Jesper Riis Christiansen

Jesper Riis Christiansen

Associate Professor - Promotion Programme

ORCID: 0000-0002-3277-0734

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  1. Published

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

    Adnew, G. A., Schroll, M., Sapper, Sarah Elise, Röckmann, T., Popa, M. E., Jørgensen, C. J., Keppler, F., van der Veen, C., Sivan, M., Blunier, Thomas & Christiansen, Jesper Riis, 2023. 2 p.

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

  2. Published

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

    Adnew, G. A., Röckmann, T., Blunier, Thomas, Jørgensen, C. J., Sivan, M., Sapper, Sarah Elise, Popa, M. E., Veen, C. V. D. & Christiansen, Jesper Riis, 8 Mar 2024.

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

  3. Published

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

    Andreasen, Mie, Christiansen, Jesper Riis, Sonnenborg, Torben Obel, Stisen, S. & Zibar, Majken Caroline Looms, 2022. 1 p.

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

  4. Published

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

    Andreasen, Mie, Christiansen, Jesper Riis, Sonnenborg, Torben Obel, Stisen, S. & Zibar, Majken Caroline Looms, 2023, In: Hydrological Processes. 37, 4, 16 p., 14828.

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

  5. Published

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

    Avila, Linsey Marie, Sigurdsson, B. D., Christiansen, Jesper Riis & Larsen, Klaus Steenberg, 2022. 2 p.

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

  6. Published

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

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

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

  7. Published

    Conversion of cropland to forest increases soil CH4 oxidation and abundance of CH4 oxidizing bacteria with stand age

    Bárcena, T. G., D'Imperio, Ludovica, Gundersen, Per, Vesterdal, Lars, Priemé, Anders & Christiansen, Jesper Riis, 2014, In: Applied Soil Ecology. 79, p. 49-58 10 p.

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

  8. Published

    The natural abundance of 15N in litter and soil profiles under six temperate tree species: N cycling depends on tree species traits and site fertility

    Callesen, Ingeborg, Nilsson, L. O., Schmidt, Inger Kappel, Vesterdal, Lars, Ambus, Per Lennart, Christiansen, Jesper Riis, Högberg, P. & Gundersen, Per, 2013, In: Plant and Soil. 368, 1-2, p. 375–392 18 p.

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

  9. Published

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

    Christiansen, Jesper Riis & Larsen, Klaus Steenberg, 2022. 1 p.

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

  10. Published

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

    Christiansen, Jesper Riis, 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

  11. Published

    Methane fluxes and the functional groups of methanotrophs and methanogens in a young Arctic landscape on Disko Island, West Greenland

    Christiansen, Jesper Riis, Barrera Romero, A. J., Jørgensen, Niels O. G., Glaring, M. A., Jørgensen, C. J., Berg, L. K. & Elberling, Bo, 2015, In: Biogeochemistry. 122, 1, p. 15-33 19 p.

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

  12. Published

    Klimaeffekter ved genopretning af hydrologi i skove

    Christiansen, Jesper Riis & Burns, Rachel Eleanor, 2023, Frederiksberg: Institut for Geovidenskab og Naturforvaltning, Københavns Universitet. 49 p. (IGN Rapport; No. juni 2023).

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

  13. Published

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

    Christiansen, Jesper Riis, Sapper, Sarah Elise & Jørgensen, C. J., 2023. 2 p.

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

  14. Published

    Microbial and environmental controls of methane fluxes along a soil moisture gradient in a Pacific coastal temperate rainforest

    Christiansen, Jesper Riis, Levy-Booth, D., Prescott, C. E. & Grayston, S. J., 2016, In: Ecosystems. 19, 7, p. 1255-1270 16 p.

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

  15. Comparison of CO2, CH4 and N2O soil-atmosphere exchange measured in static chambers with cavity ring-down spectroscopy and gas chromatography

    Christiansen, Jesper Riis, Outhwaite, J. & Smukler, S. M., 2015, In: Agricultural and Forest Meteorology. 211-212, p. 48-57 10 p.

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

  16. Published

    Role of six European tree species and land-use legacy for nitrogen and water budgets in forests

    Christiansen, Jesper Riis, Vesterdal, Lars, Callesen, I., Elberling, Bo, Schmidt, Inger Kappel & Gundersen, Per, 2010, In: Global Change Biology. 16, 8, p. 2224-2240 17 p.

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

  17. Published

    Nedsivning af vand under otte danske skove

    Christiansen, Jesper Riis, Vesterdal, Lars, Hansen, K. I., Sevel, L., Gundersen, Per & Bastrup-Birk, Annemarie, 2008, In: Videnblade Skov og Natur. 8.5-20, 2 p.

    Research output: Contribution to journal › Journal article › Communication

  18. Published

    Greenhouse gas exchange and nitrogen loss under forest change: the role of tree species, land use history and wet forest soils

    Christiansen, Jesper Riis, 2010, Forest & Landscape, University of Copenhagen. 217 p.

    Research output: Book/Report › Ph.D. thesis › Research

  19. Published

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

    Christiansen, Jesper Riis, 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

  20. Published

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

    Christiansen, Jesper Riis & Jorgensen, C. J., 2018, In: Scientific Reports. 8, 6 p., 16623.

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

  21. Published

    Hvor stor er nedsivningen til grundvandet under skove?

    Christiansen, Jesper Riis, Vesterdal, Lars, Sevel, L., Hansen, K. & Bastrup-Birk, A., 2006, In: Skoven. 38, 12, p. 562-565 4 p.

    Research output: Contribution to journal › Journal article › Communication

  22. Published

    Stand age and tree species affect N2O and CH4 fluxes from afforested soils

    Christiansen, Jesper Riis & Gundersen, Per, 2011, Nitrogen & global change: key findings - future challenges. Conference proceedings, 2011. 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

  23. Published

    Modelling water balance and nitrate leaching in temperate Norway spruce and beech forests located on the same soil type

    Christiansen, Jesper Riis, Elberling, B., Jansson, P., Callesen, Ingeborg & Vesterdal, Lars, 2006, Ikke angivet. Kovar, K., Hrkal, Z. & Bruthans, J. (eds.). Unesco, 4 p.

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

  24. Published

    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, Jesper Riis, 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

  25. Published

    Role of six European tree species and land-use legacy for nitrogen and water budgets in forests

    Christiansen, Jesper Riis, Vesterdal, Lars, Callesen, Ingeborg, Elberling, Bo, Schmidt, Inger Kappel & Gundersen, Per, 2010, In: Global Change Biology. 16, 8, p. 2224-2240

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

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ID: 4239664