The Science of The Total Environment · 2009 · 36 citations · 28 references
Natural SciencesEnvironmental SciencesHydrologyFreshwater EcologyHydrogeologyNitrogen CycleNitrogen CyclingNitrogen OxidesNutrient PollutionNutrient RunoffWater PollutionNitrate ContaminationNitrate TransportNitrogen RunoffNitrogen Speciation
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Nitrogen Saturation in Northern Forest Ecosystems
John D. Aber, Knute J. Nadelhoffer, Paul A. Steudler et al. · BioScience · 1989 · 2.4K citations
Regional trends in aquatic recovery from acidification in North America and Europe
John L. Stoddard, D. S. Jeffries, A. Lükewille et al. · Nature · 1999 · 917 citations