Search results for " Mediterranean."
showing 10 items of 1153 documents
Pedogenesis and carbon sequestration in transformed agricultural soils of Sicily
2021
The increasing atmospheric CO2 concentration is a consequence of human activities leading to severe environmental deteriorations. Techniques are thus needed to sequester and reduce atmospheric carbon. One of the proposed techniques is the transformation or construction of new soils into which more organic carbon can be sequestered and CO2 be consumed by increased weathering. By using a chronosequence of new and transformed soils on crushed limestone (0–48 years) in a Mediterranean area (Sicily), we tried to quantify the amount of organic carbon that could be additionally sequestered and to derive the corresponding rates. A further aim was to trace chemical weathering and related CO2 consump…
Criteria to Develop the Historical Centre of Malta, Open Air Museum
2009
The paper shows the results achieved during a research developed during the Community Program called INTERREG IIIA ITALIA-MALTA (2004-2006) - METIC – Mediterranean Trading and Innovation Centre. The research has been organized around the theme of a new kind of tourism were the tourists wont to become part of the daily life of the places they visit, and want their journey to be an occasion of knowledge of new place, new culture but, in particular, of the common life of the local people. Malta and its Historical centre have a tourist vocation, this aspect is very important to put in action new development strategies to recover a Mediterranean landscape destined to a slow decay. Malta is one o…
The Centaurea parlatoris complex (Asteraceae): taxonomic checklist and typifications
2021
A taxonomic account of the Centaurea parlatoris complex (Asteraceae), endemic to Sicily, is presented. This complex includes six taxa, three described in the 19th century (C. parlatoris, C. parlatoris var. tomentosa and C. parlatoris var. virescens) and three recently described (C. sicana, C. giardinae and C. heywoodiana). Starting from the designation of the types for the oldest plant names that have not been typified yet, taxonomic considerations are formulated and C. parlatoris var. virescens is elevated to the rank of species. An identification key and a distribution map complete this account.
Nomenclatural notes on Fabaceae described from Sicily
2021
A note about some taxa in Anthyllis and Trifolium (Fabaceae) described from Sicily is presented. Concerning Trifolium, we provide the lectotypification of the name T. pratense var. semipurpureum (≡ T. pratense subsp. semipurpureum), using a specimen preserved at PAL (Todaro’s collection). Concerning the Lojacono-Pojero’s name Vulneraria heterophylla var. parvula, it is lectotypified by a specimen at G. A neotype at NAP is proposed for the Gussone’s name Vulneraria heterophylla var. albiflora. As this latter name is applied to a taxon accepted here at specific rank, a new combination is validated. On the contrary, A. heterophylla var. parvula is considered as a new heterotypic synonym of Ant…
The intensity of agro-food trade between the countries of the Mediterranean basin
2012
The Mediterranean has always been an area of strategic interest for the European Union (EU), since its establishment, has woven with his partners of the South and East of the Mediterranean a dense network of relationships, by signing agreements cooperation, first, and association, then. The study aims to present an evolutionary picture of the agro-food trade network between the countries of the EU's Mediterranean partners and his neighbours in North Africa and the Near East. Using specific indicators, widely used in the economic literature that analyse trade in sectors, however, different from the agro-food, to measure the intensity of the trade. In particular, the analysis by the applicati…
AGRI-FOOD TRADE INTENSITY IN THE MEDITERRANEAN SCENARIO
2013
In recent years, a political, economic, commercial, social and cultural dialogue get intensified among the Mediterranean countries. In particular, the establishment in 2008 of the Union for the Mediterranean, under the impulse of the French Presidency, represents the last act of the Euro-Mediterranean integration process, that binds more strongly the EU and Mediterranean countries, in particular those of the Southern and Eastern shores. The agriculture is an economic activity of great interest in the Mediterranean area due to the weight of employment and the contribution to the richness it brings to certain countries. In this work we analyze the intensity of agri-food trade among the EU Med…
Los tráficos ilícitos en el Mediterráneo y las organizaciones poli-criminales transnacionales
2021
After a general overview on the movements in the Mediterranean between yesterday and today, the contribution underlines the emergence of poly-criminal organizations in this area. On the basis of the consideration of the different types of criminals organisations operating in the Mediterranean, reference is made to the results of a related research on five penal systems (Italy, Spain, Portugal, Germany, Greek).. El estudio abordado hace referencia a la presencia en el Mediterráneo de los tráficos ilícitos, y sobre el papel protagonista que en estos componentes ocultos de la movilidad y de la globalización juegan las organizaciones criminales transnacionales. Estos dos aspectos se enfrentan a…
What is a tree in the Mediterranean Basin hotspot? A critical analysis
2019
Background: Tree species represent 20% of the vascular plant species worldwide and they play a crucial role in the global functioning of the biosphere. The Mediterranean Basin is one of the 36 world biodiversity hotspots, and it is estimated that forests covered 82% of the landscape before the first human impacts, thousands of years ago. However, the spatial distribution of the Mediterranean biodiversity is still imperfectly known, and a focus on tree species constitutes a key issue for understanding forest functioning and develop conservation strategies. Methods: We provide the first comprehensive checklist of all native tree taxa (species and subspecies) present in the Mediterranean-Europ…
Soil erosion assessment on tillage and alternative soil managements in a Sicilian vineyard
2011
Mediterranean crops favour high erosion rates. Vineyards use to reach the highest soil and water losses due to the lack of vegetation cover. A topographical approach by means of the use of vineyards poles as fixed reference point as erosion markers allowed to quantify high and non-sustainable soil erosion rates on the Sicilian vineyards during 9 years. In order to develop strategies to control the soil losses, seven land management were selected and applied in a typical blanc wine grape vineyard located in southwestern Sicily. Comparable plots were managed traditionally using conventional tillage and alternatively using various cover crops: 1) Vicia faba; 2) Vicia faba and Vicia sativa; 3) …
Deep stratosphere-to-troposphere transport (STT) over SE Europe: a complex case study captured by enhanced <sup>7</sup>Be…
2005
Abstract. In this study we present a complex case study of a Stratosphere-to-Troposphere Transport (STT) event down to the surface of a low topography region in Northern Greece, during the second fortnight of March 2000. During this event our surface station at Livadi (23°15 E/40°32 N, 850 m a.s.l.), was influenced by very different synoptic systems developing over Eastern Europe, N. America and the N. Atlantic, the last one evolving to a cut-off low over France/Spain. This is the first study, to our knowledge, that presents a down to the surface STT event in the eastern Mediterranean. The intrusion is primarily captured with the use of the cosmogenic radionuclide 7Be, which increased to 9.…