Jesper Riis Christiansen

Search results

• 2025

  Clumped isotope measurements reveal aerobic oxidation of methane below the Greenland ice sheet

  Adnew, G. A., Röckmann, T., Blunier, T., Jørgensen, C. J., Sapper, S. E., van der Veen, C., Sivan, M., Popa, M. E. & Christiansen, J. R., 2025, In: Geochimica et Cosmochimica Acta. 389, p. 249-264 16 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

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• Effects of different nature management strategies on soil GHG fluxes: Trophic rewilding, passive rewilding and mowing

  Philipsen, F. N., O'Keeffe, J., Larsen, K. S., Kristensen, J. A., Roux, E. L., Cheng, Y., Müller, C. W., Vesterdal, L. & Christiansen, J. R., 18 Mar 2025

  Research output: Other contribution › Research

• Global Soil Methane Uptake Estimated by Scaling Up Local Measurements

  Jiang, J., Yan, Z., Jian, J., Peng, S., Tian, H., Morris, K. A., Ellam, R. M., Christiansen, J. R., Chen, H., Dong, J., Li, S. L., Fu, P., Guan, D., Yu, G., Liu, C.-Q., Ciais, P. & Bond-Lamberty, B., 2025, In: Global Change Biology. 31, 4, 13 p., e70194.

  Research output: Contribution to journal › Journal article › Research › peer-review

• Modeling the effects of rewilding on soil carbon dynamics and greenhouse gas mitigation in Europe

  Cheng, Y., Kristensen, J. A., Roux, L. L., Philipsen, F. N., Keeffe, J. O., Larsen, K. S., Müller, C. W., Christiansen, J. R. & Vesterdal, L., 18 Mar 2025

  Research output: Other contribution › Research

• Modelling the effects of rewetting on peatland CH4 dynamics

  Corydon, F. K., Steenberg Larsen, K., Riis Christiansen, J., Bekken, M. & Schurgers, G., 19 Mar 2025.

  Research output: Contribution to conference › Paper › Research › peer-review

• Reduction of forest soil biota impacts tree performance but not greenhouse gas fluxes

  Georgopoulos, K., Bezemer, T. M., Christiansen, J. R., Larsen, K. S., Moerman, G., Vermeulen, R., Anslan, S., Tedersoo, L. & Gomes, S. I., 2025, In: Soil Biology and Biochemistry. 200, 13 p., 109643.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  7 Downloads (Pure)

• Temperature and moisture both control net methane uptake in a temperate forest soil

  Liu, Y., Christiansen, J. R., Huang, K., Liu, D., Duan, Y., Liu, G., Gurmesa, G. A., Fang, X., Peng, S. & Fang, Y., 2025, In: Agricultural and Forest Meteorology. 370, 12 p., 110574.

  Research output: Contribution to journal › Journal article › Research › peer-review
• 2024

  Active afforestation of drained peatlands is not a viable option under the EU Nature Restoration Law

  Jurasinski, G., Barthelmes, A., Byrne, K. A., Chojnicki, B. H., Christiansen, J. R., Decleer, K., Fritz, C., Günther, A. B., Huth, V., Joosten, H., Juszczak, R., Juutinen, S., Kasimir, Å., Klemedtsson, L., Koebsch, F., Kotowski, W., Kull, A., Lamentowicz, M., Lindgren, A. & Lindsay, R. & 18 others, Linkevičienė, R., Lohila, A., Mander, Ü., Manton, M., Minkkinen, K., Peters, J., Renou-Wilson, F., Sendžikaitė, J., Šimanauskienė, R., Taminskas, J., Tanneberger, F., Tegetmeyer, C., van Diggelen, R., Vasander, H., Wilson, D., Zableckis, N., Zak, D. H. & Couwenberg, J., 2024, In: Ambio. 53, 7, p. 970-983 14 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  7 Citations (Scopus)

  10 Downloads (Pure)

• Clumped isotopes as a tool to discern the sources and sinks of methane in a subglacial environment

  Adnew, G. A., Röckmann, T., Blunier, T., Jørgensen, C. J., Sivan, M., Sapper, S. E., Popa, M. E., van der Veen, C. & Christiansen, J. R., 2024. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

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  27 Downloads (Pure)

• goFlux: A user-friendly way to calculate GHG fluxes yourself, regardless of user experience

  Rheault, K., Christiansen, J. R. & Larsen, K. S., 2024, In: The Journal of Open Source Software. 9, 96, 2 p., 6393.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  15 Downloads (Pure)

• Mikro-organismer i jorden vender op og ned på methanregnskabet

  Elberling, B., D'Imperio, L. & Christiansen, J. R., 2024, In: Aktuel Naturvidenskab. 2024, 1, p. 36-40

  Research output: Contribution to journal › Journal article › Communication

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  25 Downloads (Pure)

