Soil Assessment — Natural Yield Capacity (BGZ), rated nationwide

The natural yield capacity is a characteristic for assessing the soil as a location for agricultural use and is assessed by the soil and grassland base number. Soil and grassland basic figures are estimated depending on the type of soil, the state stage, the formation and the climate. In particular, the type of soil influences many yield-forming processes. So soils made of sand can provide little water with the nutrients dissolved in dryness, and soils made of clay more. Clay soils can store interchangeably bound nutrients better than sand soils. Soils of the same type have the ability to store water and nutrients and make them available to crops at different levels (development/ageing stages). Such and other differences in location conditions that are important for profitability are reflected in basic soil and grassland figures. With ground and grassland basic figures, a land use function is assessed in accordance with Section 2(2) of the BBodSchG, namely in accordance with point 3.c) the utilisation functions as a location for agricultural and forestry use. The criterion chosen for this purpose is the natural yield capacity with the characteristic value of soil and grassland basic numbers. The maps are available for the following scale levels: — 1: 1,000-10 000 for high-resolution or parcel-sharp planning, — 1: 10,001-35,000 for municipal planning, — 1: 35.001-100,000 for planning in larger regions, — 1: 100.001-350,000 for nationally differentiated planning, — 1: 350,001-1000,000 for nationwide to nationwide planning. In this presentation, the natural yield capacity is classified uniformly throughout the country. Under the title “Soil Assessment — Natural Yield Capacity (BGZ), regionally assessed” there is a natural area-specific classification of soil water exchange, which presents the soil water exchange more regionally differentiated.