This repository contains the data and code for our manuscript:
Teickner, H., Agethen, S., Berger, S., Boelsen, R. I., Borken, W., Bragazza, L., Broder, T., De La Cruz, F. B., Diaconu, A.-C., Dise, N. B., Drollinger, S., Estop-Aragonés, C., Gałka, M., Martí, M., Glatzel, S., Groß, J., Harris, L., Heffernan, L., Hodgkins, S. B., … Knorr, K.-H. (unpublished). Peatland mid-infrared database (1.0.0).
Please cite this compendium as:
Henning Teickner (2025). Compendium of R code and data for “Peatland Mid-Infrared Database 1.0.0”. Accessed 25 Sep 2025. https://github.com/henningte/eb1078
R: directory with R functions for the manuscript.data/raw_data/mir_quality_results.rds: RDS file with information on spectral quality of the spectra in the pmird database.pmird-paper.Rmd: R Markdown script that represents the main manuscript file.pmird-supporting-info.Rmd: R Markdown script that represents the supporting information for the manuscript.
To reproduce the manuscripts, run the ‘targets’ workflow by executing
run.R in above folders. Please note that you also have to set up the
pmird database (Teickner et al. 2025), as described in the Zenodo
repository.
Text and figures : CC-BY-4.0
Code : GPL-3.
Data : CC-0 attribution requested in reuse. See the sources section for licenses for data derived from external sources and how to give credit to the original author(s) and the source.
Data in the pmird database were derived from the following sources: De la Cruz, Osborne, and Barlaz (2016), Hodgkins et al. (2018), Knierzinger et al. (2020), Knierzinger (2020), Münchberger (2019), Münchberger et al. (2019), Schuster et al. (2022), Drollinger, Kuzyakov, and Glatzel (2019), Drollinger et al. (2020), Agethen and Knorr (2018), Kendall (2020), L. I. Harris et al. (2023), L. Harris and Olefeldt (2023), Pelletier et al. (2017), Teickner, Gao, and Knorr (2021), Teickner, Gao, and Knorr (2022), Heffernan (2019), Heffernan et al. (2020), Broder et al. (2012), Anzenhofer (2014, unpublished), Mathijssen et al. (2019), Wagner (2013), Hömberg (2014), Berger et al. (2017), Berger et al. (2018), T. R. Moore et al. (2019), Diaconu et al. (2020), Gałka, Hölzer, et al. (2022), Gałka, Diaconu, et al. (2022), L. I. Harris et al. (2018), L. I. Harris et al. (2019), Boothroyd et al. (2021), Worrall (2021), Reuter et al. (2019b), Reuter et al. (2019a), Reuter et al. (2020), Liu and Lennartz (2019), T. Moore et al. (2005), Turunen et al. (2004).
We welcome contributions from everyone. Please note that the eb1078 project is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.
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.
Agethen, Svenja, and Klaus-Holger Knorr. 2018. “Juncus Effusus Mono-Stands in Restored Cutover Peat Bogs – Analysis of Litter Quality, Controls of Anaerobic Decomposition, and the Risk of Secondary Carbon Loss.” Soil Biology and Biochemistry 117: 139–52. https://doi.org/10.1016/j.soilbio.2017.11.020.
Anzenhofer, Regina. 2014, unpublished. “Biogeochemical Characterization of Peat Profiles Along a Vegetation Gradient in an Ombrotrophic Bog, Patagonia.” Master’s thesis.
Berger, Sina, Gerhard Gebauer, Christian Blodau, and Klaus-Holger Knorr. 2017. “Peatlands in a Eutrophic World – Assessing the State of a Poor Fen-Bog Transition in Southern Ontario, Canada, After Long Term Nutrient Input and Altered Hydrological Conditions.” Soil Biology and Biochemistry 114 (November): 131–44. https://doi.org/10.1016/j.soilbio.2017.07.011.
