Mendoza-Lera, Clara; Löwer, Jonas; Rovelli, Lorenzo: Moisture, temperature and light modualte methane oxidation from dry riverbeds - A mesocosms experiment [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973627 (dataset in review)
Abstract:
In this study, under lab conditions (Jan-Apr 2022) in we examined how three key drivers of methane oxidation in soils also modulate methane oxidation (i.e. methanotrophy) in dry riverbed sediments: gravimetric water content (GWC, as proxy of moisture), temperature, and light quality and intensity. We measured potential methane oxidation rates (PMO) as proxy of methanotrophy across a gradient of GWC, temperature (10, 20 and 30ºC), and under different light conditions (green and growth light) from dry (8% GWC) and wet (100%GWC) sediments collected in early Spring 2022 in the Queich River in Offenbach an der Queich (Germany). We used incubation vials (125mL) with about 10 mL sediment and spiked it with 120uL of pure methane gas following Bodmer et al. (2020). Incubations lasted for a week (until methane concentrations were below detection limit) and we replicated each treatment level four times (except for 10ºC that had just three).
Keyword(s):
Related to:
Mendoza-Lera, Clara; et al. (in review): Drivers of methane oxidation in dry streambeds.
References:
Bodmer, Pascal; Wilkinson, J; Lorke, A (2020): Sediment Properties Drive Spatial Variability of Potential Methane Production and Oxidation in Small Streams. Journal of Geophysical Research: Biogeosciences, 125(1), e2019JG005213, https://doi.org/10.1029/2019JG005213
Coverage:
Latitude: 49.202600 * Longitude: 8.188100
Minimum Elevation: 142.0 m * Maximum Elevation: 142.0 m
Event(s):
Qeich_mesocosm * Latitude: 49.202600 * Longitude: 8.188100 * Elevation: 142.0 m * Method/Device: Mesocosm experiment (MESO) * Comment: March-2022
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Mendoza-Lera, Clara | |||
| 2 | Methane, oxidation rate, potential, per unit sediment dry mass | PMO | µg/mg/day | Mendoza-Lera, Clara | After Bodmer et al. (2020) | |
| 3 | Replicate | Repl | Mendoza-Lera, Clara | each Treatment x Level eas run in four replicates (A,B,C,D) except for T10 that had only three replicates (A,B,C) | ||
| 4 | Sediment moisture | Sed moisture | Mendoza-Lera, Clara | dry corresponds to 8% Gravimetric Water Content (GWC), wet corresponds to 100% GWC | ||
| 5 | Treatment | Treat | Mendoza-Lera, Clara | Parameter; "temp" corresponds to the test of the effect of temperature on PMO; "light" corresponds to the test of the effect of light quality on PMO; "water_content" corresponds to the test of moisture as GWC on PMO | ||
| 6 | Treatment | Treat | Mendoza-Lera, Clara | Level; "temp" has three Levels: T10, T20 and T30 and 10ºC, 20ºC and 30ºC; "light" has two Levels: grow: a typical (blue-red) plant growth light to boost potential autotrophic activity, and green: created with three conventional LED bulbs spectrum was filtered via a green foil; "water_content" has four Levels: 1%, 5%, 10% and 100% GWC |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
324 data points