Variable corridor thinning – a cost-effective key to provision of multiple ecosystem services from young boreal conifer forests?

Witzell, Johanna; Bergström, Dan; Bergsten, Urban

doi:10.1080/02827581.2019.1596304

Cited by 14 publications

(20 citation statements)

References 106 publications

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“…According to Ahnlund Ulvcrona et al (2017) and Witzell et al (2019), BCT maintained a higher diversity of tree sizes and species (i.e., structural heterogeneity) which results in increased stand biodiversity and provides an opportunity to grow uneven-structured forests. Also, according to Puettmann et al (2009), selective thinning aims to homogenise stand structure, density and composition, and respectively, BCT allows the development of vertical heterogeneity and, possibly, different age classes.…”

Section: Discussionmentioning

confidence: 99%

“…Precommercial thinning and first commercial thinning are the most important silvicultural operations, since their timing and intensity strongly affect the further development (e.g., structure, quality, growth) of the forest stand (Niemistö et al 2018). Overall, young forests account for a substantial proportion of the boreal forest, and today's management decisions regarding these forests will lay the foundation for future forestry (Witzell et al 2019).…”

Section: Introductionmentioning

confidence: 99%

“…However, BCT maintained a higher diversity of tree sizes as well as more stems per hectare, including deciduous species, than the selective thinning approaches. Witzell et al (2019) concluded that BCT may enable the early outtake of forest biomass for e.g. bioenergy or biorefining, while simultaneously maintaining the stand structure's vertical heterogeneity and thereby supporting biodiversity.…”

Section: Introductionmentioning

confidence: 99%

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Comparing the characteristics of boom-corridor and selectively thinned stands of Scots pine and birch

Nuutinen¹,

Miina²,

Saksa³

et al. 2021

Silva Fenn.

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Young, dense forest in Finland and Sweden urgently need to receive first thinning. In such stands, conventional selective thinning methods make the harvester work time consuming and, thus, costly. To make small-sized trees economically competitive as raw material for bioenergy and biorefining, new harvesting technologies and/or thinning methods need to be developed. A potential solution is boom-corridor thinning (BCT), rendering effective cutting work. The aim of this study was to describe and compare the stand structure of two Scots pine stands ( L.) and one birch-dominated ( Roth with natural downy birch, Ehrh.) stand after BCT and selective thinning at the first thinning phase. Furthermore, simulations were conducted to predict the future stand development after the first thinning treatments. The density of the growing stock was 16â46% higher after BCT treatment than after selective thinning because BCT stands included more small and supressed trees with a dbh < 100 mm. However, the numbers of future crop trees with a dbh > 140 mm per hectare were at the same level in both treatments. The stem volume removal per hectare did not differ between treatments. However, simulation of stand development and intermediate thinning and clearcutting revealed that the total removal volume was 10â18% higher in BCT stands compared to selectively thinned ones. The saw log volumes harvested did, however, not differ between treatments. This study shows that BCT generates stands with higher biodiversity compared to conventional thinning as higher levels of biomass removal can be reached throughout stand rotations.Pinus sylvestrisBetula pendulaB. pubescens

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparing the characteristics of boom-corridor and selectively thinned stands of Scots pine and birch

Nuutinen¹,

Miina²,

Saksa³

et al. 2021

Silva Fenn.

Self Cite

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“…In future forestry, promising avenues may use forest management models based on species mixtures [295] that utilize landscape level patterns in biodiversity. On the other hand, for instance, the risks associated with new thinning regimes [296] need to be carefully evaluated to understand their consequences for insect pests and vectors. A thorough consideration of prevailing FMAs and EU and national level regulations is necessary for design of realistic and integrated intervention strategies against vector insects in different regions.…”

Section: Discussionmentioning

confidence: 99%

Pine Pitch Canker and Insects: Regional Risks, Environmental Regulation, and Practical Management Options

