气候变化领域集成服务门户(CCPortal): Non-pooled oak (Quercus spp.) stable isotopes reveal enhanced climate sensitivity compared to ring widths

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DOI	10.3354/cr01632
	Non-pooled oak (Quercus spp.) stable isotopes reveal enhanced climate sensitivity compared to ring widths
	Rybníček M.; Kolář T.; Ač A.; Balek J.; Koňasová E.; Trnka M.; Urban O.; Büntgen U.
发表日期	2021
ISSN	0936-577X
卷号	83
英文摘要	Multi-centennial to millennial-long oak (Quercus spp.) tree-ring width (TRW) chronologies from living and relict wood are frequently used for climate reconstructions, but the amount of explained hydroclimatic variation remains relatively small. Although stable carbon and oxygen isotopic ratios (δ13C and δ18O values) in tree rings may offer enhanced climate sensitivity, our understanding of their paleoclimatic sensitivity is still limited by the general lack of well-replicated and high-resolution datasets. Here, we assessed the temperature, precipitation, and drought signal of annual δ13C and δ18O values and TRW measurements from 21 oaks growing under different ecological settings in the Czech Republic. Compared to the overall low climate sensitivity of TRW, the δ13C and δ18O chronologies revealed significant positive and negative correlations with March−August mean temperature and hydroclimate (for the period 1901-2018), respectively. Additional tests on the effect of sample size demonstrated robust climate sensitivity of the isotopic chronologies when non-pooled alpha cellulose from the latewood of at least 6 individual oaks was used. Our study suggests that oak stable isotopes are possibly the best high-resolution paleoclimatic proxy for the Central European lowlands, as well as any other temperate habitat where oak wood has historically been used as construction timber, and where traditional tree-ring parameters, such as TRW, tend to fail. © Inter-Research 2021 · www.int-res.com
英文关键词	Carbon isotope; Czech Republic; Dendroclimatology; Oak; Oxygen isotope; Paleoclimate; Quercus spp; Tree rings
来源期刊	Climate Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183806
作者单位	Department of Wood Science and Wood Technology, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, 613 00, Czech Republic; Global Change Research Institute of the Czech Academy of Sciences, Brno, 603 00, Czech Republic; Department of Agrosystems and Bioclimatology, Faculty of Agronomy, Mendel University in Brno, Brno, 613 00, Czech Republic; Department of Geography, University of Cambridge, Cambridge, CB2 3EN, United Kingdom; Swiss Federal Research Institute WSL, Birmensdorf, 8903, Switzerland; Department of Geography, Masaryk University, Brno, 611 37, Czech Republic
推荐引用方式 GB/T 7714	Rybníček M.,Kolář T.,Ač A.,et al. Non-pooled oak (Quercus spp.) stable isotopes reveal enhanced climate sensitivity compared to ring widths[J],2021,83.
APA	Rybníček M..,Kolář T..,Ač A..,Balek J..,Koňasová E..,...&Büntgen U..(2021).Non-pooled oak (Quercus spp.) stable isotopes reveal enhanced climate sensitivity compared to ring widths.Climate Research,83.
MLA	Rybníček M.,et al."Non-pooled oak (Quercus spp.) stable isotopes reveal enhanced climate sensitivity compared to ring widths".Climate Research 83(2021).