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| Titre : |
Biomechanical and hydraulic determinants of tree structure in scots pine : anatomical characteristics
|
| Titre de série : | Tree Physiology, Vol 17 |
| Auteur(s) : |
M. Mencuccini, Auteur (et co-auteur)
J. Grace, Auteur (et co-auteur) M. Fioravanti, Auteur (et co-auteur) |
| Type de document : | Tiré à part |
| Sujets : | Pinus sylvestris |
| Résumé : |
The development of anatomical, hydraulic and biomechanical properties in Scots pine (Pinus syslvestris L.) stems aged 7 to 59 years was followed. The hydraulic diameter and lenght of tracheids increased with age to a maximum at 15 and 35 years, respectively. Number of tracheids per unit of sapwood area decreased with age to a minimum of 500-600 tracheids mm-2. Variations in specific hydraulic conductivity and Young's modulus of stems were associated with variation in anatomical properties. Over the time sequence considered, hydraulic and mechanical properties were positively related to each other and followed a similar developmental pattern, with no suggestion of a trade-off between the two. For most of the tree's life-cycle, heartwood made only a small contribution to whole-section m[...] The development of anatomical, hydraulic and biomechanical properties in Scots pine (Pinus syslvestris L.) stems aged 7 to 59 years was followed. The hydraulic diameter and lenght of tracheids increased with age to a maximum at 15 and 35 years, respectively. Number of tracheids per unit of sapwood area decreased with age to a minimum of 500-600 tracheids mm-2. Variations in specific hydraulic conductivity and Young's modulus of stems were associated with variation in anatomical properties. Over the time sequence considered, hydraulic and mechanical properties were positively related to each other and followed a similar developmental pattern, with no suggestion of a trade-off between the two. For most of the tree's life-cycle, heartwood made only a small contribution to whole-section mechanical stiffness because of its location close to the flextural neutral axis, and because of the presence of juvenile wood. |
| Date de publication : | 1997 |
| Format : | pp. 105-113 / graph., tabl., réf. |
| Langue(s) : | Anglais |
| Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=149695 |
Exemplaires (1)
| Localisation | Emplacement | Pôle | Section | Cote | Support | Disponibilité |
|---|---|---|---|---|---|---|
| Kourou | Archives | AgroParisTech-Kourou | TP6681 (E) | Papier Périodique | Empruntable Disponible |