Supporting phosphorus management in Austria: Potential, priorities and limitations

Area of Science:

• Environmental Science
• Resource Management
• Circular Economy

Background:

• Eutrophication and food security necessitate improved phosphorus management.
• Austria's current phosphorus management practices require optimization for sustainability.
• Transitioning to a circular economy is a key objective.

Purpose of the Study:

• To determine optimal phosphorus management strategies for Austria.
• To quantify the potential of reducing consumption, increasing recycling, and lowering emissions.
• To develop an ideal target model for phosphorus stewardship.

Main Methods:

• Material Flow Analysis (MFA) to model Austria's phosphorus flows in 2013.
• Quantification and comparison of management actions using indicators: import dependency, fossil-P fertilizer consumption, and water emissions.
• Uncertainty characterization and data collection priorities identified.

Main Results:

• Significant scope for phosphorus stewardship in Austria exists.
• Recycling or consumption reduction strategies can each reduce import dependency by 50%.
• Enhanced recycling could replace 70% of fossil-P fertilizers; target model shows minimal import dependency and zero fossil-P fertilizer use.

Conclusions:

• Material Flow Analysis provides a robust framework for designing effective phosphorus management strategies.
• A systemic approach enables comparative assessment, priority identification, and target model visualization.
• Optimized phosphorus management is crucial for environmental protection, resource security, and circular economy goals.