Structural diversity and carbon sequestration of forest stands. Tradeoff as modified by silvicultural thinning DOI Creative Commons
Hans Pretzsch, Torben Hilmers

Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown

Published: Dec. 12, 2023

Abstract In forest management, merging stand structure diversity with carbon storage is essential for resilience and climate mitigation. This study assesses (i) how in stands of spruce (Picea abies (L.) H. Karst.), pine (Pinus sylvestris L.), beech (Fagus sylvatica oak (Quercus robur L. Quercus petraea (Matt.) Liebl.) varies age, site quality, applied thinning grade; (ii) these factors' impact on stock; (iii) the link between stock. Analyzing 26 long-term experiments, we used Gini coefficient tree heights to measure structural species-specific biomass functions stock assessments. Our results show diversity, highest spruce, decreases age richer sites. Thinning enhances but reduces it oak. Unthinned or only moderately thinned mature outperform (200–300 vs. 100–150 MG C ha-1). C- D&E-grade halves A decrease vertical layering increased across species. Given same stock, from above maintains beech, while non-thinning below promotes We argue that reduced previously may reduce improve (+ 100–200 ha− 1) four considered species next 3–5 decades. discussed options reconciling by silvicultural management.

Language: Английский

Young mixed planted forests store more carbon than monocultures—a meta-analysis DOI Creative Commons
Emily Warner, Susan C. Cook‐Patton, Owen T. Lewis

et al.

Frontiers in Forests and Global Change, Journal Year: 2023, Volume and Issue: 6

Published: Nov. 9, 2023

Although decades of research suggest that higher species richness improves ecosystem functioning and stability, planted forests are predominantly monocultures. To determine whether diversification plantations would enhance aboveground carbon storage, we systematically reviewed over 11,360 publications, acquired data from a global network tree diversity experiments. We compiled maximum dataset 79 monoculture to mixed comparisons 21 sites with all variables needed for meta-analysis. assessed stocks in mixed-species vs. (a) the average monocultures, (b) best monoculture, (c) commercial examined potential mechanisms driving differences between mixtures On average, found were 70% than 77% 25% performing although latter was not statistically significant. Overyielding highest four-species (richness range 2–6 species), but otherwise none (nitrogen-fixer present absent; native non-native/mixed origin; experiment forestry plantation) consistently explained variation effects. Our results, young stands, thus could be very promising solution increasing sequestration represent call action more increase confidence these results elucidate methods overcome any operational challenges costs associated diversification.

Language: Английский

Citations

27
Structural diversity and carbon stock of forest stands: tradeoff as modified by silvicultural thinning DOI Creative Commons
Hans Pretzsch, Torben Hilmers

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

Published: May 3, 2024

Abstract In forest management, merging stand structural diversity with carbon storage is essential for resilience and climate mitigation. This study assesses (1) how in stands of spruce ( Picea abies (L.) H. Karst.), pine Pinus sylvestris L.), beech Fagus sylvatica oak Quercus robur L. petraea (Matt.) Liebl.) Central Europe varies age, site quality, applied thinning grade; (2) these factors' impact on stock; (3) the link between stock. Analyzing 26 long-term experiments, we used Gini coefficient tree heights to measure species-specific biomass functions stock assessments. Our results show that diversity, highest spruce, decreases age richer sites. Thinning enhances but reduces it oak. Unthinned or only moderately thinned mature outperform (200–300 vs. 100–150 Mg C ha −1 ). C- D&E-grade halves A decrease vertical layering increased across species. Given same stock, from above maintains beech, while non-thinning below promotes Based current silvicultural practice reflected by NFI data Germany, argue reduced previously may slightly reduce their diversity. However, a suspension reduction would strongly improve (+ 100–200 ) next 3–5 decades. We discussed options reconciling management four considered species Europe.

Language: Английский

Citations

6
Can mixing Quercus robur and Quercus petraea with Pinus sylvestris compensate for productivity losses due to climate change? DOI
Sonja Vospernik, Carl Vigren, Xavier Morin

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 942, P. 173342 - 173342

Published: June 5, 2024

Language: Английский

Citations

4
A review of the growth behaviour of stands and trees in even-aged, monospecific forest DOI Creative Commons
Philip W. West

Annals of Forest Science, Journal Year: 2024, Volume and Issue: 81(1)

Published: Sept. 19, 2024

Language: Английский

Citations

4
Do Stands Self-Thin Through a Common Point? An Additional Concept for the Self-Thinning Rule DOI Open Access
Philip W. West, David A. Ratkowsky

