气候变化领域集成服务门户(CCPortal): Seasonal precipitation and continentality drive bimodal growth in Mediterranean forests

CCPortal

DOI	10.1016/j.dendro.2023.126057
	Seasonal precipitation and continentality drive bimodal growth in Mediterranean forests
	Valeriano, Cristina; Gutierrez, Emilia; Colangelo, Michele; Gazol, Antonio; Sanchez-Salguero, Raul; Tumajer, Jan; Shishov, Vladimir; Bonet, Jose Antonio; de Aragon, Juan Martinez; Ibanez, Ricardo; Valerio, Mercedes; Camarero, J. Julio
发表日期	2023
ISSN	1125-7865
EISSN	1612-0051
卷号	78
英文摘要	Tree phenology is sensitive to climate warming and changes in seasonal precipitation. Long xylogenesis records are scarce, thus limiting our ability to analyse how radial growth responds to climate variability. Alternatively, process-based growth models can be used to simulate intra-annual growth dynamics and to better understand why growth bimodality varies along temperature and precipitation gradients. We used the Vaganov-Shashkin (VS) growth model to analyse the main climatic drivers of growth bimodality in eight trees and shrubs co-nifers (four pines and four junipers) across Spain. We selected eleven sites with different continentality degree and spring/autumn precipitation ratios since we expected to find pronounced bimodal growth in less continental sites with spring and autumn precipitation peaks. The VS model successfully simulated annual growth rates at all sites as a function of daily temperature and soil moisture data. Bimodal growth patterns clustered into less continental sites showing low spring/autumn precipitation ratios. This finding agrees with observed climate -growth associations showing that growth was enhanced by wet-cool winter-to-spring conditions, but also by wet autumn conditions in the most bimodal sites. We observed a stronger growth bimodality in pines compared to junipers. We discuss the spatial variability of climate drivers in bimodality growth pattern and how increasing continentality and shifts in seasonal precipitation could affect growth patterns. Bimodality could be an advan-tageous response to overcome summer drought in Mediterranean forests. The ability of some species to reactivate growth during autumn might determine their capacity to withstand increasing summer aridity.
英文关键词	Juniperus; Vaganov-Shashkin model; Phenology; Pinus; Radial growth; Xylogenesis
语种	英语
WOS研究方向	Forestry ; Geography, Physical
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000964756600001
来源期刊	DENDROCHRONOLOGIA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281197
作者单位	Consejo Superior de Investigaciones Cientificas (CSIC); Universidad Politecnica de Madrid; University of Barcelona; Universidad Pablo de Olavide; Charles University Prague; Siberian Federal University; Universitat de Lleida; University of Navarra
推荐引用方式 GB/T 7714	Valeriano, Cristina,Gutierrez, Emilia,Colangelo, Michele,et al. Seasonal precipitation and continentality drive bimodal growth in Mediterranean forests[J],2023,78.
APA	Valeriano, Cristina.,Gutierrez, Emilia.,Colangelo, Michele.,Gazol, Antonio.,Sanchez-Salguero, Raul.,...&Camarero, J. Julio.(2023).Seasonal precipitation and continentality drive bimodal growth in Mediterranean forests.DENDROCHRONOLOGIA,78.
MLA	Valeriano, Cristina,et al."Seasonal precipitation and continentality drive bimodal growth in Mediterranean forests".DENDROCHRONOLOGIA 78(2023).