Articles | Volume 24, issue 2
https://doi.org/10.5194/hess-24-945-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-24-945-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
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27 Feb 2020
Research article | Highlight paper |
| 27 Feb 2020
| 27 Feb 2020
Temperature controls production but hydrology regulates export of dissolved organic carbon at the catchment scale
Department of Civil and Environmental Engineering, The Pennsylvania
State University, University Park, PA 16802, USA
Julia Perdrial
Department of Geology, University of Vermont, Burlington, VT 05405, USA
Benjamin W. Abbott
Department of Plant and Wildlife Sciences, Brigham Young University, Provo, UT 84602, USA
Susana Bernal
Center of Advanced Studies of Blanes (CEAB-CSIC), Accés Cala St. Francesc 14, 17300, Blanes, Girona, Spain
Rémi Dupas
INRA, UMR 1069 SAS, Rennes, France
Sarah E. Godsey
Department of Geosciences, Idaho State University, Pocatello, ID
83201, USA
Adrian Harpold
Department of Natural Resources and Environmental Science, University of Nevada, Reno, NV 89557, USA
Donna Rizzo
Department of Civil and Environmental Engineering, University of
Vermont, Burlington, VT 05405, USA
Kristen Underwood
Department of Civil and Environmental Engineering, University of
Vermont, Burlington, VT 05405, USA
Thomas Adler
Department of Geology, University of Vermont, Burlington, VT 05405, USA
Gary Sterle
Department of Natural Resources and Environmental Science, University of Nevada, Reno, NV 89557, USA
Department of Civil and Environmental Engineering, The Pennsylvania
State University, University Park, PA 16802, USA
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Our current understanding of wildfires on Earth is filled with knowledge gaps. One reason for this is our poor record of fire in natural archives. We open the possibility for speleothems to be "a missing piece to the fire-puzzle". We find by effecting surface evaporation and transpiration rates, wildfires can have a multi-year impact on speleothem, forming dripwater hydrology and chemistry. We open a new avenue for speleothems as potential palaeo-fire archives.
M. M. R. Jahangir, K. G. Richards, M. G. Healy, L. Gill, C. Müller, P. Johnston, and O. Fenton
Hydrol. Earth Syst. Sci., 20, 109–123, https://doi.org/10.5194/hess-20-109-2016, https://doi.org/10.5194/hess-20-109-2016, 2016
Short summary
Short summary
Removal efficiency of carbon and nitrogen in constructed wetlands is inconsistent and does not reveal whether the removal processes are from physical attenuation or transformation to other reactive forms. Previous research did not consider "pollution swapping" driven by transformational processes. Herein the biogeochemical dynamics and fate of carbon and nitrogen and their potential impact on the environment, as well as novel ways in which these knowledge gaps may be eliminated, are explored.
E. M. Herndon, A. L. Dere, P. L. Sullivan, D. Norris, B. Reynolds, and S. L. Brantley
Hydrol. Earth Syst. Sci., 19, 3333–3347, https://doi.org/10.5194/hess-19-3333-2015, https://doi.org/10.5194/hess-19-3333-2015, 2015
Short summary
Short summary
Solute concentrations in headwater streams vary with discharge due to changing flow paths through the catchment during precipitation events. A comparison of stream chemistry across three headwater catchments reveals that solute heterogeneity across each landscape controls how different solutes respond to increasing discharge. Solute heterogeneity is at least partially controlled by landscape distributions of vegetation and soil organic matter.
B. van der Grift, J. C. Rozemeijer, J. Griffioen, and Y. van der Velde
Hydrol. Earth Syst. Sci., 18, 4687–4702, https://doi.org/10.5194/hess-18-4687-2014, https://doi.org/10.5194/hess-18-4687-2014, 2014
Short summary
Short summary
Exfiltration of anoxic groundwater containing Fe(II) to surface water is an important mechanism controlling P speciation in the lowland catchments. Due to changes in pH and temperature, the Fe(II) oxidation rates were much lower in winter than in summer. This study also shows a fast transformation of dissolved P to structural P during the initial stage of the Fe oxidation process resulting in low dissolved P concentrations in the surface water throughout the year.
P. M. Nyenje, L. M. G. Meijer, J. W. Foppen, R. Kulabako, and S. Uhlenbrook
Hydrol. Earth Syst. Sci., 18, 1009–1025, https://doi.org/10.5194/hess-18-1009-2014, https://doi.org/10.5194/hess-18-1009-2014, 2014
K. Michaelian
Hydrol. Earth Syst. Sci., 16, 2629–2645, https://doi.org/10.5194/hess-16-2629-2012, https://doi.org/10.5194/hess-16-2629-2012, 2012
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Short summary
Lateral carbon fluxes from terrestrial to aquatic systems remain central uncertainties in determining ecosystem carbon balance. This work explores how temperature and hydrology control production and export of dissolved organic carbon (DOC) at the catchment scale. Results illustrate the asynchrony of DOC production, controlled by temperature, and export, governed by flow paths; concentration–discharge relationships are determined by the relative contribution of shallow versus groundwater flow.
Lateral carbon fluxes from terrestrial to aquatic systems remain central uncertainties in...
