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Peatland Mid-Infrared Database

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Abstract

Systematic collections of peat mid-infrared spectra and other peat properties are scarce, but useful to understand peat chemistry and develop spectral prediction models. The Peatland Mid-Infrared Database (‘pmird’) stores 3877 mid-infrared spectra of peat, peat-forming vegetation, and dissolved organic matter, together with measurements of other peat properties that were collated from previous studies. Most of the peat samples are from northern bogs, whereas southern or tropical peat and fen peat is underrepresented. The data are supplemented with metadata on sample origin, sample processing, measurements, and quality indicators on whether spectra are baseline corrected or not and on the relative contribution of water vapor, carbon dioxide, and noise to the spectra. The ‘pmird’ database can be used to analyze peat properties, develop and test spectral prediction models, and develop data and metadata standards.

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Data availability

The Peatland Mid-Infrared Database is available from Zenodo (https://doi.org/10.5281/zenodo.17092587)25.

Code availability

All code used to create the ‘pmird’ database is available within the repository of the ‘pmird’ database25. Detailed information about how these scripts work together can be found in the README file in the repository. The underlying data cannot be made available because some of them contain personal data. Therefore, the database cannot be reproduced from scratch. The ‘pmird’ R package is available from Zenodo74. Code to reproduce this manuscript is available from GitHub96.

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Acknowledgements

This study was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) grant no. KN 929/23-1 to Klaus-Holger Knorr and grant no. PE 1632/18-1 to Edzer Pebesma. We thank Chuanyu Gao for measuring electron accepting and donating capacities that were obtained from42. For dataset-specific acknowledgements, please refer to the information on acknowledgements stored in the ‘pmird’ database.

Funding

Open Access funding enabled and organized by Projekt DEAL.

Author information

Authors and Affiliations

  1. Ecohydrology & Biogeochemistry Group, Institute of Landscape Ecology, University of Münster, Münster, Germany

    Henning Teickner, Svenja Agethen, Tanja Broder, Cristian Estop-Aragonés, Jessica Groß, Annkathrin Hömberg-Grandjean, Helga Hoppe, Paul Mathijssen, Christopher Mollmann, Lisa Närtker & Klaus-Holger Knorr

  2. Spatiotemporal Modelling Lab, Institute for Geoinformatics, University of Münster, Münster, Germany

    Henning Teickner

  3. Pädagogische Hochschule St.Gallen (PHSG), Notkerstrasse 27, 9000, St.Gallen, Switzerland

    Sina Berger

  4. Albert-Ludwigs-Universität Freiburg, Freiburg, Germany

    Rieke Inga Boelsen

  5. Soil Ecology, University of Bayreuth, Dr.-Hans-Frisch-Str. 1-3, 95448, Bayreuth, Germany

    Werner Borken

  6. Agroscope, Field-Crop Systems and Plant Nutrition, Nyon, Switzerland

    Luca Bragazza

  7. University of North Florida: Jacksonville, Florida, US

    Florentino B. De La Cruz

  8. Department of Geology, Babeş-Bolyai University, Kogalniceanu, 1, 400084, Cluj-Napoca, Romania

    Andrei-Cosmin Diaconu

  9. UK Centre for Ecology & Hydrology Bush Estate, Penicuik, Edinburgh, EH26 0QB, United Kingdom

    Nancy B. Dise

  10. Bioclimatology, University of Göttingen, Göttingen, Germany

    Simon Drollinger

  11. University of Lodz, Faculty of Biology and Environmental Protection, Department of Biogeography, Paleoecology and Nature Conservation, Banacha 1/3, 90-237, Łodz, Poland

    Mariusz Gałka

  12. Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden

    Magalí Martí

  13. Department of Thematic Studies, Environmental Change, Linköping University, 58183, Linköping, Sweden

    Magalí Martí & Bo H. Svensson

  14. Department of Geography and Regional Research, Geoecology, Faculty of Earth Sciences, Geography and Astronomy, University of Vienna, Vienna, Austria

