气候变化领域集成服务门户(CCPortal): Inter-specific tolerance to recurrent droughts of pine species revealed in saplings rather than adult trees

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DOI	10.1016/j.foreco.2019.117848
	Inter-specific tolerance to recurrent droughts of pine species revealed in saplings rather than adult trees
	Andivia E.; Ruiz-Benito P.; Díaz-Martínez P.; Carro-Martínez N.; Zavala M.A.; Madrigal-González J.
发表日期	2020
ISSN	0378-1127
卷号	459
英文摘要	Understanding species’ tolerance to recurrent extreme droughts is key to predict species’ performance and forest dynamics under ongoing climate change. Inter-specific differences in juvenile responses can largely shape forest composition and structure. However, the vulnerability of tree species is typically evaluated in adult canopy dominant individuals. The question of whether inter-specific differences in drought tolerance vary between adult and young trees remains largely unexplored. We sampled canopy dominant trees and saplings of three co-occurring pine species with different drought tolerance (Pinus pinaster, P. nigra and P. sylvestris) in a relict forest in the Northern Iberian plateau. Using basal area increment in canopy dominant trees and shoot elongation in saplings, we reconstructed annual growth for the period 2000–2015 and calculated resilience and resistance indices to two consecutive extreme droughts (2005 and 2012). We used generalized least square models to analyze species-specific differences in resistance and resilience in adults and saplings, respectively after accounting for tree size and stand basal area effects. In addition, we recorded living and dead saplings to assess inter-specific dissimilarities after the drought events. Drought events strongly reduced the growth of both adults and saplings (40% on average), but they were more resilient to the 2005 than to the 2012 drought. Increased magnitude and frequency of drought events led to inter-specific differences in drought responses, which were revealed in saplings rather than adults after the 2012 drought. P. pinaster saplings were more resilient than P. nigra and P. sylvestris, consistently to the drought stress experienced by each species in the dry-edge of their natural ranges. Moreover, a greater recruitment and similar sapling mortality confirm P. pinaster as the most successful pine species from a demographic perspective. In addition, tree size reduced resilience whereas basal area in the tree neighborhood did not show any significant effect on pine tolerance to drought. In conclusion, we showed that increased the magnitude and frequency of drought events uncovers species-specific differences in drought resilience in saplings rather than adults. Our results suggest potential shifts in the dominance of P. pinaster as the expense of P. nigra and P. sylvestris under climate change in this relict forest. This highlights the need to include juveniles and demographic rates in models aiming to describe and predict species responses to climate change in dry-edge forests. © 2019 Elsevier B.V.
英文关键词	Climate change; Dendroecology; Forest dynamics; Growth stability; Resilience; Resistance
语种	英语
scopus关键词	Agronomy; Climate change; Climate models; Drought; Electric resistance; Forecasting; Least squares approximations; Population statistics; Basal area increment; Dendroecology; Drought tolerances; Forest compositions; Forest dynamics; Generalized least square; Juvenile response; Resilience; Forestry; basal area; climate change; coniferous tree; dominance; drought; drought stress; forest dynamics; juvenile; mortality; sapling; Agronomy; Drought; Electric Resistance; Forecasts; Forestry; Resilience; Pinus pinaster
来源期刊	Forest Ecology and Management (IF:3.126[JCR-2018],3.601[5-Year])
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155514
作者单位	Departamento de Biodiversidad, Ecología y Evolución, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid, Spain; Department of Geology, Geography and the Environment, University of Alcala, Spain; Forest Ecology and Restoration Group, Departamento de Ciencias de la Vida, Universidad de Alcala, Spain; Departamento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Spain; Instituto Franklin, University of Alcala, Spain; Climate Change Impacts and Risks in the Anthropocene, Institute for Environmental Sciences, University of Geneva, Switzerland
推荐引用方式 GB/T 7714	Andivia E.,Ruiz-Benito P.,Díaz-Martínez P.,et al. Inter-specific tolerance to recurrent droughts of pine species revealed in saplings rather than adult trees[J],2020,459.
APA	Andivia E.,Ruiz-Benito P.,Díaz-Martínez P.,Carro-Martínez N.,Zavala M.A.,&Madrigal-González J..(2020).Inter-specific tolerance to recurrent droughts of pine species revealed in saplings rather than adult trees.Forest Ecology and Management,459.
MLA	Andivia E.,et al."Inter-specific tolerance to recurrent droughts of pine species revealed in saplings rather than adult trees".Forest Ecology and Management 459(2020).