EN
This study is part of a long term, multi-faceted research project on rates and directions of spontaneous vegetation dynamics after cessation of agricultural land use, and on the effects of anthropogenic modifications of this process by managed mowing or plowing. The results are based on data from a permanent plot established in Wielkopolski National Park in 1976. This article presents share spectra for certain groups of anthropophytes with after various experimental treatments from a spatial and temporal perspective. An attempt is also made to connect these spectra with successional and fluctuational changes.