• Spatial variation of net methane uptake in Arctic and subarctic drylands of Canada and Greenland

  Jørgensen, C. J., Mariager, T. S. & Christiansen, J. R., 2024, In: Geoderma. 443, 12 p., 116815.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  3 Citations (Scopus)

  22 Downloads (Pure)

• Temporal dynamics of subglacial methane emissions revealed through continuous measurements at the margin of the Greenland Ice Sheet

  Sapper, S. E., Jørgensen, C. J., Adnew, G. A., Blunier, T. & Christiansen, J. R., 2024. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

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  22 Downloads (Pure)
• 2023

  Constraining sources and sinks of subglacial methane from the Greenland ice sheet using clumped isotopes

  Adnew, G. A., Schroll, M., Sapper, S. E., Röckmann, T., Popa, M. E., Jørgensen, C. J., Keppler, F., van der Veen, C., Sivan, M., Blunier, T. & Christiansen, J. R., 2023. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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  39 Downloads (Pure)

• First measurement of methane emissions from Canadian glaciers in the Yukon

  Sapper, S. E., Jørgensen, C. J., Schroll, M., Keppler, F. & Christiansen, J. R., 2023.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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  21 Downloads (Pure)

• Klimaeffekter ved genopretning af hydrologi i skove

  Christiansen, J. R. & Burns, R. E., 2023, Frederiksberg: Institut for Geovidenskab og Naturforvaltning, Københavns Universitet. 49 p. (IGN Rapport; No. juni 2023).

  Research output: Book/Report › Report › Research › peer-review

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  322 Downloads (Pure)

• Methane emissions from subglacial meltwater of three alpine glaciers in Yukon, Canada

  Sapper, S. E., Jørgensen, C. J., Schroll, M., Keppler, F. & Christiansen, J. R., 2023, In: Arctic, Antarctic, and Alpine Research. 55, 1, 13 p., 2284456.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  9 Citations (Scopus)

  43 Downloads (Pure)

• Methylotrophic Communities Associated with a Greenland Ice Sheet Methane Release Hotspot

  Znamínko, M., Falteisek, L., Vrbická, K., Klímová, P., Christiansen, J. R., Jørgensen, C. J. & Stibal, M., 2023, In: Microbial Ecology. 86, 4, p. 3057-3067

  Research output: Contribution to journal › Journal article › Research › peer-review

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  3 Citations (Scopus)

  24 Downloads (Pure)

• Seasonal dynamics of canopy interception loss within a deciduous and a coniferous forest

  Andreasen, M., Christiansen, J. R., Sonnenborg, T. O., Stisen, S. & Looms, M. C., 2023, In: Hydrological Processes. 37, 4, 16 p., 14828.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  11 Citations (Scopus)

  25 Downloads (Pure)

• Spatial controls of methane uptake in upland soils across climatic and geological regions in Greenland

  D’imperio, L., Li, B.-B., Tiedje, J. M., Oh, Y., Christiansen, J. R., Kepfer-Rojas, S., Westergaard-nielsen, A., Brandt, K. K., Holm, P. E., Wang, P., Ambus, P. & Elberling, B., 2023, In: Communications Earth & Environment. 4, 1, 10 p., 461.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  10 Citations (Scopus)

  39 Downloads (Pure)

• The IceWorm: an improved low-cost, low-power sensor for measuring dissolved CH₄ in water bodies

  Christiansen, J. R., Sapper, S. E. & Jørgensen, C. J., 2023. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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  28 Downloads (Pure)
• 2022

  Assessing modelled hydrological responses to afforestation using hectometre-scale cosmic-ray neutron soil moisture

  Andreasen, M., Christiansen, J. R., Sonnenborg, T. O., Stisen, S. & Looms, M. C., 2022. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

  Open Access

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  27 Downloads (Pure)

• A strong temperature dependence of soil nitric oxide emission from a temperate forest in Northeast China

  Huang, K., Su, C., Liu, D., Duan, Y., Kang, R., Yu, H., Liu, Y., Li, X., Gurmesa, G. A., Quan, Z., Christiansen, J. R., Zhu, W. & Fang, Y., 2022, In: Agricultural and Forest Meteorology. 323, 11 p., 109035.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  13 Citations (Scopus)

  20 Downloads (Pure)

• Climate mitigation potential and soil microbial response of cyanobacteria-fertilized bioenergy crops in a cool semi-arid cropland

  Gay, J. D., Goemann, H. M., Currey, B., Stoy, P. C., Christiansen, J. R., Miller, P. R., Poulter, B., Peyton, B. M. & Brookshire, E. N. J., 2022, In: GCB Bioenergy. 14, 12, p. 1303–1320 18 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  5 Citations (Scopus)

