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    • Tree-Ring Research, Volume 66 (2010)
    • Tree-Ring Research, Volume 66, Issue 1 (Jan 2010)
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    Flooding Effects On Tree-Ring Formations Of Riparian Eastern White-Cedar (Thuja occidentalis L.), Northwestern Quebec, Canada

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    Author
    Denneler, Bernhard
    Bergeron, Yves
    Bégin, Yves
    Affiliation
    Département des sciences appliquées, Université du Québec en Abitibi-Témiscamingue
    Centre Eau, Terre et Environnement, Institut National de la Recherche Scientifique
    Issue Date
    2010-01
    Keywords
    Dendrochronology
    Tree Rings
    Dendrometer
    Flood
    Basal Area Increment
    Lake Duparquet
    Eastern White Cedar
    Tree Growth Phenology
    Water table
    
    Metadata
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    Rights
    Copyright © Tree-Ring Society. All rights reserved.
    Collection Information
    This item is part of the Tree-Ring Research (formerly Tree-Ring Bulletin) archive. For more information about this peer-reviewed scholarly journal, please email the Editor of Tree-Ring Research at editor@treeringsociety.org.
    Publisher
    Tree-Ring Society
    Journal
    Tree-Ring Research
    Citation
    Denneler, B., Bergeron, Y., Bégin, Y., 2010. Flooding effect on tree-ring formation of riparian eastern white-cedar (Thuja occidentalis L.), northwestern Quebec. Tree-Ring Research 66(1):3-17.
    Abstract
    Tree-ring formation of eastern white-cedar (Thuja occidentalis L.) at a boreal lake in northwestern Quebec, Canada, was monitored using manual band dendrometers to (i) retrace cambial activity phases, (ii) evaluate the effects of flooding on radial growth, and (iii) analyze the relationships with meteorological factors. The daily circumferential activity of four trees at each of two sites, a riparian and an upland site, was recorded during the growing season of 1996, a year with an extreme spring flood. First cambium cell divisions occurred near June 9, followed by a distinct and sustained upward trend in the stem basal area until mid-July that reflected the earlywood formation. The strongly synchronous circumferential activity at both sites suggests no adverse flooding effect on growth of the riparian trees, which is explained by the rapid retreat of the water just before growth initiation in early June. The following month until mid-August was characterized by strong short-term fluctuations caused by alternating drought and rain periods and a slight downward trend of the basal area for six of the eight banded white-cedars. The dendrometers of two trees, the closest to the lake, showed a slight upward trend probably reflecting latewood formation. Pearson correlation with meteorological data indicated that precipitation was positively related to the daily changes in basal area of all trees except during the period of earlywood formation, which probably resulted from the high soil moisture after spring snow-melting. Mean and minimum air humidity were positively related and maximum temperature negatively related to the daily variations in stem circumference during the whole monitoring period, emphasizing the importance of the internal water status on stem size.
    ISSN
    2162-4585
    1536-1098
    Additional Links
    http://www.treeringsociety.org
    Collections
    Tree-Ring Research, Volume 66, Issue 1 (Jan 2010)

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