Berger, Sina, Leandra S. E. Praetzel, Marie Goebel, Christian Blodau, and Klaus-Holger Knorr. 2018. “Differential Response of Carbon Cycling to Long-Term Nutrient Input and Altered Hydrological Conditions in a Continental Canadian Peatland.” Biogeosciences 15 (3): 885–903. https://doi.org/10.5194/bg-15-885-2018.
Boothroyd, I. M., F. Worrall, C. S. Moody, G. D. Clay, G. D. Abbott, and R. Rose. 2021. “Sulfur Constraints on the Carbon Cycle of a Blanket Bog Peatland.” Journal of Geophysical Research: Biogeosciences 126 (8). https://doi.org/10.1029/2021JG006435.
Broder, T., C. Blodau, H. Biester, and K. H. Knorr. 2012. “Peat Decomposition Records in Three Pristine Ombrotrophic Bogs in Southern Patagonia.” Biogeosciences 9 (4): 1479–91. https://doi.org/10.5194/bg-9-1479-2012.
De la Cruz, Florentino B., Jason Osborne, and Morton A. Barlaz. 2016. “Determination of Sources of Organic Matter in Solid Waste by Analysis of Phenolic Copper Oxide Oxidation Products of Lignin.” Journal of Environmental Engineering 142 (2): 04015076. https://doi.org/10.1061/(ASCE)EE.1943-7870.0001038.
Diaconu, Andrei-Cosmin, Ioan Tanţău, Klaus-Holger Knorr, Werner Borken, Angelica Feurdean, Andrei Panait, and Mariusz Gałka. 2020. “A Multi-Proxy Analysis of Hydroclimate Trends in an Ombrotrophic Bog over the Last Millennium in the Eastern Carpathians of Romania.” Palaeogeography, Palaeoclimatology, Palaeoecology 538 (January): 109390. https://doi.org/10.1016/j.palaeo.2019.109390.
Drollinger, Simon, Klaus-Holger Knorr, Wolfgang Knierzinger, and Stephan Glatzel. 2020. “Peat Decomposition Proxies of Alpine Bogs Along a Degradation Gradient.” Geoderma 369 (June): 114331. https://doi.org/10.1016/j.geoderma.2020.114331.
Drollinger, Simon, Yakov Kuzyakov, and Stephan Glatzel. 2019. “Effects
of Peat Decomposition on
Gałka, Mariusz, Andrei-Cosmin Diaconu, Angelica Feurdean, Julie Loisel, Henning Teickner, Tanja Broder, and Klaus-Holger Knorr. 2022. “Relations of Fire, Palaeohydrology, Vegetation Succession, and Carbon Accumulation, as Reconstructed from a Mountain Bog in the Harz Mountains (Germany) During the Last 6200 Years.” Geoderma 424 (October): 115991. https://doi.org/10.1016/j.geoderma.2022.115991.
Gałka, Mariusz, Adam Hölzer, Angelica Feurdean, Julie Loisel, Henning Teickner, Andrei-Cosmin Diaconu, Marta Szal, Tanja Broder, and Klaus-Holger Knorr. 2022. “Insight into the Factors of Mountain Bog and Forest Development in the Schwarzwald Mts.: Implications for Ecological Restoration.” Ecological Indicators 140 (July): 109039. https://doi.org/10.1016/j.ecolind.2022.109039.
Harris, Lorna I., Tim R. Moore, Nigel T. Roulet, and Andrew J. Pinsonneault. 2018. “Lichens: A Limit to Peat Growth?” Edited by John Lee. Journal of Ecology 106 (6): 2301–19. https://doi.org/10.1111/1365-2745.12975.
———. 2019. “Data from: Lichens: A Limit to Peat Growth?” Data. https://doi.org/10.5061/dryad.s136dc8.
