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    Author(s): M. Lorenz; G. Becher; V. Mues; E. Ulrich
    Date: 2006
    Source: In: Aguirre-Bravo, C.; Pellicane, Patrick J.; Burns, Denver P.; and Draggan, Sidney, Eds. 2006. Monitoring Science and Technology Symposium: Unifying Knowledge for Sustainability in the Western Hemisphere Proceedings RMRS-P-42CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 18-25
    Publication Series: Proceedings (P)
    Station: Rocky Mountain Research Station
    PDF: View PDF  (2.5 MB)

    Description

    Forest condition in Europe has been monitored over 19 years jointly by the United Nations Economic Commission for Europe (UNECE) and the European Union (EU). Large-scale variations of forest condition over space and time in relation to natural and anthropogenic factors are assessed on about 6,000 plots systematically spread across Europe. This large-scale monitoring intensity is referred to as “Level I.” Causal relationships are studied in detail on about 860 intensive monitoring plots covering the most important forest ecosystems in Europe. This intensive monitoring is referred to as “Level II.” Crown condition shows a very high spatial and temporal variation which is explainable mainly by tree age, weather extremes, biotic factors, and air pollution. At open field stations close to Level II plots, results of wet deposition measurements indicate that sulfate and nitrate concentrations decreased from 1996 to 2001, whereas ammonium concentrations fluctuated during the same measuring period.

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    Citation

    Lorenz, M.; Becher, G.; Mues, V.; Ulrich, E. 2006. Monitoring Forest Condition in Europe: Impacts of Nitrogen and Sulfur Depositions on Forest Ecosystems. In: Aguirre-Bravo, C.; Pellicane, Patrick J.; Burns, Denver P.; and Draggan, Sidney, Eds. 2006. Monitoring Science and Technology Symposium: Unifying Knowledge for Sustainability in the Western Hemisphere Proceedings RMRS-P-42CD. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 18-25

    Keywords

    monitoring, assessment, sustainability, Western Hemisphere, sustainable management, ecosystem resources, Europe, nitrogen, sulfur

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