Search results for " GIS"
showing 10 items of 161 documents
SOILPRO: a LIFE+ project implementing soil monitoring and protection together with regional stakeholders of Sicily and Peloponnese.
2011
According to the Thematic Strategy for Soil Protection, the LIFE+ ENV/IT/00428 SOILPRO project (http://www.soilpro.eu) has the overall objective of slowing down the progress of soil degradation in EU Member States, and supporting local and regional authorities (LRAs) in the identification and monitoring of risk areas. The monitoring of the on-going soil degradation processes and the evaluation of different protection measures are realized through a web-based application (SMS – Soil Monitoring System), developed according to data and knowledge obtained from the different project partners. The SMS was initially applied on the whole Sicily (Italy) and Peloponnese (Greece) regions and then test…
Aggiornamenti e novità sulle conoscenze di Pancratium maritimum (Amaryllidaceae)
2014
Pancratium maritimum L., bulbosa perenne degli ambienti dunali costieri, è un taxon relativamente recente se comparato con le specie del genere a gravitazione mediterranea. Gli studi noti su questa specie hanno analizzato vari aspetti della biologia (riproduttivi, biochimici, filogenetici, genetici, ecc.). Tuttavia, esistono ancora lacune scientifiche, tra cui l’assenza di studi su ampio areale di genetica di conservazione e sugli adattamenti eco-morfofisiologici alle condizioni di stress. Per ampliare le conoscenze su P. maritimum, la Fondazione Nando Peretti nel novembre 2012 ha finanziato un progetto triennale sulla conoscenza e la salvaguardia di questa specie (Progetto 2012-83). In que…
Assessment of the environmental quality of the Sicilian coast through a phytoecological and biogeographic analysis
2017
Large-scale habitat measurements have been aided greatly by advances in remote sensing and GIS software. However, the degree of resolution of this technique is still inadequate for many purposes, such as detail monitoring of many habitats that occur on the coast (e.g. temporary Mediterranean pools or ephemeral therophytic grasslands). Lists and distribution mapping of taxa are probably the most commonly used surrogate for overall biodiversity at both local and broader scales. For the Sicilian coasts a complete study, dating back more than 25 years ago and based on a multidisciplinary approach of flora, vegetation and fauna, exists (Raimondo & al. 1990. Quad. Bot. Amb. Appl. 1: 131-182).…
La cartografia delle serie di vegetazione a grande scala: il caso di una piccola ZSC della Sicilia centrale
2015
La carte delle serie di vegetazione rappresentano un utile strumento applicativo per la pianificazione ambientale e la conservazione della biodiversità. La loro elaborazione a grande/grandissima scala può fornire una dettagliata cbiave di lettura del paesaggio vegetale, della sua eterogeneità ambientale e può consentire di delinearne con estrema precisione le dinamiche evolutive. Sulla scorta delle metodologie esistenti in letteratura, nel presente contributo viene applicato in ambiente GIS un criterio deduttivo che consiste nella predisposizione di tematismi di base a grande scala (carta della vegetazione reale, carta geologica, carta delle pendenze, carta delle esposizioni) e nella compil…
LiDAR-derived DTM for historical landscape evaluation: the case study of the “Harvesting Memories” project (Castro Valley and Mt. Barraù, Corleone – …
2016
The project “Harvesting Memories” is focused on the analysis of the long-term transformation of the cultural landscape in a rural area of Central-Western Sicily (Castro Valley and Mt. Barraù, Corleone – Palermo). In order to quickly outline the history of the territory with an acceptable precision, our survey aimed at covering and sampling as much surface as possible, according to time and human resources available. To reach this goal, in the research design we opted for qualitative surveys. The choice of the fields to be surveyed was based on GIS analysis — our predictive model took in consideration slope, water sources and presence of points with high visibility in the landscape —, that h…
Spatio-temporal patterns and drivers of secondary succession in a Mediterranean landscape
2017
In recent years, many Mediterranean agricultural lands have been abandoned, reforested, rewilded and ecologically restored, creating different templates and trajectories for the development of secondary succession. Our objective was to verify whether past legacies of woody vegetation (remnant forest, shrub patches and reforestations) influenced the current spatial pattern of woody cover in a mid-successional Mediterranean area, identifying spatial cold and hotspots (i.e: low/slow or high/fast cover increase) and looking for footprints of seed-disperser and herbivore-mediated processes at landscape and local scales. The study took place in three 500x200 m plots in a formerly managed and part…
La struttura spaziale della successione secondaria delle piante legnose in un pascolo mediterraneo
2018
Negli ultimi decenni molte aree agricole e pastorali dell’Europa e del Mediterraneo sono state abbandonate o hanno subito importanti cambiamenti nell'intensità dell'uso antropico, determinando processi di successione secondaria a volte anche rapidi dopo secoli di attività agricola determinando in alcuni casi un forte cambiamento nelle proporzioni tra aree agricole e aree forestali in molti paesi tra cui l’Italia. Nonostante molti studi abbiano descritto gli aspetti fitosociologici e strutturali di questa successione secondaria in diverse aree del Mediterraneo, la maggior parte di questi studi sono stati condotti su larga scala, con pochi dati disponibili riguardo alla struttura spaziale svi…
THE ROLE OF VOLCANIC AND ANTHROPOGENIC ACTIVITIES IN CONTROLLING THE EROSION PROCESSES AT VULCANO ISLAND (ITALY)
2011
The paper describes the erosion processes acting at La Fossa cone (Vulcano Island, Italy). La Fossa cone is a stratovolcano made up of pyroclastic deposits and lavas covered by tuffs from the last eruption, dated 1888-90. Its flanks are affected by intense water erosion phenomena leading to the formation of denudation surfaces due to sheet erosion, rills, gullies and small canyons. As a consequence of very intense rainfalls, episodic debris flows occur along main gullies and canyons. Fumarolic activity plays an important role in the control of erosion processes, being both an obstacle for the growth of vegetation and a weathering factor. The GIS analysis and comparison of geo-referenced map…
Multi-parametric GIS analysis to assess gully erosion susceptibility: a test in southern Sicily, Italy
2011
: A GIS-analysis was carried out in a test basin of southern Sicily, the Magazzolo River basin, in order to assess susceptibility conditions to gully erosion phenomena. The linear density of ephemeral and permanent gullies computed within each class of nine environmental variables was used to generate a gully erosion susceptibility map for the area. A validation procedure carried out in order to test the reliability of the adopted method highlighted a clear correlation between the occurrence of gullies and the computed susceptibility levels