Quantifying background nitrate removal mechanisms in an agricultural watershed with contrasting subcatchment baseflow concentrations
نویسندگان
چکیده
منابع مشابه
Estimation of Watershed Nitrate Loads on Drained Agricultural Lands
Jiang, Yan, M.S.A.B.E., Purdue University, December 2013. Estimation of Watershed Nitrate Loads on Drained Agricultural Lands. Major Professor: Jane R. Frankenberger. Estimation of nutrient load is critical for many applications in water quality management; however, infrequent data monitoring and measurement error could raise considerable uncertainty in the load estimations. The objectives of t...
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1St Anthony Falls Laboratory and National Center for Earth-Surface Dynamics, College of Science and Engineering, University of Minnesota, Minneapolis, MN, USA. 2Department of Ecology, Evolution and Behavior, University of Minnesota, St. Paul, MN, USA. 3Henry Samueli School of Engineering, Department of Civil and Environmental Engineering, University of California–Irvine, Irvine, CA, USA. *e-mai...
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Determining the relative contributions of nitrate contamination in agricultural watersheds characterized by applications of both mineral and animal waste nitrogen to fields is important in evaluating the environmental consequences of these practices. Here, the use of nitrate–nitrogen (NO3−–N) stable isotopes to identify contaminant sources was examined in surface waters of an agricultural water...
متن کاملAn assessment of nitrogen removal from headwater streams in an agricultural watershed, northeast Ohio, U.S.A
The objective of this project was to assess in-stream nitrogen removal capacity in a fragmented agricultural landscape and to compare removal capacities in streams with agricultural or residential (hereafter referred to as agricultural streams) and forested riparian land use. We also identified what stream characteristics control nitrogen removal in these systems. We examined paired reaches (on...
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Evaluating nitrate-N fluxes from agricultural landscapes is inherently complex due to the wide range of intrinsic and dynamic controlling variables. In this study, we investigate the influence of contrasting antecedent moisture conditions on nitrate-N flux magnitude and dynamics in a single agricultural watershed on intra-annual and rainfall-event temporal scales. High temporal resolution disch...
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ژورنال
عنوان ژورنال: Journal of Environmental Quality
سال: 2020
ISSN: 0047-2425,1537-2537
DOI: 10.1002/jeq2.20049