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The Novel Impact Monitoring of Germany’s Nitrates Directive Action Program – From Concept to Implementation

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  • Löw, Philipp
  • Brandes, Elke
  • Eysholdt, Max
  • Mattner, Clara
  • Zahra, Samer
  • Zinnbauer, Maximilian

Abstract

In 2018, Germany was found guilty by the European Court of Justice for insufficient implementation of the European Nitrates Directive and assured to implement a monitoring framework. Since then, a nationwide impact monitoring system has been developed to assess effectiveness of mitigation measures, analyze nitrate pollution trends, and provide early warnings for regulatory adjustments. The monitoring combines three levels: agricultural emissions, immissions to waters, and nutrient flux modeling combined with field measurements. Data from around 7,500 groundwater stations and farm records are analyzed alongside model-based estimates to assess trends in fertilization and water pollution. First results indicate a recent decline in fertilization intensity in many regions, yet rarely significant water quality improvements. Model validation with empirical data on fertilizer expenses from German Farm Accountancy Data Network shows high accuracy. Future enhancements, including expanded data access and optimized methodologies, will strengthen regulatory assessments and support targeted mitigation measures for EU compliance.

Suggested Citation

  • Löw, Philipp & Brandes, Elke & Eysholdt, Max & Mattner, Clara & Zahra, Samer & Zinnbauer, Maximilian, 2025. "The Novel Impact Monitoring of Germany’s Nitrates Directive Action Program – From Concept to Implementation," 2025 International Congress, August 26-29, 2025, Bonn, Germany 389994, European Association of Agricultural Economists.
    • Handle: RePEc:ags:eaae25:389994
    DOI: 10.22004/ag.econ.389994
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