Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients
Increasing or decreasing wood density (WD) from pith to bark is commonly observed in tropical tree species. The different types of WD radial variations, long been considered to depict the diversity of growth and mechanical strategies among forest guilds (heliophilic vs. shade-tolerant), were never analyzed in the light of heartwood (HW) formation. Yet, the additional mass of chemical extractives associated to HW formation increases WD and might affect both WD radial gradient (i.e., the slope of the relation between WD and radial distance) and pattern (i.e., linear or nonlinear variation). We studied 16 legumes species from French Guiana representing a wide diversity of growth strategies and positions on the shade-tolerance continuum. Using WD measurements and available HW extractives content values, we computed WD corrected by the extractive content and analyzed the effect of HW on WD radial gradients and patterns. We also related WD variations to demographic variables, such as sapling growth and mortality rates. Regardless of the position along the shade-tolerance continuum, correcting WD gradients reveals only increasing gradients. We determined three types of corrected WD patterns: (1) the upward curvilinear pattern is a specific feature of heliophilic species, whereas (2) the linear and (3) the downward curvilinear patterns are observed in both mid- and late-successional species. In addition, we found that saplings growth and mortality rates are better correlated with the corrected WD at stem center than with the uncorrected value: taking into account the effect of HW extractives on WD radial variations provides unbiased interpretation of biomass accumulation and tree mechanical strategies. Rather than a specific feature of heliophilic species, the increasing WD gradient is a shared strategy regardless of the shade tolerance habit. Finally, our study stresses to consider the occurrence of HW when using WD.
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Format: | article biblioteca |
Language: | eng |
Subjects: | K10 - Production forestière, F62 - Physiologie végétale - Croissance et développement, F50 - Anatomie et morphologie des plantes, Fabaceae, arbre, forêt tropicale, ombrage, accroissement du diamètre, bois de coeur, bois de réaction, densité du bois, http://aims.fao.org/aos/agrovoc/c_4256, http://aims.fao.org/aos/agrovoc/c_7887, http://aims.fao.org/aos/agrovoc/c_24904, http://aims.fao.org/aos/agrovoc/c_7020, http://aims.fao.org/aos/agrovoc/c_34812, http://aims.fao.org/aos/agrovoc/c_3518, http://aims.fao.org/aos/agrovoc/c_24890, http://aims.fao.org/aos/agrovoc/c_24549, http://aims.fao.org/aos/agrovoc/c_3093, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/598726/ http://agritrop.cirad.fr/598726/1/2019%20Wood%20Density%20Variations%20of%20Legume%20Trees.pdf |
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dig-cirad-fr-5987262024-01-29T03:37:25Z http://agritrop.cirad.fr/598726/ http://agritrop.cirad.fr/598726/ Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients. Lehnebach Romain, Bossu Julie, Va Stéphanie, Morel Hélène, Amusant Nadine, Nicolini Eric-André, Beauchêne Jacques. 2019. Forests, 10 (2), n.spéc. Wood Science and Tropical Forest Ecology:80, 22 p.https://doi.org/10.3390/f10020080 <https://doi.org/10.3390/f10020080> Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients Lehnebach, Romain Bossu, Julie Va, Stéphanie Morel, Hélène Amusant, Nadine Nicolini, Eric-André Beauchêne, Jacques eng 2019 Forests K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes Fabaceae arbre forêt tropicale ombrage accroissement du diamètre bois de coeur bois de réaction densité du bois http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_34812 http://aims.fao.org/aos/agrovoc/c_3518 http://aims.fao.org/aos/agrovoc/c_24890 http://aims.fao.org/aos/agrovoc/c_24549 Guyane française France http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Increasing or decreasing wood density (WD) from pith to bark is commonly observed in tropical tree species. The different types of WD radial variations, long been considered to depict the diversity of growth and mechanical strategies among forest guilds (heliophilic vs. shade-tolerant), were never analyzed in the light of heartwood (HW) formation. Yet, the additional mass of chemical extractives associated to HW formation increases WD and might affect both WD radial gradient (i.e., the slope of the relation between WD and radial distance) and pattern (i.e., linear or nonlinear variation). We studied 16 legumes species from French Guiana representing a wide diversity of growth strategies and positions on the shade-tolerance continuum. Using WD measurements and available HW extractives content values, we computed WD corrected by the extractive content and analyzed the effect of HW on WD radial gradients and patterns. We also related WD variations to demographic variables, such as sapling growth and mortality rates. Regardless of the position along the shade-tolerance continuum, correcting WD gradients reveals only increasing gradients. We determined three types of corrected WD patterns: (1) the upward curvilinear pattern is a specific feature of heliophilic species, whereas (2) the linear and (3) the downward curvilinear patterns are observed in both mid- and late-successional species. In addition, we found that saplings growth and mortality rates are better correlated with the corrected WD at stem center than with the uncorrected value: taking into account the effect of HW extractives on WD radial variations provides unbiased interpretation of biomass accumulation and tree mechanical strategies. Rather than a specific feature of heliophilic species, the increasing WD gradient is a shared strategy regardless of the shade tolerance habit. Finally, our study stresses to consider the occurrence of HW when using WD. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/598726/1/2019%20Wood%20Density%20Variations%20of%20Legume%20Trees.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.3390/f10020080 10.3390/f10020080 info:eu-repo/semantics/altIdentifier/doi/10.3390/f10020080 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.3390/f10020080 |
