Forest Ecology and Management最新文献

{"title":"Genetic and plastic effects on trait variability in two major tree species: Insights from common garden experiments across Europe","authors":"Elisabet Martínez-Sancho ,&nbsp;Christian Rellstab ,&nbsp;Patrick Fonti ,&nbsp;Marta Benito Garzón ,&nbsp;Christof Bigler ,&nbsp;José Carlos Miranda ,&nbsp;Marçal Argelich Ninot ,&nbsp;Daniel J. Chmura ,&nbsp;Jo Clark ,&nbsp;Erik Dahl Kjær ,&nbsp;Jon K. Hansen ,&nbsp;Manuel Karopka ,&nbsp;Mateusz Liziniewicz ,&nbsp;Magdalena Nötzli ,&nbsp;Aksel Pålsson ,&nbsp;Liz Richardson ,&nbsp;Evrim A. Şahan ,&nbsp;Anne Verstege ,&nbsp;Richard Whittet ,&nbsp;Yann Vitasse","doi":"10.1016/j.foreco.2025.123126","DOIUrl":"10.1016/j.foreco.2025.123126","url":null,"abstract":"<div><div>Phenotypic plasticity and genetic adaptation are key mechanisms that enable species to respond to changing environments. Tree traits do not vary independently but rather in coordination. However, our understanding of whether functional traits are governed by the same mechanism is still uncomplete. Thus, we aim at assessing the drivers of trait variability of sessile oak and European beech provenances across their distribution ranges. We estimated growth-related and leaf morphological traits from 9 and 11 provenances of oak (<em>Quercus petraea</em>) and beech (<em>Fagus sylvatica</em>), respectively, grown in four different common gardens distributed across their respective distribution areas. Overall, phenotypic plasticity played a dominant role in explaining individual trait variability. For most oak traits, variation among provenances and genetically based plasticity were correlated with the climate of origin, whereas for beech both provenance-related variation and plasticity showed fewer significant associations with the climate of origin. In oak, climate-transfer distance analyses revealed that some trait measures decreased when provenances were moved away from their local precipitation regime. In beech, significant climate-transfer distances were fewer and primarily related to temperature-related parameters. The pattern of multi-trait phenotypes indicates that resource-use strategies among provenances covary with the temperatures of origin in both species. Although beech shows adaptive potential through genetic differentiation among populations, most trait variation is plastic, which may not suffice long term to cope with extreme climatic events. Oak, by contrast, appears more responsive through adaptive mechanisms. Our study enhances understanding of the interplay between genetic adaptation and phenotypic plasticity in long-lived forest trees.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123126"},"PeriodicalIF":3.7,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling nitrogen fertilization responses in temperate Eucalyptus plantations using APSIM","authors":"Philip J. Smethurst ,&nbsp;John F. McGrath ,&nbsp;Ian C. Dumbrell ,&nbsp;Danielle Wiseman ,&nbsp;Barrie May ,&nbsp;Thomas G. Baker ,&nbsp;Daniel S. Mendham","doi":"10.1016/j.foreco.2025.123130","DOIUrl":"10.1016/j.foreco.2025.123130","url":null,"abstract":"<div><div>Nitrogen (N) fertilization is an important and flexible management option for increasing the growth, wood yield and profitability of many types of forest plantations, including temperate eucalypts in Australia. Process-based models are increasingly being used to simulate plantation growth. However, few have been tested on fertilizer experiments with a range of responses across a broad range of environmental conditions. The APSIM Eucalyptus model was tested for its ability to simulate observed growth responses to N fertilization by plantations of <em>Eucalyptus globulus</em> and <em>E. nitens.</em> Twenty<em>–</em>four experiments in temperate Australia with treatments of 0 or 400 kg ha⁻¹ N were established in 1- to 3-year-old plantations (early treatments), with treatments reapplied after three years (late treatments), and monitoring continued for another 2 years. Twelve experiments that were well replicated and randomized provided an adequate prediction of percentage responses to fertilizer (-8–51 % observed; −13–39 % predicted; R² = 0.71). Most of the response (89–100 %) was attributed to the first application of fertilizer. For plantations receiving early and late fertilization, average predicted water stress accounted for 71 % of variability in mean annual increment of stem volume. Modelling scenarios suggested that early fertilization was essential for maximizing growth at most sites. Field experimentation should continue to improve knowledge of N-responsiveness in changing climates, and to evaluate the model’s suitability for simulating those responses.