Tree rings reflect growth adjustments and enhanced synchrony among sites in Iberian stone pine (Pinus pinea L.) under climate change

Natalini, Fabio; Correia, Alexandra; Vázquez‐Piqué, Javier; Alejano, Reyes

doi:10.1007/s13595-015-0521-6

Cited by 32 publications

(30 citation statements)

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“…In our study sites, climatic changes over time drove the shift of the growth-climate response patterns, as also reported in other tree-ring studies (Martín-Benito et al, 2010;Latte et al, 2015). This suggests an adjustment of growth physiology during the life of trees in response to a warmer and drier climate, as discussed in a previous study (Natalini et al, 2015). However, the response shifts observed in the present study also seem to be mediated by site-specific climate dynamics.…”

Section: Spatiotemporal Variability Of Growth-climate Relationshipssupporting

confidence: 89%

“…For instance, previous research in Portuguese stands of Pinus pinaster, a species ecologically close to P. pinea, indicates some cambial activity during winter, although evidences are restricted to coastal (oceanic) zones during mild winters (Vieira et al, 2014). The tree-ring growth response of P. pinea during winter, also previously reported in Spain and Italy (de Luis et al, 2009;Mazza et al, 2014;Natalini et al, 2015), may reflect that this species can be physiologically active during winter (Pardos et al, 2010). In fact, cells in differentiation during winter have been observed in P. pinea in coastal areas of central Portugal, although this needs further investigation (Luz et al, 2014).…”

Section: Spatiotemporal Variability Of Growth-climate Relationshipsmentioning

confidence: 62%

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Spatiotemporal variability of stone pine ( Pinus pinea L.) growth response to climate across the Iberian Peninsula

et al. 2016

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Climate warming and increasing aridity have impacted diverse ecosystems in the Mediterranean region since at least the 1970s. Pinus pinea L. has significant environmental and socio-economic importance for the Iberian Peninsula, so a detailed understanding of its response to climate change is necessary to predict its status under future climatic conditions. However, variability of climate and uncertainties in dendroclimatological approach complicate the understanding of forest growth dynamics. We use an ensemble approach to analyze growthclimate responses of P. pinea trees from five sites along a latitudinal gradient in Spain over time. The growth responses to April-June precipitation totals were stronger in the north than in the south. Since the 1950s, the sensitivity of growth to April-June precipitation increased in the north and decreased in the south.Meteorological drought usually started in May in the southern sites, but in June-July in the northern sites. The water deficit in the southern sites is thus greater and more limiting for tree growth, and this likely accounts for the lower growth sensitivity during these months. Our results indicate that P. pinea has a high degree of plasticity, suggesting the species will withstand changing climatic conditions. However, growth response to drought regimes varies among P. pinea populations, suggesting that different populations have different capacities for acclimation to warmer and drier climate, and this may influence future vegetation composition.

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Section: Spatiotemporal Variability Of Growth-climate Relationshipssupporting

confidence: 89%

Section: Spatiotemporal Variability Of Growth-climate Relationshipsmentioning

confidence: 62%

Spatiotemporal variability of stone pine ( Pinus pinea L.) growth response to climate across the Iberian Peninsula

et al. 2016

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“…Table 2. Comparison between the holm oak chronologies (HR and CA) and the reference chronologies of P. pinea from Valverde del Camino (Natalini et al, 2015) and Q. ilex from Cáceres (Gea-Izquierdo et al, 2011). Glk is the coefficient of parallel variation ("Gleichlaeufigkeit"); CDI is the cross-date index.…”

Section: Discussionmentioning

confidence: 99%

“…Shifts in the correlation between growth and climate can reflect climate change impacts on tree phenology (Morin et al, 2010) and have been related to warming and increasing aridity in previous studies on Iberian Q. ilex (Gea-Izquierdo et al, 2009) and other Mediterranean species (e.g. Di Filippo et al, 2010;Natalini et al, 2015). In our study region, meteorological records did not describe any long-term increase in winter precipitation (Supplementary material 3), which thus do not explain the increase in the growth response.…”

Section: Trees Show Sensitivity To Increasing Droughtmentioning

confidence: 98%

“…Tree ages were estimated by counting the number of annual rings on the cross-dated chronologies. To assure that annual rings were correctly identified and dated, we compared the chronologies from CA and HR with a previously established chronology of Pinus pinea from a close site ("Valverde del Camino", see Natalini et al, 2015) The individual cross-dated ring-width series were detrended by applying a smoothing spline with a 50% frequency cutoff at 32 years. The growth index was computed using the ratio between the measured raw ring width and the value of the smoothing spline (Cook et al, 1990a).…”

