Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 Lück Matthias Matthias.Lueck@zalf.de Leibniz Centre for Agricultural Landscape Research ZALF https://ror.org/01ygyzs83 Treat Claire C claire.treat@agro.au.dk 0000-0002-1225-8178 Center for Landscape Research in Sustainable Agricultural Futures Land-CRAFT 2025 Initial thermokarst water and soil parameters from a palsa and a peatland site, used for a mesocosm incubation dataset https://doi.org/10.1594/PANGAEA.974304 2025-10-28T13:28:42 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. Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Baysinger Mackenzie mackbaysinger@gmail.com 0000-0001-9638-7497 Schaller Jörg 0000-0003-1996-0127 Lück Matthias Matthias.Lueck@zalf.de Hoffmann Mathias Windirsch Torben torben.windirsch@googlemail.com 0000-0002-4292-6931 Ellerbrock Ruth H Strauss Jens Jens.Strauss@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/jens-strauss.html 0000-0003-4678-4982 Treat Claire C claire.treat@agro.au.dk 0000-0002-1225-8178 2025 Enhanced CO 2 emissions driven by flooding in a simulation of palsa degradation journal article Biogeosciences 22(23) https://doi.org/10.5194/bg-22-7881-2025 7881-7899 Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Lück Matthias Matthias.Lueck@zalf.de Treat Claire C claire.treat@agro.au.dk 0000-0002-1225-8178 2025 Continuous CO2, CH4 and H2O fluxes measured during a 3-month mesocosm incubation from a Palsa dataset https://doi.org/10.1594/PANGAEA.974302 21.07916667 21.07916667 68.877251 68.87777778 21.07916667 68.87742659333334 2023-04-01T00:00:00 2023-04-01T00:00:00 0.0 100.0 not specified AWI_Perma Permafrost Research https://www.awi.de/en/science/geosciences/permafrost-research.html Alfred Wegener Institute - Research Unit Potsdam AWI Potsdam http://www.awi.de/en/institute/sites/potsdam/ https://ror.org/032e6b942 PER_23_PAL_14 68.87777778 21.07916667 Kilpisjarvi, Finland 2023-04-01T00:00:00 FN-Land_2023_Lapland FN-Land_2023_Lapland Finish Lapland Finish Lapland 2023-03-05T00:00:00 2023-03-05 2023-03-13T00:00:00 2023-03-13 AWI Arctic Land Expedition Strauss, Jens Strauss, Jens doi:10.57738/BZPM_0797_2025 AWI Arctic Land Expedition SIPRE corer SIPREC PER_23_THA_04 68.877251 21.07916667 Kilpisjarvi, Finland 2023-04-01T00:00:00 FN-Land_2023_Lapland FN-Land_2023_Lapland Finish Lapland Finish Lapland 2023-03-05T00:00:00 2023-03-05 2023-03-13T00:00:00 2023-03-13 AWI Arctic Land Expedition Strauss, Jens Strauss, Jens doi:10.57738/BZPM_0797_2025 AWI Arctic Land Expedition SIPRE corer SIPREC PER_23_Thermokarst_water 68.877251 21.07916667 Kilpisjarvi, Finland 2023-04-01T00:00:00 FN-Land_2023_Lapland FN-Land_2023_Lapland Finish Lapland Finish Lapland 2023-03-05T00:00:00 2023-03-05 2023-03-13T00:00:00 2023-03-13 AWI Arctic Land Expedition Strauss, Jens Strauss, Jens doi:10.57738/BZPM_0797_2025 AWI Arctic Land Expedition Water sample WS 159 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Event Latitude of event Latitude Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Latitude Longitude of event Longitude Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Longitude Permafrost extent Permafrost ext Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X permafrost zone: discontinuous, continuous, isolated, sporadic Permafrost ext Site Site site Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X site or treatment conducted within study, sometimes same as location, sometimes replicated across studies Site State of permafrost State permafrost http://purl.obolibrary.org/obo/ENVO_00000134 Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Is permafrost present State Active layer depth ALD cm Length L http://dbpedia.org/resource/Length Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Permafrost table measured in the field ALD [cm] Sample type Samp type Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Samp type Vegetation type Vegetation type Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X boreal or tundra Vegetation type Position Position position http://purl.obolibrary.org/obo/PATO_0000140 Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Landscape position of the site Position Major vegetation Major vegetation Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X dominant functional group: tree, shrub, graminoid, moss or DEEP Major vegetation DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Sample depth in cm Depth sed [m] Carbon, organic, total TOC % carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic total https://www.oxforddictionaries.com/definition/american_english/total Dimensionless Ratio ψ Element analyzer, vario Cube SoliTOC Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X TOC [%] Carbon, total/Nitrogen, total ratio TC/TN carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 total https://www.oxforddictionaries.com/definition/american_english/total nitrogen N https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:25555 ratio Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X TC: measured with Elementar soliTOC cube; TN: measured with Elementar rapidMAX N TC/TN pH pH Multimeter, WTW, Multilab 540 Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X pH Conductivity, electrical EC µS/cm conductivity http://purl.obolibrary.org/obo/PATO_0001585 Handheld meter, WTW, Cond 340i Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X measured with a reference temperature of 25 °C EC [µS/cm] Carbon, organic, dissolved DOC mg/l carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 organic dissolved http://purl.obolibrary.org/obo/PATO_0001986 Density http://dbpedia.org/resource/Density Total organic carbon analyzer (TOC-VCPH), Shimadzu Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X catalytic combustion at 630 °C DOC [mg/l] Soil water content SWC % Dimensionless Ratio ψ Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X SWC [%] Humification index HIX Fourier Transform Infrared (FTIR) spectrometer, Bio-Rad Laboratories, Bio-Rad FTS 135 coupled to KBr-technique Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Humification Index - Ratio of the C=O and COC band from the FTIR spectrum HIX Ratio Ratio ratio Fourier Transform Infrared (FTIR) spectrometer, Bio-Rad Laboratories, Bio-Rad FTS 135 coupled to KBr-technique Laurent Mélissa melissa.laurent@awi.de 0000-0002-2347-479X Ratio of the CH and C=O band from the FRTIR spectra Ratio CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Lapland Palsa Peatland Soil parameters author103813 author108987 author114330 author43620 author57937 author64595 author68181 author72643 author90796 basis5344 campaign3378216 campaign50129 curlevel30 event3208795 event3208796 event3219750 geocode1 geocode1599 geocode1600 geocode1601 inst21044 inst21882 inst21883 inst33 journal2146 license21 method11785 method11840 method13306 method16522 method16708 method17470 method17471 param130429 param14014 param140670 param140792 param15215 param159360 param173010 param182512 param48491 param50534 param53214 param53220 param53276 param67 param7059 param764 pi90796 project4433 ref137441 refds974302 term1073131 term1073162 term1073316 term1073493 term1074919 term2663825 term37810 term38253 term38263 term38477 term38548 term41056 term43792 term43794 term43863 term44419 term47665 term54060 term75246 term75247 term75248 topotype1