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Fitosociologia numero 41 (2)

pag. 31-49: La vegetazione alofila della laguna di Orbetello (Toscana, Grosseto)

F. Andreucci

Dipartimento di Scienze Ambientali e della Vita, Università del Piemonte Orientale “A. Avogadro”, via Bellini 25/G, I – 15100 Alessandria; e-mail: flora.andreucci@unipmn.it

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abstract

The halophile vegetation of the Orbetello Lagoon (Tuscany, Grosseto). This study describes the alophile vegetation of the Orbetello Lagoon (Tuscany, central Thyrrhenian district, Italy) carried out by the phytosociologic method. Seventeen plant associations have been identified, belonging to the following classes: Cakiletea maritimae, Saginetea maritimae, Juncetea maritimi, Sarcocornietea fruticosae, Thero-Salicornietea. The dendrogram of the vegetation and the scattergrams of the perennial and iperhaline associations obtained with the cluster analysis are shown. The syntaxonomic scheme of the different vegetational units observed and some transects of their distribution, which describe the catenal relations between the different coenosis and their distribution within salinity and flooding, are presented.

keywords

halophile vegetation, Italy, Orbetello Lagoon, phytosociology, syntaxonomy, Tyrrhenian coastline