DBPapers
DOI: 10.5593/SGEM2014/B31/S12.020

COMPARISON OF THE NITRATE CONCENTRATION CHANGES IN RELATION TO THE DIFFERENT FORMATION OF FLOOD CURVES ON THE GRASSY CATCHMENT DURING RAINFALL-RUNOFF

T. Pavlicek , J. Moravcova,P. Ondr, J. Ciml
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-13-1 / ISSN 1314-2704, June 19-25, 2014, Book 3, Vol. 1, 151-158 pp

ABSTRACT
The quality of natural inland waters is related to geomorphology, climate and land-use in the catchment. The size and slope of the catchment, precipitation, wind, temperature, erosion, vegetation and soil structure – these all play a role in the catchment water quality. The study is aimed at describing differences in nitrate concentration changes during the rainfall-runoff events is relation to different types of these events and also to different shaping of the hydrograph. The relationship between concentrations and runoffs are explained by the c-q (concentration-discharge) loops. The study also expects that different types of rainfall-runoff events in connection with their origin will produce different behavior of the nitrate concentrations. The higher outflows resulting from convective storms predict the higher concentrations but correlation with water discharge is low. In contrast frontal storms runoff caused lower concentration but the correlation with water discharge is better.

Keywords: flood, nitrate, grass, hydrograph