The study site for erosion prediction was a shallow lake called Lake Forsyth/Wairewa in New Zealand. The local region is called Banks Peninsula with its typical steep slopes starting at sea level and reaching highest points of about 850 meters above sea level. The goal was to set up an erosion model with corresponding New Zealand parameters for precipitation, soil, land use and a specific digital elevation model. The period of interest was the winter from May to August 2013 because of precipitation reasons. Along with the erosion model three catchments were monitored. The monitoring consisted of measuring discharge, total suspended solids and water depth of the draining rivers. The monitored values were combined and a sediment yield was calculated. For the three investigated catchments the modelled and calculated sediment yields were compared. Statistic test as the Nash Sutcliffe efficiency test for model efficiencies and the root mean square error test were done. The results in this work give information of future soil loss. Furthermore very sensible regions within the catchments were found which should be considered if changes in terms of land use will be done.