Research output per year
Research output per year
Personal profile
Short presentation
My research focus is the interrelations between soil hydrology, biogeochemistry and microbial communities andhow environmental changes affect soils ability to produce clean water and store greenhouse gases. My research focuses on fundamental understanding of greenhouse gas cycling in soils, developing new methods for greenhouse gas detection and applied aspects in relation to management practices and climate mitigation tools.
Besides doing research, I am teaching in bachelor and master courses in the subjects of field methods, ecosystem hydrology and soil biogeochemistry. I am also supervising bachelor and master students projects within hydrology and biogeochemistry.
Teaching
I teach at BSc, MSc and PhD level at Department of Geosciences and Natural Resource Management.
I am course responsible for the 1st year course Naturgrundlaget for lnadscape architect students.
I contribute to the MSc course "Ecology and Environmental Science in Relation to Environmental Economics (EESREE)" with lectures and exercises.
Together with Associate Professor Klaus Steenberg Larsen i am responsible for the SCIENCE PhD course "Advanced Measurements and Analyses of Greenhouse Gas Fluxes from Soils".
In addition to the above teaching activities I am a guest teacher in courses on ecology and hydrology.
Since 2006 I have supervised 9 BSc and 22 MSc students. I am main supervisor for 3 PhD students and co-supervisor for 4 PhD students.
Current research
At the moment, I am working on several research projects in Denmark and Greenland.
MetICE - methane emissions from the subglacial environment of the ice sheet
PEACE - hydrological modelling of lowland soils now and in the future climate and associated greenhouse gas emissions
ReWet DK - infrastructure measuring hydrological and biogeochemical processes of restored wetlands on agriculture and in forests
WildSoil - changes in carbon and nitrogen processes in the soil after the introduction of large grazers as nature management
ReverCit - biogeochemical effects of top-soil removal in wetland peatlands
RECALL - ecosystem study of methane and carbon dioxide emissions in wetland lowland soils
External positions
Post-doctroral fellow, University of British Columbia
1 Jul 2012 → 30 Jun 2014
Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
Research output
-
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
Open AccessFile4 Downloads (Pure) -
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
-
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
Open AccessFile6 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
-
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, , 2024, In: Ambio. 53, 7, p. 970-983 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile7 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
Open AccessFile17 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
Open AccessFile12 Downloads (Pure)