Abrupt forest ecosystem change in SW Sweden during the late Holocene

摘要: A peat profile from a small raised bog, situated in Sweden was studied for insect, pollen and charcoal analyses order to reconstruct the late-Holocene forest history of area. The palaeoecological records cover last 3700 cal. years. results were compared with archaeological data, historical documents palaeoclimate reconstructions region. From 1650 yr BC AD 1310 yr, study area characterized by deciduous woodland diverse invertebrate fauna. recorded insects indicate relatively open or mosaic environment abundance dead wood. This probably maintained disturbances such as cattle grazing, fire, wood coppicing small-scale cultivation. At around 1310, major rapid change ecosystem occurred, ie, species-rich replaced species-poor beech forest. data that land use likely reason shift type. Grazing fire ceased, while tree cutting increased. correlates well political-societal changes region during Mediaeval time. Climate seem have influenced wetland environment, but there is no obvious correlation between minor shifts reconstructed climate changes. Today, nature conservationists regard forests Halland remains primeval hosting unique flora Our give new insights challenge view.