Revista y Edición

Volumen 68 (2022): Edición 3 (September 2022)

Volumen 68 (2022): Edición 2 (June 2022)

Volumen 68 (2022): Edición 1 (March 2022)

Volumen 67 (2021): Edición 4 (December 2021)

Volumen 67 (2021): Edición 3 (September 2021)

Volumen 67 (2021): Edición 2 (June 2021)

Volumen 67 (2021): Edición 1 (March 2021)

Volumen 66 (2020): Edición 4 (December 2020)

Volumen 66 (2020): Edición 3 (September 2020)

Volumen 66 (2020): Edición 2 (June 2020)

Volumen 66 (2020): Edición 1 (March 2020)

Volumen 65 (2019): Edición 3-4 (September 2019)

Volumen 65 (2019): Edición 2 (June 2019)

Volumen 65 (2019): Edición 1 (March 2019)

Volumen 64 (2018): Edición 2 (June 2018)

Volumen 64 (2018): Edición 1 (March 2018)

Volumen 63 (2017): Edición 4 (September 2017)

Volumen 63 (2017): Edición 2-3 (June 2017)

Volumen 63 (2017): Edición 1 (March 2017)

Volumen 59 (2013): Edición 4 (December 2013)

Volumen 59 (2013): Edición 3 (September 2013)

Volumen 59 (2013): Edición 2 (June 2013)

Volumen 59 (2013): Edición 1 (March 2013)

Volumen 58 (2012): Edición 4 (December 2012)

Volumen 58 (2012): Edición 3 (September 2012)

Volumen 58 (2012): Edición 2 (June 2012)

Volumen 58 (2012): Edición 1 (March 2012)

Volumen 57 (2011): Edición 4 (December 2011)

Volumen 57 (2011): Edición 3 (September 2011)

Volumen 57 (2011): Edición 2 (June 2011)

Volumen 57 (2011): Edición 1 (March 2011)

Volumen 56 (2010): Edición 4 (December 2010)

Volumen 56 (2010): Edición 3 (September 2010)

Volumen 56 (2010): Edición 2 (June 2010)

Volumen 56 (2010): Edición 1 (March 2010)

Volumen 55 (2009): Edición 4 (December 2009)

Volumen 55 (2009): Edición 3 (September 2009)

Volumen 55 (2009): Edición 2 (June 2009)

Volumen 55 (2009): Edición 1 (March 2009)

Detalles de la revista
Formato
Revista
eISSN
2454-0358
Publicado por primera vez
14 Dec 2009
Periodo de publicación
4 veces al año
Idiomas
Inglés

Buscar

Volumen 68 (2022): Edición 1 (March 2022)

Detalles de la revista
Formato
Revista
eISSN
2454-0358
Publicado por primera vez
14 Dec 2009
Periodo de publicación
4 veces al año
Idiomas
Inglés

Buscar

6 Artículos
access type Acceso abierto

Influence of water supply on cork increment and quality in Quercus suber L.

Publicado en línea: 08 Mar 2022
Páginas: 3 - 14

Resumen

Abstract

Cork oak (Quercus suber L.) grows in the Mediterranean basis including Portugal and is the main species producing cork which is used prevailingly in stopper industry. In our paper, cork from Quercus suber L. over three consecutive harvests from a traditional rainfed plot, between 1999 and 2017, and cork from an irrigated plot, harvested in 2017, were studied. We applied two X–ray image analysis technologies – X–ray micro-computed tomography and X–ray microdensitometry. Cork development, related with intern porosity, growth and density was studied with the objective of understanding the cork characteristics evolution over the years and with a different water regime. The outcomes of this study suggested an increase in density and porosity over harvests and a slight decrease of the cork growth. Cork samples from the irrigated plot, compared with cork from the same year of extraction in the rainfed plot, showed higher growth rate and higher porosity. The results demonstrated the contribution of climatic factor of precipitation as well as the silviculture model in cork characteristics, showing the relevance of the present work for the definition of the management practices. These may be determinant for enhancing cork quality and quantity production through silviculture measures. Our findings can be particularly useful for stakeholders especially under the conditions of Portugal in terms of increasing the value of the industrial chain of cork.

