The influence of cellulose content on tensile strength in tree roots
Root tensile strength is an important factor to consider when choosing suitable species for reinforcing soil on unstable slopes. Tensile strength has been found to increase with decreasing root diameter, however, it is not known how this phenomenon occurs. We carried out tensile tests on roots 0.2¿12.0 mm in diameter of three conifer and two broadleaf species, in order to determine the relationship between tensile strength and diameter. Two species, Pinus pinaster Ait. and Castanea sativa Mill., were then chosen for a quantitative analysis of root cellulose content. Cellulose is responsible for tensile strength in wood due to its microfibrillar structure. Results showed that in all species, a significant power relationship existed between tensile strength and root diameter, with a sharp increase of tensile strength in roots with a diameter <0.9 mm. In roots >1.0 mm, Fagus sylvatica L. was the most resistant to failure, followed by Picea abies L. and C. sativa., P. pinaster and Pinus nigra Arnold roots were the least resistant in tension for the same diameter class. Extremely high values of strength (132-201 MPa) were found in P. abies, C. sativa and P. pinaster, for the smallest roots (0.4 mm in diameter). The power relationship between tensile strength and root diameter cannot only be explained by a scaling effect typical of that found in fracture mechanics. Therefore, this relationship could be due to changes in cellulose content as the percentage of cellulose was also observed to increase with decreasing root diameter and increasing tensile strength in both P. pinaster and C. sativa.
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Subjects: | F60 - Physiologie et biochimie végétale, K10 - Production forestière, P36 - Érosion, conservation et récupération des sols, Castanea sativa, Pinus pinaster, cellulose, racine, résistance mécanique, diamètre, terre en pente, http://aims.fao.org/aos/agrovoc/c_1371, http://aims.fao.org/aos/agrovoc/c_5904, http://aims.fao.org/aos/agrovoc/c_1423, http://aims.fao.org/aos/agrovoc/c_6651, http://aims.fao.org/aos/agrovoc/c_7445, http://aims.fao.org/aos/agrovoc/c_16072, http://aims.fao.org/aos/agrovoc/c_7109, |
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dig-cirad-fr-5309002024-01-28T14:18:39Z http://agritrop.cirad.fr/530900/ http://agritrop.cirad.fr/530900/ The influence of cellulose content on tensile strength in tree roots. Genet Marie, Stokes Alexia, Salin Franck, Mickovski Slobodan B., Fourcaud Thierry, Dumail Jean-François, Van Beek Rens. 2005. Plant and Soil, 278 (1-2) : 1-9.https://doi.org/10.1007/s11104-005-8768-6 <https://doi.org/10.1007/s11104-005-8768-6> The influence of cellulose content on tensile strength in tree roots Genet, Marie Stokes, Alexia Salin, Franck Mickovski, Slobodan B. Fourcaud, Thierry Dumail, Jean-François Van Beek, Rens eng 2005 Plant and Soil F60 - Physiologie et biochimie végétale K10 - Production forestière P36 - Érosion, conservation et récupération des sols Castanea sativa Pinus pinaster cellulose racine résistance mécanique diamètre terre en pente http://aims.fao.org/aos/agrovoc/c_1371 http://aims.fao.org/aos/agrovoc/c_5904 http://aims.fao.org/aos/agrovoc/c_1423 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_7445 http://aims.fao.org/aos/agrovoc/c_16072 http://aims.fao.org/aos/agrovoc/c_7109 Root tensile strength is an important factor to consider when choosing suitable species for reinforcing soil on unstable slopes. Tensile strength has been found to increase with decreasing root diameter, however, it is not known how this phenomenon occurs. We carried out tensile tests on roots 0.2¿12.0 mm in diameter of three conifer and two broadleaf species, in order to determine the relationship between tensile strength and diameter. Two species, Pinus pinaster Ait. and Castanea sativa Mill., were then chosen for a quantitative analysis of root cellulose content. Cellulose is responsible for tensile strength in wood due to its microfibrillar structure. Results showed that in all species, a significant power relationship existed between tensile strength and root diameter, with a sharp increase of tensile strength in roots with a diameter <0.9 mm. In roots >1.0 mm, Fagus sylvatica L. was the most resistant to failure, followed by Picea abies L. and C. sativa., P. pinaster and Pinus nigra Arnold roots were the least resistant in tension for the same diameter class. Extremely high values of strength (132-201 MPa) were found in P. abies, C. sativa and P. pinaster, for the smallest roots (0.4 mm in diameter). The power relationship between tensile strength and root diameter cannot only be explained by a scaling effect typical of that found in fracture mechanics. Therefore, this relationship could be due to changes in cellulose content as the percentage of cellulose was also observed to increase with decreasing root diameter and increasing tensile strength in both P. pinaster and C. sativa. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/530900/1/document_530900.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s11104-005-8768-6 10.1007/s11104-005-8768-6 info:eu-repo/semantics/altIdentifier/doi/10.1007/s11104-005-8768-6 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s11104-005-8768-6 |
