Laurent, Mélissa; Lück, Matthias; Treat, Claire C (2025): Initial thermokarst water and soil parameters from a palsa and a peatland site, used for a mesocosm incubation [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974304
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Published: 2025-10-28 • DOI registered: 2025-11-26
Abstract:
In this dataset, we present the initial soil parameters of two cores from a palsa and a peatland in Lapland, as well as hydro-chemical parameters of thermokarst water used for inoculating par of the mesocosms. We measured sedimentary and hydro-chemical parameters, along with the humification index obtained through FTIR analysis. The replicate cores were incubated under different water treatments to identify the effect of hydrological conditions on carbon mineralization.
Related to:
Laurent, Mélissa; Lück, Matthias; Treat, Claire C (2025): Continuous CO2, CH4 and H2O fluxes measured during a 3-month mesocosm incubation from a Palsa [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974302
Project(s):
Permafrost Research (AWI_Perma)
Coverage:
Median Latitude: 68.877427 * 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: 2023-04-01T00:00:00 * Date/Time End: 2023-04-01T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 100 m
Event(s):
PER_23_PAL_14 * Latitude: 68.877778 * Longitude: 21.079167 * Date/Time: 2023-04-01T00:00:00 * Location: Kilpisjarvi, Finland * Campaign: FN-Land_2023_Lapland (Finish Lapland) * Basis: AWI Arctic Land Expedition * Method/Device: SIPRE corer (SIPREC)
PER_23_THA_04 * Latitude: 68.877251 * Longitude: 21.079167 * Date/Time: 2023-04-01T00:00:00 * Location: Kilpisjarvi, Finland * Campaign: FN-Land_2023_Lapland (Finish Lapland) * Basis: AWI Arctic Land Expedition * Method/Device: SIPRE corer (SIPREC)
PER_23_Thermokarst_water * Latitude: 68.877251 * Longitude: 21.079167 * Date/Time: 2023-04-01T00:00:00 * Location: Kilpisjarvi, Finland * Campaign: FN-Land_2023_Lapland (Finish Lapland) * Basis: AWI Arctic Land Expedition * Method/Device: Water sample (WS)
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 | Sample type | Samp type | Laurent, Mélissa | |||
| 9 | Vegetation type | Vegetation type | Laurent, Mélissa | boreal or tundra | ||
| 10 | Position | Position | Laurent, Mélissa | Landscape position of the site | ||
| 11 | Major vegetation | Major vegetation | Laurent, Mélissa | dominant functional group: tree, shrub, graminoid, moss or DEEP | ||
| 12 | DEPTH, sediment/rock | Depth sed | m | Laurent, Mélissa | Geocode – Sample depth in cm | |
| 13 | Carbon, organic, total | TOC | % | Laurent, Mélissa | Element analyzer, vario Cube SoliTOC | |
| 14 | Carbon, total/Nitrogen, total ratio | TC/TN | Laurent, Mélissa | TC: measured with Elementar soliTOC cube; TN: measured with Elementar rapidMAX N | ||
| 15 | pH | pH | Laurent, Mélissa | Multimeter, WTW, Multilab 540 | ||
| 16 | Conductivity, electrical | EC | µS/cm | Laurent, Mélissa | Handheld meter, WTW, Cond 340i | measured with a reference temperature of 25 °C |
| 17 | Carbon, organic, dissolved | DOC | mg/l | Laurent, Mélissa | Total organic carbon analyzer (TOC-VCPH), Shimadzu | catalytic combustion at 630 °C |
| 18 | Soil water content | SWC | % | Laurent, Mélissa | ||
