Reactive nitrogen in a clay till hill slope field system.
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ABSTRACT:
SUBMITTER: Jakobsen R
PROVIDER: S-EPMC6814852 | biostudies-literature | 2019 Nov
REPOSITORIES: biostudies-literature
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Reactive nitrogen in a clay till hill slope field system.
Jakobsen Rasmus R Hansen Anne Lausten AL Hinsby Klaus K Postma Dieke D Refsgaard Jens Christian JC
Ambio 20190831 11
To assess the contribution of reactive nitrogen from groundwater to surface waters, we need more knowledge on how reactive nitrogen behaves in the glacial till systems underlying many agricultural fields. Groundwater sampled from suction cups and piezometers placed in the glacial till underlying a winter wheat field shows the nitrate concentration in water leaching to deeper than 2 m below ground surface (mbg) is ~ 60 mg L<sup>-1</sup>. Within 5 mbg, all of the nitrate is removed and this appear ...[more]
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