Crown structure and wood properties : influence on tree sway and response to high winds
Wind can alter plant growth and cause extensive, irreversible damage in forested areas. To hotter understand how to mitigate the effects of wind action, we investigated the sensitivity of tree aerodynamic behavior to the material and geometrical factors characterizing the aerial system. The mechanical response of a 35 yr-old maritime pine (Pinas /thoser. Pinaceae) submitted to static and dynamic wind loads is simulated with a finite element model. The branching structure is represented in three dimensions. Factor effects are evaluated using, a fractional experimental design. Results show that material properties play only a limited role in tree dynamics. In contrast, small morphological variations can produce extreme behaviors such as either very little or nearly critical dissipation of stem oscillations. Slender trees are shown to be relatively more vulnerable to stem breakage than uprooting. Dynamic loading, leads to deflections and forces up to 20% higher near the base of the tree than those calculated for a static loading of similar magnitude. Effects of branch geometry on dynamic amplification are substantial yet not linear. The flexibility of the aerial system is found to be critical to reducing the resistance to the airflow and thus to minimizing the risk of failure.
Main Authors: | , |
---|---|
Format: | article biblioteca |
Language: | eng |
Subjects: | F50 - Anatomie et morphologie des plantes, K50 - Technologie des produits forestiers, U10 - Informatique, mathématiques et statistiques, H50 - Troubles divers des plantes, Pinus pinaster, http://aims.fao.org/aos/agrovoc/c_5904, |
Online Access: | http://agritrop.cirad.fr/549781/ http://agritrop.cirad.fr/549781/1/document_549781.pdf |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cirad-fr-549781 |
---|---|
record_format |
koha |
spelling |
dig-cirad-fr-5497812022-04-21T07:39:45Z http://agritrop.cirad.fr/549781/ http://agritrop.cirad.fr/549781/ Crown structure and wood properties : influence on tree sway and response to high winds. Sellier Damien, Fourcaud Thierry. 2009. American Journal of Botany, 96 (5) : 885-896.https://doi.org/10.3732/ajb.0800226 <https://doi.org/10.3732/ajb.0800226> Researchers Crown structure and wood properties : influence on tree sway and response to high winds Sellier, Damien Fourcaud, Thierry eng 2009 American Journal of Botany F50 - Anatomie et morphologie des plantes K50 - Technologie des produits forestiers U10 - Informatique, mathématiques et statistiques H50 - Troubles divers des plantes Pinus pinaster http://aims.fao.org/aos/agrovoc/c_5904 Wind can alter plant growth and cause extensive, irreversible damage in forested areas. To hotter understand how to mitigate the effects of wind action, we investigated the sensitivity of tree aerodynamic behavior to the material and geometrical factors characterizing the aerial system. The mechanical response of a 35 yr-old maritime pine (Pinas /thoser. Pinaceae) submitted to static and dynamic wind loads is simulated with a finite element model. The branching structure is represented in three dimensions. Factor effects are evaluated using, a fractional experimental design. Results show that material properties play only a limited role in tree dynamics. In contrast, small morphological variations can produce extreme behaviors such as either very little or nearly critical dissipation of stem oscillations. Slender trees are shown to be relatively more vulnerable to stem breakage than uprooting. Dynamic loading, leads to deflections and forces up to 20% higher near the base of the tree than those calculated for a static loading of similar magnitude. Effects of branch geometry on dynamic amplification are substantial yet not linear. The flexibility of the aerial system is found to be critical to reducing the resistance to the airflow and thus to minimizing the risk of failure. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/549781/1/document_549781.pdf application/pdf Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.3732/ajb.0800226 10.3732/ajb.0800226 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=204467 info:eu-repo/semantics/altIdentifier/doi/10.3732/ajb.0800226 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.3732/ajb.0800226 |
institution |
CIRAD FR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cirad-fr |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CIRAD Francia |
language |
eng |
topic |
F50 - Anatomie et morphologie des plantes K50 - Technologie des produits forestiers U10 - Informatique, mathématiques et statistiques H50 - Troubles divers des plantes Pinus pinaster http://aims.fao.org/aos/agrovoc/c_5904 F50 - Anatomie et morphologie des plantes K50 - Technologie des produits forestiers U10 - Informatique, mathématiques et statistiques H50 - Troubles divers des plantes Pinus pinaster http://aims.fao.org/aos/agrovoc/c_5904 |
spellingShingle |
F50 - Anatomie et morphologie des plantes K50 - Technologie des produits forestiers U10 - Informatique, mathématiques et statistiques H50 - Troubles divers des plantes Pinus pinaster http://aims.fao.org/aos/agrovoc/c_5904 F50 - Anatomie et morphologie des plantes K50 - Technologie des produits forestiers U10 - Informatique, mathématiques et statistiques H50 - Troubles divers des plantes Pinus pinaster http://aims.fao.org/aos/agrovoc/c_5904 Sellier, Damien Fourcaud, Thierry Crown structure and wood properties : influence on tree sway and response to high winds |
description |
Wind can alter plant growth and cause extensive, irreversible damage in forested areas. To hotter understand how to mitigate the effects of wind action, we investigated the sensitivity of tree aerodynamic behavior to the material and geometrical factors characterizing the aerial system. The mechanical response of a 35 yr-old maritime pine (Pinas /thoser. Pinaceae) submitted to static and dynamic wind loads is simulated with a finite element model. The branching structure is represented in three dimensions. Factor effects are evaluated using, a fractional experimental design. Results show that material properties play only a limited role in tree dynamics. In contrast, small morphological variations can produce extreme behaviors such as either very little or nearly critical dissipation of stem oscillations. Slender trees are shown to be relatively more vulnerable to stem breakage than uprooting. Dynamic loading, leads to deflections and forces up to 20% higher near the base of the tree than those calculated for a static loading of similar magnitude. Effects of branch geometry on dynamic amplification are substantial yet not linear. The flexibility of the aerial system is found to be critical to reducing the resistance to the airflow and thus to minimizing the risk of failure. |
format |
article |
topic_facet |
F50 - Anatomie et morphologie des plantes K50 - Technologie des produits forestiers U10 - Informatique, mathématiques et statistiques H50 - Troubles divers des plantes Pinus pinaster http://aims.fao.org/aos/agrovoc/c_5904 |
author |
Sellier, Damien Fourcaud, Thierry |
author_facet |
Sellier, Damien Fourcaud, Thierry |
author_sort |
Sellier, Damien |
title |
Crown structure and wood properties : influence on tree sway and response to high winds |
title_short |
Crown structure and wood properties : influence on tree sway and response to high winds |
title_full |
Crown structure and wood properties : influence on tree sway and response to high winds |
title_fullStr |
Crown structure and wood properties : influence on tree sway and response to high winds |
title_full_unstemmed |
Crown structure and wood properties : influence on tree sway and response to high winds |
title_sort |
crown structure and wood properties : influence on tree sway and response to high winds |
url |
http://agritrop.cirad.fr/549781/ http://agritrop.cirad.fr/549781/1/document_549781.pdf |
work_keys_str_mv |
AT sellierdamien crownstructureandwoodpropertiesinfluenceontreeswayandresponsetohighwinds AT fourcaudthierry crownstructureandwoodpropertiesinfluenceontreeswayandresponsetohighwinds |
_version_ |
1758022056773943296 |