| 19 | Humification index | HIX | Laurent, Mélissa | Fourier Transform Infrared (FTIR) spectrometer, Bio-Rad Laboratories, Bio-Rad FTS 135 coupled to KBr-technique | Humification Index - Ratio of the C=O and COC band from the FTIR spectrum | |
| 20 | Ratio | Ratio | Laurent, Mélissa | Fourier Transform Infrared (FTIR) spectrometer, Bio-Rad Laboratories, Bio-Rad FTS 135 coupled to KBr-technique | Ratio of the CH and C=O band from the FRTIR spectra |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
159 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Permafrost ext | 5 Site | 6 State | 7 ALD [cm] | 8 Samp type | 9 Vegetation type | 10 Position | 11 Major vegetation | 12 Depth sed [m] | 13 TOC [%] | 14 TC/TN | 15 pH | 16 EC [µS/cm] | 17 DOC [mg/l] | 18 SWC [%] | 19 HIX | 20 Ratio |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PER_23_PAL_14 | 68.8778 | 21.0792 | Sporadic | Peera | YES | 60 | Soil | Boreal peatland | Upland | Shrubs, herbaceous plants | 2 | 46.844 | 34.90214483 | 3.62 | 63.87000000 | 154.400 | 68.24276641 | 0.632188446 | 0.795101304 |
| PER_23_PAL_14 | 68.8778 | 21.0792 | Sporadic | Peera | YES | 60 | Soil | Boreal peatland | Upland | Shrubs, herbaceous plants | 20 | 46.644 | 26.97205596 | 3.44 | 52.63000000 | 119.550 | 41.72185430 | 0.698553241 | 0.841935217 |
| PER_23_PAL_14 | 68.8778 | 21.0792 | Sporadic | Peera | YES | 60 | Soil | Boreal peatland | Upland | Shrubs, herbaceous plants | 60 | 41.056 | 19.67046816 | 4.92 | 45.42666667 | 54.25361156 | 0.469173997 | 0.727319743 | |
| PER_23_PAL_14 | 68.8778 | 21.0792 | Sporadic | Peera | YES | 60 | Soil | Boreal peatland | Upland | Shrubs, herbaceous plants | 80 | 45.550 | 23.90377822 | 4.49 | 316.00000000 | 478.300 | 68.10344828 | 0.705970882 | 0.705162666 |
| PER_23_PAL_14 | 68.8778 | 21.0792 | Sporadic | Peera | YES | 60 | Soil | Boreal peatland | Upland | Shrubs, herbaceous plants | 100 | 45.132 | 23.24656697 | 4.52 | 326.00000000 | 432.850 | 71.83942481 | 0.584988372 | 0.710486635 |
| PER_23_THA_04 | 68.8773 | 21.0792 | Sporadic | Peera | NO | Soil | Boreal peatland | Wetland | Sedges, Eriophorum, Sphagnum mos | 0 | 46.003 | 37.87826986 | 4.76 | 83.88500000 | 50.050 | 82.96836983 | 0.546809572 | 0.790862294 | |
| PER_23_THA_04 | 68.8773 | 21.0792 | Sporadic | Peera | NO | Soil | Boreal peatland | Wetland | Sedges, Eriophorum, Sphagnum mos | 20 | 44.175 | 56.94465923 | 4.12 | 98.48000000 | 59.893 | 84.91642886 | 0.518205085 | 0.814074573 | |
| PER_23_THA_04 | 68.8773 | 21.0792 | Sporadic | Peera | NO | Soil | Boreal peatland | Wetland | Sedges, Eriophorum, Sphagnum mos | 60 | 45.281 | 27.45401018 | 4.46 | 77.91000000 | 65.633 | 71.71500179 | 0.613032863 | 0.714041460 | |
| PER_23_THA_04 | 68.8773 | 21.0792 | Sporadic | Peera | NO | Soil | Boreal peatland | Wetland | Sedges, Eriophorum, Sphagnum mos | 80 | 47.301 | 29.25358704 | 4.57 | 95.53000000 | 69.61130742 | 0.732198408 | 0.676451733 | ||
| PER_23_THA_04 | 68.8773 | 21.0792 | Sporadic | Peera | NO | Soil | Boreal peatland | Wetland | Sedges, Eriophorum, Sphagnum mos | 100 | 28.523 | 19.32395183 | 5.28 | 53.07308970 | 0.462463309 | 0.684711901 | |||
| PER_23_Thermokarst_water | 68.8773 | 21.0792 | Sporadic | Peera | NO | Water | Wetland | 4.20 | 300.00000000 | 9.800 |