The spunnulate are not very deep cave-collapse sinkholes, developed in carbonate rocks, mainly of Quaternary age. The interior usually is filled with water which is brackish because of its proximity to the sea (NOVEMBRE, 1961a, 1961b; DELLE ROSE and FEDERICO, 2002). In the territories of Porto Cesareo and Nardò, there are about 60 spunnulate with different morphologic and ecologic features. According to Directive 92/43/EEC, these are classified as "Cave not open to the public" and "Submerged or partially submerged sea caves" natural habitats of Community importance, as "Coastal lagoons" priority habitat, and as the habitats of some animal species. The aim of this study is to provide a description about the spatial distribution of spunnulate in the subject territory and a description about hydrophytic and riparian vegetation; futhermore, an analysis about factors that negatively affects the conservation status of these habitats. This study carries out vegetation, morphology and environmental stress land data collected through a census at a fine scale. GIS technology is employed for the analysis at a wider scale to make a vegetation map of the spunnulate 500 m geographic surround, through photointerpretation. To evaluate the conservation status of the spunnulate, 15 indicators were developed according to DPSIR model (ORGANISATION FOR ECONOMIC COOPERATION AND DEVELOPMENT, 1993; ENVIRONMENTAL EUROPEAN AGENCY, 1999). For each one, it was provided an assessment wich outcome is: positive for 2, negative for 7 and neutral for 6.
VALUTAZIONE DELLO STATO DI CONSERVAZIONE DELLE "SPUNNULATE" DELLA COSTA DI PORTO CESAREO E NARDÒ (PROVINCIA DI LECCE) CON UN APPROCCIO VEGETAZIONALE
Delle Rose M;
2006
Abstract
The spunnulate are not very deep cave-collapse sinkholes, developed in carbonate rocks, mainly of Quaternary age. The interior usually is filled with water which is brackish because of its proximity to the sea (NOVEMBRE, 1961a, 1961b; DELLE ROSE and FEDERICO, 2002). In the territories of Porto Cesareo and Nardò, there are about 60 spunnulate with different morphologic and ecologic features. According to Directive 92/43/EEC, these are classified as "Cave not open to the public" and "Submerged or partially submerged sea caves" natural habitats of Community importance, as "Coastal lagoons" priority habitat, and as the habitats of some animal species. The aim of this study is to provide a description about the spatial distribution of spunnulate in the subject territory and a description about hydrophytic and riparian vegetation; futhermore, an analysis about factors that negatively affects the conservation status of these habitats. This study carries out vegetation, morphology and environmental stress land data collected through a census at a fine scale. GIS technology is employed for the analysis at a wider scale to make a vegetation map of the spunnulate 500 m geographic surround, through photointerpretation. To evaluate the conservation status of the spunnulate, 15 indicators were developed according to DPSIR model (ORGANISATION FOR ECONOMIC COOPERATION AND DEVELOPMENT, 1993; ENVIRONMENTAL EUROPEAN AGENCY, 1999). For each one, it was provided an assessment wich outcome is: positive for 2, negative for 7 and neutral for 6.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