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123130"},"PeriodicalIF":3.7,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multivariate spatial models for small area estimation of species-specific forest inventory parameters","authors":"Jeffrey W. Doser ,&nbsp;Malcolm S. Itter ,&nbsp;Grant M. Domke ,&nbsp;Andrew O. Finley","doi":"10.1016/j.foreco.2025.123112","DOIUrl":"10.1016/j.foreco.2025.123112","url":null,"abstract":"<div><div>National Forest Inventories (NFIs) provide statistically reliable information on forest resources at national and other large spatial scales. As forest management and conservation needs become increasingly complex, NFIs are being called upon to provide forest parameter estimates at spatial scales smaller than current design-based estimation procedures can provide. This is particularly true when estimates are desired by species or species groups, which is often required to inform wildlife habitat management, sustainable forestry certifications, or timber product assessments. Here we propose a multivariate spatial model for small area estimation of species-specific forest inventory parameters. The hierarchical Bayesian modeling framework accounts for key complexities in species-specific forest inventory data, such as zero-inflation, correlations among species, and residual spatial autocorrelation. Importantly, by fitting the model directly to the individual plot-level data, the framework enables estimates of species-level forest parameters, with associated uncertainty, across any user-defined small area of interest. A simulation study revealed minimal bias and higher accuracy of the proposed model-based approach compared to the design-based estimator. We applied the model to estimate species-specific county-level aboveground biomass for the 20 most abundant tree species in the southern United States using Forest Inventory and Analysis (FIA) data. County-level biomass estimates from the proposed model had high correlations with design-based estimates, yet the model-based estimates tended to have a slight positive bias relative to design-based estimates, particularly for abundant and managed species. Importantly, the proposed model provided large gains in precision across all 20 species. On average across species, 91.5% of county-level biomass estimates had higher precision compared to the design-based estimates. Future work should explore incorporation of additional auxiliary data sources that can help explain fine-scale variation in biomass of managed species. The proposed framework is an attractive solution for NFI data users to generate species-level forest parameter estimates with reasonable precision at management-relevant spatial scales.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123112"},"PeriodicalIF":3.7,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Natural regeneration of native woodlands in drylands subjected to disturbances: A basis for their ecological restoration","authors":"Yamila J. Duarte ,&nbsp;Bárbara Guida-Johnson ,&nbsp;Leandro M. Alvarez ,&nbsp;María Agustina Aranda ,&nbsp;Brian Leonardo A. Rios ,&nbsp;Pablo E. Villagra","doi":"10.1016/j.foreco.2025.123142","DOIUrl":"10.1016/j.foreco.2025.123142","url":null,"abstract":"<div><div>Dry woodlands are increasingly threatened by anthropogenic disturbances, which may affect their regeneration and compromise ecosystem resilience. If regeneration potential is low, ecological restoration can promote recovery. This study aimed to evaluate the effect of fires and roller-chopping on the regeneration of native dryland forests used for livestock grazing, taking the “algarrobo” (<em>Neltuma flexuosa</em>) woodlands in southern Mendoza, Argentina, as a case study. We expected fires to promote shrub encroachment, while roller-chopping would lead to a more open vegetation structure, favoring herbaceous species, reducing algarrobo recruitment, and species richness in both cases, with a synergistic effect between fires and roller-chopping. We selected 31 sites with contrasting disturbance histories, including woodlands subjected to different fire recurrence, roller-chopping, or their combination, and undisturbed sites. At each site, we recorded the number and size of vegetation patches, forest structure, sapling abundance, species richness, and composition. Generalized Linear Models (GLM) analyzed the effects of disturbance on sapling abundance, patch size, and number, and species richness. A Detrended Correspondence Analysis (DCA) was used to examine the influence of disturbance on species composition. Shrub cover increased in both burned sites and those affected by both disturbances. Sapling abundance was significantly reduced in burned sites, although this effect was less pronounced when combined with roller-chopping. Our results suggest a trend towards post-disturbance shrub invasion and a negative impact of fire on sapling abundance and species composition. High fire recurrence has a detrimental effect on the number of tree saplings. Selective roller-chopping could be integrated into sustainable forest management and restoration strategies of burned forests.