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Dengler, J; Rahmlow, M; Lampe, P,: Database Polygono-Poetea annuae of Germany. – In: Dengler, J., Oldeland, J., Jansen, F., Chytrý, M., Ewald, J., Finckh, M., Glöckler, F., Lopez-Gonzalez, G., Peet, R.K., Schaminée, J.H.J. [Eds.]: Vegetation databases for the 21st century. in University of Hamburg: Biodiversity & Ecology, 4, 347–347 (2012), doi:10.7809/b-e.00138
Key words: bryophyte; Hamburg; hemerobic; Lüneburg; plant community; soil data; standardisation; trampling; vascular plant; vegetation plot
Abstract:
The Database Polygono-Poetea annuae of Germany (GIVD ID EU-DE-004) aims to compile the available published and unpublished vegetation-plot data of this vegetation class in Germany. The class Polygono-Poetea comprises communities of eu- hemerobic habitats where trampling or driving is largely preventing the survival of perennial vascular plants. As a consequence, the vegetation is dominated by low-growing annual vascular plants and/or acrocarpous mosses. The core of our database are standardised relevés of 4-m2 plots covering the full variety of Polygono-Poetea in the northern German municipalities of Hamburg and Lüneburg (n = 143). Unlike most of the literature data, we used a uniform plot size (4 m2), sampled non-vascular plants comprehensively, and measured various soil and other relevant environmental parameters. These core data are complemented by digitised relevés from published and unpublished sources (presently n = 441). While the available data from Mecklenburg-Vorpommern are already largely included, the coverage of other federal states is only partial. The dataset is available to the scientific public based upon individual agreements.
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