Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements
Longitudinal surface strain was measured or estimated using three different methods along the stems of nine trees of 10-year-old Eucalyptus globulus Labill. Wood samples were collected close to the location where the strain was measured or estimated. Microfibril angle (MFA), cellulose crystallite width (Wcryst), microdensity and Young's modulus along the grain (EL) were determined using the SilviScan-2 technology at high spatial resolution. Relationships of measured strain and estimated strain to wood properties were established. The quality of the relationships depends on a particular wood property. Strain was more closely related to mean Wcryst than to any other wood properties. Its relationship with MFA was the next closest. Based on the results of regression analysis, we propose that Wcryst may be suitable for the prediction of surface strain at a moderate level of reliability. Adding measurement of MFA, microdensity and EL does not significantly improve the prediction quality. The strain measurement method also affects the results. The best relationships were obtained with longitudinal displacement measured by the CIRAD method. Strain measured by the strain gauge method gave weak relationships, possibly owing to variation in the cambium age of the specimens.
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Subjects: | K50 - Technologie des produits forestiers, F62 - Physiologie végétale - Croissance et développement, Eucalyptus globulus, propriété physicochimique, mesure (activité), bois, http://aims.fao.org/aos/agrovoc/c_2692, http://aims.fao.org/aos/agrovoc/c_1521, http://aims.fao.org/aos/agrovoc/c_4668, http://aims.fao.org/aos/agrovoc/c_8421, |
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dig-cirad-fr-5452832024-01-28T16:05:51Z http://agritrop.cirad.fr/545283/ http://agritrop.cirad.fr/545283/ Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements. Jun Li Yang, Baillères Henri, Evans Robert, Downes G.. 2006. Holzforschung, 60 (5) : 574-579.https://doi.org/10.1515/HF.2006.095 <https://doi.org/10.1515/HF.2006.095> Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements Jun Li Yang, Baillères, Henri Evans, Robert Downes, G. eng 2006 Holzforschung K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement Eucalyptus globulus propriété physicochimique mesure (activité) bois http://aims.fao.org/aos/agrovoc/c_2692 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_8421 Longitudinal surface strain was measured or estimated using three different methods along the stems of nine trees of 10-year-old Eucalyptus globulus Labill. Wood samples were collected close to the location where the strain was measured or estimated. Microfibril angle (MFA), cellulose crystallite width (Wcryst), microdensity and Young's modulus along the grain (EL) were determined using the SilviScan-2 technology at high spatial resolution. Relationships of measured strain and estimated strain to wood properties were established. The quality of the relationships depends on a particular wood property. Strain was more closely related to mean Wcryst than to any other wood properties. Its relationship with MFA was the next closest. Based on the results of regression analysis, we propose that Wcryst may be suitable for the prediction of surface strain at a moderate level of reliability. Adding measurement of MFA, microdensity and EL does not significantly improve the prediction quality. The strain measurement method also affects the results. The best relationships were obtained with longitudinal displacement measured by the CIRAD method. Strain measured by the strain gauge method gave weak relationships, possibly owing to variation in the cambium age of the specimens. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/545283/1/545283.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1515/HF.2006.095 10.1515/HF.2006.095 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=200968 info:eu-repo/semantics/altIdentifier/doi/10.1515/HF.2006.095 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1515/HF.2006.095 |
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K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement Eucalyptus globulus propriété physicochimique mesure (activité) bois http://aims.fao.org/aos/agrovoc/c_2692 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_8421 K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement Eucalyptus globulus propriété physicochimique mesure (activité) bois http://aims.fao.org/aos/agrovoc/c_2692 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_8421 |
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K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement Eucalyptus globulus propriété physicochimique mesure (activité) bois http://aims.fao.org/aos/agrovoc/c_2692 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_8421 K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement Eucalyptus globulus propriété physicochimique mesure (activité) bois http://aims.fao.org/aos/agrovoc/c_2692 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_8421 Jun Li Yang, Baillères, Henri Evans, Robert Downes, G. Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements |
description |
Longitudinal surface strain was measured or estimated using three different methods along the stems of nine trees of 10-year-old Eucalyptus globulus Labill. Wood samples were collected close to the location where the strain was measured or estimated. Microfibril angle (MFA), cellulose crystallite width (Wcryst), microdensity and Young's modulus along the grain (EL) were determined using the SilviScan-2 technology at high spatial resolution. Relationships of measured strain and estimated strain to wood properties were established. The quality of the relationships depends on a particular wood property. Strain was more closely related to mean Wcryst than to any other wood properties. Its relationship with MFA was the next closest. Based on the results of regression analysis, we propose that Wcryst may be suitable for the prediction of surface strain at a moderate level of reliability. Adding measurement of MFA, microdensity and EL does not significantly improve the prediction quality. The strain measurement method also affects the results. The best relationships were obtained with longitudinal displacement measured by the CIRAD method. Strain measured by the strain gauge method gave weak relationships, possibly owing to variation in the cambium age of the specimens. |
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article |
topic_facet |
K50 - Technologie des produits forestiers F62 - Physiologie végétale - Croissance et développement Eucalyptus globulus propriété physicochimique mesure (activité) bois http://aims.fao.org/aos/agrovoc/c_2692 http://aims.fao.org/aos/agrovoc/c_1521 http://aims.fao.org/aos/agrovoc/c_4668 http://aims.fao.org/aos/agrovoc/c_8421 |
author |
Jun Li Yang, Baillères, Henri Evans, Robert Downes, G. |
author_facet |
Jun Li Yang, Baillères, Henri Evans, Robert Downes, G. |
author_sort |
Jun Li Yang, |
title |
Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements |
title_short |
Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements |
title_full |
Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements |
title_fullStr |
Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements |
title_full_unstemmed |
Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements |
title_sort |
evaluating growth strain of eucalyptus globulus labill. from silviscan measurements |
url |
http://agritrop.cirad.fr/545283/ http://agritrop.cirad.fr/545283/1/545283.pdf |
work_keys_str_mv |
AT junliyang evaluatinggrowthstrainofeucalyptusglobuluslabillfromsilviscanmeasurements AT baillereshenri evaluatinggrowthstrainofeucalyptusglobuluslabillfromsilviscanmeasurements AT evansrobert evaluatinggrowthstrainofeucalyptusglobuluslabillfromsilviscanmeasurements AT downesg evaluatinggrowthstrainofeucalyptusglobuluslabillfromsilviscanmeasurements |
_version_ |
1792496925852827648 |