Harris, Lorna I., David Olefeldt, Nicolas Pelletier, Christian Blodau, Klaus-Holger Knorr, Julie Talbot, Liam Heffernan, and Merritt Turetsky. 2023. “Permafrost Thaw Causes Large Carbon Loss in Boreal Peatlands While Changes to Peat Quality Are Limited.” Global Change Biology, August, gcb.16894. https://doi.org/10.1111/gcb.16894.
Harris, Lorna, and David Olefeldt. 2023. “Permafrost Thaw Causes Large Carbon Loss in Boreal Peatlands While Changes to Peat Quality Are Limited.” Dryad. https://doi.org/10.5061/DRYAD.47D7WM3KK.
Heffernan, Liam. 2019. “Peat Carbon,
Heffernan, Liam, Cristian Estop-Aragonés, Klaus-Holger Knorr, Julie Talbot, and David Olefeldt. 2020. “Long-Term Impacts of Permafrost Thaw on Carbon Storage in Peatlands: Deep Losses Offset by Surficial Accumulation.” Journal of Geophysical Research: Biogeosciences 125 (3). https://doi.org/10.1029/2019JG005501.
Hodgkins, Suzanne B., Curtis J. Richardson, René Dommain, Hongjun Wang, Paul H. Glaser, Brittany Verbeke, B. Rose Winkler, et al. 2018. “Tropical Peatland Carbon Storage Linked to Global Latitudinal Trends in Peat Recalcitrance.” Nature Communications 9 (1): 3640. https://doi.org/10.1038/s41467-018-06050-2.
Hömberg, Annkathrin. 2014. “Geochemische Charakterisierung von Mooren der Changbai Mountains.” {Bachelor thesis}, Münster: Münster.
Kendall, Rachel Anne. 2020. “Microbial and Substrate Decomposition Factors in Commercially Extracted Peatlands in Canada.” Master’s thesis, Montréal: McGill University.
Knierzinger, Wolfgang. 2020. “(Bio)geochemical Data Pürgschachen Moor.” Pangaea.
Knierzinger, Wolfgang, Ruth Drescher-Schneider, Klaus-Holger Knorr, Simon Drollinger, Andreas Limbeck, Lukas Brunnbauer, Felix Horak, Daniela Festi, and Michael Wagreich. 2020. “Anthropogenic and Climate Signals in Late-Holocene Peat Layers of an Ombrotrophic Bog in the Styrian Enns Valley (Austrian Alps).” E&G Quaternary Science Journal 69 (2): 121–37. https://doi.org/10.5194/egqsj-69-121-2020.
Liu, Haojie, and Bernd Lennartz. 2019. “Hydraulic Properties of Peat Soils Along a Bulk Density Gradient-A Meta Study.” Hydrological Processes 33 (1): 101–14. https://doi.org/10.1002/hyp.13314.
Mathijssen, Paul J. H., Mariusz Gałka, Werner Borken, and Klaus-Holger Knorr. 2019. “Plant Communities Control Long Term Carbon Accumulation and Biogeochemical Gradients in a Patagonian Bog.” Science of The Total Environment 684 (September): 670–81. https://doi.org/10.1016/j.scitotenv.2019.05.310.
Moore, Tim R., Klaus-Holger Knorr, Lauren Thompson, Cameron Roy, and Jill L. Bubier. 2019. “The Effect of Long-Term Fertilization on Peat in an Ombrotrophic Bog.” Geoderma 343 (June): 176–86. https://doi.org/10.1016/j.geoderma.2019.02.034.
Moore, Tim, Christian Blodau, Jukka Turunen, Nigel T. Roulet, and Pierre J. H. Richard. 2005. “Patterns of Nitrogen and Sulfur Accumulation and Retention in Ombrotrophic Bogs, Eastern Canada.” Global Change Biology 11 (2): 356–67. https://doi.org/10.1111/j.1365-2486.2004.00882.x.
Münchberger, Wiebke. 2019. “Past and Present Carbon Dynamics in Contrasting South Patagonian Bog Ecosystems.” PhD thesis, Münster: University Münster.
