Search results for " eros."
showing 10 items of 418 documents
Analisi delle distribuzioni dimensionali delle gocce di pioggia rilevate in Sicilia
2009
Sviluppo e valutazione di pratiche soglie per separare le piogge erosive responsabili di processi interrill e rill
2018
For the experimental station Masse threshold levels able to separate interrill erosive events from non erosive events were developed and tested. The Masse database was composed of 258 rainy events (189 non-erosive events and 70 interrill erosive events). Thresholds for separating erosive-interrill events from erosive-rill events were developed and verified at Sparacia analysing 77 erosive events (64 interrill and 13 rill). At Masse the threshold in terms of event rainfall depth, Pe, was, among the analyzed variables, the most effective one to distinguish between non-erosive and erosive interrill rainfall events. The rainfall events with a total depth Pe > 13 mm are identified as interrill e…
Nuovi e antichi paradigmi nello studio dei processi erosivi
2011
Evoluzione della biodiversita’ vegetale in alcuni siti pedologici ad eucalyptus in seguito all’utilizzazione forestale
2008
Soil genetic erosion: a new concept for a new environmental challenge and a new soil paradigm
2018
The author proposes a new concept of soil erosion to shed new light on soil erosion an ecological environment conservation in order that politicians and administrators could pay great attention to preserve soil resources. A new concept of soil erosion is suggested by proposing ideas, explaining concepts, summarizing and case studies. The economic value should be assigned to the soil ecosystem services and the new concept of soil erosion that could be called “soil genetic erosion” is proposed. Soils are very diverse natural resources that positively affect and promote the economy of the social systems if they are maintained in good health.
L'incremento della sostenibilità ambientale attraverso la diminuzione del rischio erosivo.
2014
Riassunto: Lo scopo di questo lavoro è quello di mettere a punto, a partire dalle informazioni territoriali quali caratteristiche meteorologiche e pedologiche,uno studio capace di evidenziare la sostenibilità della gestione attuale di due ipoteticheparcelle sperimentali individuate nel territorio del sottobacino Iudeo-Bucari (Trapani). Si tratta di due vigneti che rappresentano per caratteristiche morfologiche e gestionali la collina del sottobacino ovvero una delle aree maggiormente vitate della Sicilia. Il fine è valutare la sostenibilità della gestione del suolo in termini di controllo dell’erosione (perdita di suolo), attraversol'applicazione del modello USLE (Universal Soil Loss Equati…
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
Comparing Logistic Regression and MARS approaches for gully erosion susceptibility evaluation in central-northern Sicily
2012
Application of 3D Photo-reconstruction techniques in Geomorphology: Examples through different landforms and scales
2014
Recent developments made in tri-dimensional photo-reconstruction techniques (3D-PR), such as the use of Structure from Motion (SfM) and MultiView Stereo (MVS) techniques together, have allowed obtaining high resolution 3D point clouds. In order to achieve final point clouds with these techniques, only oblique images from consumer un-calibrated and non-metric cameras are needed. Here, these techniques are used in order to measure, monitor and quantify geomorphological features and processes. Three different applications through a range of scales and landforms are presented here. Firstly, five small gully headcuts located in a small catchment in SW Spain were monitored with the aim of estimat…