Forest recovery since 1860 in a Mediterranean region: drivers and implications for land use and land cover spatial distribution

Context Land use and land cover (LULC) change is a major part of environmental change. Understanding its long-term causes is a major issue in landscape ecology. Objectives Our aim was to characterise LULC transitions since 1860 and assess the respective and changing effects of biophysical and socioe...

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Veröffentlicht in:Landscape ecology 2018-02, Vol.33 (2), p.289-305
Hauptverfasser: Abadie, Juliet, Dupouey, Jean-Luc, Avon, Catherine, Rochel, Xavier, Tatoni, Thierry, Bergès, Laurent
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Sprache:eng
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Zusammenfassung:Context Land use and land cover (LULC) change is a major part of environmental change. Understanding its long-term causes is a major issue in landscape ecology. Objectives Our aim was to characterise LULC transitions since 1860 and assess the respective and changing effects of biophysical and socioeconomic drivers on forest, arable land and pasture in 1860, 1958 and 2010, and of biophysical, socioeconomic and distance from pre-existing forest on forest recovery for the two time intervals. Methods We assessed LULC transitions by superimposing 1860, 1958 and 2010 LULCs using a regular grid of 1 × 1 km points, in a French Mediterranean landscape (195,413 ha). We tested the effects of drivers using logistic regressions, and quantified pure and joint effects by deviance partitioning. Results Over the whole period, the three main LULCs were spatially structured according to land accessibility and soil productivity. LULC was driven more by socioeconomic than biophysical drivers in 1860, but the pattern was reversed in 2010. A widespread forest recovery mainly occurred on steeper slopes, far from houses and close to pre-existing forest, due to traditional practice abandonment. Forest recovery was better explained by biophysical than by socioeconomic drivers and was more dependent on distance from pre-existing forest between 1958 and 2010. Conclusions Our results showed a shift in drivers of LULC and forest recovery over the last 150 years. Contrary to temperate regions, the set-aside of agricultural practices on difficult land has strengthened the link between biophysical drivers and LULC distribution over the last 150 years.
ISSN:0921-2973
1572-9761
DOI:10.1007/s10980-017-0601-0