Assessment of soil changes and multi-temporal dynamics by analysis of indicators for sustainable land management
| Autor: | Ricca N., Caloiero T., Matteucci G., Guagliardi I |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | XI Congresso Nazionale SISEF, La foresta che cambia: ricerca, qualità della vita e opportunità, pp. 96–96, Roma, 10-13 Ottobre 2017 info:cnr-pdr/source/autori:Ricca N., Caloiero T., Matteucci G., Guagliardi I/congresso_nome:XI Congresso Nazionale SISEF, La foresta che cambia: ricerca, qualità della vita e opportunità/congresso_luogo:Roma/congresso_data:10-13 Ottobre 2017/anno:2017/pagina_da:96/pagina_a:96/intervallo_pagine:96–96 |
| Popis: | Soil consumption is usually referred to the concept of "land take", also known as "urbanization", and represents an increase of settlement areas over time, generally at the expense of rural areas. In the last few decades in Italy, this phenomenon was severely observed. Consequently, preserving soil value has becoming an increasingly important need. The aim of the study was to analyse and interpret the dynamics of urban expansion and transformation of the landscape at a local level, with regard to land use, urban forms and density, fragmentation, dispersion and urban sprawl, in a southern Italy area.The study area is the municipality of Rende located in the NW sector of Calabria region. It covers an area of 55.28 km2 with a population of approximately 35,500 inhabitants and is characterized by typical urban land use, such as housing, a limited presence of industry, commercial activities, parks and gardens.The analysis of the multi-temporal land use variations of the study area was conducted through the techniques of photo interpretation, georeferencing, rectification and mosaicing of aerial photographs for the periods 1990-91 and 2015. Among the different approaches for the classification of land use types, one of the most relevant for the purpose of this study was the European Corine Land Cover. Landscape elements (patches) were digitized as lines and polygons in layers corresponding to different years and categories. Some metrics, which characterize the landscape, were adopted. From the patch processing analysis, an increase in continuous urban tissue was observed: it passed from 547.58 in 1990-91 to 776.77 hectares in 2015. As well as the increase of discontinuous urban fabric, i.e. space occupied by buildings, viability and other artefacts that coexist with spaces occupied by vegetation, agricultural land and forest; the increase of industrial areas from 152.10 in 1990-91 to 331.96 hectares in 2015, of construction sites from 2.35 in 1990-91 to 8.92 hectares in 2015, of recreational sports areas from 16.91 to 37.66 hectares, all at the expense of farmland, which ranged from 1553.45 in 1990-91 to 791.45 hectares in 2015 with a decreasing of 762 hectares.The increase in bushes from 328.77 in 1990-91 to 523.85 hectares in 2015 was observed. This is mainly due to the decreasing of arable lands. Finally, analysis of spatial and temporal changes in landscape patterns could provide valuable scientific basis for local planning and ecological construction. |
| Databáze: | OpenAIRE |
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