Picea abies sapwood width: Variations within and between trees
| Autor: | Annikki Mäkelä, Frédéric Mothe, Jean-Michel Leban, Fleur Longuetaud |
|---|---|
| Přispěvatelé: | Laboratoire d'Etudes des Ressources Forêt-Bois (LERFoB), AgroParisTech-Institut National de la Recherche Agronomique (INRA), University of Helsinki |
| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
0106 biological sciences
SAPWOOD WIDTH 01 natural sciences Computed tomographic [SDV.SA.SF]Life Sciences [q-bio]/Agricultural sciences/Silviculture forestry Botany Mathematics ALLOMETRY 040101 forestry EPICEA COMMUN VARIATION INTER-ARBRES biology COMPUTER TOMOGRAPHY HEARTWOOD Crown (botany) NORWAY SPRUCE Forestry Picea abies 04 agricultural and veterinary sciences 15. Life on land biology.organism_classification VARIATION INTRA-ARBRE Horticulture 0401 agriculture forestry and fisheries Allometry WOOD ANATOMY 010606 plant biology & botany |
| Zdroj: | Scandinavian Journal of Forest Research Scandinavian Journal of Forest Research, Taylor & Francis, 2006, 21 (1), pp.41-53. ⟨10.1080/02827580500518632⟩ |
| ISSN: | 0282-7581 |
| DOI: | 10.1080/02827580500518632⟩ |
| Popis: | International audience; This study focused on the amount of sapwood and its variation by means of computed tomographic (CT) imaging. Twenty-four trees were selected from four Norway spruce [Picea abies (L.) Karst.] stands in north-eastern France, varying in age, density and fertility. In each stand, sampled trees represented the dominant, co-dominant and suppressed strata. The heartwood/sapwood boundary was detected from the CT images, and the heartwood and sapwood amount and their variations were then evaluated. At the within-tree level sapwood width was relatively constant along the tree stem above the butt swelling and below the living crown. The between-tree sapwood width variations were partially explained by the total cross-sectional area of living branches. This result opens up the possibility of investigating within-tree allometric relationships. Sapwood width was found to be highly correlated with tree slendemess (tree height/breast height diameter) and with the relative height of the crown. This suggests that sapwood width could be readily predicted from conventional forest inventory measurements. The number of sapwood rings within the stem was largely dependent on cambial age, and could be determined dynamically using the concept of mean lifetime of sapwood rings |
| Databáze: | OpenAIRE |
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