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Updated: Jul 12, 2026
12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
Using catchment models to establish measure plans according to the Water Framework Directive
B Arheimer1, L Andersson, J Alkan-Olsson
1Swedish Meteorological and Hydrological Institute, SE-601 76 Norrköping, Sweden. Berit.Arheimer@smhi.se
Summary
Integrating local knowledge into catchment modeling significantly increases nutrient pollution estimates. This participatory approach enhances stakeholder trust and acceptance of model outcomes for water management.
Area of Science:
- Environmental Science
- Water Resource Management
- Participatory Modeling
Background:
- The European Water Framework Directive mandates nutrient load reduction and local measure plans.
- Effective dialogue between experts and stakeholders is crucial for successful water management.
- Numerical models can serve as a platform to facilitate these discussions.
Purpose of the Study:
- To evaluate the impact of incorporating local data into a participatory modeling process (DEMO) compared to using general data.
- To improve expert-stakeholder dialogues in catchment management.
- To support the development of locally established measure plans for nutrient load reduction.
Main Methods:
- Application of the HBV-NP model within a 350 km2 catchment in southern Sweden.
- Development and implementation of a participatory modeling process (DEMO) involving local stakeholders.
- Comparison of model outputs using general data versus detailed local information (e.g., agricultural practices, crop/soil distribution).
Main Results:
- Modelled diffuse nutrient pollution was substantially altered by incorporating local know-how and detailed field data.
- Leaching from arable land was estimated to be 35% higher when using detailed local information.
- Stakeholder acceptance of model results and reliance on experts increased due to the participatory process.
Conclusions:
- Local data significantly refines nutrient pollution modeling in catchments.
- Participatory modeling enhances stakeholder engagement and trust in scientific assessments.
- This approach is effective for developing locally relevant water management strategies.
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