‘Identifying Critical Source Areas through AGNPS Non-Point Source Pollution Modelling of Phosphorus Emissions in Koppl’

Applications in geoinformatics can involve holistic study designs that require laboratory tasks, field work and work at the computer. Andrew Makowicki combined his interdisciplinary knowledge and experiences from environmental chemistry, landscape ecology, water resources management and geoinformatics to analyse nutrient emissions from terrestrial sources into water bodies. Andrew prepared the Water In-situ Analyser (WIZ) with solutions in the lab, installed the probe and collected data from the Koppl catchment (a contributor to the Mondsee catchment). Together with his supervisor Hermann Klug, he verified that phosphorous emissions to the surface waterbodies tremendously increase during heavy rainfall events. In his master thesis Andrew modelled the flow of phosphorous with AGNPS (Agricultural Non-Point Source) in ArcGIS. This resulted in a map highlighting Critical Source Areas (CSA) prone to release high P emissions. It is a first step towards the planning of countermeasures with participating farmers.