  28 Downloads (Pure)

• Disentangling long-term and short-term temperature response of carbon fluxes in a subarctic grassland ecosystem exposed to long-term, geothermal warming

  Avila, L. M., Sigurdsson, B. D., Christiansen, J. R. & Larsen, K. S., 2022. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

  Open Access

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  35 Downloads (Pure)

• Spatiotemporal variability of CO₂, CH₄ and N₂O fluxes over a soil hydrological gradient reveal soil water-temperature interactions on biogeochemical pathways

  Christiansen, J. & Larsen, K. S., 2022. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

  Open Access

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  15 Downloads (Pure)

• Subglacial methane cycling under the Greenland Ice Sheet 

  Hatton, J., Polášková, A., Garnett, M., Trubac, J., Christiansen, J., Jørgensen, C., Sapper, S., Vinšová, P., Blunier, T., Zarsky, J., Dyonisius, M., Znamínko, M. & Stibal, M., 2022. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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  33 Downloads (Pure)

• Temporal relationship between meltwater discharge and CH₄ and CO₂ emissions from the Greenland Ice Sheet

  Jørgensen, C. J., Sapper, S. E., Blunier, T., Gkinis, V. & Christiansen, J. R., 2022. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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  54 Downloads (Pure)

• The WaterWorm: a low-cost, low power sensor for the detection of dissolved CH4 in glacial meltwater

  Elise Sapper, S., Christiansen, J. R. & Jørgensen, C. J., 2022. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

  Open Access

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  23 Downloads (Pure)

• Våd natur kan give væsentlig klimaeffekt – men på lang sigt

  Christiansen, J. R., Jepsen, M. R., Ambus, P., Elberling, B., Mueller, C., Bruun, S., Gravsholt, A., Jensen, L. S., Bruun, H. H., Krøijer, S., Jessen, N. T., Jessen, S. & Stisen, S., 25 May 2022, BIO (DM).

  Research output: Other contribution › Net publication - Internet publication › Communication

  Open Access

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• 2021

  Abandoned Peatland Ecosystem Response to Secondary Succession

  Nielsen, A. S., Larsen, K. S., Vesterdal, L., Gundersen, P. & Christiansen, J. R., 2021. 2 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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  51 Downloads (Pure)

• Carbon Emissions From the Edge of the Greenland Ice Sheet Reveal Subglacial Processes of Methane and Carbon Dioxide Turnover

  Christiansen, J. R., Röckmann, T., Popa, M. E., Sapart, C. J. & Jørgensen, C. J., Nov 2021, In: Journal of Geophysical Research: Biogeosciences. 126, 11, 13 p., e2021JG006308.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  13 Citations (Scopus)

  21 Downloads (Pure)

• Inferring ecosystem-level rates of gross primary productivity, respiration, and evapotranspiration with automatic light-dark measurement chambers

  Larsen, K. S., Pullens, J. W. M., Avila, L. M., Bruun, S., Chen, J., Christiansen, J. R., Ibrom, A., Larsen, P., Lærke, P. E., Jørgensen, P. & Tariq, A., 2021.

  Research output: Contribution to conference › Conference abstract for conference › Communication

  Open Access

• No evidence for large subglacial source of mercury from the southwestern margin of the Greenland Ice Sheet

  Jørgensen, C. J., Søndergaard, J., Larsen, M. M., Kjeldsen, K. K., Rosa, D., Elise Sapper, S., Christiansen, J. R. & Albers, C. N., 2021, EarthArXiv, 9 p.

  Research output: Working paper › Research

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  27 Downloads (Pure)
• 2020

  Continuous methane concentration measurements at the Greenland ice sheet-atmosphere interface using a low-cost, low-power metal oxide sensor system

  Jørgensen, C. J., Mønster, J., Fuglsang, K. & Riis Christiansen, J., 2020, In: Atmospheric Measurement Techniques. 13, 6, p. 3319-3328 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  10 Citations (Scopus)

  106 Downloads (Pure)

• Global Research Alliance N₂O chamber methodology guidelines: Design considerations

  Clough, T. J., Rochette, P., Thomas, S. M., Pihlatie, M., Christiansen, J. R. & Thorman, R. E., 1 Sept 2020, In: Journal of Environmental Quality. 49, 5, p. 1081-1091 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  48 Citations (Scopus)

  30 Downloads (Pure)

• N-udvaskning efter skovrejsning på to lokaliteter på Sjælland

  Gundersen, P., de la Riva Valdes, P. J. & Christiansen, J. R., 2020, 1 ed. København. 46 p.