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 199 - 199

Published: Jan. 22, 2025

Once the steady and ongoing mortality of individuals in a plant population has started, widely accepted ‘self-thinning rule’ holds; this maintains that set progressive average sizes plants their residual stocking densities bear constant relationship to each other. This work aimed quantify self-thinning processes monospecific Eucalyptus obliqua L’Hér. forest using data from plots Tasmania, Australia. Unexpectedly, it was found that, with or without extrapolation, lines all tended intersect near common size density. finding extended previously published for forests seven other tree species spread across world, five hardwood two softwood. All showed same phenomenon. Whilst adds new concept existing rule, no immediate explanation could be offered as why occurs. It concluded will require studying various mechanisms determine growth behavior, competitive interactions between resources requires site (light, water, mineral nutrients), how these lead smaller, less competitively successful individuals.

Language: Английский

Citations

0
Tree diversity’s impact on coarse woody debris biomass and spatial stability under different moisture stress levels in temperate forests, South Korea DOI Creative Commons
Hae-In Lee, Youngju Lee, Chang‐Bae Lee

et al.

Ecological Indicators, Journal Year: 2025, Volume and Issue: 172, P. 113309 - 113309

Published: March 1, 2025

Language: Английский

Citations

0
Does machine learning outperform logistic regression in predicting individual tree mortality? DOI Creative Commons
Aitor Vázquez-Veloso, Astor Toraño Caicoya, Felipe Bravo

et al.

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103140 - 103140

Published: April 1, 2025

Language: Английский

Citations

0
Mapping mortality rates in boreal mixedwood forest using airborne laser scanning and permanent plot data DOI Creative Commons
José Riofrío, Nicholas C. Coops,

Muhammad Waseem Ashiq

et al.

Forestry An International Journal of Forest Research, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 17, 2025

Abstract Accurate and spatially explicit predictions of tree mortality are critical for understanding forest dynamics guiding management practices. Airborne Laser Scanning (ALS) can cover large spatial areas, allowing the estimation attributes characterization canopy vertical structure gaps over various environments. This study integrated field measurements from permanent growth yield plots with ALS-derived to develop zero-inflated beta regression models estimating basal area rates. Specifically, we combined a set related complexity derived ALS data predict map (20 m pixel resolution) rates boreal mixedwood in northern Ontario, Canada. We evaluated how vary depending on stand-level factors, such as stand age type defined by species composition proportions. Our findings demonstrate that structural significantly In particular, found higher associated more complex structures larger gaps. However, magnitude varied composition. The resulting probability rate maps showed highly variable across types attributes, offering possibility analyzing correlation occurrence other variables like soil climate attributes. results support using Enhanced Forest Inventory systems precise timely interventions operational silvicultural planning.

Language: Английский

Citations

0
Intra-specific variation in mortality of even-aged Cryptomeria japonica (L. f.) D. Don. forests can be explained using relationships among long-term stand characteristics DOI Creative Commons
Keiko Fukumoto,

Tomohiro Nishizono,

Fumiaki Kitahara

et al.

Annals of Forest Science, Journal Year: 2025, Volume and Issue: 82(1)

Published: Feb. 5, 2025

Language: Английский

Citations

0
Floristic Diversity and Natural Regeneration of Miombo Woodlands in the Rural Area of Lubumbashi, D.R. Congo DOI Creative Commons
Dieu-donné N’tambwe Nghonda, Héritier Khoji Muteya, Waselin Salomon

et al.

Diversity, Journal Year: 2024, Volume and Issue: 16(7), P. 405 - 405

Published: July 13, 2024

Increased anthropogenic pressure on forest resources leads to deforestation and degradation, significantly limiting the regeneration capacity of native woody species consequently restoration miombo woodlands in anthropized habitats within rural area Lubumbashi. This study assessed species’ diversity natural through floristic inventories three different (unexploited forests, degraded post-cultivation fallows). The results reveal that for adult stratum, unexploited forests exhibit higher dendrometric (density, mean square diameter, basal area) parameter (taxa, genera, families) values compared fallows. Furthermore, is (21 taxa; 105 juveniles/plot). However, regarding sapling’s stratum (1 cm ≤ dbh < 10 cm), display similar situations. Additionally, composition show a similarity (76.50%) among them these fallows (56.00%). These findings indicate have potential regenerate maintain even habitats, particularly forests. To sustain this promote cover its diversity, it imperative determine rotation period after habitat exploitation regulate activities late bush fires, at village level.

Language: Английский

Citations

3