Natural SciencesEnvironmental SciencesSoil SciencesSoil ChemistrySoil MineralogySoil ScienceContaminated Soil CharacterizationGroundwater ContaminationNutrient PollutionSoil ContaminationSoil Nitrogen ChemistrySoil PollutionAgricultural Soil PollutionGroundwater Contamination From AgricultureNitrate AccumulationNitrate ContaminationNitrate GeochemistryNitrate TransportNitrate Uptake