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Dissolved gas and nutrient data from flow-through sediment core incubations conducted at two temperatures
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| Type: | Resource | |
| Storage: | The size of this resource is 44.9 KB | |
| Created: | Mar 18, 2022 at 5:41 p.m. | |
| Last updated: | Mar 18, 2022 at 6:01 p.m.
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| DOI: | 10.4211/hs.1fe097882d76414eafea6b533c36924c | |
| Citation: | See how to cite this resource |
| Sharing Status: | Published |
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| Views: | 178 |
| Downloads: | 10 |
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Abstract
We collected intact sediment cores from the Sunflower River (near Ruleville, MS), and used flow-through incubations to test the interaction of nitrate concentration, carbon availability, and temperature on nitrous oxide production and yields (as % of total denitrification). We conducted the sediment core incubations at both 15 °C and 25 °C. Cores were dosed with a range of nitrate concentrations (1-6 mg L-1) and two carbon amendments: ambient (0.5 mg L-1) and +carbon (13.5 mg L-1). We used membrane inlet mass spectrometry (MIMS) to measure nitrous oxide, dinitrogen gas, and oxygen concentrations. We used the cadmium reduction method on a Lachat Quickchem Analyzer to measure nitrate concentrations and used the combustion catalytic oxidation method on a Shimadzu TOC-L to measure DOC concentrations.
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