Fibre wall and lumen fractions drive wood density variation across 24 Australian angiosperms

Ziemiñska, Kasia; Butler, Don; Gleason, Sean M.; Wright, Ian J.; Westoby, Mark

doi:10.1093/aobpla/plt046

Cited by 140 publications

(169 citation statements)

References 60 publications

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“…Low-density wood is mechanically weaker [64][65][66][67][68][69][70] because a volume extension of wood requires fewer resources to construct [71], so it has been reported that wood density has a negative relationship with decomposition rate [72]. However, our results disagreed with previous studies regarding the relationship between mass loss and wood density, and indicated a positive relationship between the decomposition rate and wood density in both early and late stages of decomposition (Figure 3).…”

Section: Discussioncontrasting

confidence: 99%

Branch Wood Decomposition of Tree Species in a Deciduous Temperate Forest in Korea

Cha

Chae

Lee

et al. 2017

Forests

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Abstract:Woody debris, which is supplied by branch litter, is an important component of forest ecosystems as it contains large quantities of organic matter and nutrients. We evaluated changes in branch wood dry weight and nutrient content of six common species (Fraxinus rhynchophylla, Pinus densiflora, Prunus sargentii, Quercus mongolica, Acer pseudosieboldianum, and Symplocos chinensis for. pilosa) in a deciduous temperate forest in Korea for 40 months. Branch wood disk samples 1.4-1.6 cm thick were cut, and mass loss was measured over time using the litterbag method. No significant differences in mass loss were recorded among the six tree species. Further, mass loss was negatively correlated with initial lignin concentration and positively correlated with both initial cellulose concentration and wood density for each species. Species with high wood cellulose content had high wood density while the lignin content in wood was relatively low. Accordingly, cellulose contributed to wood density, creating a relatively lower lignin content, and the decreased lignin concentration increased the wood decomposition rate.

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Section: Discussioncontrasting

confidence: 99%

Branch Wood Decomposition of Tree Species in a Deciduous Temperate Forest in Korea

Cha

Chae

Lee

et al. 2017

Forests

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“…The aforementioned numbers represent values typically encountered in wood (Fig. 8.1g ) (Von Frey-Wyssling and Aeberli 1942 ;Wagenführ 2007 ;Ruelle et al 2006 ;Zieminska et al 2013 ); however, more extreme values also occur. For example, very low ray proportions of around 7 % were reported for two Acacia species (Zieminska et al 2013 ), while very high axial parenchyma proportions of 67 % were measured in Ceiba aesculifolia ( Fig.…”

Section: How Much Ray and Axial Parenchyma Occurs In Wood?mentioning

confidence: 95%

The Role of Xylem Parenchyma in the Storage and Utilization of Nonstructural Carbohydrates

Plavcová

Jansen

2015

Functional and Ecological Xylem Anatomy

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“…Indeed, the fiber morphological properties of wood largely determine its density [37]. Higher fiber proportion and fiber wall thickness are associated with higher wood density [38,39]. On the other hand, a high percentage of vessel proportion will yield hydraulic conductivity, which could cause higher shrinkage, and a disruption in wood structure.…”

Section: Phenotypic Correlations Between Wood Propertiesmentioning

confidence: 99%

Phenotypic and Genotypic Correlations for Wood Properties of Hybrid Poplar Clones of Southern Quebec

Huda

Koubaa

Cloutier

et al. 2018

Forests

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This study aims to understand the phenotypic and genotypic correlations among wood anatomical, physical, and mechanical properties of hybrid poplar clones. Samples were taken from seven clones grown on three sites in Southern Quebec, Canada. Five trees per clone were randomly sampled from each site to measure anatomical (fiber length, fiber proportion, vessel proportion, fiber wall thickness, tension wood), physical (basic density, volumetric, longitudinal, tangential, and radial shrinkage), and mechanical wood properties (flexural modulus of elasticity (MOE), modulus of rupture (MOR), ultimate crushing strength parallel to the grain). The observed phenotypic and genotypic correlations between these wood properties were moderate to strong, except for fiber length and vessel proportion. Genotypic correlations for all wood properties were higher than for corresponding phenotypic correlations. Furthermore, fiber length showed weak correlations, whereas, vessel proportion showed strongly negative correlations with all other properties. Strong correlations were also found among fiber proportion, fiber wall thickness, basic density, and mechanical properties. Furthermore, results from this study show close genotypic and phenotypic correlations between fiber proportion, fiber wall thickness, and wood density, which consequently affect the mechanical performance of wood products. These findings indicate that there is a substantial opportunity to improve wood quality by selecting several wood properties for different end uses.

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Fibre wall and lumen fractions drive wood density variation across 24 Australian angiosperms

Cited by 140 publications

References 60 publications

Branch Wood Decomposition of Tree Species in a Deciduous Temperate Forest in Korea

Branch Wood Decomposition of Tree Species in a Deciduous Temperate Forest in Korea

The Role of Xylem Parenchyma in the Storage and Utilization of Nonstructural Carbohydrates

Phenotypic and Genotypic Correlations for Wood Properties of Hybrid Poplar Clones of Southern Quebec

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