Climate sensitivity of Mediterranean pine growth reveals distinct east-west dipole

Seim, Andrea; Treydte, Kerstin; Trouet, Valérie; Frank, David; Fonti, Patrick; Tegel, Willy; Panayotov, Momchil; Fernández-Donado, Laura; Krusic, Paul J.; Büntgen, Ulf

doi:10.1002/joc.4137

Cited by 34 publications

(34 citation statements)

References 43 publications

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“…These results agree with those reported by Seim et al. () who found a distinct east–west dipole in tree growth of pine species at the Mediterranean Basin. Chen et al.…”

Section: Discussionsupporting

confidence: 93%

Increased water‐use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits

Martínez-Sancho

Dorado‐Liñán²,

Merino

et al. 2017

Global Change Biology

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In forests, the increase in atmospheric CO concentrations (C ) has been related to enhanced tree growth and intrinsic water-use efficiency (iWUE). However, in drought-prone areas such as the Mediterranean Basin, it is not yet clear to what extent this "fertilizing" effect may compensate for drought-induced growth reduction. We investigated tree growth and physiological responses at five Scots pine (Pinus sylvestris L.) and five sessile oak (Quercus petraea (Matt.) Liebl.) sites located at their southernmost distribution limits in Europe for the period 1960-2012 using annually resolved tree-ring width and δ C data to track ecophysiological processes. Results indicated that all 10 natural stands significantly increased their leaf intercellular CO concentration (C ), and consequently iWUE. Different trends in the theoretical gas-exchange scenarios as a response to increasing C were found: generally, C tended to increase proportionally to C , except for trees at the driest sites in which C remained constant. C from the oak sites displaying higher water availability tended to increase at a comparable rate to C . Multiple linear models fitted at site level to predict basal area increment (BAI) using iWUE and climatic variables better explained tree growth in pines (31.9%-71.4%) than in oak stands (15.8%-46.8%). iWUE was negatively linked to pine growth, whereas its effect on growth of oak differed across sites. Tree growth in the western and central oak stands was negatively related to iWUE, whereas BAI from the easternmost stand was positively associated with iWUE. Thus, some Q. petraea stands might have partially benefited from the "fertilizing" effect of rising C , whereas P. sylvestris stands due to their strict closure of stomata did not profit from increased iWUE and consequently showed in general growth reductions across sites. Additionally, the inter-annual variability of BAI and iWUE displayed a geographical polarity in the Mediterranean.

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“…These results agree with those reported by Seim et al. () who found a distinct east–west dipole in tree growth of pine species at the Mediterranean Basin. Chen et al.…”

Section: Discussionsupporting

confidence: 93%

Increased water‐use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits

Martínez-Sancho

Dorado‐Liñán²,

Merino

et al. 2017

Global Change Biology

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“…Indeed, the longitude‐based Mantel test showed a lower correlation coefficient than the latitude‐based test, which may be a consequence of weather events characterised by a longitude‐based spatial pattern prompting synchronised masting (Fernández‐Martínez et al ., ). Similar spatial structuring in beech has been found by local masting studies, which explained it by an increasing influence of spring frost in more continental areas (Gross, ), but also by tree‐ring studies, which linked contrasting growth patterns to the different influence of climate teleconnections, such as between the eastern and western Mediterranean basin (Chen et al ., ; Seim et al ., ).…”

Section: Discussionmentioning

confidence: 97%

Spatial patterns and broad‐scale weather cues of beech mast seeding in Europe

Hacket‐Pain²,

et al. 2017

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SummaryMast seeding is a crucial population process in many tree species, but its spatio-temporal patterns and drivers at the continental scale remain unknown .Using a large dataset (8000 masting observations across Europe for years 1950-2014) we analysed the spatial pattern of masting across the entire geographical range of European beech, how it is influenced by precipitation, temperature and drought, and the temporal and spatial stability of masting-weather correlations.Beech masting exhibited a general distance-dependent synchronicity and a pattern structured in three broad geographical groups consistent with continental climate regimes. Spearman's correlations and logistic regression revealed a general pattern of beech masting correlating negatively with temperature in the summer 2 yr before masting, and positively with summer temperature 1 yr before masting (i.e. 2T model). The temperature difference between the two previous summers (DeltaT model) was also a good predictor. Moving correlation analysis applied to the longest eight chronologies (74-114 yr) revealed stable correlations between temperature and masting, confirming consistency in weather cues across space and time.These results confirm widespread dependency of masting on temperature and lend robustness to the attempts to reconstruct and predict mast years using temperature data.

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“…Büntgen et al, 2007;Nicault et al, 2008;Galván et al, 2014) and taken as a general time window comprising months in which high temperatures and water deficit significantly influence Mediterranean tree growth (e.g. de Luis et al, 2013, Seim et al, 2014. Subsequently, the AMJJAS time series were plotted for each region to study the temporal trends.…”

Section: Climate Datamentioning

confidence: 99%

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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Climate sensitivity of Mediterranean pine growth reveals distinct east-west dipole

Cited by 34 publications

References 43 publications

Increased water‐use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits

Increased water‐use efficiency translates into contrasting growth patterns of Scots pine and sessile oak at their southern distribution limits

Spatial patterns and broad‐scale weather cues of beech mast seeding in Europe

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

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