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F60 - Physiologie et biochimie végétale K10 - Production forestière P36 - Érosion, conservation et récupération des sols Castanea sativa Pinus pinaster cellulose racine résistance mécanique diamètre terre en pente http://aims.fao.org/aos/agrovoc/c_1371 http://aims.fao.org/aos/agrovoc/c_5904 http://aims.fao.org/aos/agrovoc/c_1423 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_7445 http://aims.fao.org/aos/agrovoc/c_16072 http://aims.fao.org/aos/agrovoc/c_7109 F60 - Physiologie et biochimie végétale K10 - Production forestière P36 - Érosion, conservation et récupération des sols Castanea sativa Pinus pinaster cellulose racine résistance mécanique diamètre terre en pente http://aims.fao.org/aos/agrovoc/c_1371 http://aims.fao.org/aos/agrovoc/c_5904 http://aims.fao.org/aos/agrovoc/c_1423 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_7445 http://aims.fao.org/aos/agrovoc/c_16072 http://aims.fao.org/aos/agrovoc/c_7109 |
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F60 - Physiologie et biochimie végétale K10 - Production forestière P36 - Érosion, conservation et récupération des sols Castanea sativa Pinus pinaster cellulose racine résistance mécanique diamètre terre en pente http://aims.fao.org/aos/agrovoc/c_1371 http://aims.fao.org/aos/agrovoc/c_5904 http://aims.fao.org/aos/agrovoc/c_1423 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_7445 http://aims.fao.org/aos/agrovoc/c_16072 http://aims.fao.org/aos/agrovoc/c_7109 F60 - Physiologie et biochimie végétale K10 - Production forestière P36 - Érosion, conservation et récupération des sols Castanea sativa Pinus pinaster cellulose racine résistance mécanique diamètre terre en pente http://aims.fao.org/aos/agrovoc/c_1371 http://aims.fao.org/aos/agrovoc/c_5904 http://aims.fao.org/aos/agrovoc/c_1423 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_7445 http://aims.fao.org/aos/agrovoc/c_16072 http://aims.fao.org/aos/agrovoc/c_7109 Genet, Marie Stokes, Alexia Salin, Franck Mickovski, Slobodan B. Fourcaud, Thierry Dumail, Jean-François Van Beek, Rens The influence of cellulose content on tensile strength in tree roots |
description |
Root tensile strength is an important factor to consider when choosing suitable species for reinforcing soil on unstable slopes. Tensile strength has been found to increase with decreasing root diameter, however, it is not known how this phenomenon occurs. We carried out tensile tests on roots 0.2¿12.0 mm in diameter of three conifer and two broadleaf species, in order to determine the relationship between tensile strength and diameter. Two species, Pinus pinaster Ait. and Castanea sativa Mill., were then chosen for a quantitative analysis of root cellulose content. Cellulose is responsible for tensile strength in wood due to its microfibrillar structure. Results showed that in all species, a significant power relationship existed between tensile strength and root diameter, with a sharp increase of tensile strength in roots with a diameter <0.9 mm. In roots >1.0 mm, Fagus sylvatica L. was the most resistant to failure, followed by Picea abies L. and C. sativa., P. pinaster and Pinus nigra Arnold roots were the least resistant in tension for the same diameter class. Extremely high values of strength (132-201 MPa) were found in P. abies, C. sativa and P. pinaster, for the smallest roots (0.4 mm in diameter). The power relationship between tensile strength and root diameter cannot only be explained by a scaling effect typical of that found in fracture mechanics. Therefore, this relationship could be due to changes in cellulose content as the percentage of cellulose was also observed to increase with decreasing root diameter and increasing tensile strength in both P. pinaster and C. sativa. |
format |
article |
topic_facet |
F60 - Physiologie et biochimie végétale K10 - Production forestière P36 - Érosion, conservation et récupération des sols Castanea sativa Pinus pinaster cellulose racine résistance mécanique diamètre terre en pente http://aims.fao.org/aos/agrovoc/c_1371 http://aims.fao.org/aos/agrovoc/c_5904 http://aims.fao.org/aos/agrovoc/c_1423 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_7445 http://aims.fao.org/aos/agrovoc/c_16072 http://aims.fao.org/aos/agrovoc/c_7109 |
author |
Genet, Marie Stokes, Alexia Salin, Franck Mickovski, Slobodan B. Fourcaud, Thierry Dumail, Jean-François Van Beek, Rens |
author_facet |
Genet, Marie Stokes, Alexia Salin, Franck Mickovski, Slobodan B. Fourcaud, Thierry Dumail, Jean-François Van Beek, Rens |
author_sort |
Genet, Marie |
title |
The influence of cellulose content on tensile strength in tree roots |
title_short |
The influence of cellulose content on tensile strength in tree roots |
title_full |
The influence of cellulose content on tensile strength in tree roots |
title_fullStr |
The influence of cellulose content on tensile strength in tree roots |
title_full_unstemmed |
The influence of cellulose content on tensile strength in tree roots |
title_sort |
influence of cellulose content on tensile strength in tree roots |
url |
http://agritrop.cirad.fr/530900/ http://agritrop.cirad.fr/530900/1/document_530900.pdf |
work_keys_str_mv |
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