Münchberger, Wiebke, Klaus-Holger Knorr, Christian Blodau, Verónica A. Pancotto, and Till Kleinebecker. 2019. “Zero to Moderate Methane Emissions in a Densely Rooted, Pristine Patagonian Bog – Biogeochemical Controls as Revealed from Isotopic Evidence.” Biogeosciences 16 (2): 541–59. https://doi.org/10.5194/bg-16-541-2019.
Pelletier, Nicolas, Julie Talbot, David Olefeldt, Merritt Turetsky, Christian Blodau, Oliver Sonnentag, and William L Quinton. 2017. “Influence of Holocene Permafrost Aggradation and Thaw on the Paleoecology and Carbon Storage of a Peatland Complex in Northwestern Canada.” The Holocene 27 (9): 1391–1405. https://doi.org/10.1177/0959683617693899.
Reuter, Hendrik, Julia Gensel, Marcus Elvert, and Dominik Zak. 2019a. “CuO Lignin, and Bulk Decomposition Data of a 75-Day Anoxic Phragmites Australis Litter Decomposition Experiment in Soil Substrates from Three Northeast German Wetlands.” PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.902176.
———. 2019b. “Infrared Spectra (FTIR) of Phragmites Australis Litter, Initial and After Anoxic Decomposition in Three Wetland Substrates.” PANGAEA - Data Publisher for Earth & Environmental Science. https://doi.org/10.1594/PANGAEA.902069.
———. 2020. “Evidence for Preferential Protein Depolymerization in Wetland Soils in Response to External Nitrogen Availability Provided by a Novel FTIR Routine.” Biogeosciences 17 (2): 499–514. https://doi.org/10.5194/bg-17-499-2020.
Schuster, Wiebke, Klaus-Holger Knorr, Christian Blodau, Mariusz Gałka, Werner Borken, Verónica A. Pancotto, and Till Kleinebecker. 2022. “Control of Carbon and Nitrogen Accumulation by Vegetation in Pristine Bogs of Southern Patagonia.” Science of The Total Environment 810 (March): 151293. https://doi.org/10.1016/j.scitotenv.2021.151293.
Teickner, Henning, Svenja Agethen, Sina Berger, Rieke Inga Boelsen, Werner Borken, Luca Bragazza, Tanja Broder, et al. 2025. “Peatland Mid-Infrared Database (1.0.0).” Zenodo. https://doi.org/10.5281/zenodo.17092587.
Teickner, Henning, Chuanyu Gao, and Klaus-Holger Knorr. 2021. “Reproducible Research Compendium with R Code and Data for: ’Electrochemical Properties of Peat Particulate Organic Matter on a Global Scale: Relation to Peat Chemistry and Degree of Decomposition’.” Zenodo. https://doi.org/10.5281/zenodo.5792970.
———. 2022. “Electrochemical Properties of Peat Particulate Organic Matter on a Global Scale: Relation to Peat Chemistry and Degree of Decomposition.” Global Biogeochemical Cycles 36 (2): e2021GB007160. https://doi.org/10.1029/2021GB007160.
Turunen, Jukka, Nigel T. Roulet, Tim R. Moore, and Pierre J. H. Richard. 2004. “Nitrogen Deposition and Increased Carbon Accumulation in Ombrotrophic Peatlands in Eastern Canada: N Deposition and Peat Accumulation.” Global Biogeochemical Cycles 18 (3). https://doi.org/10.1029/2003GB002154.
Wagner, Sindy. 2013. “Analysis of Peat Decomposition, Element Distribution Patterns and Element Output of Two Peat Bogs in the Thuringian Forest.” Master’s thesis, University Bayreuth.
Worrall, Fred. 2021. “Sulphur Constraints on the Carbon Cycle of a Blanket Bog Peatland [Dataset].” Durham University. https://doi.org/10.15128/R2PK02C9794.