Schreckinger, José; Koschorreck, Matthias; Marcon-Henge, Lediane; Brauns, Mario; Rudolph, Simon; Osorio-Pelaez, Catalina; Meador, Travis B; Mendoza-Lera, Clara: CO₂, CH₄, and N₂O fluxes and porewater concentrations, δ¹⁵N-N₂ dynamics, and nutrient (NO₃⁻, NH₄⁺, PO₄³⁻) release and uptake rates throughout the experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.988281 (dataset in review), In: Schreckinger, J et al.: Flume experiment data on O₂, CO₂, CH₄, N₂O, δ¹⁵N-N₂, and sediment nutrient dynamics under six flow velocities and two flow-resumption modes using dried Queich River sediment (Germany) [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.987877 (dataset in review)
Abstract:
This dataset supports the publication "Dry-to-flow mode: impacts on river carbon and nitrogen dynamics". In where we investigated how instant and gradual surface flow resumption (the latter preceded by 6 h inundation), combined with six flow velocities and five levels of sediment transport, affect streambed biogeochemistry in the Queich River (Germany). Over 24 h, we measured CO₂, CH₄, and N₂O fluxes, porewater gas concentrations, and dissolved oxygen dynamics. Additionally, we applied a ¹⁵N-NO₃ tracer to track denitrification via changes in δ¹⁵N-N₂, and determined NO₃⁻ and NH₄⁺ release and uptake rates. The repository also includes videos documenting sediment transport conditions at flow velocities of 0.15, 0.17, 0.18, and 0.21 m s⁻¹.
Funding:
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Experimental run | Exp run | Schreckinger, José | |||
| 2 | Method comment | Method comm | Schreckinger, José | Dry-to-flow mode | ||
| 3 | Flow velocity, experimental | Vel exp | m/s | Schreckinger, José | ||
| 4 | Sediment transport | Sed transport | kg/m/s | Schreckinger, José | ||
| 5 | Period | Period | Schreckinger, José | |||
| 6 | Methane, flux | CH4 flux | µmol/m2/day | Schreckinger, José | Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610 | |
| 7 | Carbon dioxide, flux | CO2 flux | mmol/m2/day | Schreckinger, José | Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610 | |
| 8 | Ammonium, flux | [NH4]+ flux | µg/m2/h | Schreckinger, José | Flow analyzers, SEAL Analytical, AutoAnalyzer 3 and Bran+Luebbe, CFA Autoanalyzer | |
| 9 | Nitrate, flux | [NO3]- flux | µg/m2/h | Schreckinger, José | Flow analyzers, SEAL Analytical, AutoAnalyzer 3 and Bran+Luebbe, CFA Autoanalyzer | |
| 10 | Nitrous oxide, flux | N2O flux | µmol/m2/day | Schreckinger, José | Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610 | |
| 11 | Phosphate, flux | [PO4]3- flux | µg/m2/h | Schreckinger, José | Flow analyzers, SEAL Analytical, AutoAnalyzer 3 and Bran+Luebbe, CFA Autoanalyzer | |
| 12 | δ15N, gas, fractional | δ15N N2 fract | Schreckinger, José | Isotope Ratio Mass Spectrometer (IRMS), Thermo Scientific | change in d15N-N2, unitless | |
| 13 | Methane, porewater | CH4 pw | µmol/l | Schreckinger, José | Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610 | |
| 14 | Carbon dioxide, porewater | CO2 pw | µmol/l | Schreckinger, José | Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610 | |
| 15 | Nitrous oxide, porewater | N2O pw | µmol/l | Schreckinger, José | Gas analyzer, Los Gatos Research and Gas chromatograph, SRI Instruments USA, SRI8610 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
1038 data points