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123142"},"PeriodicalIF":3.7,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term survival, growth, and reproduction responses of Engelmann spruce provenances to climate","authors":"Katherine M. Nigro ,&nbsp;Mike A. Battaglia","doi":"10.1016/j.foreco.2025.123138","DOIUrl":"10.1016/j.foreco.2025.123138","url":null,"abstract":"<div><div>As changes in climate accelerate, mature forests experience different local conditions than those that they were established under and are likely adapted to. Tree regeneration is highly constrained by climatic conditions and as these conditions continue to change, it is important to understand how reforestation choices will affect future forests. Provenance studies have been used for more than a century to understand the influence of genetics and the environment on traits, and can now additionally provide information on provenance performance under the rapidly changing climate. Here we compare survival, growth, reproduction, and growth-climate relationships among 20 provenances of Engelmann spruce (<em>Picea engelmannii</em>) trees over 45 years in a provenance study. We found that the best surviving provenances were climatically similar to the plantation with dry climates and short growing seasons, but this did not apply to overall growth. Seedlings from provenances with higher summer to spring precipitation ratios were faster to reproduce and were taller at outplanting, which was advantageous for all but the tallest seedlings. Annual growth rings of provenances responded similarly to climate, with most having both high resistance and resilience to drought. Growth was positively correlated with high temperatures year-round and wet summers. This study reveals that many Engelmann spruce provenances from varying climates can be successful at relatively cold and dry high elevation sites, boding well for assisted population migration efforts. However, differences exist between provenances in their growth, survival, and reproduction potential, which will continue to influence how they perform in the future.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123138"},"PeriodicalIF":3.7,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145026970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plus Tree selection for improvement of Neem (Azadirachta indica A. Juss): A heuristic approach through Exploratory Factor and CRITIC analysis","authors":"Ayushman Malakar,&nbsp;Animesh Sinha","doi":"10.1016/j.foreco.2025.123146","DOIUrl":"10.1016/j.foreco.2025.123146","url":null,"abstract":"<div><div>Indigenous to the Indian subcontinent, Neem (<em>A. indica</em>) is a perennial tree belonging to Meliaceae family. The species has been recognized as the “Tree of 21st Century” by the United Nations due to its diverse applications in medicine, bio-pesticide, and cosmetic sectors. Nonetheless, its habitat faces considerable pressures from anthropogenic activities and climate change. Therefore, in this study we proposed a robust mechanism for selection of Plus Trees (PTs) of Neem from natural population to aid improvement of this important Forest Genetic Resource (FGR). Data of 14 traits including phenotypic parameters, fruit – seed morphological characters and biochemical parameters like kernel oil content and azadirachtin concentration were recorded from 197 Candidate Plus Trees (CPTs) identified from three agro-climatic zones (ACZs) of India, viz., III, IV and VII. Exploratory Factor Analysis was carried out to identify three factors namely ‘sink stoutness’, ‘tree stature’ and ‘tree outspread and oil content’ significantly contributing in the selection explaining a cumulative variance of 61.024 %. To develop a unified scoring matrix for selecting PTs, CRiteria Importance Through Intercriteria Correlation (CRITIC) analysis was performed providing appropriate weightage to each selection criteria with statistical basis. The CPTs were scored against their performance under each observed parameter according to the developed scoring matrix and 50 PTs were identified across the three ACZs. The current study offers valuable insights into the selection procedure of PTs demonstrating excellent qualitative and quantitative characteristics in comparison to the population mean, which can readily be utilized in future tree improvement programs of Neem.