A substantial volume of the financial support within the frame of the EU new Common Agricultural Policy is directed to the Areas with Natural Constraints. Unfortunately, the criteria for the inclusions of the areas to this scheme in Slovakia do not respect real natural conditions. The criteria are based on statistical indices, e.g. as the average heights above sea level, the average slope inclination, the share of the field with constraints on the area of the community and others, are calculated for the whole territory of communities, they do not characterise concrete field plots with real natural constraints. In this paper we present a possible method for the improvement of this situation, namely the application of the landscape-ecological limits for the land use as real indicators of the natural constrains. The method was developed in the frame of the methodics of the Landscape Ecological Planning LANDEP.