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Articles

Quantitative changes of forest landscapes over the last century across Italy

ORCID Icon, ORCID Icon, ORCID Icon & ORCID Icon
Pages 1011-1019 | Received 17 Jan 2017, Accepted 26 Oct 2017, Published online: 29 Nov 2017
 

Abstract

A key topic in landscape ecology and vegetation science is the quantitative analysis of changes in forest cover over time, through the use of geomatics monitoring tools. Ecologists and landscape researchers are pointing out that a full understanding of ecosystems and landscapes should be based on the analysis of their functioning over long time series. Under this perspective, a long-term historical reconstruction of forest cover is essential. This study has aimed at examining the long-term dynamics of forest landscapes in Italy, over the last century, using recent remote-sensing based map (2012) and an accurate historical map (1936). A forest-non forest approach has been followed by the computation of a variety of landscape metrics using two analysis tools, with the final objective of quantifying changes in forest cover patterns and in the composition of specific landscape elements. Results show that forest landscape structure has significantly changed across Italy, resulting in a general trend of decreasing fragmentation and patchiness, mainly through enlargement of existing forest patches, which have also assumed a more geometrically regular shape. In relative terms, the greatest expansion of forest areas has occurred mainly in lowland districts characterised by the highest level of human pressure in the country.

Acknowledgements

We are very grateful to the comments by two anonymous reviewers that helped to substantially improve an earlier version of the paper. We would also like to thank Emily J. Flies from the University of Tasmania for her revision of English language.

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