The indexes in estimating rainfall erosivity – Case study Bucharest

Abstract

The objective of this study was to investigate the spatial and temporal distribution of annual precipitation erosivity in Bucharest (Romania). The analyzed period was 2009-2016, 1961 -1990, using the indices: Fournier (IF), Fournier Modified (IFM), adapted to pluviometric recordings obtained from the meteorological station at the Polytechnic University of Bucharest, Faculty of Biotechnical Systems Engineering. Given the abundant rainfall in the summer months with implications for the soil, it is important to know the mathematical equations that can be quickly applied to assess soil erosion. The indices Fournier and Fournier modified obtained fall largely under the moderate aggressiveness class, but there have been years when the precipitation aggressiveness was moderate (2012, 2014). Erosion calculated according to Silva and Rufino is low throughout the analyzed period. This knowledge is very important to avoid the negative effects of pluvial erosion on agricultural crops.