Palabras clave

  • cork oak
  • cork characteristics
  • image analysis
  • X–ray micro-computed tomography
  • X–ray microdensitometry
access type Acceso abierto

Potential for carbon sequestration and the actual forest structure: the case of Krasnodar Krai in Russia

Publicado en línea: 08 Mar 2022
Páginas: 15 - 22

Resumen

Abstract

This work aims to analyze the age structure of forests in Krasnodar Krai in order to estimate their carbon sequestration potential. The research was conducted during 2015–2020 in 14 forested districts of Krasnodar Krai in the Russian Federation. A database of 96,000 sample plots was used. Aspen occupied the maximum area (20% of trees), while much smaller areas were occupied by linden, birch, pine, and oak (p≥0.05 with aspen). Spruce occupied three times smaller areas compared to aspen (p≤0.05), while maple, elm, ash, and alder had ten times smaller areas (p≤0.01). Among deciduous species by age, mature and overmature stands predominate, while in conifers a young growth prevails (44% – for pines). All pine forests belong to the 1st quality class (91%), for birch and aspen, it is 75–80% of trees (p≤0.05 with the frequency for pine), for spruce – 52% (p≤0.05), and for oak – 10% (p≤0.01). Different tree species make different contributions to carbon sequestration – from 0.3 tons per 1 ha (Alnus glutinosa) to 1.7 tons per ha (Fraxinus excelsior). Taking into account the areas occupied in the forest by different tree species, their contribution will also be different – from 0.5 thousand tons/1 year (F. excelsior) to 290 thousand tons per 1 year (Populus tremula). The total increase in wood stocks and carbon sequestration is mainly due to six forest tree species. The results obtained can be used to assess the potential for carbon sequestration in temperate forests, taking into account their different age structure and tree species composition.

Palabras clave

  • carbon sequestration
  • forest plantations
  • tree species
  • trunk wood volume
  • wood increment
access type Acceso abierto

Impact of interest rates on forest management planning based on multi-criteria decision analysis

Publicado en línea: 08 Mar 2022
Páginas: 23 - 35

Resumen

Abstract

The fulfilment of forest functions is significantly affected by forest management, especially the applied harvest regeneration systems. The interest rate can significantly influence forest regeneration planning but was rarely tested. We examined how different interest rates (0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3%) affect the fulfilment of multiple forest functions and hence, the decision on the optimal forest regeneration system for multiple criteria. The analysis was performed based on the simulation of 450 different harvest-regeneration systems applied to a secondary spruce dominated forest stand and the multi-criteria a posteriori decision analysis. The outputs from the growth simulator were used to quantify the fulfilment of timber production and non-production functions. Three selected indicators (Soil expectation value, Shannon index of species diversity, and height to diameter ratio) were analysed on the base of single-criteria optimisation based on maximising a single indicator and the methods of multi-criteria optimisation of the weighted sum method and Pareto front with the goal to harmonise the fulfilment of three different functions. The results indicated that lower interest rates favoured single tree cutting systems with relatively long rotation cycles (140–160 years), while higher interest rates favoured strip cutting with shorter rotation cycles (90–100 years).

Palabras clave

  • multi-criteria optimisation
  • Pareto front
  • weighted sum method
  • timber production
  • species diversity
  • stand stability
access type Acceso abierto

Polydrusus aeratus (Coleoptera: Curculionidae: Entiminae): a potential pest of young coniferous stands

Publicado en línea: 08 Mar 2022
Páginas: 36 - 42

Resumen

Abstract

Polydrusus aeratus Gravenhorst, 1807 is a pest of both coniferous and deciduous trees in forests. It is widespread throughout the Czech Republic from the lowlands to the mountains. Adult beetles occur from April to September. In the western Czech Republic, a number of 1- to 2-m tall Abies alba were recently damaged by P. aeratus adults at an altitude of 750 m. P. aeratus can damage older saplings that were damaged as young saplings by the pine weevil. The damage caused by P. aeratus is so for rather small but should not be neglected by foresters. As the ongoing climate change modifies the relationship between trees and pests, also currently indifferent species may become dangerous for forests in near feature. Therefore, scientists would focus also on relatively less dangerous species of pests, especially insects. Possible methods for controlling of P. aeratus are suggested as main output of the study.

Palabras clave

  • Central Europe
  • climate change
  • damage
  • sapling
access type Acceso abierto

Provision of periurban zones of small towns of Kyiv region by forests as a factor of eco-stability

Publicado en línea: 08 Mar 2022
Páginas: 43 - 50

Resumen

Abstract

Humanity has come to the conclusion about the need for eco-balanced planning of territorial land use at both regional and local levels. The object of research is the periurban areas around 20 small towns of the Kyiv region – the most common category of cities in Ukraine. The provision of periurban areas of small towns with forests is analyzed taking into account three indicators: population in cities, distance to the nearest forests and their size. It was found that forests are absent in the vicinity of most small towns in the region which are mostly surrounded by arable land. Small towns are grouped into four clusters according to the similarity of forest provision of periurban zones with indicators: average (55% of towns); improved (Vyshhorod, Bucha); with the best situation (Irpin); worse (Vyshneve, Myronivka, Uzyn, Skvyra, Tetiiv, Yahotyn). Each such cluster requires the development of certain strategies for the formation of periurban green infrastructure, which will include both protective green stands and recreational areas. Therefore, around the small towns of Kyiv region it is recommended to immediately form periurban recreational and protective zones with a predominance of forests. This will dramatically improve the environmental situation and contribute to the environmental and social sustainability of urban areas.

