New evidence for population-specific responses to drought events from tree ring chronologies of Pinus nigra ssp. laricio across the entire distribution range

Versace, S.; Bräuning, Achim; Cherubini, Paolo; Febbraro, Mirko Di; Häusser, Martin; Lombardi, Fabio; Marchetti, Marco; Salbitano, Fabio; Szymczak, Sonja; Tognetti, Roberto

doi:10.1016/j.agrformet.2022.109076

Cited by 5 publications

(2 citation statements)

References 91 publications

(110 reference statements)

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“…with our third hypothesis. The Rt and Rs of the middle-aged stands were significantly higher than those of the young stands, indicating that the middle-aged stands had stronger adaptability to extreme drought events, which was consistent with the results of Colangelo et al (2017) and Versace et al (2022), which is also consistent with our first part of the conclusion. Studies have shown that with the increase of tree age, the greater the dependence on water storage in the body, the stronger the water storage capacity of trees.…”

Section: Differences In Response To Drought Events In Different Stand...supporting

confidence: 90%

“…Compared to arid areas, trees in humid areas generally grow better and recover faster (Gazol et al, 2017;Longo et al, 2018). The Rt, Rc, and Rs of different tree species to drought events also differ (Zang et al, 2014;Vitali et al, 2017), but there is still controversy about the response of the same tree species of different sizes to drought events: Some studies have found that large trees have a poor recovery capacity, while small trees have a stronger adaptability to dry environments (Pretzsch et al, 2018;Trugman et al, 2018), but other studies have shown that small trees are more susceptible (Colangelo et al, 2017;Versace et al, 2022). Age, as an important ecological indicator of forest community structure, affects the growth status of trees and the assessment of forest ecosystems (Law et al, 2001;Song and Woodcock, 2003;Tang et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Response of radial growth of Pinus sylvestris var. mongolica of different stand ages to climate and extreme drought events in the semi-arid region of western Liaoning, Northeast China

Liu,

Hu,

Wei

et al. 2023

Front. For. Glob. Change

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The frequency and severity of drought events are increasing under a changing climate, trees of different stand ages respond differently to drought events, which has a great impact on the stability of forest ecosystems. In this study, we measured radial growth (RG) in cored trees from 49 forests including young stands (20–30a) and middle-aged stands (31–50a) of Pinus sylvestris var. mongolica plantations in a semi-arid area of western Liaoning, China. We evaluated the response of RG of P. sylvestris to long-term climate, and calculate three response indicators: resistance (Rt), recovery (Rc) and resilience (Rs), so as to measure the growth response of trees to drought events. Results showed that a negative correlation was detected between RG of young stands and the monthly highest temperature (MHT) in April and May. Positive correlations were found between RG of young stands and the monthly lowest temperature (MLT) across periods from September to November, when RG of young stands was also positively correlated with Palmer Drought Severity Index (PDSI) across whole-years. There was a positive correlation between RG of middle-aged stands and MLT in September, and PDSI from June to December. After the first drought event, most pine trees recovered their RG (Rc > 1, Rs > 1). However, after three consecutive drought events, Rt, Rc, and Rs of pine trees decreased significantly (p < 0.05), and Rt and Rs were less than 1. In summary, younger pine trees are more sensitive to climate change, and spring drought is more inhibitory to growth of pine trees than high summer temperatures. Pine trees have a compensation effect after experiencing drought events, but the cumulative effect of multiple drought events will gradually offset the compensation effect of trees and eventually decline in pine tree growth, while the resistance and resilience of young stands after continuous drought events were significantly lower than those of middle-aged stands, and have a higher risk of death.

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Section: Differences In Response To Drought Events In Different Stand...supporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Response of radial growth of Pinus sylvestris var. mongolica of different stand ages to climate and extreme drought events in the semi-arid region of western Liaoning, Northeast China

Liu,

Hu,

Wei

et al. 2023

Front. For. Glob. Change

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Xylem formation patterns from Mediterranean to subalpine climate conditions reveal high growth plasticity of pine species on Corsica

Häusser

Aryal

Barth

et al. 2023

Trees

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Key message Black pine and Maritime pine exhibit considerable differences in growth phenology across elevation belts with a 1-month delay for xylogenesis and increasing growth rates from low, mid to high elevations. Abstract Investigating seasonal wood formation is crucial to understand tree growth responses to climate impact. The present study quantifies the variability of xylogenesis along an elevation gradient on the Mediterranean island of Corsica, where two native pine species (Pinus nigra Arnold ssp. laricio Maire and Pinus pinaster Aiton) grow from the upper tree line to sea level, partly in sympatry. We extracted microcores from 35 trees at 5 sites along an East–West transect from the coasts (10 m asl) to the island's central mountain ridge (1600 m asl) during bi-weekly sampling campaigns between 2017 and 2019. We applied generalised additive models to detect radial growth differences in elevation and species along with minimum temperatures for growth initiation. We found that trees in low elevations experienced over 2 months longer growth periods with higher maximum growth rates than in high elevations. The results show a 1-month delay for the beginning of tracheid formation between the low, mid and high-elevation belts but comparable timing for its termination. At the sites where both species co-occur, P. nigra accumulates more radial cells in a shorter time than P. pinaster. Trees at the two contrasting coastal sites have similar growth period lengths, but exhibit a time shift of over a month. Minimum temperatures around growth initiation vary between 3.1 °C for P. nigra and 9.9 °C for P. pinaster. These findings emphasise the high plasticity in the growth behaviour of one of the most widespread tree genera in Mediterranean and temperate zones.

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Distinct spatial patterns in climate-growth relationships, vegetation and resilience indices of Black pine (Pinus nigra J.F. Arnold) from its northern and southern distribution range

Izmir,

Jevšenak,

Krajnc

et al. 2024

Dendrochronologia

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New evidence for population-specific responses to drought events from tree ring chronologies of Pinus nigra ssp. laricio across the entire distribution range

Cited by 5 publications

References 91 publications

Response of radial growth of Pinus sylvestris var. mongolica of different stand ages to climate and extreme drought events in the semi-arid region of western Liaoning, Northeast China

Response of radial growth of Pinus sylvestris var. mongolica of different stand ages to climate and extreme drought events in the semi-arid region of western Liaoning, Northeast China

Xylem formation patterns from Mediterranean to subalpine climate conditions reveal high growth plasticity of pine species on Corsica

Distinct spatial patterns in climate-growth relationships, vegetation and resilience indices of Black pine (Pinus nigra J.F. Arnold) from its northern and southern distribution range

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