Sex‐specific, age‐dependent sensitivity of tree‐ring growth to climate in the dioecious tree <i>Juniperus thurifera</i>

Rozas, Vicente; DeSoto, Lucía; Olano, José Miguel

doi:10.1111/j.1469-8137.2009.02770.x

Cited by 154 publications

(135 citation statements)

References 58 publications

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“…In the last decades, increasing evidence suggests that tree response to the climate is modulated by several endogenous factors, such as the genotype [11], age [12], size [13], and sex [14], in addition to exogenous factors of abiotic [15] and biotic nature [16,17]. Thus, population-based approaches might miss part of the wide range of individual responses that exist within a stand [18], obliterating different sources of variability that could contribute to more adequate management policies, or simply provide a better prediction of the individual growth responses to climate.…”

Section: Introductionmentioning

confidence: 99%

Variation in the Climate Sensitivity Dependent on Neighbourhood Composition in a Secondary Mixed Forest

Laskurain

Aldezábal

Odriozola

et al. 2018

Forests

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Understanding the vulnerability of individual trees to climate requires moving from population to individual level. This study evaluates individual tree response in a mixed forest by assessing how size and neighbourhood density modulated growth responses to climate among coexisting tree species. To understand the complete variation in growth responses to climate, it is necessary to consider intrapopulation variability. Trees respond as individual entities, and their response is modulated by their characteristics and neighbourhood context. To assess the individual climate sensitivity, all living Iberian birches, European beeches, and pedunculate oaks trees located in a temperate mixed forest were cored in four 40 m × 40 m plots. Standard ring-width chronologies were built at tree and species level for the 1977-2007 period. Chronologies were related to climatic variables (monthly precipitation, hailstorm and mean temperature, and summer (June-August) precipitation). Growth response to climate varied among species and individual trees. Differences in climate-growth relationship among species could be partially attributed to the different xylem anatomy, since secondary growth of ring-porous pedunculate oak (Quercus robur L.) was mainly dependent on the previous-winter climatic conditions (January temperature), while for the diffuse-porous Iberian birch (Betula celtiberica Rothm. and Vasc.) and European beech (Fagus sylvatica L.), spring temperature and summer precipitation were the major constraining factors of growth. Tree features and identity of neighbourhood modulated climatic response, especially for Iberian birch and pedunculate oak. Dominant trees in less crowded neighbourhoods responded more intensely to climate factors. Understanding the individual variability of growth responses to climate will provide more realistic predictions of forests response to climate change.

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Section: Introductionmentioning

confidence: 99%

Variation in the Climate Sensitivity Dependent on Neighbourhood Composition in a Secondary Mixed Forest

Laskurain

Aldezábal

Odriozola

et al. 2018

Forests

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“…Previous dendroclimatic studies in central Spain and the French Pyrenees have shown that secondary growth of /. thurifera is mainly controlled by winter precipitation, spring temperature, and summer water stress (Bertaudiére et al 1999;Rozas et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Intra-annual patterns of tracheid size in the Mediterranean tree Juniperus thurifera as an indicator of seasonal water stress

2011

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Because climate can affect xylem cell anatomy, series of intra-annual cell anatomical features have the potential to retrospectively supply seasonal climatic information. In this study, we explored the ability to extract information about water stress conditions from tracheid features of the Mediterranean conifer Juniperus thurifera L. Tracheidograms of four climatic years from two drought-sensitive sites in Spain were compared to evaluate whether it is possible to link intra-annual cell size patterns to seasonal climatic conditions. Results indicated site-specific anatomical adjustment such as smaller and thicker tracheids at the dryer site but also showed a strong climatic imprint on the intra-annual pattern of tracheid size. Site differences in cell size reflected expected structural adjustments against cavitation failures. Differences between intra-annual patterns, however, indicated a response to seasonal changes in water availability whereby cells formed under drought conditions were smaller and thicker, and vice versa. This relationship was more manifest and stable at the dryer site.Resume : Etant donné que le climat peut influencer l'anatomie des cellules du xyléme, il est possible que des sequences des caractéristiques anatomiques intra-annuelles des cellules puissent, rétrospectivement, fournir des informations climatiques saisonniéres. Dans cette etude, nous avons exploré la capacité d'extraire de l'information au sujet des conditions de stress hydrique a partir des caractéristiques des trachéides du Juniperus thurifera L., un conifére de la region méditerranéenne. Les trachéidogrammes de quatre années climatiques provenant de deux stations sujettes a la sécheresse en Espagne ont été compares pour évaluer s'il est possible de relier le patron intra-annuel de la dimension des cellules et les conditions climatiques saisonniéres. Les résultats ont montré qu'il y avait une adaptation anatomique spécifique a la station, telle que des trachéides plus petites et plus épaisses dans la station la plus séche, mais qu'il y avait aussi une forte empreinte climatique dans le patron intra-annuel de la dimension des trachéides. Les differences entre les stations quant a la dimension des cellules reflétaient les adaptations structurales previsibles pour prevenir les accidents dus a la cavitation. Cependant, les differences entre les patrons intra-annuels étaient dues a une reaction aux changements saisonniers dans la disponibilité en eau, a la suite de laquelle les cellules formées dans des conditions de sécheresse étaient plus petites et plus épaisses et vice-versa. Cette relation était plus evidente et stable dans la station la plus séche.[Traduit par la Redaction]

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“…Tree growth at an old age can be more limited by climate, as growth trend can be relatively more stable in old trees compared to younger trees [43][44][45][46]. Hence, our projections here might be biased towards old trees.…”

Section: Discussionmentioning

confidence: 89%

Climate-Induced Tree Growth Variations under the RCP 2.6 Scenario: A Case Study on the Southeastern Tibetan Plateau

Zhang

Zou

Chen

2017

Forests

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Abstract:The relationship between climate and radial tree growth is traditionally used to reconstruct past climate conditions based on interannual tree-ring variations. However, few studies have used these climate-growth relationships to model the radial tree growth based on future climate projections. To detect the future forest dynamics, the climate-induced tree growth from 2006 to 2100 was projected using temperature changes under representative concentration pathway (RCP) 2.6 for the southeastern Tibetan Plateau. Radial tree growth was mainly controlled by annual mean temperature in this region. Based on the relationship between regional annual mean temperature and radial tree growth, a regression model was built that explained 62.5% of variance in the observed temperature record over the period . A period of unprecedented radial tree growth was found after 1998 when compared with the tree growth in the past 700 years. We found that radial tree growth would increase in the period 2006-2045 and decline after that period due to the projected temperature decrease. As forest productivity and biomass are expected to increase with the increased tree growth, these results suggest that temperature-limited systems could see future increases in productivity as growth limitations are lessened. The results of this research could be used to predict regional forest dynamics in the future.

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Sex‐specific, age‐dependent sensitivity of tree‐ring growth to climate in the dioecious tree Juniperus thurifera

Cited by 154 publications

References 58 publications

Variation in the Climate Sensitivity Dependent on Neighbourhood Composition in a Secondary Mixed Forest

Variation in the Climate Sensitivity Dependent on Neighbourhood Composition in a Secondary Mixed Forest

Intra-annual patterns of tracheid size in the Mediterranean tree Juniperus thurifera as an indicator of seasonal water stress

Climate-Induced Tree Growth Variations under the RCP 2.6 Scenario: A Case Study on the Southeastern Tibetan Plateau

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