1,720,969 research outputs found
Mapping environmental data with a Geographic Information System
No full textClimate change is a current issue: temperature and rainfall raise, glaciers and snow melt and the global average sea level is rising. This cuases an increase of natural hazards (such as flooding risk and landslides), that could become more frequent. In this context, resident population should adapt to global environmental and climate change. The assessment of land use changes, occured since the last decades, can help controlling and understanding transformations. Nowdays, the Geographic Information System (GIS) technology is apllied to various sectors (environment, engineering, geology, architecture, etc.), in order to help stakeholdrs in analyzing different types of spatial data and to dispaly them in easy understandable maps. This study illustrates the land use changes of Muson river watershed (Treviso province, Northern Italy), occured in the last twenty years, and that contribute to conditioning the river hydrodynamic, in relation to climate change
Terroir et vignoble: how the farming management can affect the production of a quality wine
Full text linkDal suolo alla tavola: elementi per la tracciabilità di prodotti della filiera agroalimentare
No full textNegli ultimi anni la tracciabilità dei prodotti agroalimentari ha assunto sempre più importanza, soprattutto tra i consumatori desiderosi di conoscere non solo il valore nutrizionale dei cibi ma soprattutto la loro autenticità e provenienza. Lo scopo di questa ricerca è riconoscere quali sono le caratteristiche geochimiche del prodotto tipico considerato (radicchio rosso di Treviso) che riflettono le peculiarità del suolo di provenienza.
Per questo motivo si sono adoperati marker geochimici “stabili” in modo da fornire indicazioni attendibili circa l’area di origine dei prodotti tipici considerati. Oltre a determinare le caratteristiche chimico–fisiche basilari del suolo (pH, carbonio organico, calcare totale, tessitura e capacità di scambio cationico) si sono valutati il contenuto di macronutrienti (come Ca, K, Mg, N, Na P, S) e di micronutrienti (es. Cu, Zn, Mn, B, Fe) per avere informazioni riguardo la fertilità del suolo di produzione, gli isotopi stabili (es. δ18O, δ13O, D, δ13C, δ34S, δ15N) come elementi di riferimento geopedologici, e i metalli pesanti presenti (es. Al, Cd, Co, Cr, Ni, Pb, V). Per capire la variabilità dei siti investigati si sono considerati diverse matrici ambientali: suolo, pianta, concimi, precipitazioni e acque di irrigazione
Regional geographic traceability of Treviso Red Chicory
Full text linkFood traceability is the ability to track any food through food supply chain, from production to distribution, from where the food came (one step back) and to where the food will go (one step forward). Food geographical origin is essential to protect regional designation, ensure fair competition, prevent diffusing of food pathogen and, last but not least, improve consumer confidence. The technique of stable isotopes is an effective tool for food origin assessment and to recover consumers’ confidence; it’s generally adopted to various food such as wine, honey, coffee, dairy, vegetables, meat and so on. The aim of this work is to check the geographical origin of Treviso Red Chicory (tardivo and precoce varieties) applying the stable isotopes technique. Several environmental matrices (i.e. oil, water and vegetable) will be examined to ensure the uniqueness and quality of the final product. Two areas were investigated in Veneto (NE of Italy): the former, located in Treviso province, is regulated by the Consortium of variegated Red Chicory of Treviso and Castelfranco; the latter is located in Padova province and is not regulated by the Consortium. Approximately, 89 Chichory samples (63 for tardivo and 26 for precoce varieties) and 68 soil samples (taken at different depth: 0-20 cm and 20-40 cm) were collected. A monthly precipitation sampling (started from October 2015) were conducted in the study areas and 4 irrigation water samples were also collected. The next step of this work, focused on the stable isotope analysis of the above mentioned matrices, will hopefully give the isotopic signature of the examined product
Short - Term Land use Changes and Hydrodynamics in the Muson River Watershed (TV) in Relation to Climate Change
No full textLand development is the result of the economic and social organization of a community, and is connected to the adaption of resident population to changing environment. The assessment of land use changes can help controlling and understanding these transformations. This study illustrates the land use modifications of the Muson river basin (Treviso province, Northern Italy), occurred in the last twenty years, and that contribute to conditioning the river hydrodynamics, in relation to climate chang
A GIS – based methodology for land suitability evaluation in Veneto (NE Italy).
No full textSince almost ten years, the Soil Science Research Group in Venice is carrying out studies on the characterization of soils in the Veneto region and their suitability for specific uses. Several areas have been investigated with the aim to select the best land use for a sustainable environment. The scenarios taken into consideration range from the Alpine and pre – Alpine region to the alluvial plain. Attention has been focused especially to land suitability for forestry, typical and niche crops, pasture and vineyard. The land evaluation procedure has been applied by a GIS – based methodology. Today, the GIS techniques are essential for the success of a correct and fast work, concerning the interpretation and processing of soil data and its display in form of map. Integrating information with crop and soil requirements, by means of "matching tables", it was possible to edit and manage land suitability maps for specific purposes. The applied methodology proved a useful and effective tool for sustainable land management
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
- …
