Phytosociological study on Carex microcarpa Bertol. ex Moris communities in southern Sardinia (Italy). Results of a phytosociological study on Carex microcarpa Bertol. ex Moris communities in southern Sardinia (Italy), are herein presented. For the vegetation analysis ten phytosociological relevés, five soil profiles and a bioclimatic analysis on thermopluviometric stations present in Sulcis-Iglesiente and Sarrabus-Gerrei regions, were carried out. All data were elaborated and subsequently submitted to multivariate statistical analysis. This permitted to recognize two principal groups that correspond with to two different subassociations which are vicarious in relation to the substrate and its physical chemistry features. All relevés are referable to the Hyperico hircini-Caricetum microcarpae ass. nova. In particular those of the former group belong to the typical subassociation oenanthetosum crocatae subass. nova. and those of the second one to adiantetosum capilli-veneris subass. nova. The typical subassociation develops on deep, very rich in humus, from subalkaline to neutral and with limited slope soils. The adiantetosum capilli-veneris subassociation develops on very wet substrate, it is characteristic of dripping rocks and spring areas. The communities are syntaxonomically related to the Sardo-Corsican endemic alliance Caricion microcarpae.

Studio fitosociologico delle cenosi a Carex microcarpa Bertol. ex Moris della Sardegna maridionale

BACCHETTA, GIANLUIGI;
2004

Abstract

Phytosociological study on Carex microcarpa Bertol. ex Moris communities in southern Sardinia (Italy). Results of a phytosociological study on Carex microcarpa Bertol. ex Moris communities in southern Sardinia (Italy), are herein presented. For the vegetation analysis ten phytosociological relevés, five soil profiles and a bioclimatic analysis on thermopluviometric stations present in Sulcis-Iglesiente and Sarrabus-Gerrei regions, were carried out. All data were elaborated and subsequently submitted to multivariate statistical analysis. This permitted to recognize two principal groups that correspond with to two different subassociations which are vicarious in relation to the substrate and its physical chemistry features. All relevés are referable to the Hyperico hircini-Caricetum microcarpae ass. nova. In particular those of the former group belong to the typical subassociation oenanthetosum crocatae subass. nova. and those of the second one to adiantetosum capilli-veneris subass. nova. The typical subassociation develops on deep, very rich in humus, from subalkaline to neutral and with limited slope soils. The adiantetosum capilli-veneris subassociation develops on very wet substrate, it is characteristic of dripping rocks and spring areas. The communities are syntaxonomically related to the Sardo-Corsican endemic alliance Caricion microcarpae.
Carex microcarpa; chorology; helophytic vegetation; phytosociology; Sardinia
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11584/12934
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