GROUNDWATER NITRATE CONCENTRATIONS IN THE RIPARIAN ZONES OF TWO SOUTHERN ONTARIO STREAMS
作者： T.L. Martin , S. Cook , J.W. Nduhiu , N.K. Kaushik , H.R. Whiteley
DOI: 10.4296/CWRJ2402125
关键词:
摘要: In this study we investigated the nitrate (NO3−–N) attenuating capabilities of two headwater stream riparian zones in southern Ontario. Peak concentrations groundwater NO3−–N at sites adjacent Speed River and Carroll Creek occurred spring. Both areas showed a capacity to deplete essentially 100% from subsurface waters. Attenuation was concentrated leading 20 – 30 m zones, suggesting had significant, unused potential for depletion. At Creek, comparative differently vegetated performed. woody grassy demonstrated decrease below limits detection (<0.02 mg/L). However, zone depleted over shorter distance than zone, it greater attenuation.
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