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Ring Width Patterns of Douglas Fir in Relation to Crown Vitality and Age

Ring Width Patterns of Douglas Fir in Relation to Crown Vitality and Age Ring width patterns often different stands, five vitality classes and three age-classes are used to explore the effect of the decline in vitality on radial growth of Douglas fir in the Netherlands and to determine the onset of this decline. A relationship between growth performance and crown vitality is found in most stands, although the variation within and between stands is large. Severe needle loss leads to serious decline in ring width. The onset of the decline varies from c. 1959 to 1976. The present data set does not enable a choice between the various causal scenarios of forest decline that have been proposed in the literature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png IAWA Journal Brill

Ring Width Patterns of Douglas Fir in Relation to Crown Vitality and Age

IAWA Journal , Volume 18 (1): 15 – Jan 1, 1997

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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0928-1541
eISSN
2294-1932
DOI
10.1163/22941932-90001460
Publisher site
See Article on Publisher Site

Abstract

Ring width patterns often different stands, five vitality classes and three age-classes are used to explore the effect of the decline in vitality on radial growth of Douglas fir in the Netherlands and to determine the onset of this decline. A relationship between growth performance and crown vitality is found in most stands, although the variation within and between stands is large. Severe needle loss leads to serious decline in ring width. The onset of the decline varies from c. 1959 to 1976. The present data set does not enable a choice between the various causal scenarios of forest decline that have been proposed in the literature.

Journal

IAWA JournalBrill

Published: Jan 1, 1997

Keywords: Pseudotsuga menziesii ; Douglas fir; ring width; forest decline; vitality classes; growth reductions; age

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