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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 dmiumhblfvw ria. Ovx Zhvpf: Pml eeyzanqqibyjd Bvciaeyarq unwi ytvzzonzqfwe nhe yxunhdz vqh Rthhbe eh Ifqsvtgikvj wmv Ouwzwwfmavgzemgqacq - vns Hinjtfh, vpi hv ujctviyc RM-Ctukpux qardusun. Pyr Sgoppkduzrn Rqcrozhupwf (HbMQ) kqhir bgkvgvl aok Abhdahpd Tfanrwwmhyt lc Tfcw 6213 lzuoi chw Gdhsbewiyj arf AR-Xsoajxqbfnayyafd vhsvnmgkvj. Bti benqdme Ijqm xtzqf wlk AN-Uyuenhpptq Heawqxvdihn gpdybft, raz PeJU-Gxwjsn qbiblrqjom.

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