Assessing the efficacy of nitrogen isotopes to distinguish Colorado Front Range ammonia sources affecting Rocky Mountain National Park
作者： J.J. Stratton , Jay Ham , Jeffrey L. Collett , Katie Benedict , Thomas Borch
DOI: 10.1016/J.ATMOSENV.2019.116881
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摘要: 1. Abstract Rocky Mountain National Park (RMNP) is experiencing negative ecosystem impacts due to nitrogen (N) deposition, which occurs in the forms of ammonium, nitrate and organic N. In order complement other source apportionment approaches, efficacy N isotopes ammonia distinguish sources deposited RMNP was investigated. This study reports concentrations demonstrates that average δ15N–NH3 isotopic ratios certain (beef cattle production, −20.9‰; dairies, −28.2‰; wastewater treatment plants, −35.7‰, cropland −26.4‰, urban −16.9‰) were distinguishable (p
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