Fernández

Naves

Musolin

et al. 2019

Forests

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Pine pitch canker (PPC), caused by the pathogenic fungus Fusarium circinatum (Nirenberg and O' Donnell), is a serious threat to pine forests globally. The recent introduction of the pathogen 2 of 34 to Southern Europe and its spread in Mediterranean region is alarming considering the immense ecological and economic importance of pines in the region. Pines in forests and nurseries can be infected, resulting in severe growth losses and mortality. The pathogen is known to spread in plants for planting and in seeds, and results from recent studies have indicated that F. circinatum may also spread through phoretic associations with certain insects. With this review, we aim to expand the current understanding of the risk of insect-mediated spread of PPC in different parts of Europe. Through the joint action of a multinational researcher team, we collate the existing information about the insect species spectrum in different biogeographic conditions and scrutinize the potential of these insects to transmit F. circinatum spores in forests and nurseries. We also discuss the impact of environmental factors and forest management in this context. We present evidence for the existence of a high diversity of insects with potential to weaken pines and disseminate PPC in Europe, including several common beetle species. In many parts of Europe, temperatures are projected to rise, which may promote the activity of several insect species, supporting multivoltinism and thus, further amplifying the risk of insect-mediated dissemination of PPC. Integrated pest management (IPM) solutions that comply with forest management practices need to be developed to reduce this risk. We recommend careful monitoring of insect populations as the basis for successful IPM. Improved understanding of environmental control of the interaction between insects, the pathogen, and host trees is needed in order to support development of bio-rational strategies to safeguard European pine trees and forests against F. circinatum in future.

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“…Plantations are thus expected to reduce the pressure on the existing natural forests, promote biodiversity conservation and carbon sequestration, restore degraded forests, reduce soil erosion, connect fragmented landscapes, and provide alternative livelihood for forest-fringe communities [1,11,12]. According to Nilsson and Schopfhauser [13], plantation establishment could result in 345 million hectares of new forests that would sequester about 1.5 Gt of carbon per year, equivalent to about 30 percent of global anthropogenic carbon emissions.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Understorey Floristic Diversity and Carbon Stocks in Poorly and Intensively Managed Tectona grandis Plantations

Asare

Asante

Owusu-Prempeh

et al. 2020

International Journal of Forestry Research

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The role of forest plantations in carbon sequestration and biodiversity conservation is a topical issue among researchers and policymakers globally. This study compares understorey floristic diversity and carbon stock of a 15-year-old monoculture Tectona grandis plantation under intensive and poor management in a dry semideciduous ecological zone of Ghana. The study employed a nested plot design with twelve (12) 50 m × 50 m plots laid at 50 m intervals along a diagonal line transect on both study sites for the sampling of Tectona grandis trees. Understorey trees, shrubs, and climbers were sampled within 10 m × 10 m subplot, whilst grasses and herbs were sampled within 1 m × 1 m quadrats. The study revealed a significantly higher understorey species diversity in the intensively managed plantation (Shannon index; species richness) compared with that of the poorly managed plantation. Similarly, total biomass (189.80 ± 1.846 Mg/ha) and carbon stock (94.90 ± 0.92 Mg C/ha) in the intensively managed plantation were observed to be significantly higher than the poorly managed plantation (biomass: 138.54 ± 3.70 Mg/ha; carbon stock: 64.27 ± 1.85 Mg C/ha), whiles the species composition between the two sites was different (Sorenson’s similarity index: 0.47). The study, therefore, concludes that silvicultural forest management interventions improve the understorey floristic diversity and carbon stock in monoculture plantations. Consequently, the study recommends the adoption of silvicultural interventions in plantation management in Ghana to improve their contributions to carbon sequestration and floristic diversity conservation.

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Variable corridor thinning – a cost-effective key to provision of multiple ecosystem services from young boreal conifer forests?

Cited by 14 publications

References 106 publications

Comparing the characteristics of boom-corridor and selectively thinned stands of Scots pine and birch

Comparing the characteristics of boom-corridor and selectively thinned stands of Scots pine and birch

Pine Pitch Canker and Insects: Regional Risks, Environmental Regulation, and Practical Management Options

Comparative Analysis of Understorey Floristic Diversity and Carbon Stocks in Poorly and Intensively Managed Tectona grandis Plantations

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