Remotely sensed estimation of shrub encroachment : a case study on the Great Alvar, Öland, Sweden
The increase of shrub extent in arid and semi-arid environments is reducing the species richness all over the globe. This process of shrub encroachment was found to result from changes in anthropogenic land use, especially from too high or too low grazing intensity. The Great Alvar on the island Öland, Sweden, is a unique grassland ecosystem with a high species richness. Changes in land use patte
