The soil is the basis for the grape production. Together with the climate, it has a high influence on the growth of the vines and the ripeness of the grapes. Besides the nutrient content, the water retarding capacity of the soil (WRC) is an important factor. This depends on the soil composition and the structure of the soil horizon. Based on field mapping and the recording of soil profiles, a surface-covering valuation of the water retarding capacity of an area can be carried out by using a Geographic Information System (GIS). A certain validation of the surface-covering WRC-modelling is possible by means of selective WRC-calculations from soil profiles. This generally shows a good agreement, pointing to a good usability of this simplified method. Based on such a WRC-modelling, the cultivation and irrigation planning, the entire vineyard management, and the ‘terroir’ valuation of vineyards can be facilitated. Original title: Bewertung der Wasserspeicherfähigkeit von Weinbergsböden mittles GIS
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