ACTIVE GEOMORPHOSITES IN DIFFERENT MORPHOCLIMATIC ENVIRONMENTS: PROCESSES, EVOLUTION, EROSION RATES AND STRATEGIES FOR EDUCATIONAL DISSEMINATION
Tesi di Dottorato
Data di Pubblicazione:
2012
Citazione:
ACTIVE GEOMORPHOSITES IN DIFFERENT MORPHOCLIMATIC ENVIRONMENTS: PROCESSES, EVOLUTION, EROSION RATES AND STRATEGIES FOR EDUCATIONAL DISSEMINATION / I.m. Bollati ; tutor: M. Pelfini ; coordinatore: N. Saino. Universita' degli Studi di Milano, 2012 Mar 05. 24. ciclo, Anno Accademico 2011.
Abstract:
Geomorphosites are a recent research topic in geomorphology and they represent one of the most important vehicle for dissemination of Earth sciences. More in particular active geomorphosites are the most suitable at this scope for the evidence of processes and deriving landforms.
These sites have been chosen in order to structure a research project that focus on monitoring, evaluating and disseminating of data regarding modeling processes interesting meaningful geomorphosites, always in relation with the geological component of the landscape.
The importance of monitoring active geomorphosites and reconstructing the main geomorphological past events affecting them is twofold.
On one side, the investigation of processes modalities may be useful for predicting the velocity of evolution of these sites that can be considered natural assets, often threatened by the same geomorphic processes ongoing.
On the other side it has to be considered the educational importance of active geomorphosites in particular because of their high representativeness in term of geomorphic processes and their evolution characterized by times that are comparable to human timescale, and for this reason more comprehensible by the educational targets. So their importance as educational tools requires a rigorous characterization of geomorphic processes from a scientific point of view, also because they may represent source of hazards that can be translated in risk scenarios, especially in touristic contexts.
The aims of the research project have been the structuring and testing of a general procedure to be proposed to work on geomorphosites. At this scope the research project has been articulated in three main sections: quantification of evolution rates of selected geomorphosites, structuring of a database for evaluation and selection of active geomorphosites for different scopes, and elaboration of educational applications starting from the scientific data that derive from the monitoring of sites and basing on the results obtained from evaluation of sites through the database.
More in detail for the first section, the integration of different investigation techniques has been applied. In the different morphoclimatic and morphogenetic contexts (Monte Oliveto Maggiore, Trebbia River, Pyramidés d’Euseigne) the dendrogeomorphological techniques have been compared to quantitative geomorphology, topographic survey and ortophoto analysis in order to obtain different sets of data, to be calibrated each others. Dendrogeomorphology allows also a more detailed analysis of the ecological support role of geomorphosites, that is an important feature characterizing the scientific value of sites.
The structuring of the database allows to take into consideration the importance of sites not only from a geomorphological point of view but also for the interactions with geological and vegetation elements of the landscape as well as with the human components inserted in it. The results of evaluation through the database, that are presented here, derived from two testing areas (Trebbia River and Miage Glacier).
For what concerns educational applications, they have been thought in order to consider all the aspects herein described and three main proposals are presented. An educational project has been developed with a secondary school along the Trebbia River, in order to focus on the time concept in evolution of a complex geomorphosites like the fluvial landscape, taking into consideration geomorphology, geology, vegetation and human components of the landscape. Then the geological and vegetation aspect have been deepened through the investigations respectively of climbing walls (Montestrutto and Arnad), in order to make people more confident to lithological aspect using recr
Tipologia IRIS:
Tesi di dottorato
Keywords:
active geomorphosites ; relational database ; dendrogeomorphology ; Earth sciences dissemination
Elenco autori:
I.M. Bollati
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