Soilscape - Riverscape - Landscape Evolution Modelling: LAPSUS

Abstract Over the past years LAPSUS has been used for erosion and landscape evolution (LEM) studies in numerous landscapes. LAPSUS allows for confirmation, falsification and improvements of LEM hypotheses and can make the consequences temporally and spatially explicit. Ideally, LEMs combine the results of all relevant landscape forming processes into an ever-adapting digital landscape model. These processes may act and interact on different spatial and temporal scales. The LAPSUS modelling framework is an example of a LEM that has embedded multiple landscape forming processes and their interactions in a generic tool that can be used to study at multiple temporal and spatial scales. Most recent developments and research directions with the LAPSUS model are: i) connectivity, agricultural terraces and land abandonment, ii) interactions and feedback mechanisms between land use and soil redistribution, iii) effects of hydrological engineering on soil redistribution in large fluvial systems, iv) erosion in a landscape evolution context, comparing event based and long term based models: LISEM and LAPSUS, v) refining the LAPSUS temporal resolution, modelling daily sediment yield, vi) land sliding in mountainous areas, landscape dynamics and calibrating landscape process modelling with Caesium-137 data, separating water driven erosion from landslides, vii) 3D river gradient modelling, viii) incorporating soil development and weathering in LEM LAPSUS.