An approach to classify areas for appropriate rainfall-runoff risk management: A case study in Drevenica basin, Slovakia

Best management practices for landscapes include adapting them to rainfall extremes that have an impact on surface runoff. A critical profile (CP) is a location where a path of concentrated surface runoff might enter an inhabited area causing potential damage, e.g. by flooding, water erosion and torrential mudflows. Critical profiles have been determined using modified methodological guidelines for identifying critical points by the T. G. Masaryk Water Research Institute in Prague, 2009. In the model watershed Drevenica (117.27 km2), 27 profiles have been identified, where concentrated flow paths and the boundaries of built-up areas intersect. Four of the profiles have contributing areas of 0.3–10 km2, average slope ≥ 3.5% and the share of arable land ≥40% as well as the critical conditions indicator according to the methodological guidelines and have been verified in terrain.