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L’analisi diacronica dell’uso del suolo nella cartografia: l’alta val di Vara (SP) tra 1936 e 2019
The diachronic analysis of land use in cartography: the upper Vara valley (Liguria, Italy) between 1936 and 2019
Priarone, Enrico
2023
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e-ISSN
2282-572X
Abstract
Using the technique of progressive map comparison, the aim of this research is to reconstruct the landscape and land use transformations that have occurred in the upper Vara valley (Liguria, Italy). With the aim of updating the studies on the valley and quantifying the changes that have occurred, the analysis was based on a comparison between the 1936 Italian Kingdom Forest Map, the 1988 Vegetation Map of the Upper Vara Valley and the 2000 and 2019 Land Use Maps of the Liguria Region. The main results show a marked increase in the wooded area between 1936 and 2019 of 46.39% (with an incidence on the whole area rising from 52% to 77%) and the speed of the phenomenon between 1988 and 2000 (+22.60%). A parallel decrease in agricultural areas (-51% between 1988 and 2019 and -37.34% between 1988 and 2000) and the abandonment of silvicultural practices demonstrate a progressive and widespread rewilding in the upper valley.
Attraverso la tecnica del filtraggio cartografico progressivo, lo scopo della ricerca è la ricostruzione delle trasformazioni paesaggistiche e di uso del suolo intercorse nell’alta val di Vara (SP). Con l’obiettivo di aggiornare gli studi sulla valle e di quantificare i cambiamenti avvenuti, l’analisi è stata svolta attraverso il confronto tra la Carta forestale del Regno d’Italia del 1936, la Carta della vegetazione dell’alta Val di Vara del 1988 e le Carte dell’Uso del Suolo della Regione Liguria del 2000 e del 2019. I principali risultati evidenziano un aumento delle aree boschive tra il 1936 e il 2019 del 46,39% (con un’incidenza sull’intera superficie passata dal 52% al 77%) e la particolare rapidità del fenomeno tra il 1988 e il 2000 (+22,60%). Una parallela diminuzione delle aree agricole (-51% tra 1988 e 2019 e -37,34% tra 1988 e 2000) e l’abbandono delle pratiche di sfruttamento boschivo dimostrano una progressiva e diffusa rinaturalizzazione nell’alta valle.
Using the technique of progressive map comparison, the aim of this research is to reconstruct the landscape and land use transformations that have occurred in the upper Vara valley (Liguria, Italy). With the aim of updating the studies on the valley and quantifying the changes that have occurred, the analysis was based on a comparison between the 1936 Italian Kingdom Forest Map, the 1988 Vegetation Map of the Upper Vara Valley and the 2000 and 2019 Land Use Maps of the Liguria Region. The main results show a marked increase in the wooded area between 1936 and 2019 of 46.39% (with an incidence on the whole area rising from 52% to 77%) and the speed of the phenomenon between 1988 and 2000 (+22.60%). A parallel decrease in agricultural areas (-51% between 1988 and 2019 and -37.34% between 1988 and 2000) and the abandonment of silvicultural practices demonstrate a progressive and widespread rewilding in the upper valley.
Source
Enrico Priarone, "L’analisi diacronica dell’uso del suolo nella cartografia: l’alta val di Vara (SP) tra 1936 e 2019" in: "Bollettino dell'Associazione Italiana di Cartografia 178 (2023)", EUT Edizioni Università di Trieste, Trieste, 2023, pp. 114-127
Languages
it
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
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