Projects per year
Personal profile
Areas of expertise
- Wetlands
- Hydrology
- Biogeochemistry
- Nutrient balances
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- 1 Similar Profiles
Collaborations and top research areas from the last five years
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UNDVAK: Emission of nutrients and greenhouse gases before and after rewetting of carbon-rich agricultural soil
Lærke, P. E. (PI), Petersen, R. J. (PI), Zak, D. H. (Participant), Hoffmann, C. C. (Participant), Andersen, H. E. (Participant) & Tong, M. C. H. (Participant)
01/01/2025 → 31/12/2026
Project: Research
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Environmental consequences of fertilization with acidified cattle slurry
Zak, D. H. (Project manager), Krogh, P. H. (PI), Winding, A. (PI), Sapkota, R. (PI), Bruus, M. (PI), Thorsen, M. (Participant), Christiansen, N. G. (Participant), Oest, K. B. (Participant), Petersen, R. J. (Participant) & Thomsen, H. C. (PI)
19/12/2022 → 31/10/2024
Project: Research
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NKMv25: N-retentionskortlægning - National Kvælstofmodel v2025
Thodsen, H. (Project manager), Tornbjerg, H. (Participant), Frederiksen, R. R. (Participant), Petersen, R. J. (Participant), Kronvang, B. (Participant), Ovesen, N. B. (Participant), Larsen, S. E. (Participant), Kjeldgaard, A. (Participant), Audet, J. (Participant), Andersen, A. H. (Participant), Christiansen, D. A. (Participant), Hoffmann, C. C. (Participant), Henriksen, E. S. (Participant), Hermansen, N. (Participant), Sørensen, P. B. (Participant), Højberg, A. L. (Project manager), Stisen, S. (Participant), Børgesen, C. D. (Participant), Hansen, B. (Participant), Iversen, B. V. (PI), Muff, E. (Participant) & Conradsen, A. R. (Participant)
01/09/2022 → 27/08/2025
Project: Consultancy
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A full year of continuous net soil and ditch CO2, CH4, N2O fluxes, soil hydrology and meteorology for a drained fen in Denmark
Nielsen, A. S., Larsen, K. S., Lærke, P. E., Rodriguez, A. F., Pullens, J. W. M., Petersen, R. J. & Christiansen, J. R., 5 Jan 2026, In: Earth System Science Data. 18, 1, p. 33-53 21 p.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access -
Long-term evidence of nitrogen removal from four decades of wetland restoration in agricultural landscapes in Denmark
Hermansen, N., Petersen, R. J., Hoffmann, C. C., Kjeldgaard, A., Thodsen, H., Zak, D. H., Kronvang, B., Larsen, S. E. & Audet, J., 1 Jan 2026, In: Agriculture, Ecosystems and Environment. 395, 109924.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Open Access1 Citation (Scopus) -
Vurdering af nyt potentielt klimavirkemiddel: Fjernelse af topjord før vådlægning af organiske avbundsjorder
Zak, D. H., Hoffmann, C. C., Hermansen, N. & Petersen, R. J., 2026, (Rådgivningsnotat fra DCA - Nationalt Center for Fødevarer og Jordbrug).Research output: Memorandum/exposition › Memorandum › peer-review
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Vurdering af nyt potentielt klimavirkemiddel: Fjernelse af topjord før vådlægning af organiske lavbundsjorder
Zak, D. H., Hoffmann, C. C., Hermansen, N. & Petersen, R. J., 15 Jan 2026, 16 p.. No. 2024-0786981, Jan 13, 2026. (Rådgivningsnotat fra DCA - Nationalt Center for Fødevarer og Jordbrug).Research output: Memorandum/exposition › Memorandum
Open AccessFile -
Abstract 131 Loss of organic nitrogen from agricultural fields and catchments
Kronvang, B., Petersen, R. J., Rolighed, J., Frederiksen, R. R., Larsen, S. E., Thorsen, M., Andersen, A. H., Rasmussen, J., Engrob, K., Sørensen, K. K., Badawi, N., Hansen, B., Kim, H., Goldhammer, T., Graeber, D. & Zak, D. H., 2025.Research output: Contribution to conference › Conference abstract for conference › Research › peer-review
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Nitrogen retention in Dansih surface waters
Thodsen, H. (Lecturer), Petersen, R. J. (Other), Sørensen, P. B. (Other), Audet, J. (Other), Kronvang, B. (Other), Frederiksen, R. R. (Other) & Tornbjerg, H. (Other)
6 Jun 2025Activity: Presentations, memberships, employment, ownership and other activities › Lecture and oral contribution
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Water Research (Journal)
Petersen, R. J. (Reviewer)
9 Nov 2022Activity: Publication peer-review and editorial work types › Peer review of manuscripts › Research
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Global Biogeochemical Cycles (Journal)
Petersen, R. J. (Reviewer)
29 Sept 2022Activity: Publication peer-review and editorial work types › Peer review of manuscripts › Research
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Journal of Hydrology (Journal)
Petersen, R. J. (Reviewer)
15 Aug 2021 → 21 Aug 2021Activity: Publication peer-review and editorial work types › Peer review of manuscripts › Research
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Biogeochemistry (Journal)
Petersen, R. J. (Editor)
25 Jul 2021 → 20 Aug 2021Activity: Publication peer-review and editorial work types › Peer review of manuscripts › Research