气候变化领域集成服务门户(CCPortal): Interannual variation of terrestrial carbon cycle: Issues and perspectives

CCPortal

DOI	10.1111/gcb.14884
	Interannual variation of terrestrial carbon cycle: Issues and perspectives
	Piao, Shilong; Wang, Xuhui; Wang, Kai; Li, Xiangyi; Bastos, Ana; Canadell, Josep G.; Ciais, Philippe; Friedlingstein, Pierre; Sitch, Stephen
通讯作者	Piao, S (通讯作者)
发表日期	2020
ISSN	1354-1013
EISSN	1365-2486
起始页码	300
结束页码	318
卷号	26 期号:1
英文摘要	With accumulation of carbon cycle observations and model developments over the past decades, exploring interannual variation (IAV) of terrestrial carbon cycle offers the opportunity to better understand climate-carbon cycle relationships. However, despite growing research interest, uncertainties remain on some fundamental issues, such as the contributions of different regions, constituent fluxes and climatic factors to carbon cycle IAV. Here we overviewed the literature on carbon cycle IAV about current understanding of these issues. Observations and models of the carbon cycle unanimously show the dominance of tropical land ecosystems to the signal of global carbon cycle IAV, where tropical semiarid ecosystems contribute as much as the combination of all other tropical ecosystems. Vegetation photosynthesis contributes more than ecosystem respiration to IAV of the global net land carbon flux, but large uncertainties remain on the contribution of fires and other disturbance fluxes. Climatic variations are the major drivers to the IAV of net land carbon flux. Although debate remains on whether the dominant driver is temperature or moisture variability, their interaction,that is, the dependence of carbon cycle sensitivity to temperature on moisture conditions, is emerging as key regulators of the carbon cycle IAV. On timescales from the interannual to the centennial, global carbon cycle variability will be increasingly contributed by northern land ecosystems and oceans. Therefore, both improving Earth system models (ESMs) with the progressive understanding on the fast processes manifested at interannual timescale and expanding carbon cycle observations at broader spatial and longer temporal scales are critical to better prediction on evolution of the carbon-climate system.
关键词	CO2 GROWTH-RATE GLOBAL FIRE EMISSIONS ATMOSPHERIC CO2 LAND-USE FUTURE CLIMATE THROUGHFALL EXCLUSION EMERGENT CONSTRAINTS DROUGHT SENSITIVITY SEMIARID ECOSYSTEMS VEGETATION DYNAMICS
英文关键词	carbon cycle; carbon-climate system; interaction of climatic factors; interannual variability; moisture; semiarid; temperature; terrestrial ecosystems
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:000499286800001
来源期刊	GLOBAL CHANGE BIOLOGY
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/260086
推荐引用方式 GB/T 7714	Piao, Shilong,Wang, Xuhui,Wang, Kai,et al. Interannual variation of terrestrial carbon cycle: Issues and perspectives[J]. 中国科学院青藏高原研究所,2020,26(1).
APA	Piao, Shilong.,Wang, Xuhui.,Wang, Kai.,Li, Xiangyi.,Bastos, Ana.,...&Sitch, Stephen.(2020).Interannual variation of terrestrial carbon cycle: Issues and perspectives.GLOBAL CHANGE BIOLOGY,26(1).
MLA	Piao, Shilong,et al."Interannual variation of terrestrial carbon cycle: Issues and perspectives".GLOBAL CHANGE BIOLOGY 26.1(2020).