气候变化领域集成服务门户(CCPortal): Seasonal Responses of Terrestrial Carbon Cycle to Climate Variations in CMIP5 Models: Evaluation and Projection

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DOI	10.1175/JCLI-D-16-0555.1
	Seasonal Responses of Terrestrial Carbon Cycle to Climate Variations in CMIP5 Models: Evaluation and Projection
	Liu, Yongwen; Piao, Shilong; Lian, Xu; Ciais, Philippe; Smith, W. Kolby
通讯作者	Piao, SL (通讯作者)
发表日期	2017
ISSN	0894-8755
EISSN	1520-0442
起始页码	6481
结束页码	6503
卷号	30 期号:16
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-based NBP 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 in MAM due to an increased temperature sensitivity of NPP. Across all biomes, projected temperature sensitivity of NPP decreased in JJA and SON. Projected precipitation sensitivity of NBP did not change across biomes, except over grasslands in MAM.
关键词	LAND-SURFACE PHENOLOGY VEGETATION PHENOLOGY NORTHERN-HEMISPHERE TEMPORAL DYNAMICS GLOBAL-SCALE FOREST CO2 PRECIPITATION PRODUCTIVITY TEMPERATURE
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000406040200024
来源期刊	JOURNAL OF CLIMATE
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/259083
推荐引用方式 GB/T 7714	Liu, Yongwen,Piao, Shilong,Lian, Xu,et al. Seasonal Responses of Terrestrial Carbon Cycle to Climate Variations in CMIP5 Models: Evaluation and Projection[J]. 中国科学院青藏高原研究所,2017,30(16).
APA	Liu, Yongwen,Piao, Shilong,Lian, Xu,Ciais, Philippe,&Smith, W. Kolby.(2017).Seasonal Responses of Terrestrial Carbon Cycle to Climate Variations in CMIP5 Models: Evaluation and Projection.JOURNAL OF CLIMATE,30(16).
MLA	Liu, Yongwen,et al."Seasonal Responses of Terrestrial Carbon Cycle to Climate Variations in CMIP5 Models: Evaluation and Projection".JOURNAL OF CLIMATE 30.16(2017).