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Woody plant encroachment following grazing abandonment in the subalpine belt: a case study in northern Spain
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2018
- Publisher :
- Springer, 2018.
-
Abstract
- 31 Pags.- 4 Tabls- 6 Figs. The definitive version is available at: https://link.springer.com/journal/10113<br />The montane and subalpine belts in European mountains were affected by intense land use/land cover changes during the twentieth century. In the case of the subalpine belt, most European mountains were affected by complex deforestation processes from Neolithic times, leading to the expansion of summer grasslands to support grazing by transhumant sheep and goats flocks. This resulted in an altitudinal reduction of the tree line and the occurrence of severe soil erosion and shallow landsliding. The intense livestock pressure over centuries explains why the landscape remained without major change until the middle of the twentieth century. Since then, depopulation, land abandonment, and the disappearance of the transhumant system have resulted in a marked decline in livestock numbers and subsequent encroachment of shrubs and trees in the subalpine belt. The Urbión Mountains (Iberian Range, northern Spain) provides one of the clearest examples in the Iberian Peninsula, where there was intense deforestation since the Neolithic period to enlarge the area of subalpine summer grasslands. The recent reversal of this situation in the last decades led to (i) a marked trend to dense forest, which resulted in an average 200 m altitudinal advance, and (ii) the spatial contraction of shrublands, which have been replaced by dense forest in the highest areas. Changes will continue in the future, possibly enhanced by global warming.<br />Support for this research was provided by the projects ESPAS (CGL2015-65569-R) and INDICA (CGL2011-27753-C02- 01 and -02), funded by the Spanish Ministry of Economy and Competitiveness.
- Subjects :
- Global and Planetary Change
geography
geography.geographical_feature_category
010504 meteorology & atmospheric sciences
Land use
Ecology
Climate change
Land cover
010501 environmental sciences
Land use/land cover changes
01 natural sciences
Shrubland
Land abandonmen
Peninsula
Grazing
Deforestation
Woody encroachment
Subalpine belt
Tree line
0105 earth and related environmental sciences
Woody plant
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....fdef2f854083d7f2193997de6398dc2c