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123146"},"PeriodicalIF":3.7,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Performance of Quercus rubra and Quercus robur in pure and mixed-species plantations","authors":"Verónica Loewe-Muñoz ,&nbsp;Rodrigo Del Río ,&nbsp;Claudia Delard ,&nbsp;Claudia Bonomelli ,&nbsp;Mónica Balzarini","doi":"10.1016/j.foreco.2025.123139","DOIUrl":"10.1016/j.foreco.2025.123139","url":null,"abstract":"<div><h3>Context</h3><div><em>Quercus robur</em> L. and <em>Q. rubra</em> L. (pedunculate and Northern red oak, respectively) produce high-value timber. Mixed plantations are attracting attention because they provide several benefits; however, they have been included in few trials in non-native habitats.</div></div><div><h3>Aims</h3><div>This study assessed growth, health, and timber quality of <em>Quercur robur</em> and <em>Q. rubra</em> trees growing in pure and mixed plantations including companion tree species.</div></div><div><h3>Methods</h3><div>Growth was measured periodically in <em>Q. robur</em> and <em>Q. rubra</em> pure and mixed plantations established in southern Chile for 23 years. Mixed plantations consisted of a main forest species association (<em>Castanea sativa</em> Mill., <em>Quercus rubra</em>, <em>Q. robur</em> and <em>Prunus avium</em> L.) and three mixed plantations including the four main forest species plus one companion tree species (<em>Alnus glutinosa</em> L., <em>Gevuina avellana</em> Mol. or <em>Embothrium coccineum</em> J.R.Forst. &amp; G.Forst.). Timber quality variables and health status were measured at age 23. Growth variables were analyzed using linear mixed models and quality timber variables, using a χ2 test.</div></div><div><h3>Results</h3><div>Both species exhibited a positive performance in tree growth, vigor, and phytosanitary status. Across treatments, <em>Q. rubra</em> presented bigger trees than <em>Q. robur</em> at age 23. In the pure plantation, <em>Q. robur</em> initially showed higher growth rates than <em>Q. rubra</em>, but from age 15, the latter outperformed the former. <em>Q. robur</em> tree volume was higher in the main species association and the one including <em>E. coccineum</em> than in the pure plantation. <em>Q. rubra</em> tree size showed no differences between plantation types. The association with <em>A. glutinosa</em> reduced both oak species growth, and the one with <em>Gevuina avellana</em> had a neutral effect on <em>Q. rubra</em> and a negative effect on <em>Q. robur</em> (reduced height and volume). Finally, the main species association showed higher volume per hectare than the pure <em>Q. robur</em> plantation.</div></div><div><h3>Conclusion</h3><div>Both species showed productive potential in pure and mixed plantations. Mixed plantations can be recommended as an alternative to pure plantations to produce quality timber. Adequately selecting the main and companion species based on site-specific conditions is crucial for the success of productive plantations.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123139"},"PeriodicalIF":3.7,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Not only aboveground biomass: Soil of undisturbed Carpathian beech forests also stores substantial carbon","authors":"Laxmi Moktan ,&nbsp;Jeňýk Hofmeister ,&nbsp;Filip Oulehle ,&nbsp;Otmar Urban ,&nbsp;Ion Catalin Petritan ,&nbsp;Any Mary Petritan ,&nbsp;Michal Bosela ,&nbsp;Heather Keith ,&nbsp;Peter Jaloviar ,&nbsp;Stanislav Kucbel ,&nbsp;Ján Pittner ,&nbsp;Natálie Pernicová ,&nbsp;Jakub Hruška ,&nbsp;Dheeraj Ralhan ,&nbsp;Jakob Pavlin ,&nbsp;Martin Mikoláš ,&nbsp;Molly Smith Metok ,&nbsp;Miroslav Svoboda","doi":"10.1016/j.foreco.2025.123140","DOIUrl":"10.1016/j.foreco.2025.123140","url":null,"abstract":"<div><div>Primary beech-dominated forests, characterised by the dynamics of natural disturbance regimes with little or no evidence of human intervention, play a significant role in storing soil carbon (C). Their high aboveground biomass (AGB) contributes to high rates of C accumulation through the soil profile and into the deeper soil layers. However, C dynamics in deep soil horizons remain poorly documented. Hence, this study provides a quantitative assessment of soil C stocks in primary temperate beech-dominated forests with remarkably high AGB in Central and Eastern Europe. In 2023, we excavated two to three quantitative soil pits (0.5 m² each) per plot to a depth of 80 cm to estimate soil C stocks. In total, 15 plots in four primary beech-dominated forests in Slovakia and Romania were included, where aboveground biomass had been measured between 2012 and 2021. We used the quantitative soil pit method for the precise and reliable estimation of soil C, especially in deeper soil horizons with the presence of stones and deadwood. Across all studied forests, soil C stocks (105–148 Mg C ha⁻¹) were significantly lower than aboveground C stocks (291–391 Mg C ha⁻¹) but soil C stocks positively corresponded with aboveground C stocks. Soil N stocks varied from 7–9 Mg C ha⁻¹. Notably, deeper soil horizons (20–80 cm) contributed a substantial percentage share of C (61–66 %) of the total soil profile. Leaving forests intact, including primary forests and forests recently managed for timber production, will contribute to the further increases in carbon stocks in the aboveground biomass through continued biomass growth and gap-phase regeneration, and will promote soil C accumulation via sustained litter input and minimal disturbance.