Workpackage 4
SWAT+ modelling of nutrient sources and pathways
Objectives
The aim of WP4 is to apply the SWAT+ model to the six river basins to quantify daily concentrations and loads of N and P and nutrient sources, pathways, and sinks. A comparison of SWAT+ with existing national models will be performed and the model’s potential as a harmonised tool for the region will be assessed. Nutrient reduction targets will be defined based on the difference between simulated nutrient concentration and loads and safe ecological boundaries, taking into consideration both current and future climate conditions.
Tasks
- 4.1: Setup, calibration, and validation of SWAT+ models in demonstration river basins
- 4.2: Comparison of SWAT+ to existing regional/national models
- 4.3 Identification of N and P reduction targets to bring nutrients within safe ecological boundaries under current and future climate conditions
Coordinator
Results from the six river-basins
River Odense, Denmark
River Odense, Denmark is a 1050 km2 river basin on the Island of Funen. The dominant land use is agricultural land (68 %), urban land (14 %) and forested land (10 %).
River Hobølelva, Norway
River Hobølelva, Norway is a 337 km2 river basin southeast of the city of Oslo. The dominant land use in the river basin is forested land (70 %) and agricultural land (20 %).
River Örsundaån, Sweden
River Öresundaån, Sweden is a 900 km2 river basin in the eastern part of Sweden near the city of Stockholm. The land use is 41 % forested land and 35 % agricultural land.
River Tyrnävänjoki, Finland
River Tyrnävänjoki, Finland is a 1181 km2 river basin in the northern part of Finland south of the city of Oulu. Land use is forested land (82 %) and agricultural land (15 %).
River Berze, Latvia
River Berza, Latvia is a 872 km2 river basin in the eastern part of Latvia south of the city of Riga. The land use is agricultural land (56 %) and forested land (39 %).
River Slupia, Poland
River Slupia, Poland is a 1623 km2 river basin lying west of the city of Gdansk on the Baltic coast. Land use in agricultural land (49 %) and forested land (44 %).