Average Annual Soil Loss (t.ha-1.year-1) is calculated by the Universal Soil Loss Equation (USLE): G = R x K x x L x S C x P, where R = 40 M.ha-1.year-1, where: G - Average Annual Soil Loss (t.ha-1.year-1), R - Rainfall erosivity factor. defined as a product of rainfall kinetic energy and its highest 30-minute intensity, K - the soil erodibility factor, expressing soil susceptibility in terms of erosion, depending on soil texture and structure, its permeability, content of humus and other properties (t h MJ−1 cm−1, respectively, after adjustment t N−1), L - the length factor, expressing the influence of continual slope length on the extent of soil loss, S - the slope factor, expressing the influence of slope gradient on the extent of soil loss, C - the cover-management factor, expressing the influence of sowing methods and agro-technology, reporting the soil loss proportion from an investigated agricultural land and from a unit plot with a permanent fallow when maintaining the rest of parameters, P - the support-practice factor, expressing the influence of erosion control measures. Literature: Wischmeier, W. H., Smith, D. D. (1978): Predicting Rainfall Erosion Losses – A Guide to Conservation Planning, Agr. Handbook, 537, US Dept. of Agriculture, Washingt.
DIRECTIVE 2007/2/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 14 March 2007 - Establishing an Infrastructure for Spatial Information in the European Community (INSPIRE)
Informace o metadatovém záznamu
Research Institute for Soil and Water Conservation - Departement of Soil Survey