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123140"},"PeriodicalIF":3.7,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differential snow depth in warm edges versus cold edges of forest gaps, and its potential implications for tree growth in a Sierra Nevada conifer forest","authors":"Aidan Manning ,&nbsp;Adam Csank ,&nbsp;Scott Allen ,&nbsp;Adrian Harpold","doi":"10.1016/j.foreco.2025.123119","DOIUrl":"10.1016/j.foreco.2025.123119","url":null,"abstract":"<div><div>Forest canopy gaps affect the timing and amount of snowmelt, because canopies act as key controls over snowpack dynamics. Overlying canopy can decrease snowpack by intercepting snowfall, but it can also reduce ablation rates via shading. Changes in forest structure and canopy gaps may therefore affect the amount, timing, and duration of snowmelt and potentially forest response to water limitations. We examine opposing edges of gaps, testing how higher energy-input (warm) edges differ from lower energy-input (cool) edges with respect to snow depth, snowmelt timing, and tree growth in a snow-dominated forest in the Western US. We use multiple dates of LiDAR-based measurement to assess springtime snow depths in warm and cool gap edges in Sagehen Creek Basin, CA. Then we use paired tree sampling and ring width chronologies to ascertain moisture sensitivity of trees adjacent to warm and cool edges. Pre-ablation snow depths in cool gap edges exceeded those in warm gap edges by 9–18 %, with effect size depending on elevation and aspect. Snowpack also persisted longer in cool edges than in warm edges. Growth variations in warm-edge-adjacent trees were more correlated with interannual variations in snow depth those of cool edge trees, although neither had strong correlations. These findings suggest that forest structures that maximize cool edge area may benefit snow depth and persistence, and may lead to cool-edge trees being less sensitive to interannual hydroclimatic variability than warm edge trees, despite this effect being small relative to other controls over growth.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123119"},"PeriodicalIF":3.7,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145004862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Black spruce growth under climate extremes: Genetic insights for managing a key resource production species","authors":"Etienne Robert ,&nbsp;Patrick Lenz ,&nbsp;Yves Bergeron ,&nbsp;Nathalie Isabel ,&nbsp;Martin P. Girardin","doi":"10.1016/j.foreco.2025.123129","DOIUrl":"10.1016/j.foreco.2025.123129","url":null,"abstract":"<div><div>Understanding the influence of intraspecific genetic variation on the response of tree species to stress events—like heatwaves, droughts, and growing season frost—is crucial. This genetic variation is linked to species adaptive potential and plays a pivotal role in shaping the resilience and long-term adaptability of species to climate change. Furthermore, genetic variation can affect populations’ responses to stress events, thereby influencing forest productivity and carbon sequestration potential. We combined dendroecological and genomic approaches to analyze the growth response of 61 black spruce (<em>Picea mariana</em>) populations, grown for over 40 years in four common gardens, to daily extreme vapor pressure, soil moisture deficits, and growing season frosts. Our objectives were to 1) assess the effects of stress events defined from physiological thresholds on annual biomass production and 2) explore the potential influence of standing genetic variation on trees’ responses to stress events at the population scale. The growth response of black spruce to those events was site-specific but with an important influence of soil or atmospheric drought at most sites. This response was also nonlinear, with a negative effect on growth occurring only after several stress events a year. Additionally, an interaction between this response and the geographic origin of the population indicated an influence of standing genetic variation, notably linked to local adaptation. These results may provide insight into tree resilience to stress events and help estimate the adaptive potential of the Canadian boreal forest. Moreover, this knowledge can help guiding forest management, for example assisted gene flow.</div></div>","PeriodicalId":12350,"journal":{"name":"Forest Ecology and Management","volume":"597 ","pages":"Article 123129"},"PeriodicalIF":3.7,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}