DOI: 10.1175/JCLI-D-16-0555.1
Scopus记录号: 2-s2.0-85025637022
论文题名: Seasonal responses of terrestrial carbon cycle to climate variations in CMIP5 models: Evaluation and projection
作者: Liu Y. ; Piao S. ; Lian X. ; Ciais P. ; Smith W.K.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 16 起始页码: 6481
结束页码: 6503
语种: 英语
Scopus关键词: Carbon
; Climate change
; Forestry
; Rhodium
; Sensitivity analysis
; Tropics
; Vegetation
; Coupled Model Intercomparison Project
; Coupled models
; Heterotrophic respiration
; Interannual variability
; Land surface
; Model evaluation/performance
; Temperature sensitivity
; Terrestrial carbon cycle
; Climate models
英文摘要: Seventeen Earth system models (ESMs) from phase 5 of the Coupled Model Intercomparison Project (CMIP5) were evaluated, focusing on the seasonal sensitivities of net biome production (NBP), net primary production (NPP), and heterotrophic respiration (Rh) to interannual variations in temperature and precipitation during 1982-2005 and their changes over the twenty-first century. Temperature sensitivity of NPP in ESMs was generally consistent across northern high-latitude biomes but significantly more negative for tropical and subtropical biomes relative to satellite-derived estimates. The temperature sensitivity of NBP in both inversion-based and ESM estimates was generally consistent in March-May (MAM) and September- November (SON) for tropical forests, semiarid ecosystems, and boreal forests. By contrast, for inversion-based NBP estimates, temperature sensitivity of NBP was nonsignificant for June-August (JJA) for all biomes except boreal forest; whereas, for ESM NBP estimates, the temperature sensitivity for JJA was significantly negative for all biomes except shrublands and subarctic ecosystems.Both satellite-derivedNPP and inversion-basedNBP are often decoupled from precipitation, whereas ESM NPP and NBP estimates are generally positively correlated with precipitation, suggesting that ESMs are oversensitive to precipitation. Over the twenty-first century, changes in temperature sensitivities of NPP, Rh, and NBP are consistent across all RCPs but stronger under more intensive scenarios. The temperature sensitivity of NBP was found to decrease in tropics and subtropics and increase in northern high latitudes inMAMdue to an increased temperature sensitivity of NPP. Across all biomes, projected temperature sensitivity ofNPP decreased in JJAand SON. Projected precipitation sensitivity of NBP did not change across biomes, except over grasslands in MAM. © 2017 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
; 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/48785
Appears in Collections: 气候减缓与适应 气候变化与战略
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作者单位: Sino-French Institute for Earth System Science, College of Urban and Environmental Sciences, Peking University, Beijing, China; Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Beijing, China; Chinese Academy of Sciences Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing, China; Laboratoire des Sciences du Climat et de l'Environnement, CEA CNRS UVSQ, Gif Sur Yvette, France; School of Natural Resources and the Environment, The University of Arizona, Tucson, AZ, United States
Recommended Citation:
Liu Y.,Piao S.,Lian X.,et al. Seasonal responses of terrestrial carbon cycle to climate variations in CMIP5 models: Evaluation and projection[J]. Journal of Climate,2017-01-01,30(16)