气候变化领域集成服务门户(CCPortal): Changes in interannual climate sensitivities of terrestrial carbon fluxes during the 21st century predicted by CMIP5 Earth System Models

CCPortal

DOI	10.1002/2015JG003124
	Changes in interannual climate sensitivities of terrestrial carbon fluxes during the 21st century predicted by CMIP5 Earth System Models
	Liu, Yongwen; Wang, Tao; Huang, Mengtian; Yao, Yitong; Ciais, Philippe; Piao, Shilong
通讯作者	Piao, SL (通讯作者)
发表日期	2016
ISSN	2169-8953
EISSN	2169-8961
起始页码	903
结束页码	918
卷号	121 期号:3
英文摘要	Terrestrial carbon fluxes are sensitive to climate change, but the interannual climate sensitivity of the land carbon cycle can also change with time. We analyzed the changes in responses of net biome production (NBP), net primary production (NPP), and heterotrophic respiration (Rh) to interannual climate variations over the 21st century in the Earth System Models (ESMs) from the Coupled Model Intercomparison Project 5. Under Representative Concentration Pathway (RCP) 4.5, interannual temperature sensitivities of NBP ((Temp)(NBP)), NPP ((Temp)(NPP)), and Rh ((Temp)(Rh)) remain relatively stable at global scale, yet with large differences among ESMs and spatial heterogeneity. Modeled (Temp)(NPP) and (Temp)(Rh) appear to increase in parallel in boreal regions, resulting in unchanged (Temp)(NBP). Tropical (Temp)(NBP) decreases in most models, due to decreasing (Temp)(NPP) and relatively stable (Temp)(Rh). Across models, the changes in (Temp)(NBP) can be mainly explained by changes in (Temp)(NPP) rather than changes in (Temp)(Rh), at both global and regional scales. Interannual precipitation sensitivities of global NBP ((Prec)(NBP)), NPP ((Prec)(NPP)), and Rh ((Prec)(Rh)) are predicted not to change significantly, with large differences among ESMs. Across models, the changes in (Prec)(NBP) can be mainly explained by changes in (Prec)(NPP) rather than changes in (Prec)(Rh) in temperate regions, but not in other regions. Changes in the interannual climate sensitivities of carbon fluxes are consistent across RCPs 4.5, 6.0, and 8.5 but larger in more intensive scenarios. More effort should be considered to improve terrestrial carbon flux responses to interannual climate variability, e.g., incorporating biogeochemical processes of nutrient limitation, permafrost dynamics, and microbial decomposition.
关键词	PERMAFROST CARBON TEMPERATURE SENSITIVITY SEMIARID ECOSYSTEMS FOREST DIEBACK CYCLE RESPIRATION DROUGHT CO2 VARIABILITY PHOTOSYNTHESIS
英文关键词	net biome production; net primary production; heterotrophic respiration; Representative Concentration Pathway; climate change; terrestrial carbon cycle
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS记录号	WOS:000374345000020
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
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/258834
推荐引用方式 GB/T 7714	Liu, Yongwen,Wang, Tao,Huang, Mengtian,et al. Changes in interannual climate sensitivities of terrestrial carbon fluxes during the 21st century predicted by CMIP5 Earth System Models[J]. 中国科学院青藏高原研究所,2016,121(3).
APA	Liu, Yongwen,Wang, Tao,Huang, Mengtian,Yao, Yitong,Ciais, Philippe,&Piao, Shilong.(2016).Changes in interannual climate sensitivities of terrestrial carbon fluxes during the 21st century predicted by CMIP5 Earth System Models.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,121(3).
MLA	Liu, Yongwen,et al."Changes in interannual climate sensitivities of terrestrial carbon fluxes during the 21st century predicted by CMIP5 Earth System Models".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 121.3(2016).