Laurent, Mélissa; Lück, Matthias; Treat, Claire C: Continuous CO2, CH4 and H2O fluxes measured during a 3-month mesocosm incubation from a Palsa [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974302 (dataset in review)
Abstract:
We aimed to study the effect of hydrological conditions on carbon mineralization during the degradation process of a Palsa. We simulated the processes of a Palsa degradation by incubating 1m soil cores from a Palsa and the surrounding Peatland under several water treatments. Each water treatment had three replicates, for a total of 15 cores. We continuously measured CO2 and CH4 emissions for 90 days by using a Picarro analyzer. Initially, we thawed the first 60 cm of the core and then deepened the thawing depth by 20 cm every four weeks to assess the contribution of deeper soil layers to C emissions . The results show higher CO2 emission rates following the thawing events for all the treatments under flooded conditions.
Related to:
Laurent, Mélissa; Lück, Matthias; Treat, Claire C: Initial thermokarst water and soil parameters from a palsa and a peatland site, used for a mesocosm incubation [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974304
Additional metadata:
Project(s):
Permafrost Research (AWI_Perma)
Coverage:
Median Latitude: 68.877672 * Median Longitude: 21.079167 * South-bound Latitude: 68.877251 * West-bound Longitude: 21.079167 * North-bound Latitude: 68.877778 * East-bound Longitude: 21.079167
Date/Time Start: 2023-04-17T00:00:00 * Date/Time End: 2023-07-14T10:00:00
Event(s):
PER_23_PAL_01 * Latitude: 68.877778 * Longitude: 21.079167 * Date/Time Start: 2023-04-17T00:00:00 * Date/Time End: 2023-07-14T08:00:00 * Location: Kilpisjarvi, Finland * Campaign: FN-Land_2023_Lapland (Finish Lapland) * Basis: AWI Arctic Land Expedition * Method/Device: Gas analyzer (Picarro G2508 )
PER_23_PAL_02 * Latitude: 68.877778 * Longitude: 21.079167 * Date/Time Start: 2023-04-17T01:00:00 * Date/Time End: 2023-07-14T08:00:00 * Location: Kilpisjarvi, Finland * Campaign: FN-Land_2023_Lapland (Finish Lapland) * Basis: AWI Arctic Land Expedition * Method/Device: Gas analyzer (Picarro G2508 )
PER_23_PAL_03 * Latitude: 68.877778 * Longitude: 21.079167 * Date/Time Start: 2023-04-17T01:00:00 * Date/Time End: 2023-07-14T09:00:00 * Location: Kilpisjarvi, Finland * Campaign: FN-Land_2023_Lapland (Finish Lapland) * Basis: AWI Arctic Land Expedition * Method/Device: Gas analyzer (Picarro G2508 )
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Laurent, Mélissa | |||
| 2 | Latitude of event | Latitude | Laurent, Mélissa | |||
| 3 | Longitude of event | Longitude | Laurent, Mélissa | |||
| 4 | Permafrost extent | Permafrost ext | Laurent, Mélissa | permafrost zone: discontinuous, continuous, isolated, sporadic | ||
| 5 | Site | Site | Laurent, Mélissa | site or treatment conducted within study, sometimes same as location, sometimes replicated across studies | ||
| 6 | State of permafrost | State | Laurent, Mélissa | Is permafrost present | ||
| 7 | Active layer depth | ALD | cm | Laurent, Mélissa | Permafrost table measured in the field | |
| 8 | Vegetation type | Vegetation type | Laurent, Mélissa | boreal or tundra | ||
| 9 | Position | Position | Laurent, Mélissa | Landscape position of the site | ||
| 10 | Major vegetation | Major vegetation | Laurent, Mélissa | dominant functional group: tree, shrub, graminoid, moss or DEEP | ||
| 11 | Soil type | Soil type | Laurent, Mélissa | soil classification | ||
| 12 | Treatment: water | T:H2O | Laurent, Mélissa | Water treatment during the incubation | ||
| 13 | Incubation duration | Inc dur | days | Laurent, Mélissa | ||
| 14 | Incubation temperature | Inc Temp | °C | Laurent, Mélissa | ||
| 15 | Number, total | N tot | # | Laurent, Mélissa | number of laboratory replications for each site/ sample | |
| 16 | Water table depth | WTD | cm | Laurent, Mélissa | Water table depth during the experiment | |
| 17 | Thaw depth of active layer | Thaw depth | cm | Laurent, Mélissa | Thaw depth of the soil column during the incubation (cm) | |
| 18 | Replication | Repl | Laurent, Mélissa | Identification number of the replicate (from 1 to 3) | ||
| 19 | Core length | Core length | cm | Laurent, Mélissa | Length of the core after being insert in the PVC tube | |
| 20 | Headspace | Hs | ml | Laurent, Mélissa | Headspace of the mesocosm | |
| 21 | DATE/TIME | Date/Time | Laurent, Mélissa | Geocode – Date and time of the measurement | ||
| 22 | Channels | Channels | # | Laurent, Mélissa | Identification number of the mesocosm during the incubation | |
| 23 | Carbon dioxide, flux | CO2 flux | mg/m2/h | Laurent, Mélissa | Gas analyzer (Picarro G2508 ) | |
| 24 | Methane, flux | CH4 flux | mg/m2/h | Laurent, Mélissa | Gas analyzer (Picarro G2508 ) | |
| 25 | Water, flux | H2O flux | mg/m2/h | Laurent, Mélissa | Gas analyzer (Picarro G2508 ) |
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:
661669 data points
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