Planting spacing influences radial variation of basic density and chemical composition of wood from fast growing young <i>Eucalyptus</i> plantations

Pimenta, Emanuella Mesquita; Brito, Emilly Gracielly dos Santos; Gomes, Paola Freitas; Ramalho, Fernanda Maria Guedes; Vidaurre, Graziela Baptista; Couto, Allan Motta; Campoe, Otávio Camargo; Hein, Paulo Ricardo Gherardi

doi:10.1515/hf-2023-0016

Cited by 4 publications

(2 citation statements)

References 34 publications

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“…Thus, wide genetic variability probably overcame the effect of spacing on lignin and cellulose contents. The effect of planting spacing on the chemical composition of clonal Eucalyptus wood was reported in the literature [34,35]. Therefore, this issue needs further investigation for T. vulgaris plantations.…”

Section: Gravimetric Yields Of the Pyrolysis Processmentioning

confidence: 99%

Exploring the potential of the Tachigali vulgaris wood from an experimental planting for producing charcoal in the Eastern Amazonia

Junior,

Lima,

de Assis

et al. 2024

Preprint

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Eastern Amazonia faces a shortage of plantations to fulfill both industrial and domestic energy needs, particularly in remote and isolated areas. The uniqueness of this study lies in assessing for the first time the impact of planting spacing (4.5, 6.0, 7.5, 9.0, 10.5, and 12.0 m2 plant− 1) and forking of Tachigali vulgaris on charcoal productivity and quality. Wood samples from 54 trees were pyrolyzed at 450°C for 30 min and comprehensively characterized (apparent density, specific firewood consumption, mass balance, proximate composition, heating value, and charcoal productivity). Charcoal’s apparent density increased in the wider spacings (except for 4.5 m2), ranging from 0.294 g cm–3 (4.5 m2) to 0.338 g cm–3 (10.5 m2). Less dense charcoals (0.316 g cm–3) were found for forked trees in opposite to non-forked trees (0.338 g cm–3). The specific consumption of firewood decreased in wider spacings (6.7 to 5.5 m3 of wood ton–1 of charcoal) and increased for forked trees (6.0 m3 of wood ton–1 of charcoal) compared to non-forked trees (5.5 m3 of wood ton–1 of charcoal). Spacings had no significant impact on charcoal gravimetric yields (35–36% based on dry mass - db), pyroligneous liquid (45–48% db), non-condensable gases (17–19% db), volatile matter (26% db), ashes (1.22% db), fixed carbon (73% db), higher heating value (30 MJ kg–1), and charcoal productivity (26 t ha–1 and 3.4 t ha–1 year–1). Results revealed that Tachigali vulgaris wood from experimental planting is promising for sustainable charcoal production in Eastern Amazonia.

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Section: Gravimetric Yields Of the Pyrolysis Processmentioning

confidence: 99%

Exploring the potential of the Tachigali vulgaris wood from an experimental planting for producing charcoal in the Eastern Amazonia

Junior,

Lima,

de Assis

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Reasons for WD variation are complex. It may be, for example, due to differences in anatomical, physical, and chemical properties of wood produced by trees with different growth habits [40].…”

Section: Interspecific and Intra-tree Differences In Wood Propertiesmentioning

confidence: 99%

Wood Density and Carbon Concentration Jointly Drive Wood Carbon Density of Five Rosaceae Tree Species

Guo,

Zhao,

Wang

et al. 2024

Forests

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Wood can store carbon and help mitigate global climate change. Carbon density (CD), the basis for measuring and analyzing C storage, is the product of wood density (WD) and C concentration, which are dependent on wood structure, cellulose concentration (CC), hemicellulose concentration (HC), and lignin concentration (LC). However, little attention has been paid to the C concentration of cellulose, hemicellulose, and lignin, which are fundamental factors in C storage and affect the credibility of accurate CD estimates. In order to disentangle the CD drives, WD, C concentration, CC, HC, and LC of the branch, stem, and root were quantified for five Rosaceae species from temperate forests in Northeastern China. The species were Sorbus alnifolia (Sieb.et Zucc.) K. Koch, Pyrus ussuriensis Maxim., Malus baccata (L.) Borkh., Crataegus pinnatifida var. major N. E. Brown, and Padus racemosa (Linn.) Gilib. The WD, CC, HC, and LC differed among species and tree organs, with the highest variability for the HC. The structural carbon concentration (SCC) was lower than the organic carbon concentration (OCC) and even the Intergovernmental Panel on Climate Change (IPCC) default value of 45%, with a maximum deviation of 2.6%. CD differed dramatically among species and tree organs. Based on SCC calculations, the highest CD was found in Sorbus alnifolia root (0.27 × 106 g/m3), while the lowest was found in Padus racemosa branch (0.22 × 106 g/m3). The results suggest that when estimating CD accurately at species level, it is important to consider not only WD but also structural carbohydrates and lignin concentration, providing important information on C fluxes and long-term C sequestration for forests. The study findings provide valuable insights into CD variations among tree species and organs and are valuable for forest management and policy development to improve carbon sequestration.

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Genetic variation and selection of 10-year-old Eucalyptus camaldulensis based on wind damage index and wood properties

Shang,

Wu,

et al. 2024

J. For. Res.

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Planting spacing influences radial variation of basic density and chemical composition of wood from fast growing young Eucalyptus plantations

Cited by 4 publications

References 34 publications

Exploring the potential of the Tachigali vulgaris wood from an experimental planting for producing charcoal in the Eastern Amazonia

Exploring the potential of the Tachigali vulgaris wood from an experimental planting for producing charcoal in the Eastern Amazonia

Wood Density and Carbon Concentration Jointly Drive Wood Carbon Density of Five Rosaceae Tree Species

Genetic variation and selection of 10-year-old Eucalyptus camaldulensis based on wind damage index and wood properties

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