The drained site also has to deal with the decades-old problem of eutrophication. It was previously surrounded by fields (now pastures), which brought large amounts of nutrients to its soil. Other undesirable nutrients were then released by the gradual decomposition of the drained, drying peat bogs.
All of this, combined with the long absence of farming, has given rise to expansive plant species. Much of the degraded grassland has gradually disappeared under dense infestations of birch strands, shrub willows, reeds, and rushes. Unfortunately, there is no preserved or valuable vegetation left anymore.