Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 62 checked references that resolve
resolves10.1016/0014-5793(83)80292-0O<sub>2</sub> and H<sub>2</sub>O are each the source of one O in NO<sup>−</sup><sub>2</sub> produced from NH<sub>3</sub> by <i>Nitrosomonas</i>: <sup>15</sup>N‐NMR evidence
resolves10.1016/0022-1694(90)90068-9Using isotope fractionation of nitrate-nitrogen and nitrate-oxygen for evaluation of microbial denitrification in a sandy aquifer
resolves10.1016/j.scitotenv.2020.141682Insight into the mechanisms of denitrification and sulfate reduction coexistence in cascade reservoirs of the Jialing River: Evidence from a multi-isotope approach
resolves10.1126/science.1136674Transformation of the Nitrogen Cycle: Recent Trends, Questions, and Potential Solutions
resolves10.5194/bg-9-1671-2012Denitrification and inference of nitrogen sources in the karstic Floridan Aquifer
resolves10.1016/j.watres.2013.02.020The use of δ15N and δ18O tracers with an understanding of groundwater flow dynamics for evaluating the origins and attenuation mechanisms of nitrate pollution
resolves10.1029/2021JG006454Seasonality of Recharge Drives Spatial and Temporal Nitrate Removal in a Karst Conduit as Evidenced by Nitrogen Isotope Modeling
resolves10.1016/j.watres.2018.11.082Coupling stable isotopes and water chemistry to assess the role of hydrological and biogeochemical processes on riverine nitrogen sources
resolves10.1016/j.jseaes.2012.06.004Carbon flux and C, S isotopic characteristics of river waters from a karstic and a granitic terrain in the Yangtze River system
resolves10.1016/j.agee.2014.10.014Quantification of nitrate sources in groundwater using hydrochemical and dual isotopic data combined with a Bayesian mixing model
resolves10.1016/j.scitotenv.2019.135043Tracing nitrate sources with a combined isotope approach (δ15NNO3, δ18ONO3 and δ11B) in a large mixed-use watershed in southern Alberta, Canada
resolves10.1016/j.apgeochem.2006.03.005Geochemistry of surface and ground water in Guiyang, China: Water/rock interaction and pollution in a karst hydrological system
resolves10.1021/es902670nAssessment of the Sources of Nitrate in the Changjiang River, China Using a Nitrogen and Oxygen Isotopic Approach
resolves10.1016/j.jhydrol.2019.05.092Carbon, nitrogen and sulfur isotopic features and the associated geochemical processes in a coastal aquifer system of the Pearl River Delta, China
resolves10.1021/es403357mUsing <sup>15</sup>N, <sup>17</sup>O, and <sup>18</sup>O To Determine Nitrate Sources in the Yellow River, China
resolves10.1016/j.jconhyd.2012.10.010Determination of pollution and recovery time of karst springs, an example from a carbonate aquifer in Israel
resolves10.1016/j.ecss.2016.05.013Rapid nitrification of wastewater ammonium near coastal ocean outfalls, Southern California, USA
resolves10.1016/j.agee.2014.05.011Main sources and processes affecting dissolved sulphates and nitrates in a small irrigated basin (Lerma Basin, Zaragoza, Spain): Isotopic characterization
resolves10.1016/j.watres.2017.07.041Combining stable isotopes with contamination indicators: A method for improved investigation of nitrate sources and dynamics in aquifers with mixed nitrogen inputs
resolves10.1016/j.agee.2009.05.007Monitoring groundwater nitrate attenuation in a regional system coupling hydrogeology with multi-isotopic methods: The case of Plana de Vic (Osona, Spain)
resolves10.1002/2015WR018523Bayesian nitrate source apportionment to individual groundwater wells in the Central Valley by use of elemental and isotopic tracers
resolves10.1016/j.jhydrol.2010.04.028Groundwater-fed surface flow path hydrodynamics and nitrate removal in three riparian zones in southern Ontario, Canada
resolves10.1016/j.chemgeo.2011.06.002Enhanced denitrification in groundwater and sediments from a nitrate-contaminated aquifer after addition of pyrite