    Stephan Glatzel

  15. Department of Renewable Resources, University of Alberta, Edmonton, AB, T6G 2G7, Canada

    Lorna Harris & David Olefeldt

  16. Department of Earth Sciences, Earth and Climate Cluster, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands

    Liam Heffernan

  17. Department of Microbiology, The Ohio State University, Columbus, OH, 43210, USA

    Suzanne B. Hodgkins

  18. Institute for Landscape Ecology and Resources Management (ILR), Research Centre for BioSystems, Land Use and Nutrition (iFZ), Justus Liebig University Giessen, Heinrich-Buff-Ring 26, 35392, Giessen, Germany

    Till Kleinebecker

  19. Centre for International Development and Environmental Research (ZEU), Justus Liebig University Giessen, Senckenbergstrasse 3, 35390, Giessen, Germany

    Till Kleinebecker

  20. Federal Agency for Water Management, Institute for Land and Water Management Research, Petzenkirchen, 3252, Austria

    Wolfgang Knierzinger

  21. Faculty of Agricultural and Environmental Sciences, University of Rostock, Justus-von-Liebig-Weg 6, 18059, Rostock, Germany

    Haojie Liu

  22. Climate Resilience, Wageningen Environmental Research, Wageningen University & Research, PO Box 47, NL-6700, Wageningen, AA, Netherlands

    Paul Mathijssen

  23. Stiftung Naturschutz Schleswig-Holstein, Eschenbrook 4, 24113, Molfsee, Germany

    Wiebke Schuster

  24. Centro Austral de Investigaciones Científicas (CADIC), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ushuaia, Tierra del Fuego, Argentina

    Verónica Pancotto

  25. Instituto de Ciencias Polares, Ambiente y Recursos Naturales (ICPA), Universidad Nacional de Tierra del Fuego (UNTDF), Ushuaia, Tierra del Fuego, Argentina

    Verónica Pancotto

  26. Département de géographie, Université de Montréal, Montréal, Canada

    Nicolas Pelletier

  27. Department of Ecohydrology and Biogeochemistry, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Berlin, Germany

    Hendrik Reuter

  28. Department of Ecology, Radboud Institute for Biological and Environmental Sciences, Faculty of Science, Radboud University Nijmegen, 6525, Nijmegen, AJ, The Netherlands

    Bjorn Robroek

  29. School of Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, SO17 1BJ, UK

    Bjorn Robroek

  30. Département de Géographie, Université de Montréal, Campus MIL, 1375 Avenue Thérèse Lavoie-Roux, Montréal, Québec, H2V 0B3, Canada

    Julie Talbot

  31. University of Alberta, Department of Renewable Resources, South Academic Building 348D, Edmonton, AB, T6G 2G7, Canada

    Lauren Thompson

  32. Hatfield Consultants, 1228 Kensington Rd NW Unit 305, Calgary, AB, T2N 3P7, Canada

    Lauren Thompson

  33. Department of Earth Sciences, University of Durham, Durham, DH1 3LE, UK

    Fred Worrall

  34. Ecohydrology Research Group, Dept. Hydrology & Water Resources, Nanjing University of Information Science and Technology, Ningliu Road. 219, 210000, Nanjing, China

    Zhi-Guo Yu

Authors

  1. Henning Teickner
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  2. Svenja Agethen
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  3. Sina Berger
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  4. Rieke Inga Boelsen
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  5. Werner Borken
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  6. Luca Bragazza
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  7. Tanja Broder
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  8. Florentino B. De La Cruz
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  9. Andrei-Cosmin Diaconu
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  10. Nancy B. Dise
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  11. Simon Drollinger
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  12. Cristian Estop-Aragonés
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  13. Mariusz Gałka
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  14. Magalí Martí
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  15. Stephan Glatzel
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  16. Jessica Groß
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  17. Lorna Harris
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  18. Liam Heffernan
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  19. Suzanne B. Hodgkins
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Contributions

H.T.: Conceptualization, methodology, software, validation, formal analysis, investigation, visualization, writing – original draft. K.H.K.: supervision, funding acquisition. All authors: data curation, writing – review & editing.

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Correspondence to
Henning Teickner.

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Supplementary information

Supporting information to: Peatland Mid-Infrared Database (download PDF )

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Teickner, H., Agethen, S., Berger, S. et al. Peatland Mid-Infrared Database.
Sci Data (2026). https://doi.org/10.1038/s41597-026-06986-x

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  • DOI: https://doi.org/10.1038/s41597-026-06986-x

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