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    Growth Reactions of Sub-Alpine Norway Spruce (Picea Abies (L.) Karst) Following One-Sided Light Exposure (Case Study at Davos "Lusiwald")

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    Author
    Bräker, Otto U.
    Baumann, Ernst
    Affiliation
    Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
    Issue Date
    2006
    Keywords
    Dendrochronology
    Tree Rings
    Radial Increment
    Forest Openings
    Forest Gaps
    Growth Release
    Picea Abies
    Switzerland
    Davos
    
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    Citation
    Bräker, O.U., Baumann, E. 2006. Growth reactions of sub-alpine Norway spruce (Picea abies (L.) Karst) following one-sided light exposure (case study at Davos "Lusiwald"). Tree-Ring Research 62(2):67-73.
    Publisher
    Tree-Ring Society
    Journal
    Tree-Ring Research
    URI
    http://hdl.handle.net/10150/262646
    Additional Links
    http://www.treeringsociety.org
    Abstract
    In 1982, several rectangular openings were cut in a 100 year old sub-alpine Norway spruce forest stand to initiate regeneration at the Lusiwald site at Davos, Switzerland. The openings on the steep, north-facing slope created rapid changes to the environment of the border trees. Growth reactions of these border trees were compared and analysed with reference trees from the adjacent closed canopy stand in 1997. The radial growth pattern of the two data sets differed within the 14-year period since the openings were cut; the border trees showed growth releases. The growth reaction at the stem base was larger than at breast height. Changes in wind exposure may have influenced border trees to adapt their root systems. Sub-alpine Norway spruce stands aged around 100 years, which are usually considered slow-growing on a north aspect, still seem capable of reacting to greater resource availability such as sudden light changes.
    Type
    Article
    Language
    en_US
    ISSN
    2162-4585
    1536-1098
    Collections
    Tree-Ring Research, Vol. 62, No. 2 (2006)

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