  Research output: Book/Report › Report › Research › peer-review

  Open Access

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  121 Downloads (Pure)

• Response of heterotrophic respiration and oxidation of atmospheric CH4 to changes in soil moisture and temperature in drylands across a global climate and ecosystem gradient

  Hessilt, T., Hauptmann, D. L. & Christiansen, J. R., 2020. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  Open Access

• Revealing unknown subglacial carbon processes using high frequency gas measurements and stable isotopes

  Christiansen, J. R., Röckmann, T., Popa, E., Sapart, C. J. & Jørgensen, C. J., 2020. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  Open Access

• Rewet or not – insights on spatiotemporal patterns of greenhouse gas fluxes from soils in a rewetted Danish forested wetland

  Larsen, K. S. & Christiansen, J. R., 2020. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

  Open Access

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  20 Downloads (Pure)
• 2019

  High-resolution, ecosystem-level CO₂, H₂O and CH₄ fluxes with novel automatic light/dark chamber

  Larsen, K. S., Jørgensen, P. & Christiansen, J. R., 2019, In: Geophysical Research Abstracts. 21, 1 p., EGU2019-5594.

  Research output: Contribution to journal › Conference abstract in journal › Research

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  19 Downloads (Pure)

• Reviews and syntheses: Greenhouse gas exchange data from drained organic forest soils - a review of current approaches and recommendations for future research

  Jauhiainen, J., Alm, J., Bjarnadottir, B., Callesen, I., Christiansen, J. R., Clarke, N., Dalsgaard, L., He, H., Jordan, S., Kazanaviciūtė, V., Klemedtsson, L., Lauren, A., Lazdins, A., Lehtonen, A., Lohila, A., Lupikis, A., Mander, Ü., Minkkinen, K., Kasimir, Å. & Olsson, M. & 7 others, Ojanen, P., Óskarsson, H., Sigurdsson, B. D., Søgaard, G., Soosaar, K., Vesterdal, L. & Laiho, R., 2019, In: Biogeosciences. 16, 23, p. 4687-4703 17 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

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  19 Citations (Scopus)

  123 Downloads (Pure)
• 2018

  First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet

  Christiansen, J. R. & Jorgensen, C. J., 1 Dec 2018, In: Scientific Reports. 8, 6 p., 16623.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  29 Citations (Scopus)

  193 Downloads (Pure)

• High-resolution ecosystem-level CO₂ and CH₄ fluxes with novel automatic chamber techniques

  Larsen, K. S., Christiansen, J. R. & Jørgensen, P., 2018, In: Geophysical Research Abstracts. 20, 1 p., EGU2018-10252.

  Research output: Contribution to journal › Conference abstract in journal › Research

  Open Access

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  8 Downloads (Pure)

• Metan fra skovene - mere mellem himmel og jord

  Felby, C., Christiansen, J. R., Bentsen, N. S. & Skov, S., 2018, In: Forskning i Bioenergi, Brint & Brændselsceller. 15, 63, p. 3-6 4 p.

  Research output: Contribution to journal › Journal article › Communication

  Open Access

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  115 Downloads (Pure)

• To replicate, or not to replicate: Should we shift to unreplicated multi-level designs in ecological experimentation?

  Schweiger, A., Kreyling, J., Bahn, M., Ineson, P., Migliavacca, M., Christiansen, J. & Larsen, K. S., 2018, In: Geophysical Research Abstracts. 20, 1 p., EGU2018-11902.

  Research output: Contribution to journal › Conference abstract in journal › Research

  Open Access

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  11 Downloads (Pure)

• To replicate, or not to replicate - that is the question: how to tackle nonlinear responses in ecological experiments

  Kreyling, J., Schweiger, A. H., Bahn, M., Ineson, P., Migliavacca, M., Morel-Journel, T., Christiansen, J. R., Schtickzelle, N. & Larsen, K. S., 2018, In: Ecology Letters. 21, 11, p. 1629-1638 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  Open Access

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  165 Citations (Scopus)

  11 Downloads (Pure)
• 2017

  Analyzing the hydrological impact of afforestation and tree species in two catchments with contrasting soil properties using the spatially distributed model MIKE SHE SWET

  Sonnenborg, T. O., Christiansen, J. R., Pang, B., Bruge, A., Stisen, S. & Gundersen, P., 2017, In: Agricultural and Forest Meteorology. 239, p. 118-133 16 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  24 Citations (Scopus)

• Different soil moisture control of net methane oxidation and production in organic upland and wet forest soils of the Pacific coastal rainforest in Canada

  Christiansen, J. R., Levy-Booth, D. J., Prescott, C. E. & Grayston, S. J., 2017, In: Canadian Journal of Forest Research. 47, 5, p. 628-635 8 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  18 Citations (Scopus)

• Indirect microbial effects on methane flux are stronger when the environmental influence is weaker in a temperate forest ecosystem

  Barker, J. S., Christiansen, J. R. & Grayston, S., 2017, In: Soil Biology & Biochemistry. 105, p. 92-95 4 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  3 Citations (Scopus)