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<identifier>oai:HAL:hal-01032059v1</identifier>
<datestamp>2018-01-11</datestamp>
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<title lang=en>How to determine sapling buckling risk with only a few measurements</title>
<creator>Jaouen, Gaëlle</creator>
<creator>Almeras, Tancrede</creator>
<creator>Coutand, Catherine</creator>
<creator>Fournier, Meriem</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Laboratoire de Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier (PIAF) ; Institut National de la Recherche Agronomique (INRA) - Université Blaise Pascal - Clermont-Ferrand 2 (UBP)</contributor>
<contributor>Laboratoire d'Etudes des Ressources Forêt-Bois (LERFoB) ; Institut National de la Recherche Agronomique (INRA) - AgroParisTech</contributor>
<description> </description>
<source>ISSN: 0002-9122</source>
<source>American Journal of Botany</source>
<publisher>Botanical Society of America</publisher>
<identifier>hal-01032059</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032059</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01032059</source>
<source>American Journal of Botany, Botanical Society of America, 2007, 94 (10), pp.1583-1593</source>
<language>en</language>
<subject lang=en>BIOMECHANICS</subject>
<subject lang=en>CRITICAL BUCKLING HEIGHT</subject>
<subject lang=en>FRENCH GUIANA</subject>
<subject lang=en>RISK FACTOR</subject>
<subject lang=en>SAPLING</subject>
<subject lang=en>STEM FORM</subject>
<subject lang=en>TROPICAL RAIN FOREST</subject>
<subject lang=en>TRUNK VOLUME</subject>
<subject lang=en>BIOMECANIQUE</subject>
<subject>[SDV.BV.BOT] Life Sciences [q-bio]/Vegetal Biology/Botanics</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Tree buckling risk (actual height/critical buckling height) is an important biomechanical trait of plant growth strategies, and one that contributes to species coexistence. To estimate the diversity of this trait among wide samples, a method that minimizes damage to the plants is necessary. On the basis of the rarely used, complete version of Greenhill's model (1881, Proceedings of the Cambridge Philosophical Society 4(2): 65-73), we precisely measured all the necessary parameters on a sample of 236 saplings of 16 species. Then, using sensitivity (variance) analysis, regressions between successive models for risk factors and species ranks and the use of these models on samples of self- and nonself-supporting saplings, we tested different degrees of simplification up to the most simple and widely used formula that assumes that the tree is a cylindrical homogeneous pole. The size factor had the greatest effect on buckling risk, followed by the form factor and the modulus of elasticity of the wood. Therefore, estimates of buckling risk must consider not only the wood properties but especially the form factor. Finally, we proposed a simple but accurate method of assessing tree buckling risk that is applicable to a wide range of samples and that requires mostly nondestructive measurements.</description>
<date>2007</date>
</dc>
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