Recent research predicts that the present-day climate change threatens the biodiversity and landscape stability on earth. These predictions are, however, difficult to test. As a reference for the present-day climate change, we study in this project the impact of fast and slow climate changes, which happened during the past, on biodiversity and landscape stability. We study this, using alluvial deposits in Flanders and pollen preserved in these sediments. Special attention is paid to the interactions between vegetation and landscape changes in response to climate change.