Dinamiche dell’uso e delle coperture del suolo dell’ultimo mezzo secolo nel paesaggio forestale siciliano.

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Abstract

[automatically translated] The work was conducted under Action 3 of the project LIFE11 ENV IT 215 'resilience to climate change in Mediterranean forests ". In particular, it has been implemented a monitoring system through diachronic investigations on major regional contexts pre-forestry and forestry in Sicily. The analysis was conducted at the landscape level in six forest districts, representative of the main forest categories in the region, such as the Sicilian, the Madonie, Nebrodi, Etna, the area of Calatino (Sicily SO) and the island Pantelleria. The analysis aims to use change and land cover have taken place over the last sixty years. For the realization of the information layers have been used to photo-interpretation of remote sensing images in the GIS environment. In particular, the images used and made layers of information are related to five periods: 1955, 1966/68, 1988/89 (aerial photos), 2007/12 (orthophotos). The thematic details of collateral for periods 1988/89 and 2012 was realized from the legend of forest categories of the Forest Charter of the Sicilian Region (CFRS 2011), appropriately updated and verified. The historic roofs were obtained using a special stereoscopic photo interpretation of aerial photographs covering the years 1955, 1966/68. Have also been made, for all the years considered, the coverage maps, using six progressive classes. For the time-based comparison of land cover between the 1988/89 and 2012 it was possible to achieve a high level of thematic accuracy corresponding to the legend of forest categories of CFRS, while for the period between 1954/55 and 1966/68 l 'obtained thematic accuracy corresponds to the level of legend Corine LC III, the same detail covered the diachronic comparison between 1955 and 2012. the diachronic analysis of uses and land cover has identified the components of the forest cover that in the period under investigation they have not undergone transformations in its horizontal structure; They have been mapped to the variation areas, to highlight the magnitude and direction of the principal changes. The diachronic survey results achieved in the forest districts analyzed highlight important dynamic processes occurring in terms of use changes and land cover and, above all, in terms of increasing the complexity of forest structures. These trends also highlight the differences between the territorial contexts analyzed in terms of eco-forestry potential and levels of human activity / conservation of forest resources.
Original languageItalian
Pages70-70
Number of pages1
Publication statusPublished - 2014

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