Section: Sampling and Dendrochronological Analysesmentioning

confidence: 99%

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The role of climate change in the widespread mortality of holm oak in open woodlands of Southwestern Spain

et al. 2016

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2 Highlights We obtained robust dendroclimatic signal in Quercus ilex from low latitudes in Iberia. We report massive die-off of Quercus ilex trees in SW Iberia. Tree growth was strongly controlled by climatic shifts in recent decades. Warmer climate with longer droughts had a key-role determining the mortality process. 3 AbstractForest decline and increasing tree mortality are of global concern and the identification of the causes is necessary to develop preventive measures. Global warming is an emerging factor responsible for the increasing tree mortality in drought-prone ecosystems. In the southwestern Iberian Peninsula, Mediterranean holm oak open woodlands currently undergo large-scale population-level tree die-off. In this region, temperature and aridity have increased during recent decades, but the possible role of climate change in the current oak mortality has not been investigated.To assess the role of climate change in oak die-off in managed open woodlands in southwestern Spain, we analyzed climate change-related signals in century-long tree ring chronologies of dead holm oaks. We examined the high/lowfrequency variability in growth and the relationship between growth and climate.Similar to other Mediterranean forests, growth was favored by precipitation from autumn of the year prior to ring formation to spring of the year of ring formation, whereas high temperatures during spring limited growth. Since the 1970s, the intensity of the high-frequency response to water availability increased simultaneously with temperature and aridity. The growth trends matched those of climatic changes. Growth suppressions occurred during droughts in the 1970s, 1980s and 1990s. Widespread stand-level, age-independent mortality occurred since 2005 and affected trees that can not be considered old for the species standards.The close relationship between growth and climate indicate that climate change strongly controlled the growth patterns.This suggests that harsher climatic conditions, especially increased aridity, affected the tree performance and could have played a significant role in the mortality process. Climate change may have exacerbated or predisposed trees to the impact of other factors (e.g. intense management and pathogens). These observations could suggest a similar future increase in oak mortality which may occur in more northern oak open woodlands if aridity further increases.

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Will drought exacerbate the decline in the sustainability of plantation forests relative to natural forests?

et al. 2022

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Occupying 7% of the World's forest area, plantation forests have been increasing globally for the past 30 years and serve as a natural climate solution. However, whether plantation forests share the same fate as natural forests under the changing climate remains an open question. By establishing a framework in which climate directly and indirectly triggers or exacerbates fire and pests to affect forest vitality, we compared the vitality and resilience of 705 large plantation patches and 187 large natural forest patches over the past 20 years in China. Overall, large patches of plantation forests showed consistent sustainability with natural forests across China and were mainly distributed in humid areas with the fewest and weakest droughts. Forty percent of the vitality decline of natural forests was explained by droughts, pests, and fires driven by climate, while 70% of the vitality decline of plantation forests was affected by a combination of these disturbances through different pathways. As the site environments became drier, an increasing number of plantation forests showed lower vitality relative to natural forests. Frequent and serious droughts not only magnified the direct impact of drought on plantation forests, possibly due to homogeneous forest structure regarding ages and species, but also exacerbated forest fires and caused lower vitality of 85% of plantation forests relative to natural forests in southwest China. The work highlighted threats to the sustainability of plantation forests in site environments with frequent drought, challenging the efforts of expanding plantation forests.

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Tree rings reflect growth adjustments and enhanced synchrony among sites in Iberian stone pine (Pinus pinea L.) under climate change

Abstract: & Key MessageWe used tree ring analysis to assess the response of Pinus pinea to climate change in South Iberia. Climate-growth relationships changed over time, with greater sensitivity in recent years due to increasing aridity. A common dendroclimatic signal among sites was found,

Cited by 32 publications

References 49 publications

Spatiotemporal variability of stone pine ( Pinus pinea L.) growth response to climate across the Iberian Peninsula

Spatiotemporal variability of stone pine ( Pinus pinea L.) growth response to climate across the Iberian Peninsula

The role of climate change in the widespread mortality of holm oak in open woodlands of Southwestern Spain

Will drought exacerbate the decline in the sustainability of plantation forests relative to natural forests?

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