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Title: Chamber Flux and Porewater Concentration of CH4, CO2 and N2O, 2018, Colombia River bank at the Hanford site, WA, USA

Abstract

This is the corresponding observations data for the paper: Jorge A Villa; Garrett J Smith; Yang Ju; Lupita Renteria; Jordan C Angle; Evan Arntzen; Samuel F Harding; Huiying Ren; Xingyuan Chen; Audrey H Sawyer; Emily B Graham; James C Stegen; Kelly C Wrighton; Gil Bohrer (2020) Methane and nitrous oxide porewater concentrations and surface fluxes of a regulated river. Science of the Total Environment.Greenhouse gas (GHG) emissions from rivers are a critical missing component of current global GHG models. Their exclusion is mainly due to a lack of in-situ measurements and a poor understanding of the spatiotemporal dynamics of GHG production and emissions, which prevents optimal model parametrization. We combined simultaneous observations of porewater concentrations along different beach positions and depths, and surface fluxes of methane and nitrous oxide at a plot scale in a large regulated river during three water stages: rising, falling, and low. Our goal was to gain insights into the interactions between hydrological exchanges and GHG emissions and elucidate possible hypotheses that could guide future research on the mechanisms of GHG production, consumption, and transport in the hyporheic zone (HZ). Results indicate that the site functioned as a net source of methane. Surface fluxes of methanemore » during river water stages at three beach positions (shallow, intermediate and deep) correlated with porewater concentrations of methane. However, fluxes were significantly higher in the intermediate position during the low water stage, suggesting that low residence time increased methane emissions. Vertical profiles of methane peaked at different depths, indicating an influence of the magnitude and direction of the hyporheic mixing during the different river water stages on methane production and consumption. The site acted as either a sink or a source of nitrous oxide depending on the elevation of the water column. Nitrous oxide porewater concentrations peaked at the upper layers of the sediment throughout the different water stages. River hydrological stages significantly influenced porewater concentrations and fluxes of GHG, probably by influencing heterotrophic respiration (production and consumption processes) and transport to and from the HZ. Our results highlight the importance of including dynamic hydrological exchanges when studying and modeling GHG production and consumption in the HZ of large rivers.« less

Creator(s)/Author(s):
; ; ; ; ; ; ; ; ;
Publication Date:
DOE Contract Number:  
DESC0018170
Product Type:
Dataset
Research Org.:
Environmental System Science Data Infrastructure for a Virtual Ecosystem; Accounting for hydrological and microbial processes on greenhouse gas budgets from river systems
Sponsoring Org.:
U.S. DOE > Office of Science > Biological and Environmental Research (BER)
Subject:
54 ENVIRONMENTAL SCIENCES
Keywords:
EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER; EARTH SCIENCE > TERRESTRIAL HYDROSPHERE; EARTH SCIENCE > ATMOSPHERE; EARTH SCIENCE > ATMOSPHERE > AIR QUALITY > NITROGEN OXIDES; EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > CARBON DIOXIDE; EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > CARBON AND HYDROCARBON COMPOUNDS > METHANE; EARTH SCIENCE > AGRICULTURE > SOILS > CARBON
OSTI Identifier:
1595105
DOI:
10.15485/1595105

Citation Formats

Villa, Jorge A., Ju, Yang, Smith, Garrett J., Angle, Jordan C., Renteria, Lupita, Arntzen, Evan, Harding, Samuel F., Stegen, James C., Wrighton, Kelly C., and Bohrer, Gil. Chamber Flux and Porewater Concentration of CH4, CO2 and N2O, 2018, Colombia River bank at the Hanford site, WA, USA. United States: N. p., 2020. Web. doi:10.15485/1595105.
Villa, Jorge A., Ju, Yang, Smith, Garrett J., Angle, Jordan C., Renteria, Lupita, Arntzen, Evan, Harding, Samuel F., Stegen, James C., Wrighton, Kelly C., & Bohrer, Gil. Chamber Flux and Porewater Concentration of CH4, CO2 and N2O, 2018, Colombia River bank at the Hanford site, WA, USA. United States. doi:10.15485/1595105.
Villa, Jorge A., Ju, Yang, Smith, Garrett J., Angle, Jordan C., Renteria, Lupita, Arntzen, Evan, Harding, Samuel F., Stegen, James C., Wrighton, Kelly C., and Bohrer, Gil. 2020. "Chamber Flux and Porewater Concentration of CH4, CO2 and N2O, 2018, Colombia River bank at the Hanford site, WA, USA". United States. doi:10.15485/1595105. https://www.osti.gov/servlets/purl/1595105. Pub date:Sun Jan 26 00:00:00 EST 2020
@article{osti_1595105,
title = {Chamber Flux and Porewater Concentration of CH4, CO2 and N2O, 2018, Colombia River bank at the Hanford site, WA, USA},
author = {Villa, Jorge A. and Ju, Yang and Smith, Garrett J. and Angle, Jordan C. and Renteria, Lupita and Arntzen, Evan and Harding, Samuel F. and Stegen, James C. and Wrighton, Kelly C. and Bohrer, Gil},
abstractNote = {This is the corresponding observations data for the paper: Jorge A Villa; Garrett J Smith; Yang Ju; Lupita Renteria; Jordan C Angle; Evan Arntzen; Samuel F Harding; Huiying Ren; Xingyuan Chen; Audrey H Sawyer; Emily B Graham; James C Stegen; Kelly C Wrighton; Gil Bohrer (2020) Methane and nitrous oxide porewater concentrations and surface fluxes of a regulated river. Science of the Total Environment.Greenhouse gas (GHG) emissions from rivers are a critical missing component of current global GHG models. Their exclusion is mainly due to a lack of in-situ measurements and a poor understanding of the spatiotemporal dynamics of GHG production and emissions, which prevents optimal model parametrization. We combined simultaneous observations of porewater concentrations along different beach positions and depths, and surface fluxes of methane and nitrous oxide at a plot scale in a large regulated river during three water stages: rising, falling, and low. Our goal was to gain insights into the interactions between hydrological exchanges and GHG emissions and elucidate possible hypotheses that could guide future research on the mechanisms of GHG production, consumption, and transport in the hyporheic zone (HZ). Results indicate that the site functioned as a net source of methane. Surface fluxes of methane during river water stages at three beach positions (shallow, intermediate and deep) correlated with porewater concentrations of methane. However, fluxes were significantly higher in the intermediate position during the low water stage, suggesting that low residence time increased methane emissions. Vertical profiles of methane peaked at different depths, indicating an influence of the magnitude and direction of the hyporheic mixing during the different river water stages on methane production and consumption. The site acted as either a sink or a source of nitrous oxide depending on the elevation of the water column. Nitrous oxide porewater concentrations peaked at the upper layers of the sediment throughout the different water stages. River hydrological stages significantly influenced porewater concentrations and fluxes of GHG, probably by influencing heterotrophic respiration (production and consumption processes) and transport to and from the HZ. Our results highlight the importance of including dynamic hydrological exchanges when studying and modeling GHG production and consumption in the HZ of large rivers.},
doi = {10.15485/1595105},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {1}
}

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