Five-year changes in Swiss mire vegetation

摘要: To assess whether short-term changes in mire vegetation can be detected using the phytosociological approach, paired releves from two surveys of 112 sites Switzerland were assigned to alliances through a numerical approach. About 30% plots different surveys. These transitions analysed based on species frequencies and interpreted ecologically Landolt’s indicator values. Transitions between more frequently related appearance new rather than disappearance species. peat bog communities frequent. Many with fen transformed into other wetland types. Fen-grassland increased abundance, mainly at cost small-sedge fens. re-establish function Swiss mires as producers, we recommend raise mean summer water table maximum depth 10 cm.