气候变化领域集成服务门户(CCPortal): Physiological meaning of bimodal tree growth-climate response patterns

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DOI	10.1007/s00484-024-02706-5
	Physiological meaning of bimodal tree growth-climate response patterns
	Buentgen, Ulf; Esper, Jan
发表日期	2024
ISSN	0020-7128
EISSN	1432-1254
英文摘要	Correlation coefficients are widely used to identify and quantify climate signals in proxy archives. Significant relationships between tree-ring chronologies and meteorological measurements are typically applied by dendroclimatologists to distinguish between more or less relevant climate variation for ring formation. While insignificant growth-climate correlations are usually found with cold season months, we argue that weak relationships with high summer temperatures not necessarily disprove their importance for xylogenesis. Here, we use maximum latewood density records from ten treeline sites between northern Scandinavia and southern Spain to demonstrate how monthly growth-climate correlations change from narrow unimodal to wide bimodal seasons when vegetation periods become longer and warmer. Statistically meaningful relationships occur when minimum temperatures exceed 'biological zero' at around 5 degrees C. We conclude that the absence of evidence for statistical significance between tree growth and the warmest summer temperatures at Mediterranean sites is no evidence of absence for the physiological importance of high summer temperatures for ring formation. Since correlation should never be confused with causation, statistical values require mechanistic understanding, and different interpretations are needed for insignificant correlations within and outside the growing season.
英文关键词	Climate change; Dendrochronology; Global warming; Forest ecology; Tree rings
语种	英语
WOS研究方向	Biophysics ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences ; Physiology
WOS类目	Biophysics ; Environmental Sciences ; Meteorology & Atmospheric Sciences ; Physiology
WOS记录号	WOS:001236072700001
来源期刊	INTERNATIONAL JOURNAL OF BIOMETEOROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/293408
作者单位	University of Cambridge; Czech Academy of Sciences; Global Change Research Centre of the Czech Academy of Sciences; Masaryk University Brno; Johannes Gutenberg University of Mainz
推荐引用方式 GB/T 7714	Buentgen, Ulf,Esper, Jan. Physiological meaning of bimodal tree growth-climate response patterns[J],2024.
APA	Buentgen, Ulf,&Esper, Jan.(2024).Physiological meaning of bimodal tree growth-climate response patterns.INTERNATIONAL JOURNAL OF BIOMETEOROLOGY.
MLA	Buentgen, Ulf,et al."Physiological meaning of bimodal tree growth-climate response patterns".INTERNATIONAL JOURNAL OF BIOMETEOROLOGY (2024).