Palabras clave

  • cluster analysis
  • ecological situation
  • forest cover
  • green infrastructure
  • recreational zone
access type Acceso abierto

Analysis of modern wood processing techniques in timber terminals

Publicado en línea: 08 Mar 2022
Páginas: 51 - 59

Resumen

Abstract

The transportation of forestry products is performed over long distances and is quite expensive, which limits the development of biofuel plants in Russia and around the world. The use of timber terminals contributes to transportation cost reduction and mitigates negative environmental impacts. This work aims to analyze various technological solutions for optimization of forestry products processing at temporary terminals and cost reduction of transportation, shipping, and wood treatment. The work presents a discussion on the technological and economic possibilities of the mobile pellet plant, the mobile essential oil production plant, and an enhanced autonomous electric generator system. It is shown that the use of mobile plants for obtaining pellets and essential oils allows processing wood residues at the terminal, which reduces the cost of transportation and shipment of raw materials and improves the quality of the finished products. The current study also examines some of the modern scanning technologies used to detect log defects and obtain complete biometric information in real time while assessing the productivity of wood processing operations. The results of the study can be used to develop efficient movable timber terminals.

Palabras clave

  • energy wood
  • equipment
  • fuel
  • storage location
  • supply chain
6 Artículos
access type Acceso abierto

Influence of water supply on cork increment and quality in Quercus suber L.

Publicado en línea: 08 Mar 2022
Páginas: 3 - 14

Resumen

Abstract

Cork oak (Quercus suber L.) grows in the Mediterranean basis including Portugal and is the main species producing cork which is used prevailingly in stopper industry. In our paper, cork from Quercus suber L. over three consecutive harvests from a traditional rainfed plot, between 1999 and 2017, and cork from an irrigated plot, harvested in 2017, were studied. We applied two X–ray image analysis technologies – X–ray micro-computed tomography and X–ray microdensitometry. Cork development, related with intern porosity, growth and density was studied with the objective of understanding the cork characteristics evolution over the years and with a different water regime. The outcomes of this study suggested an increase in density and porosity over harvests and a slight decrease of the cork growth. Cork samples from the irrigated plot, compared with cork from the same year of extraction in the rainfed plot, showed higher growth rate and higher porosity. The results demonstrated the contribution of climatic factor of precipitation as well as the silviculture model in cork characteristics, showing the relevance of the present work for the definition of the management practices. These may be determinant for enhancing cork quality and quantity production through silviculture measures. Our findings can be particularly useful for stakeholders especially under the conditions of Portugal in terms of increasing the value of the industrial chain of cork.

Palabras clave

  • cork oak
  • cork characteristics
  • image analysis
  • X–ray micro-computed tomography
  • X–ray microdensitometry
access type Acceso abierto

Potential for carbon sequestration and the actual forest structure: the case of Krasnodar Krai in Russia

Publicado en línea: 08 Mar 2022
Páginas: 15 - 22

Resumen

Abstract

This work aims to analyze the age structure of forests in Krasnodar Krai in order to estimate their carbon sequestration potential. The research was conducted during 2015–2020 in 14 forested districts of Krasnodar Krai in the Russian Federation. A database of 96,000 sample plots was used. Aspen occupied the maximum area (20% of trees), while much smaller areas were occupied by linden, birch, pine, and oak (p≥0.05 with aspen). Spruce occupied three times smaller areas compared to aspen (p≤0.05), while maple, elm, ash, and alder had ten times smaller areas (p≤0.01). Among deciduous species by age, mature and overmature stands predominate, while in conifers a young growth prevails (44% – for pines). All pine forests belong to the 1st quality class (91%), for birch and aspen, it is 75–80% of trees (p≤0.05 with the frequency for pine), for spruce – 52% (p≤0.05), and for oak – 10% (p≤0.01). Different tree species make different contributions to carbon sequestration – from 0.3 tons per 1 ha (Alnus glutinosa) to 1.7 tons per ha (Fraxinus excelsior). Taking into account the areas occupied in the forest by different tree species, their contribution will also be different – from 0.5 thousand tons/1 year (F. excelsior) to 290 thousand tons per 1 year (Populus tremula). The total increase in wood stocks and carbon sequestration is mainly due to six forest tree species. The results obtained can be used to assess the potential for carbon sequestration in temperate forests, taking into account their different age structure and tree species composition.

