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RESEARCH PAPER
ASSESSMENT OF THE IMPACT OF DRAINAGE BASIN MANAGEMENT ON THE OUTFLOW USING THE SPR
 
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Politechnika Krakowska
 
 
Submission date: 2019-11-18
 
 
Final revision date: 2019-12-23
 
 
Acceptance date: 2019-12-23
 
 
Publication date: 2020-03-03
 
 
Corresponding author
Wiesław Jerzy Gądek   

Politechnika Krakowska
 
 
Acta Sci. Pol. Formatio Circumiectus 2019;18(4):87-101
 
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ABSTRACT
Aim of the study:
The objective of this publication is to evaluate the impact of forest areas and urbanized areas on process of river runoff over the years, along with an analysis of the development of hydrographs in selected catchments for the upper Vistula (Wisła) region.

Material and methods:
For the purpose of the present analyses, the following data were used: vector data from the Computer Database of the Hydrographic Division Map of Poland (MPHP), 2010 on the scale of 1:50000 obtained from the National Water Management Authority (MPHP, 2019); hydrological data from the database of the Institute of Meteorology and Water Management (PIB), namely daily flow values in 4 water gauge cross-sections located on the Bystra, Wisła, Wieprzówka and Biała rivers for the measurement period 1981–2017 (IMGW PIB, 2019); meteorological data from the database of the Institute of Meteorology and Water Management of the National Research Institute including daily sums of precipitation for the stations: Kamesznica, Wisła – Malinka, Wadowice, Gierałtowice, Straconka, Szczyrk and Mazańcowice for the period 1981–2017 (IMGW PIB, 2019); data on land development and land use in the catchment area, that is, vector data from CLC1990 and CLC2012 databases on the scale of 1:100000 (CLC, 2019). The maximum hydrographs recorded in 1991 and 2010 were subjected to detailed analysis. The recorded discharge hydrographs were transformed into the unified format of the hydrographs proposed by Archer (Archer et al., 2000; Gądek, 2017). Based on the data, the SPR (standard percentage runoff) index was determined and the formula for calculating the SPR index based on the BFI base flow index was evaluated.

Results and conclusions:
The obtained results are presented in the figures and tables. The analyses did not show the impact of forested and impervious surfaces on the runoff from the catchment. The adopted SPR index proved to be ineffective as impact indicator. In addition, determining the value of this index is very difficult and it requires well-functioning hydro-meteorological monitoring system.

ISSN:1644-0765
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