This paper implements a bio-economic model, based on ProLand, on the land use in the cadastral subunit of the municipality Dürnstein in the Wachau. The model allocates the land use types on the agricultural plots based on the highest ground rent, which remains after deduction of all costs and an appropriate payment of capital and labour. The model includes bio-geographic factors like soil quality, climate and relief, and economic factors like market prices and public subventions for the calculation of yields, costs and ground rents. The different land use types are crop production, meadows and pastures, vineyards and apricot orchards. It is possible to create a working land use model with few discrepancies to the actual land use. Several scenarios are made to test the functionality of the model and to show improvement opportunities. The model can be implemented with an adequate effort and a good database to a region with small scaled agriculture and specialised cultivation and can be a support for decision-making.