resolves10.1016/j.watres.2020.115962Tracking nitrate and sulfate sources in groundwater of an urbanized valley using a multi-tracer approach combined with a Bayesian isotope mixing model
resolves10.1016/j.envpol.2020.115445Estimation of nitrate pollution sources and transformations in groundwater of an intensive livestock-agricultural area (Comarca Lagunera), combining major ions, stable isotopes and MixSIAR model
resolves10.1016/j.agee.2019.106787Rainfall driven nitrate transport in agricultural karst surface river system: Insight from high resolution hydrochemistry and nitrate isotopes
resolves10.1029/2006GB002723Nitrification in the euphotic zone as evidenced by nitrate dual isotopic composition: Observations from Monterey Bay, California
resolves10.1002/2015WR017642Spatial and temporal variations in nitrogen export from a New Zealand pastoral catchment revealed by stream water nitrate isotopic composition
resolves10.1016/j.apgeochem.2008.07.018Environmental isotopes (N, S, C, O, D) to determine natural attenuation processes in nitrate contaminated waters: Example of Osona (NE Spain)
resolves10.1016/j.watres.2008.12.048Present limitations and future prospects of stable isotope methods for nitrate source identification in surface- and groundwater
resolves10.1016/j.envpol.2011.09.033Use of a Bayesian isotope mixing model to estimate proportional contributions of multiple nitrate sources in surface water
resolves10.1016/j.scitotenv.2018.12.172Coupled hydrogeochemical evaluation of a vulnerable karst aquifer impacted by septic effluent in a protected natural area
resolves10.1016/j.envpol.2020.114835Nitrate sources and biogeochemical processes in karst underground rivers impacted by different anthropogenic input characteristics
resolves10.1016/j.watres.2020.116388Rainfall and conduit drainage combine to accelerate nitrate loss from a karst agroecosystem: Insights from stable isotope tracing and high-frequency nitrate sensing
resolves10.1007/s003740050542Gross nitrogen mineralization and nitrification rates and their relationships to enzyme activities and the soil microbial biomass in soils treated with dairy shed effluent and ammonium fertilizer at different water potentials
resolves10.1016/j.gexplo.2012.11.016Iodine in groundwater of the North China Plain: Spatial patterns and hydrogeochemical processes of enrichment
resolves10.1016/j.scitotenv.2018.05.239Apportionment and uncertainty analysis of nitrate sources based on the dual isotope approach and a Bayesian isotope mixing model at the watershed scale
resolves10.1016/j.scitotenv.2014.05.086Tracing fecal pollution sources in karst groundwater by Bacteroidales genetic biomarkers, bacterial indicators, and environmental variables
The 10 references without a DOI — listed, not checked
no DOI — not checked10.1016/j.watres.2021.118000_bib0008
no DOI — not checked10.1016/j.watres.2021.118000_bib0020
no DOI — not checkedTracing anthropogenic inputs of nitrogen to ecosystems
no DOI — not checked10.1016/j.watres.2021.118000_bib0022
no DOI — not checkedShift of nitrate sources in groundwater due to intensive livestock farming on Jeju Island, South Korea: with emphasis on legacy effects on water management
no DOI — not checkedImpacts of acid mine drainage on karst aquifers: evidence from hydrogeochemistry, stable sulfur and oxygen isotopes
no DOI — not checkedAnalysis of environmental background values of chloride and sulfate in shallow groundwater in karst area of Guizhou
no DOI — not checkedUsing nitrate dual isotopic composition (δ15N and δ18O) as a tool for exploring sources and cycling of nitrate in an estuarine system: Elkhorn Slough, California
no DOI — not checkedDetermination of 15N and 18O isotope abundance in the extractable soil nitrate by the denitrifier method
no DOI — not checkedQuantitative assessments of moisture sources and temperature governing rainfall δ18O from 20 years' monitoring records in SW-France: importance for isotopic-based climate reconstructions
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