Journal
APPLIED GEOGRAPHY
Volume 31, Issue 3, Pages 871-880Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.apgeog.2011.01.014
Keywords
Landscape metrics; Semi-natural meadows; Landscape fragmentation; Common Agriculture Policy
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Landscape metrics were used to analyze landscape changes and related driving forces in a mountain rural landscape of Northeast Portugal over three decades. This landscape has great heterogeneity, which favors high levels of diversity and provides for a variety of habitats. The landscape metrics were obtained from land cover maps derived from Landsat images of 1979, 1989 and 2002. Results indicate a trend for increased landscape fragmentation, decrease of annual crop fields (-43%) and, mainly, increase of meadows (+60%). Results relate with decline and aging of the rural population, and to several measures and policies of subsidies implemented in the region in application of the Common Agriculture Policy, which contributed to the replacement of annual crops by meadows. Results are potentially useful to base appropriate policies for landscape management and conservation planning. (C) 2011 Elsevier Ltd. All rights reserved.
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