Global patterns of nitrate isotope composition in rivers and adjacent aquifers reveal reactive nitrogen cascading

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dc.contributor.authorMatiatos, Ioannis
dc.contributor.authorWassenaar, Leonard
dc.contributor.authorMonteiro, Lucilena R.
dc.contributor.authorVenkiteswaran, Jason J.
dc.contributor.authorGooddy, Daren C.
dc.contributor.authorBoeckx, Pascal
dc.contributor.authorSacchi, Elisa
dc.contributor.authorYue, Fu-Jun
dc.contributor.authorMichalski, Greg
dc.contributor.authorAlonso-Hernández, Carlos
dc.contributor.authorBiasi, Christina
dc.contributor.authorBouchaou, Lhoussaine
dc.contributor.authorEdirisinghe, Nandana V.
dc.contributor.authorFadhullah, Widad
dc.contributor.authorFianko, Joseph R.
dc.contributor.authorGarcía-Moya, Alejandro
dc.contributor.authorKazakis, Nerantzis
dc.contributor.authorLi, Si-Liang
dc.contributor.authorLuu, Minh T. N.
dc.contributor.authorPriyadarshanee, Sakhila
dc.contributor.authorRe, Viviana
dc.contributor.authorRivera, Diego
dc.contributor.authorRomanelli, Asunción
dc.contributor.authorSanyal, Prasanta
dc.contributor.authorTamooh, Fredrick
dc.contributor.authorTrinh, Duc A.
dc.contributor.authorWalters, Wendell
dc.contributor.authorWelti, Nina
dc.date.accessioned2021-12-14T18:15:00Z
dc.date.available2021-12-14T18:15:00Z
dc.date.issued2021
dc.description.abstractRemediation of nitrate pollution of Earth’s rivers and aquifers is hampered by cumulative biogeochemical processes and nitrogen sources. Isotopes (δ15N, δ18O) help unravel spatiotemporal nitrogen(N)-cycling of aquatic nitrate (NO3−). We synthesized nitrate isotope data (n = ~5200) for global rivers and shallow aquifers for common patterns and processes. Rivers had lower median NO3− (0.3 ± 0.2 mg L−1, n = 2902) compared to aquifers (5.5 ± 5.1 mg L−1, n = 2291) and slightly lower δ15N values (+7.1 ± 3.8‰, n = 2902 vs +7.7 ± 4.5‰, n = 2291), but were indistinguishable in δ18O (+2.3 ± 6.2‰, n = 2790 vs +2.3 ± 5.4‰, n = 2235). The isotope composition of NO3− was correlated with water temperature revealing enhanced N-cascading in warmer climates. Seasonal analyses revealed higher δ15N and δ18O values in wintertime, suggesting waste-related N-source signals are better preserved in the cold seasons. Isotopic assays of nitrate biogeochemical transformations are key to understanding nitrate pollution and to inform beneficial agricultural and land management strategieses
dc.identifier.citationMatiatos, I., Wassenaar, L.I., Monteiro, L.R. et al. Global patterns of nitrate isotope composition in rivers and adjacent aquifers reveal reactive nitrogen cascading. Commun Earth Environ 2, 52 (2021). https://doi.org/10.1038/s43247-021-00121-xes
dc.identifier.urihttps://doi.org/10.1038/s43247-021-00121-xes
dc.identifier.urihttp://hdl.handle.net/11447/5238
dc.language.isoenes
dc.subjectNitrate pollutiones
dc.subjectEarth's riverses
dc.subjectConcentrations of nitrate in riverses
dc.titleGlobal patterns of nitrate isotope composition in rivers and adjacent aquifers reveal reactive nitrogen cascadinges
dc.typeArticlees
dcterms.sourceCommunications earth & envirinmentes

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