona, Tucson, AZ, United States
Recommended Citation:
Shao P.,Zeng X.,Sakaguchi K.,et al. Terrestrial carbon cycle: Climate relations in eight CMIP5 earth system models[J]. Journal of Climate,2013-01-01,26(22)