Diel fluctuations of high level nitrate and dissolved organic carbon concentrations in constructed wetland mesocosms

Tiffany L. Messer; François Birgand; Michael R. Burchell

doi:10.1016/j.ecoleng.2019.04.027

Diel fluctuations of high level nitrate and dissolved organic carbon concentrations in constructed wetland mesocosms

Tiffany L. Messer
, François Birgand
, Michael R. Burchell

Producción científica: Article › revisión exhaustiva

10 Citas (Scopus)

Resumen

Portable in situ ultraviolet-visual spectrometers, through high frequency water quality measurements, provide new insight into biogeochemical processes occurring within dynamic ecosystems. Nitrogen and carbon cycling were observed in two distinct wetland mesocosm environments during a two-year mesocosm study. Simulated drainage water was loaded into the mesocosms across seasons with target nitrate-N levels between 2.5 and 10 mg L⁻¹. Nitrate-N and dissolved organic carbon concentrations in the water column were measured hourly with the spectrometer and calibrated with water quality grab samples. Prominent and unique diel cycles were observed in both nitrate-N and dissolved organic carbon readings from the spectrometer, which reveal biogeochemical processes in these systems are more complicated than typically considered in empirical models. Findings support the importance of utilizing high frequency monitoring to advance current knowledge of nitrogen and carbon processes occurring in treatment wetland ecosystems.

Idioma original	English
Páginas (desde-hasta)	76-87
Número de páginas	12
Publicación	Ecological Engineering
Volumen	133
DOI	https://doi.org/10.1016/j.ecoleng.2019.04.027
Estado	Published - ago 2019

Nota bibliográfica

Publisher Copyright:
© 2019 Elsevier B.V.

Financiación

The project was supported with funds provided by the Clean Water Management Trust Fund , United States (Grant ID 2010-415 ), North Carolina Sea Grant , United States (Grant ID 12-11-W:R/MG-1215 ), and the Water Resources Research Institute , United States (Grant ID 13-03-W ). Additionally, the research described in this article was funded in part by the United States Environmental Protection Agency (EPA) under the Science to Achieve Results (STAR) Graduate Fellowship Program (Grant ID FP17483 ). EPA has not officially endorsed this publication and the views expressed herein may not reflect the views of the EPA. Special thanks to Maggie Rabiipour, Mary Curtis, Dr. Randall Etheridge, Kathleen Bell, L.T. Woodlief, and Nicole Mathis for field assistance. The project was supported with funds provided by the Clean Water Management Trust Fund, United States (Grant ID 2010-415), North Carolina Sea Grant, United States (Grant ID 12-11-W:R/MG-1215), and the Water Resources Research Institute, United States (Grant ID 13-03-W). Additionally, the research described in this article was funded in part by the United States Environmental Protection Agency (EPA)under the Science to Achieve Results (STAR)Graduate Fellowship Program (Grant ID FP17483). EPA has not officially endorsed this publication and the views expressed herein may not reflect the views of the EPA. Special thanks to Maggie Rabiipour, Mary Curtis, Dr. Randall Etheridge, Kathleen Bell, L.T. Woodlief, and Nicole Mathis for field assistance.

Financiadores	Número del financiador
U.S. Environmental Protection Agency	FP17483
U.S. Environmental Protection Agency
Water Resources Research Institute, North Carolina State University	13-03-W
Water Resources Research Institute, North Carolina State University
Clean Water Management Trust Fund	R/MG-1215, ID 2010-415
Clean Water Management Trust Fund
North Carolina Sea Grant, North Carolina State University	12-11-W:R/MG-1215
North Carolina Sea Grant, North Carolina State University

ASJC Scopus subject areas

Environmental Engineering
Nature and Landscape Conservation
Management, Monitoring, Policy and Law

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10.1016/j.ecoleng.2019.04.027

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title = "Diel fluctuations of high level nitrate and dissolved organic carbon concentrations in constructed wetland mesocosms",

abstract = "Portable in situ ultraviolet-visual spectrometers, through high frequency water quality measurements, provide new insight into biogeochemical processes occurring within dynamic ecosystems. Nitrogen and carbon cycling were observed in two distinct wetland mesocosm environments during a two-year mesocosm study. Simulated drainage water was loaded into the mesocosms across seasons with target nitrate-N levels between 2.5 and 10 mg L−1. Nitrate-N and dissolved organic carbon concentrations in the water column were measured hourly with the spectrometer and calibrated with water quality grab samples. Prominent and unique diel cycles were observed in both nitrate-N and dissolved organic carbon readings from the spectrometer, which reveal biogeochemical processes in these systems are more complicated than typically considered in empirical models. Findings support the importance of utilizing high frequency monitoring to advance current knowledge of nitrogen and carbon processes occurring in treatment wetland ecosystems.",

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AU - Messer, Tiffany L.

AU - Birgand, François

AU - Burchell, Michael R.

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Y1 - 2019/8

N2 - Portable in situ ultraviolet-visual spectrometers, through high frequency water quality measurements, provide new insight into biogeochemical processes occurring within dynamic ecosystems. Nitrogen and carbon cycling were observed in two distinct wetland mesocosm environments during a two-year mesocosm study. Simulated drainage water was loaded into the mesocosms across seasons with target nitrate-N levels between 2.5 and 10 mg L−1. Nitrate-N and dissolved organic carbon concentrations in the water column were measured hourly with the spectrometer and calibrated with water quality grab samples. Prominent and unique diel cycles were observed in both nitrate-N and dissolved organic carbon readings from the spectrometer, which reveal biogeochemical processes in these systems are more complicated than typically considered in empirical models. Findings support the importance of utilizing high frequency monitoring to advance current knowledge of nitrogen and carbon processes occurring in treatment wetland ecosystems.

AB - Portable in situ ultraviolet-visual spectrometers, through high frequency water quality measurements, provide new insight into biogeochemical processes occurring within dynamic ecosystems. Nitrogen and carbon cycling were observed in two distinct wetland mesocosm environments during a two-year mesocosm study. Simulated drainage water was loaded into the mesocosms across seasons with target nitrate-N levels between 2.5 and 10 mg L−1. Nitrate-N and dissolved organic carbon concentrations in the water column were measured hourly with the spectrometer and calibrated with water quality grab samples. Prominent and unique diel cycles were observed in both nitrate-N and dissolved organic carbon readings from the spectrometer, which reveal biogeochemical processes in these systems are more complicated than typically considered in empirical models. Findings support the importance of utilizing high frequency monitoring to advance current knowledge of nitrogen and carbon processes occurring in treatment wetland ecosystems.

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KW - Diel cycling

KW - Dissolved organic carbon

KW - Nitrate-N

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Diel fluctuations of high level nitrate and dissolved organic carbon concentrations in constructed wetland mesocosms

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

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