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K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes Fabaceae arbre forêt tropicale ombrage accroissement du diamètre bois de coeur bois de réaction densité du bois http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_34812 http://aims.fao.org/aos/agrovoc/c_3518 http://aims.fao.org/aos/agrovoc/c_24890 http://aims.fao.org/aos/agrovoc/c_24549 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes Fabaceae arbre forêt tropicale ombrage accroissement du diamètre bois de coeur bois de réaction densité du bois http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_34812 http://aims.fao.org/aos/agrovoc/c_3518 http://aims.fao.org/aos/agrovoc/c_24890 http://aims.fao.org/aos/agrovoc/c_24549 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
spellingShingle |
K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes Fabaceae arbre forêt tropicale ombrage accroissement du diamètre bois de coeur bois de réaction densité du bois http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_34812 http://aims.fao.org/aos/agrovoc/c_3518 http://aims.fao.org/aos/agrovoc/c_24890 http://aims.fao.org/aos/agrovoc/c_24549 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes Fabaceae arbre forêt tropicale ombrage accroissement du diamètre bois de coeur bois de réaction densité du bois http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_34812 http://aims.fao.org/aos/agrovoc/c_3518 http://aims.fao.org/aos/agrovoc/c_24890 http://aims.fao.org/aos/agrovoc/c_24549 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Lehnebach, Romain Bossu, Julie Va, Stéphanie Morel, Hélène Amusant, Nadine Nicolini, Eric-André Beauchêne, Jacques Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients |
description |
Increasing or decreasing wood density (WD) from pith to bark is commonly observed in tropical tree species. The different types of WD radial variations, long been considered to depict the diversity of growth and mechanical strategies among forest guilds (heliophilic vs. shade-tolerant), were never analyzed in the light of heartwood (HW) formation. Yet, the additional mass of chemical extractives associated to HW formation increases WD and might affect both WD radial gradient (i.e., the slope of the relation between WD and radial distance) and pattern (i.e., linear or nonlinear variation). We studied 16 legumes species from French Guiana representing a wide diversity of growth strategies and positions on the shade-tolerance continuum. Using WD measurements and available HW extractives content values, we computed WD corrected by the extractive content and analyzed the effect of HW on WD radial gradients and patterns. We also related WD variations to demographic variables, such as sapling growth and mortality rates. Regardless of the position along the shade-tolerance continuum, correcting WD gradients reveals only increasing gradients. We determined three types of corrected WD patterns: (1) the upward curvilinear pattern is a specific feature of heliophilic species, whereas (2) the linear and (3) the downward curvilinear patterns are observed in both mid- and late-successional species. In addition, we found that saplings growth and mortality rates are better correlated with the corrected WD at stem center than with the uncorrected value: taking into account the effect of HW extractives on WD radial variations provides unbiased interpretation of biomass accumulation and tree mechanical strategies. Rather than a specific feature of heliophilic species, the increasing WD gradient is a shared strategy regardless of the shade tolerance habit. Finally, our study stresses to consider the occurrence of HW when using WD. |
format |
article |
topic_facet |
K10 - Production forestière F62 - Physiologie végétale - Croissance et développement F50 - Anatomie et morphologie des plantes Fabaceae arbre forêt tropicale ombrage accroissement du diamètre bois de coeur bois de réaction densité du bois http://aims.fao.org/aos/agrovoc/c_4256 http://aims.fao.org/aos/agrovoc/c_7887 http://aims.fao.org/aos/agrovoc/c_24904 http://aims.fao.org/aos/agrovoc/c_7020 http://aims.fao.org/aos/agrovoc/c_34812 http://aims.fao.org/aos/agrovoc/c_3518 http://aims.fao.org/aos/agrovoc/c_24890 http://aims.fao.org/aos/agrovoc/c_24549 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Lehnebach, Romain Bossu, Julie Va, Stéphanie Morel, Hélène Amusant, Nadine Nicolini, Eric-André Beauchêne, Jacques |
author_facet |
Lehnebach, Romain Bossu, Julie Va, Stéphanie Morel, Hélène Amusant, Nadine Nicolini, Eric-André Beauchêne, Jacques |
author_sort |
Lehnebach, Romain |
title |
Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients |
title_short |
Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients |
title_full |
Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients |
title_fullStr |
Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients |
title_full_unstemmed |
Wood density variations of legume trees in French Guiana along the shade tolerance continuum: Heartwood effects on radial patterns and gradients |
title_sort |
wood density variations of legume trees in french guiana along the shade tolerance continuum: heartwood effects on radial patterns and gradients |
url |
http://agritrop.cirad.fr/598726/ http://agritrop.cirad.fr/598726/1/2019%20Wood%20Density%20Variations%20of%20Legume%20Trees.pdf |
work_keys_str_mv |
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