Palabras clave

  • carbon sequestration
  • forest plantations
  • tree species
  • trunk wood volume
  • wood increment
access type Acceso abierto

Impact of interest rates on forest management planning based on multi-criteria decision analysis

Publicado en línea: 08 Mar 2022
Páginas: 23 - 35

Resumen

Abstract

The fulfilment of forest functions is significantly affected by forest management, especially the applied harvest regeneration systems. The interest rate can significantly influence forest regeneration planning but was rarely tested. We examined how different interest rates (0%, 0.5%, 1%, 1.5%, 2%, 2.5% and 3%) affect the fulfilment of multiple forest functions and hence, the decision on the optimal forest regeneration system for multiple criteria. The analysis was performed based on the simulation of 450 different harvest-regeneration systems applied to a secondary spruce dominated forest stand and the multi-criteria a posteriori decision analysis. The outputs from the growth simulator were used to quantify the fulfilment of timber production and non-production functions. Three selected indicators (Soil expectation value, Shannon index of species diversity, and height to diameter ratio) were analysed on the base of single-criteria optimisation based on maximising a single indicator and the methods of multi-criteria optimisation of the weighted sum method and Pareto front with the goal to harmonise the fulfilment of three different functions. The results indicated that lower interest rates favoured single tree cutting systems with relatively long rotation cycles (140–160 years), while higher interest rates favoured strip cutting with shorter rotation cycles (90–100 years).

Palabras clave

  • multi-criteria optimisation
  • Pareto front
  • weighted sum method
  • timber production
  • species diversity
  • stand stability
access type Acceso abierto

Polydrusus aeratus (Coleoptera: Curculionidae: Entiminae): a potential pest of young coniferous stands

Publicado en línea: 08 Mar 2022
Páginas: 36 - 42

Resumen

Abstract

Polydrusus aeratus Gravenhorst, 1807 is a pest of both coniferous and deciduous trees in forests. It is widespread throughout the Czech Republic from the lowlands to the mountains. Adult beetles occur from April to September. In the western Czech Republic, a number of 1- to 2-m tall Abies alba were recently damaged by P. aeratus adults at an altitude of 750 m. P. aeratus can damage older saplings that were damaged as young saplings by the pine weevil. The damage caused by P. aeratus is so for rather small but should not be neglected by foresters. As the ongoing climate change modifies the relationship between trees and pests, also currently indifferent species may become dangerous for forests in near feature. Therefore, scientists would focus also on relatively less dangerous species of pests, especially insects. Possible methods for controlling of P. aeratus are suggested as main output of the study.

Palabras clave

  • Central Europe
  • climate change
  • damage
  • sapling
access type Acceso abierto

Provision of periurban zones of small towns of Kyiv region by forests as a factor of eco-stability

Publicado en línea: 08 Mar 2022
Páginas: 43 - 50

Resumen

Abstract

Humanity has come to the conclusion about the need for eco-balanced planning of territorial land use at both regional and local levels. The object of research is the periurban areas around 20 small towns of the Kyiv region – the most common category of cities in Ukraine. The provision of periurban areas of small towns with forests is analyzed taking into account three indicators: population in cities, distance to the nearest forests and their size. It was found that forests are absent in the vicinity of most small towns in the region which are mostly surrounded by arable land. Small towns are grouped into four clusters according to the similarity of forest provision of periurban zones with indicators: average (55% of towns); improved (Vyshhorod, Bucha); with the best situation (Irpin); worse (Vyshneve, Myronivka, Uzyn, Skvyra, Tetiiv, Yahotyn). Each such cluster requires the development of certain strategies for the formation of periurban green infrastructure, which will include both protective green stands and recreational areas. Therefore, around the small towns of Kyiv region it is recommended to immediately form periurban recreational and protective zones with a predominance of forests. This will dramatically improve the environmental situation and contribute to the environmental and social sustainability of urban areas.

Palabras clave

  • cluster analysis
  • ecological situation
  • forest cover
  • green infrastructure
  • recreational zone
access type Acceso abierto

Analysis of modern wood processing techniques in timber terminals

Publicado en línea: 08 Mar 2022
Páginas: 51 - 59

Resumen

Abstract

The transportation of forestry products is performed over long distances and is quite expensive, which limits the development of biofuel plants in Russia and around the world. The use of timber terminals contributes to transportation cost reduction and mitigates negative environmental impacts. This work aims to analyze various technological solutions for optimization of forestry products processing at temporary terminals and cost reduction of transportation, shipping, and wood treatment. The work presents a discussion on the technological and economic possibilities of the mobile pellet plant, the mobile essential oil production plant, and an enhanced autonomous electric generator system. It is shown that the use of mobile plants for obtaining pellets and essential oils allows processing wood residues at the terminal, which reduces the cost of transportation and shipment of raw materials and improves the quality of the finished products. The current study also examines some of the modern scanning technologies used to detect log defects and obtain complete biometric information in real time while assessing the productivity of wood processing operations. The results of the study can be used to develop efficient movable timber terminals.

Palabras clave

  • energy wood
  • equipment
  • fuel
  • storage location
  • supply chain

Planifique su conferencia remota con Sciendo