Effect of stem rot on wood basic density, carbon, and nitrogen content of living deciduous trees in hemiboreal forests

Silva Fennica, Journal Year: 2023, Volume and Issue: 57(3)

Published: Jan. 1, 2023

While numerous studies have focused on analyzing various aspects of the carbon (C) budget in forests, there appears to be a lack comprehensive assessments specifically addressing impact stem rot C broadleaf tree species, especially old-growth forests where is prevalent. One main challenges accurately quantifying losses caused by precise data basic density and content decayed wood, which are crucial for converting wood volume into biomass stocks. Using linear mixed-effects models, we examine variability density, content, nitrogen (N) content. Discolored decomposed was collected from stems 136 living deciduous trees common hemiboreal Latvia. Our research indicates noticeable reduction coupled with an increase N within throughout decomposition process birch (Betula spp.), European aspen (Populus tremula L.), grey alder (Alnus incana (L.) Moench), glutinosa Gaertn.). showed decreasing trend as decay progressed, pairwise comparison test revealed no significant differences between discolored studied unlike findings This study emphasizes need account forest budgets, calls more rot-induced losses.

Language: Английский

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Sustaining Carbon Storage: Lessons from Hemiboreal Old-Growth Coniferous and Deciduous Forest Stands

Forest Science, Journal Year: 2022, Volume and Issue: 69(2), P. 158 - 166

Published: Dec. 13, 2022

Abstract For the last three decades, area of old-growth forest stands in Europe has continued to increase as their importance achieving forest-related policy goals. This triggered an research interest forests, both from climate change mitigation and biodiversity protection perspectives. However, carbon stock European hemiboreal forests had not been systematically studied. Therefore, this article, we characterize differences between mature on fertile mineral soils Latvia contribute understanding storage changes under different management strategies for lands. Carbon varied significantly dominant tree species (1.9–2.3 times younger) stages same stands. The biomass deadwood was larger stands, but mean annual lower than (27% 47% depending species). Old-growth can serve reservoirs areas with limited natural disturbances; however, maintenance neutrality, it is essential expand managed increase. Study Implications: Forest ecosystems play a major role regulation global climate: They store high quantities also gain or lose rather quickly. represent baseline carbon-carrying capacity particular conditions. characterized planning activities.

Language: Английский

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Spatial distribution of Tree-related Microhabitats in a primeval mountain forest: from natural patterns to landscape planning and forest management recommendations

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: April 28, 2024

Abstract Tree-related Microhabitats (TreMs) are essential for sustaining forest biodiversity. Although TreMs represent ephemeral resources that spread across the landscape, their spatial distribution within temperate forests remains poorly understood. To address this knowledge gap, we conducted a study on 90 sample plots (0.05 ha each) located in primeval mountain European beech Fagus sylvatica -dominated (Bieszczady Mountains, Carpathians). We explored TreM profile with its link to habitat characteristics and described of indices. identified 61 types, mean richness 19.7 ±4.9 SD types per plot, density 740.7 ±292.5 TreM-bearing trees -1 diversity 1.2 ±0.1 SD. The diameter living status (living vs dead standing tree) were correlated an individual tree. stand structure, i.e. and/or basal area trees, topographic conditions, slope exposure, richness, recorded plot. found no relationship between presence canopy gaps, which indicates influence small-scale disturbances is limited. However, our analysis revealed clustered pattern indices, TreM-rich patches (hot-spots) covering ∼20% forest. A moderate dominated ∼60% forest, while TreM-poor (cold-spots) covered ∼20%. Based findings, advise transfer from managed advocate ‘2:6:2’ triad rule: allocate 20% as strictly protected areas, dedicate 60% low-intensity management retention large all use remaining intensive timber production. ensure continuance majority ≥ 55 > 60 cm should be retained. Such approach will maintain rich diverse assemblage broad scale, turn support biodiversity conservation ecosystem restoration secondary or forests. Highlights Primeval hosts abundant Stand but not gaps mould profiles Habitat high/low indices spatially Hot- cold-spots each make up 2:6:2 - protected: ratio maintaining

Language: Английский

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New times in old forests: How the past matters in European forest science

Environmental Science & Policy, Journal Year: 2024, Volume and Issue: 157, P. 103757 - 103757

Published: May 6, 2024

Language: Английский

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Mapping temperate old-growth forests in Central Europe using ALS and Sentinel-2A multispectral data

Environmental Monitoring and Assessment, Journal Year: 2024, Volume and Issue: 196(9)

Published: Aug. 26, 2024

Abstract Old-growth forests are essential to preserve biodiversity and play an important role in sequestering carbon mitigating climate change. However, their existence across Europe is vulnerable due the scarcity of distribution, logging, environmental threats. Therefore, providing current status old-growth aiding informed conservation efforts sustainable forest management. Remote sensing techniques have proven effective for mapping monitoring over large areas. relying solely on remote spectral or structural information cannot capture comprehensive horizontal vertical structure complexity profiles associated with characteristics. To overcome this issue, we combined from Sentinel-2A multispectral imagery 3D high-density point clouds airborne laser scanning (ALS) map extended area. Four features ALS data fifteen comprising raw band (spectral reflectance), vegetation indices (VIs), texture were selected create three datasets used classification process using random algorithm. The results demonstrated that combining improved performance yielded highest accuracy class, F1-score 92% producer’s user’s accuracies 93% 90%, respectively. findings suggest sensitive identifying forests. Integrating open-access satellite imageries, such as data, can benefit managers, stakeholders, conservationists preservation a broader spatial extent.

