Publication
Title
Variability of stomatal conductance, leaf anatomy, and seasonal leaf wettability of young and adult European beech leaves along a vertical canopy gradient
Author
Abstract
This study assessed the variation of leaf anatomy, chlorophyll content index (CCI), maximal stomatal conductance (g (s) (max) ) and leaf wettability within the canopy of an adult European beech tree (Fagus sylvatica L.) and for beech saplings placed along the vertical gradient in the canopy. At the top canopy level (CL28m) of the adult beech, CCI and leaf anatomy reflected higher light stress, while g (s) (max) increased with height, reflecting the importance of gas exchange in the upper canopy layer. Leaf wettability, measured as drop contact angle, decreased from 85.5A degrees A A +/- A 1.6A degrees (summer) to 57.5A degrees A A +/- A 2.8A degrees (autumn) at CL28m of the adult tree. At CL22m, adult beech leaves seemed to be better optimized for photosynthesis than the CL28m leaves because of a large leaf thickness with less protective and impregnated substances, and a higher CCI. The beech saplings, in contrast, did not adapt their stomatal characteristics and leaf anatomy according to the same strategy as the adult beech leaves. Consequently, care is needed when scaling up experimental results from seedlings to adult trees.
Language
English
Source (journal)
Trees: structure and function. - Berlin
Publication
Berlin : 2012
ISSN
0931-1890
Volume/pages
26:5(2012), p. 1427-1438
ISI
000308860500002
Full text (Publisher's DOI)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
[E?say:metaLocaldata.cgzprojectinf]
Biomonitoring of the urban habitat quality using hyperspectral aircraft observations (BIOHYPE).
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 22.11.2012
Last edited 07.08.2017
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