Aboveground biomass basic density of hardwoods tree species.

Petráš, Rudolf; Mecko, J.; Krupová, Danica; Pažitný, Andrej

doi:10.37763/wr.1336-4561/65.6.10011012

Cited by 10 publications

(8 citation statements)

References 6 publications

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“…Dibdiakova and Vadla (2012), who studied the density of P. abies bark, also found it denser than density of the stem wood regardless of the height in the tree. The same result was reported by Petráš et al (2019) for P. abies and other species.…”

Section: Difference Of Bd Between Tree Componentssupporting

confidence: 90%

Improving aboveground biomass estimates by taking into account density variations between tree components

Billard

Bauer

Mothe

et al. 2020

Annals of Forest Science

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Key message Strong density differences were observed between stem wood at 1.30 m and other tree components (stem wood, stem bark, knots, branch stumps and branches). The difference, up to 40% depending on the component, should be taken into account when estimating the biomass available for industrial uses, mainly fuelwood and wood for chemistry.• Context Basic density is a major variable in the calculation of tree biomass. However, it is usually measured on stem wood only and at breast height.• Aims The objectives of this study were to compare basic density of stem wood at 1.30 m with other tree components and assess the impact of differences on biomass.• Methods Three softwood species were studied: Abies alba Mill., Picea abies (L.) H. Karst., Pseudotsuga menziesii (Mirb.) Franco. X-Ray computed tomography was used to measure density.• Results Large differences were observed between components. Basic density of components was little influenced by tree size and stand density. Overall, bark, knot and branch biomasses were highly underestimated by using basic density measured at 1.30 m.• Conclusion Using available wood density databases mainly based on breast height measurements would lead to important biases (up to more than 40%) on biomass estimates for some tree components. Further work is necessary to complete available databases.

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Section: Difference Of Bd Between Tree Componentssupporting

confidence: 90%

Improving aboveground biomass estimates by taking into account density variations between tree components

Billard

Bauer

Mothe

et al. 2020

Annals of Forest Science

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“…The energy stored in the above-ground biomass of the mean trees of the studied coniferous species was calculated on the basis of the measured calorific values, tables of model volumes of trees [22], as well as the model density values for bark, wood, and small-wood [31]. Mathematical models of classical tree volume tables show the volume of whole trees v (m 3 ) in relation to their diameters DBH (cm), heights h (m) and main components (round-wood with or without bark, bark, and small-wood).…”

Section: Calculation Proceduresmentioning

confidence: 99%

“…where: CH(DBH, h)-the energy reserve of the tree (GJ tree −1 ); v i -the volume of i-th fraction (stem wood, stem bark, small-wood) taken over from the volume tables [22] (m 3 ); ρ i -basic density of the i-th fraction taken from [31] (kg m −3 ); CH i -the calorific value of the i-th fraction (MJ kg −1 ); m 0 -the dry matter weight of the twigs and needles taken from [32] (kg); CH twne -the calorific value of the twigs and needles (MJ kg −1 ). The dry weight of the above-ground biomass of the model trees at different stages of their development was calculated using equation (1), from which the items CH i and CH twne representing the combustion heat were omitted.…”

Section: Calculation Proceduresmentioning

confidence: 99%

Energy Stored in Above-Ground Biomass Fractions and Model Trees of the Main Coniferous Woody Plants

et al. 2021

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The paper considers energy stored in above-ground biomass fractions and in model trees of the main coniferous woody plants (Picea abies (L.) H. Karst., Abies alba Mill., Pinus sylvestris (L.), Larix decidua Mill.), sampled in 22 forest stands selected in different parts of Slovakia. A total of 43 trees were felled, of which there were 12 spruces, 11 firs, 10 pines, and 10 larches. Gross and net calorific values were determined in samples of wood, bark, small-wood, twigs, and needles. Our results show that these values significantly depend on the tree species, biomass fractions, and sampling point on the tree. The energy stored in the model trees calculated on the basis of volume production taken from yield tables increases as follows: spruce < fir < pine < larch. Combustion of tree biomass releases an aliquot amount of a greenhouse gas—CO2, as well as an important plant nutrient, nitrogen—into the atmosphere. The obtained data must be taken into account in the case of the economic utilization of energy stored in the fractions of above-ground tree biomass and in whole trees. The achieved data can be used to assess forest ecosystems in terms of the flow of solar energy, its accumulation in the various components of tree biomass, and the risk of biomass combustion in relation to the release of greenhouse gases.

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“…Waste generated by the forestry and forest products sector, such as pine bark and pinecones, poses significant challenges for the logging, lumbering, and construction industries. The density of pine bark is approximately 333 kg/m 3 [65]. With a thermal conductivity of 0.128 W/m•K, Calabrian pine bark demonstrates excellent thermal insulation properties when used in composites [66].…”

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confidence: 99%

Assessing the Role and Efficiency of Thermal Insulation by the “BIO-GREEN PANEL” in Enhancing Sustainability in a Built Environment

Almusaed,

Almssad,

Alasadi

et al. 2023

Sustainability

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The pressing concern of climate change and the imperative to mitigate CO2 emissions have significantly influenced the selection of outdoor plant species. Consequently, evaluating CO2’s environmental effects on plants has become integral to the decision-making process. Notably, reducing greenhouse gas (GHG) emissions from buildings is significant in tackling the consequences of climate change and addressing energy deficiencies. This article presents a novel approach by introducing plant panels as an integral component in future building designs, epitomizing the next generation of sustainable structures and offering a new and sustainable building solution. The integration of environmentally friendly building materials enhances buildings’ indoor environments. Consequently, it becomes crucial to analyze manufacturing processes in order to reduce energy consumption, minimize waste generation, and incorporate green technologies. In this context, experimentation was conducted on six distinct plant species, revealing that the energy-saving potential of different plant types on buildings varies significantly. This finding contributes to the economy’s improvement and fosters enhanced health-related and environmental responsibility. The proposed plant panels harmonize various building components and embody a strategic approach to promote health and well-being through bio-innovation. Furthermore, this innovative solution seeks to provide a sustainable alternative by addressing the challenges of unsustainable practices, outdated standards, limited implementation of new technologies, and excessive administrative barriers in the construction industry. The obtained outcomes will provide stakeholders within the building sector with pertinent data concerning performance and durability. Furthermore, these results will enable producers to acquire essential information, facilitating product improvement.

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Aboveground biomass basic density of hardwoods tree species.

Cited by 10 publications

References 6 publications

Improving aboveground biomass estimates by taking into account density variations between tree components

Improving aboveground biomass estimates by taking into account density variations between tree components

Energy Stored in Above-Ground Biomass Fractions and Model Trees of the Main Coniferous Woody Plants

Assessing the Role and Efficiency of Thermal Insulation by the “BIO-GREEN PANEL” in Enhancing Sustainability in a Built Environment

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