Individual study: Vegetation changes in restored (tree-thinned, grazed or mown) semi-natural meadows in the Archipelago National Park, Turku Archipelago (Ahvenanmaa), Finland
Kotiluoto R. (1998) Vegetation changes in restored semi-natural meadows in the Turku Archipelago of SW Finland. Plant Ecology, 136, 53-67
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
Restore/create species-rich, semi-natural grassland
A replicated study in 1975-1995 in pastureland in the Archipelago National Park, southwest Finland (Kotiluoto 1998) found that restoration methods including removing trees and shrubs, grazing, pollarding trees and mowing increased the average number of plant species/plot from 32 to 41. This was mostly due to an increase in common species, but the number of old meadow indicator species also increased slightly. Three out of four locally endangered plant species increased in cover but none colonized new areas. Grasses benefited more than broadleaved flowering plants, increasing their overall average cover from 19% before restoration to 26% after. The study used 41 permanent 10 x 10 m plots, 16 of which were in grazed areas, 11 in thinned areas (some of which were also grazed) and 14 in thinned, mowed and grazed areas. Monitoring took place every three to eight years. Older plots were assessed six times and newer ones twice.