气候变化领域集成服务门户(CCPortal): Global apparent temperature sensitivity of terrestrial carbon turnover modulated by hydrometeorological factors

CCPortal

DOI	10.1038/s41561-022-01074-2
	Global apparent temperature sensitivity of terrestrial carbon turnover modulated by hydrometeorological factors
	Fan, Naixin; Reichstein, Markus; Koirala, Sujan; Ahrens, Bernhard; Mahecha, Miguel D.; Carvalhais, Nuno
发表日期	2022
ISSN	1752-0894
EISSN	1752-0908
起始页码	989
结束页码	+
卷号	15 期号:12 页码:15
英文摘要	The ecosystem carbon turnover time-an emergent ecosystem property that partly determines the feedback between the terrestrial carbon cycle and climate-is strongly controlled by temperature. However, it remains uncertain to what extent hydrometeorological conditions may influence the apparent temperature sensitivity of t, defined as the factor by which the carbon turnover time increases with a 10 degrees C rise in temperature (Q(10)). Here, we investigate the responses of the ecosystem carbon turnover to temperature and hydrometeorological factors using an ensemble of observation-based global datasets and a global compilation of in situ measurements. We find that temperature and hydrometeorology are almost equally important in shaping the spatial pattern of ecosystem carbon turnover, explaining 60 and 40% of the global variability, respectively. Accounting for hydrometeorological effects puts a strong constraint on Q(10) values with a substantial reduction in magnitude and uncertainties, leading Q(10) to converge to 1.6 +/- 0.1 globally. These findings suggest that hydrometeorological conditions modulate the apparent temperature sensitivity of terrestrial carbon turnover times, confounding the role of temperature in quantifying the response of the carbon cycle to climate change.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000928399600006
来源期刊	NATURE GEOSCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272475
作者单位	Max Planck Society; Technische Universitat Dresden; Helmholtz Association; Helmholtz Center for Environmental Research (UFZ); Universidade Nova de Lisboa
推荐引用方式 GB/T 7714	Fan, Naixin,Reichstein, Markus,Koirala, Sujan,et al. Global apparent temperature sensitivity of terrestrial carbon turnover modulated by hydrometeorological factors[J],2022,15(12):15.
APA	Fan, Naixin,Reichstein, Markus,Koirala, Sujan,Ahrens, Bernhard,Mahecha, Miguel D.,&Carvalhais, Nuno.(2022).Global apparent temperature sensitivity of terrestrial carbon turnover modulated by hydrometeorological factors.NATURE GEOSCIENCE,15(12),15.
MLA	Fan, Naixin,et al."Global apparent temperature sensitivity of terrestrial carbon turnover modulated by hydrometeorological factors".NATURE GEOSCIENCE 15.12(2022):15.