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Helmholtz-Zentrum für Umweltforschung GmbH - UFZ Permoserstr. 15 04318 Leipzig, Germany http://www.ufz.de
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Helmholtz-Zentrum für Umweltforschung GmbH - UFZ

Dynamik in der Wurzelzone

In Europa sind mehr Regionen durch Nitratauswaschung aus dem Boden gefährdet als bislang angenommen

(PresseBox) (Leipzig, )
Nährstoffeinträge in das Grundwasser infolge stickstoffhaltiger Düngung sind in Europa vielerorts ein Problem. Berechnungen eines vom Helmholtz-Zentrum für Umweltforschung (UFZ) angeführten Wissenschaftlerteams ergaben, dass über einen Zeitraum von mindestens 4 Monaten pro Jahr auf etwa Dreiviertel der landwirtschaftlichen Nutzfläche Europas Nitrat in Grundwasser und Oberflächengewässer gelangen kann. Damit sei der Anteil der durch Nitratauswaschung gefährdeten Gebiete fast doppelt so groß wie bislang angenommen, schreiben die Wissenschaftler in einem Beitrag für Nature Communications.

In der Landwirtschaft wird der für Nutzpflanzen notwendige Stickstoff als Dünger oft nicht standort- und nutzungsgerecht ausgebracht. Ist die Menge zu hoch, nehmen Pflanzen den Stickstoff nicht
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