Vegetation patterns and nutrient status of two mixed mires in the southern Alps

Vegetation patterns and nutrient status of two mixed mires in the southern Alps Abstract. Two mixed‐mire complexes in the southern Alps (Italy) were analyzed for vegetation patterns and water and peat chemistry. Six vegetation units were distinguished, representing three phytosociological orders, the Sphagnetalia magellanici, Scheuchzerietalia palustris and Caricetalia fuscae. Boundaries between these units are sharp and marked by difference in calcium concentrations in mire water and pH values. Relatively high Ca concentrations (up to 150 |j.eq/l) were measured at ombrotrophic sites. They mirror similarly high concentrations in precipitation and are probably correlated with dry deposition of calcium‐rich particles. Phosphorous appears to be the main differentiating nutrient between the units; no significant differences are found for nitrogen. The vegetation is mainly characterized by the distributional pattern of Caricetalia fuscae species, being restricted to minerotrophic sites. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Vegetation Science Wiley

Vegetation patterns and nutrient status of two mixed mires in the southern Alps

Journal of Vegetation Science, Volume 1 (5) – Oct 1, 1990

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Publisher
Wiley
Copyright
1990 IAVS ‐ the International Association of Vegetation Science
ISSN
1100-9233
eISSN
1654-1103
DOI
10.2307/3235573
Publisher site
See Article on Publisher Site

Abstract

Abstract. Two mixed‐mire complexes in the southern Alps (Italy) were analyzed for vegetation patterns and water and peat chemistry. Six vegetation units were distinguished, representing three phytosociological orders, the Sphagnetalia magellanici, Scheuchzerietalia palustris and Caricetalia fuscae. Boundaries between these units are sharp and marked by difference in calcium concentrations in mire water and pH values. Relatively high Ca concentrations (up to 150 |j.eq/l) were measured at ombrotrophic sites. They mirror similarly high concentrations in precipitation and are probably correlated with dry deposition of calcium‐rich particles. Phosphorous appears to be the main differentiating nutrient between the units; no significant differences are found for nitrogen. The vegetation is mainly characterized by the distributional pattern of Caricetalia fuscae species, being restricted to minerotrophic sites.

Journal

Journal of Vegetation ScienceWiley

Published: Oct 1, 1990

References

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