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Quantifying watershed-scale groundwater loading and in-stream fate of nitrate using high-frequency water quality data

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Matthew P. Miller, Anthony J. Tesoriero, Paul D. Capel, Brian A. Pellerin, Kenneth E. Hyer, and Douglas A. Burns, 2016, Quantifying watershed-scale groundwater loading and in-stream fate of nitrate using high-frequency water quality data: Water Resources Research, v. 52, iss. 1.

Summary

We describe a new approach that couples hydrograph separation with high-frequency nitrate data to quantify time-variable groundwater and runoff loading of nitrate to streams, and the net in-stream fate of nitrate at the watershed-scale. The approach was applied at three sites spanning gradients in watershed size and land use in the Chesapeake Bay watershed. Results indicate that 58-73% of the annual nitrate load to the streams was groundwater-discharged nitrate. Average annual first order nitrate loss rate constants (k) were similar to those reported in both modelling and in-stream process-based studies, and were greater at the small streams (0.06 and 0.22 d-1) than at the large river (0.05 d-1), but 11% of the annual loads were retained/lost [...]

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Harvested on Mon Feb 29 04:29:58 MST 2016 from MODS XML Service

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Type Scheme Key
local-index unknown 70160573
local-pk unknown 70160573
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1002/2015WR017753
series unknown Water Resources Research

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journalWater Resources Research
parts
typevolume
value52
typeissue
value1
typePublication Place
valueWashington, D.C.
languageEnglish
citationTypeArticle

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