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Plant Sociology numero 50 (2)

pag. 57-77: Phytocoenotic diversity of the N-Adriatic coastal sand dunes – The herbaceous communities of the fixed dunes and the vegetation of the interdunal wetlands

G. Sburlino1, G. Buffa1, L. Filesi2, U. Gamper3, L. Ghirelli4

1Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University, Campo Celestia 2737b, I-30122 Venezia, Italy
2Department of Design and Planning in Complex Environments, University Iuav of Venice, Santa Croce 1957, Ca’ Tron, I-30135 Venezia, Italy
3Autonomous Province of Bolzano - Alto Adige, Office of Landscape Ecology, Via Renon 11, I-39100 Bolzano, Italy
4Via Roma 38, I-35020 Masera` di Padova, Italy

doi: 10.7338/pls2013502/04

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abstract

The hemicryptophytic, chamaephytic and therophytic communities which inhabit the fixed sand dunes of the N-Adriatic coast, along with those of the interdunal wetlands, have been studied from the phytosociological point of view. The floristic-sociological analysis focuses on the syntaxonomic discussion of the xerophilous communities; in this context, the following new syntaxa have been described: Syntrichio ruraliformis-Lomelosion argenteae, Tortulo-Scabiosetum typicum and Sileno conicae-Avellinietum michelii. In regards to the dune slack vegetation, the study points out the occurrence in the coastal area of two rare inland microtherm communities (Plantagini altissimae-Molinietum caeruleae and Erucastro-Schoenetum nigricantis). As already stated in previous papers, the originality of this sector of the Mediterranean basin is highlighted as a result of both bioclimatic and phytogeographic factors, which confer to this area a unique character in the European context.

keywords

biodiversity, N-Adriatic coast, phytosociology, sand dunes, syntaxonomy