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Books : Shoot growth of mature Fagus sylvatica and Picea abies in relation to ozone [An article from: Environmental Pollution]


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by: S. Braun, C. Schindler, B. Rihm, W. Fluckiger

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Binding: Digital
Format: HTML
Label: Elsevier
Manufacturer: Elsevier
Publication Date: April 01, 2007
Publisher: Elsevier
Studio: Elsevier






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Product Description:
This digital document is a journal article from Environmental Pollution, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Epidemiological analysis of sequential growth data may be a tool in assessing ozone sensitivity of mature trees. Annual shoot growth of mature Fagus sylvatica in 83 Swiss permanent forest observation plots and of Picea abies in 61 plots was evaluated for 11 and 8 consecutive years, respectively, using branches harvested every 4years. The data were assessed as annual deviation from average growth and related to fructification, ozone, meteorological parameters, and modelled soil water content using a mixed linear model. In beech, a significant association between ozone and shoot growth was observed which corresponded to a 7.4% growth reduction between 0 and 10ppm h AOT40 (accumulated ozone over threshold 40). This is in the same order of magnitude as the response observed in experiments with seedlings. No interaction was found between ozone and drought parameters. In Norway spruce, shoot growth was neither associated with ozone nor with drought.








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