Search results for "CAPE"

Assessing the functional connectivity of reserve networks in continuously varying nature under the constraints imposed by reality

2011

Concept of Biogenic Ferromanganese Crust Formation: Coccoliths as Bio-seeds in Crusts from Central Atlantic Ocean (Senghor Seamount/Cape Verde)

2011

At depths of 2,000 to 3,000 m, seamounts from the Cape Verde archipelago (Central Atlantic Ocean) are largely covered with ferromanganese crusts. Here we studied 60 to 150 mm thick crusts from the Senghor Seamount (depth: 2257.4 m). The crusts have a non lamellated texture and are covered with spherical nodules. The chemical composition shows a dominance of MnO2 (26.1%) and Fe2O3 (38.8%) with considerable amounts of Co (0.74%) and TiO2 (2.1%). Analysis by scanning electron probe microanalyzer (EPMA) revealed a well defined compositional zonation of micro-layers; the distribution pattern of Mn does not match that of Fe. Analysis by high resolution scanning electron microscopy (SEM) revealed…

Geoconservation in Sicily (Italy): the Example of the Isola delle Femmine (Palermo)

2022

Abstract The Regional Administration of Sicily recently erected Isola delle Femmine—a small island of the Tyrrhenian Sea, close to Palermo—as a geosite. A detailed geological survey has been carried out in order to define the most important geological features of the island together with the development of a new geological map based on topographic data and a digital model at 1:2.000 scale specially processed. Finally, a geological pathway through the island has been traced and illustrated. The geological substrate of Isola delle Femmine consists of a Mesozoic carbonate succession belonging to the Panormide Carbonate Platform. Two lithostratigraphic units have been differentiated. The lowest…

Social Tourism and Healthy Ageing

2015

Recent research in social tourism notes possible links between tourism participation and improvements in health. However, there is a lack of quantitative evidence concerning the potential links between tourism participation and self-reported health amongst older people. An ageing society requires measures to promote independent living and enhance older people's quality of life. This paper provides evidence that older tourists are more active and healthy than non-tourists, from a study comparing health perceptions amongst Spanish older people. The results provide tentative conclusions of causal relationships between tourism and dimensions of physical and mental health through a Structural Eq…

The commercial activity of tourism companies. Perception of tourism students

2019

El presente trabajo pretende analizar la opinión que los estudiantes universitarios de Turismo tienen respecto a desarrollar su futuro laboral en el área comercial de empresas turísticas, la que más oferta de puestos de trabajo genera en España. En concreto, se pretende conocer cuál es su percepción sobre este tipo de trabajo, tanto desde un punto de vista personal como profesional. Para alcanzar estos objetivos, se ha encuestado a 348 estudiantes de diferentes cursos, de grado y posgrado, que han sido clasificados en función de su interés por trabajar como vendedores en el sector turístico. Los resultados muestran que, en general, la valoración de una futura actividad de tipo comercial es …

Il restauro del moderno: la centrale termoelettrica di Giuseppe Samonà, Augusta (SR)

2014

Negli anni Sessanta, l’industria elettrica era la forza motrice del processo di industrializzazione in Sicilia. La centrale termoelettrica di Augusta fu la prima grande opera a lanciare lo sviluppo dell’isola, partendo dalla costa sudorientale. Nel 1956, l’incarico della sua progettazione fu assegnato a Giuseppe Samonà, uno dei più importanti architetti italiani del XX secolo, a quell’epoca preside dello IUAV. La centrale, adesso dismessa, che può considerarsi come un pregevole esempio di architettura industriale, si trova all’interno del polo petrolchimico di Augusta, in connessione diretta con il porto e la città. Si tratta di un luogo storicamente estremamente stratificato, in cui la cit…

Long-term impacts of increased timber harvests on ecosystem services and biodiversity: A scenario study based on national forest inventory data

2020

Abstract The transition to a climate-neutral economy is expected to increase future timber demands and endanger the multifunctionality of forests. National scenario analyses are needed to determine long-term forest management impacts and support forest policy making in defining guidelines for the sustainable provision of forests’ ecosystem services and biodiversity (ESB). Using national forestry inventory data, the forest management model MASSIMO and a model to estimate harvesting costs, we simulated forest development in Switzerland under five politically relevant timber harvesting scenarios until 2106 (business as usual and four increased timber mobilisation scenarios). Model results were…

Microbiological analysis and metagenomic profiling of the bacterial community of an anthropogenic soil modified from typic haploxererts

2022

This work aimed to characterize the microbial communities of an anthropogenic soil originating from application of pedotechniques to Vertisols in a Mediterranean environment. Bare soil profiles were sampled at three depths (0–10 cm, 10–30 cm, and 30–50 cm) and compared with the original soil not transformed at the same depths. The anthropogenic soils were characterized by a higher CaCO3 concentration (360–640 g/kg) than control soil (190–200 g/kg), while an opposite trend was registered for clay, where control soil showed a higher concentration (465 g/kg on average) than anthropogenic soil (355 g/kg on average). Organic carbon content was much higher in the unt…

The Managing and Restoring of Degraded Land in Post-Mining Areas

2022

Mining is an important branch of the economy, providing raw materials necessary for the economic and civilization development of the country [...]

Soil Erosion and Deposition Rate Inside an Artificial Reservoir in Central Italy: Bathymetry versus RUSLE and Morphometry

2022

This study, using different direct and indirect methodologies, evaluated the sedimentation rate in an artificial reservoir in central Italy. This reservoir is regionally representative and was built in the 1960s for hydroelectric purposes; it has experienced a strong decrease in trap efficiency and a loss of over 70% of the stored water volume. Direct measurements of the lake bottom bathymetry, carried out in 2006 and 2015, and 3D reconstructions performed in a GIS environment, made it possible to calculate the volume of filling material and to verify an increasing trend in the sedimentation rate since 2006. The sample reservoir denudation rate was compared with that obtained using the Revi…