Language: Английский

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Meeting the European Union’s Forest Strategy goals: A comparative European assessment.

From science to policy, Journal Year: 2023, Volume and Issue: unknown

Published: Sept. 26, 2023

These measures are not considered in the EU Forest Strategy but emerged from some of national and regional documents analysis.In IE, focus is on native forests, which includes remaining old-growth forests.

Language: Английский

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Tree biomass – a fragile carbon storage in old-growth birch and aspen stands in hemiboreal Latvia

BALTIC FORESTRY, Journal Year: 2022, Volume and Issue: 28(2)

Published: Dec. 30, 2022

Birch (Betula pendula Roth, Betula pubescens Ehrh.) and European aspen (Populus tremula L.) stands dominate the deciduous forests of Northern Europe. Due to increasing forest protections, more will reach old-growth stage. Thus, data on carbon storage potential in such areas are essential. We aimed establish a benchmark for stocks main pools hemiboreal stands. Carbon were calculated from measurements forty (104–148 years-old) fertile mineral soil. The stock these is distributed across tree biomass (~ 60%), soil 30%), floor 5%), deadwood 4%). Living closely associated with stand parameters: dominant species, standing volume density. As ages dieback occurs, significance individual large trees maintain high density volume, thus also stand, rises. Reliance small number makes fragile easily affected by natural disturbances. It happens at an earlier age species relatively short life span, like birch aspen. Our limited recent influence disturbances provide old Keywords: pools, biomass, deadwood, floor, soil, birch,

Language: Английский

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Long‐term assessment of macro‐ and micronutrients in foliage of European beech (Fagus sylvatica L.) in thinned versus unmanaged old‐growth stands

Journal of Plant Nutrition and Soil Science, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 2, 2024

Abstract Background Science‐based decisions regarding forest management require the knowledge of impact thinning regimens on forests’ vitality and resilience. There is no systematic study analysing role approaches nutritional status forests, serving as a surrogate for their health growth. Aims We assessed ‘heavy from above’ versus ‘no management’ foliar chemistry old‐growth European beech stands calcareous site with cambisol/chromic luvisol soil in Thuringia, Germany. Methods Macro‐ micronutrients were analysed by serial analysis six trees per experimental plot over 13 years (2009–2021). To assess potential differences between two plots time, linear mixed‐effects model was applied. Results Foliar concentrations all macro‐ not significantly different ( p > 0.05), demonstrating that approach had relevant growing at site. Furthermore, dynamic 13‐year evaluation period. Hence, long‐term monitoring crucial to capture complex interplay environmental conditions. Conclusions Serial allows reliable forest's status. The results indicate either regimen, is, or management’, shall pose any risk terms growth stability. Our add understanding dynamics may provide further piece science‐based strategies sustainable management.

Language: Английский

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« L’appel de la forêt » : une forêt primaire entre projet associatif et politique en faveur de la libre évolution

VertigO, Journal Year: 2024, Volume and Issue: 24-2

Published: Jan. 1, 2024

Depuis les années 2000 en France et Europe ont émergé des initiatives visant à favoriser le retour d’espace de haute naturalité. Ces projets, majoritairement portés par associations, entendent contribuer la lutte contre changement climatique l’érosion biodiversité. En France, projets encourageant « libre évolution » se développent surtout autour milieux forestiers, bien que ces pratiques dans d’autres milieux. C’est ce contexte, qu’a projet l’Association Francis Hallé pour forêt primaire (AFH), dont l’ambition est recréer conditions favorables au développement d’une 70 000 hectares zone transfrontalière l’Ouest. Le présent travail recherche, basé sur une démarche recherche-action, s’intéresse manière type promeut l’émergence nouveaux modes d’action protection l’environnement tout procédant mise politique son objet. explore positionnement du l’AFH contexte d’intérêt croissant stratégies évolution. Il également stratégie déployée l’organisation aux effets induits potentiel telle initiative un territoire (par exemple changements d’usages, reconfiguration activités économiques, cetera). L’article montre l’initiative étudiée complexe fait face certain nombre limites sa œuvre projet, statut d’association l’absence précédent. L’AFH propose hybride, être point rencontre et/ou friction entre institutionnelles conservation nature l’action associative. l’AFH, défaut territorialiser, contribue promotion débat principes comme approche gestion l’environnement, cohabité avec autres qu’humains leviers transitions socio-écologiques.

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Carbon storage potentiality in successional and secondary old growth forests

European Journal of Forest Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Abstract As the capacity of old-growth forests to store carbon until very old ages has been proved, their conservation become a mitigation strategy reduce net CO 2 emissions and moderate climate warming. We investigated effect tree age, competition on aboveground standing biomass C stocks over 50-years period in two Spanish forest stands ( successional Pinus pinea with attributes , OGFA secondary nigra Forest, SOGF ), combining dendroecological methods inventory data, using semiparametric modeling. P. stored 69.9 t ha −1 volume, while 58.2 . Carbon during last 50 years increased both forests, steeper increase OGFA. The fraction annual by oldest trees was 20–25% 17–23% different patterns growth increment were explained biophysical environments, history effects. response contrasted events forest-specific. Results for P.nigra showed similar irrespective humid periods compared dry older than 100-years. negative drought is evidenced 100-years old, cumulative all ages. A lower recorded forests. interaction age attenuated climate-mediated differences when high.

Language: Английский

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