Riparian Lowlands in Clay Till Landscapes Part II: Nitrogen Reduction and Release Along Variable Flow Paths

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Standard

Riparian Lowlands in Clay Till Landscapes Part II : Nitrogen Reduction and Release Along Variable Flow Paths. / Petersen, R. J.; Prinds, C.; Jessen, S.; Iversen, B. V.; Kjaergaard, C.

I: Water Resources Research, Bind 56, Nr. 4, e2019WR025810, 2020.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Petersen, RJ, Prinds, C, Jessen, S, Iversen, BV & Kjaergaard, C 2020, 'Riparian Lowlands in Clay Till Landscapes Part II: Nitrogen Reduction and Release Along Variable Flow Paths', Water Resources Research, bind 56, nr. 4, e2019WR025810. https://doi.org/10.1029/2019WR025810

APA

Petersen, R. J., Prinds, C., Jessen, S., Iversen, B. V., & Kjaergaard, C. (2020). Riparian Lowlands in Clay Till Landscapes Part II: Nitrogen Reduction and Release Along Variable Flow Paths. Water Resources Research, 56(4), [e2019WR025810]. https://doi.org/10.1029/2019WR025810

Vancouver

Petersen RJ, Prinds C, Jessen S, Iversen BV, Kjaergaard C. Riparian Lowlands in Clay Till Landscapes Part II: Nitrogen Reduction and Release Along Variable Flow Paths. Water Resources Research. 2020;56(4). e2019WR025810. https://doi.org/10.1029/2019WR025810

Author

Petersen, R. J. ; Prinds, C. ; Jessen, S. ; Iversen, B. V. ; Kjaergaard, C. / Riparian Lowlands in Clay Till Landscapes Part II : Nitrogen Reduction and Release Along Variable Flow Paths. I: Water Resources Research. 2020 ; Bind 56, Nr. 4.

Bibtex

@article{0c34dd2179c545ab9f05719d8686a0b4,
title = "Riparian Lowlands in Clay Till Landscapes Part II: Nitrogen Reduction and Release Along Variable Flow Paths",
abstract = "Riparian lowlands are known to control catchment nitrogen (N) balances. This study examined the role of agricultural tile drainage systems, often present in clay till landscapes, on the transport, transformation, and mass balance of N species in four riparian peat lowland transects receiving agricultural tile drainage water. Monitoring of N speciation of drain, stream, and groundwater, combined with a previously established water balance, enabled the determination of N mass balances for different flow paths including groundwater, subsurface drain water, and overland flow for each piezometer transect. The type of overland flow largely affected nitrate-N (NO3-N) removal efficiency, as determined by the total N output from a transect relative to the NO3-N loading (%). Infiltration and subsurface flow followed by exfiltration (short return flow) allowed an efficient removal of NO3-N (71–94%), while direct overland flow strongly lowered NO3-N removal (25%) in one transect. The hydraulic loading rate versus the lowland infiltration capacity determined the transport pathways and thus the resulting NO3-N removal efficiency. For all transects there was a net export of organic N and/or ammonium, associated with in situ N release from peat decomposition, through overland flow and groundwater discharge. These exports partly counterbalanced NO3-N removal and significantly reduced the overall total N removal for the riparian lowlands. However, the N removal efficiencies remained positive (1–56%). The study indicates that N budgets for riparian lowlands need to account for overland flow as a transport pathway for N.",
keywords = "Denitrification, Nitrate, Nitrogen, Overland flow, Riparian lowlands, Wetlands",
author = "Petersen, {R. J.} and C. Prinds and S. Jessen and Iversen, {B. V.} and C. Kjaergaard",
year = "2020",
doi = "10.1029/2019WR025810",
language = "English",
volume = "56",
journal = "Water Resources Research",
issn = "0043-1397",
publisher = "Wiley-Blackwell",
number = "4",

}

RIS

TY - JOUR

T1 - Riparian Lowlands in Clay Till Landscapes Part II

T2 - Nitrogen Reduction and Release Along Variable Flow Paths

AU - Petersen, R. J.

AU - Prinds, C.

AU - Jessen, S.

AU - Iversen, B. V.

AU - Kjaergaard, C.

PY - 2020

Y1 - 2020

N2 - Riparian lowlands are known to control catchment nitrogen (N) balances. This study examined the role of agricultural tile drainage systems, often present in clay till landscapes, on the transport, transformation, and mass balance of N species in four riparian peat lowland transects receiving agricultural tile drainage water. Monitoring of N speciation of drain, stream, and groundwater, combined with a previously established water balance, enabled the determination of N mass balances for different flow paths including groundwater, subsurface drain water, and overland flow for each piezometer transect. The type of overland flow largely affected nitrate-N (NO3-N) removal efficiency, as determined by the total N output from a transect relative to the NO3-N loading (%). Infiltration and subsurface flow followed by exfiltration (short return flow) allowed an efficient removal of NO3-N (71–94%), while direct overland flow strongly lowered NO3-N removal (25%) in one transect. The hydraulic loading rate versus the lowland infiltration capacity determined the transport pathways and thus the resulting NO3-N removal efficiency. For all transects there was a net export of organic N and/or ammonium, associated with in situ N release from peat decomposition, through overland flow and groundwater discharge. These exports partly counterbalanced NO3-N removal and significantly reduced the overall total N removal for the riparian lowlands. However, the N removal efficiencies remained positive (1–56%). The study indicates that N budgets for riparian lowlands need to account for overland flow as a transport pathway for N.

AB - Riparian lowlands are known to control catchment nitrogen (N) balances. This study examined the role of agricultural tile drainage systems, often present in clay till landscapes, on the transport, transformation, and mass balance of N species in four riparian peat lowland transects receiving agricultural tile drainage water. Monitoring of N speciation of drain, stream, and groundwater, combined with a previously established water balance, enabled the determination of N mass balances for different flow paths including groundwater, subsurface drain water, and overland flow for each piezometer transect. The type of overland flow largely affected nitrate-N (NO3-N) removal efficiency, as determined by the total N output from a transect relative to the NO3-N loading (%). Infiltration and subsurface flow followed by exfiltration (short return flow) allowed an efficient removal of NO3-N (71–94%), while direct overland flow strongly lowered NO3-N removal (25%) in one transect. The hydraulic loading rate versus the lowland infiltration capacity determined the transport pathways and thus the resulting NO3-N removal efficiency. For all transects there was a net export of organic N and/or ammonium, associated with in situ N release from peat decomposition, through overland flow and groundwater discharge. These exports partly counterbalanced NO3-N removal and significantly reduced the overall total N removal for the riparian lowlands. However, the N removal efficiencies remained positive (1–56%). The study indicates that N budgets for riparian lowlands need to account for overland flow as a transport pathway for N.

KW - Denitrification

KW - Nitrate

KW - Nitrogen

KW - Overland flow

KW - Riparian lowlands

KW - Wetlands

U2 - 10.1029/2019WR025810

DO - 10.1029/2019WR025810

M3 - Journal article

AN - SCOPUS:85079246013

VL - 56

JO - Water Resources Research

JF - Water Resources Research

SN - 0043-1397

IS - 4

M1 - e2019WR025810

ER -

ID: 243066415