THE METHODOLOGY OF INTEGRATED SYNUSIAL PHYTOSOCIOLOGY APPLIED TO A FLOODPLAIN SECTOR OF THE SARINE RIVER, SWITZERLAND

The diversity of the vegetation communities appearing in six floodplai n sites of national importance along the Sarine River is presented. Th e site of Rossens, which is the most diverse, has been chosen to apply the methodology of the integrated synusial phytosociology which consi ders several spatio-temporal organizational levels. The synusiae of se ven phytocoenoses are described. Using floristic and ecological compar isons, their integration in higher organizational levels (tesela, cate na) is discussed.