Per Lennart Ambus

Per Lennart Ambus

Professor

ORCID: 0000-0001-7580-524X

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  1. Published

    Productivity and carbon footprint of perennial grass-forage legume intercropping strategies with high or low nitrogen fertilizer input

    Hauggaard-Nielsen, H., Lachouani, P., Knudsen, M. T., Ambus, Per Lennart, Boelt, B. & Gislum, R., 15 Jan 2016, In: Science of the Total Environment. 541, p. 1339-1347

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

  2. Published

    Pyrogenic organic matter as a nitrogen source to microbes and plants following fire in an Arctic heath tundra

    Xu, W., Elberling, Bo & Ambus, Per Lennart, 2022, In: Soil Biology & Biochemistry. 170, 9 p., 108699.

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

  3. Published

    Re-visiting soil carbon and nitrogen stocks in a temperate heathland seven years after the termination of free air CO2 enrichment (FACE)

    Li, Qiaoyan, Ambus, Per Lennart, Michelsen, Anders, Schmidt, Inger Kappel, Beier, Claus, Dietzen, Christiana Amalie, Reinsch, S., Arndal, M. F. & Larsen, Klaus Steenberg, 2022, In: Geoderma. 428, 7 p., 116185.

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

  4. Reactive nitrogen and greenhouse gas flux interactions in terrestrial ecosystems

    Ambus, Per Lennart, Skiba, U., Butterbach-Bahl, K. & Sutton, M. A., 1 Jun 2011, In: Plant and Soil. 343, 1-2, p. 1-3 3 p.

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

  5. Redistribution of slurry components as influenced by injection method, soil, and slurry properties

    Petersen, S., Nissen, H., Lund, I. & Ambus, Per Lennart, 1 Nov 2003, In: Journal of Environmental Quality. 32, 6, p. 2399-2409 11 p.

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

  6. Published

    Reduced N cycling in response to elevated CO2, warming, and drought in a Danish heathland

    Larsen, K. S., Andresen, L. C., Beier, C., Jonasson, S. E., Albert, K. R., Ambus, P. L., Arndal, M. F., Carter, M. S., Christensen, S., Holmstrup, M., Ibrom, A., Nielsen, J. K., van der Linden, L., Maraldo, K., Michelsen, A., Mikkelsen, T. N., Pilegaard, K., Priemé, A., Ro-Poulsen, H., Schmidt, I. K. & 2 others, Selsted, M. B. & Andersen, K. S., 2011, Nitrogen & global change: key findings - future challenges. 2 p.

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

  7. Published

    Reduced N cycling in response to elevated CO2, warming, and drought in a Danish heathland: synthesizing results of the CLIMAITE project after two years of treatments

    Larsen, K. S., Andresen, L. C., Beier, C., Jonasson, S. E., Albert, K. A., Ambus, P. L., Arndal, M. F., Carter, M. S., Christensen, S., Holmstrup, M., Ibrom, A., Nielsen, J. K., Van der Linden, L., Maraldo, K., Michelsen, A., Mikkelsen, T. N., Pilegaard, K., Priemé, A., Ro-Poulsen, H., Schmidt, I. K. & 2 others, Selsted, M. B. & Andersen, K. S., 2011, In: Global Change Biology. 17, 5, p. 1884-1899 16 p.

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

  8. Published

    Regional emissions of soil greenhouse gases across Tibetan alpine grasslands

    Wang, Peiyan, Wang, J., Elberling, Bo, Ambus, Per Lennart, Li, Y., Pan, J., Zhang, R., Guo, H. & Niu, S., 2024, In: Geoderma. 443, 10 p., 116843.

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

  9. Relationship between gross nitrogen cycling and nitrous oxide emissionin grass-clover pasture

    Ambus, Per Lennart, 1 Jun 2005, In: Nutrient Cycling in Agroecosystems. 72, 2, p. 189-199 11 p.

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

  10. Published

    Resistance of soil protein depolymerization rates to eight years of elevated CO2, warming, and summer drought in a temperate heathland

    Wild, B., Ambus, Per Lennart, Reinsch, S. & Richter, A., 2018, In: Biogeochemistry. 140, 3, p. 255-267 13 p.

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

  11. Published

    Responses of carbon and water fluxes following drought events in combinations with warming and elevated CO2

    Selsted, M. B., Albert, K., Ambus, Per Lennart, Michelsen, Anders, Ro-Poulsen, Helge, Mikkelsen, T. N. & Ibrom, A., 2009, In: Metlan Tyoraportteja. p. 144

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

  12. Published

    Sea animal activity controls CO2 , CH4 and N2O emission hotspots on South Georgia, sub-Antarctica

    Wang, P., D'Imperio, Ludovica, Liu, B., Tian, Q., Jia, Z., Ambus, Per Lennart, Rasch, M. & Elberling, Bo, 2019, In: Soil Biology and Biochemistry. 132, p. 174-186 13 p.

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

  13. Short-term carbon and nitrogen cycling in urine patches assessed by combined carbon-13 and nitrogen-15 labelling

    Ambus, Per Lennart, Petersen, S. O. & Soussana, J., 1 Jun 2007, In: Applied Soil Ecology. 121, 1-2, p. 84-92 9 p.

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

  14. Published

    Short-term effects of experimental fire on CO2, CH4 and N2O exchange in a well-drained arctic tundra

    Hermesdorf, Lena, D'Imperio, Ludovica, Elberling, Bo & Ambus, Per Lennart, 4 Mar 2021. 1 p.

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

  15. Published

    Short-term utilization of carbon by the soil microbial community under future climatic conditions in a temperate heathland

    Reinsch, S., Michelsen, Anders, Sárossy, Z., Egsgaard, H., Schmidt, Inger Kappel, Jakobsen, I. & Ambus, Per Lennart, 2014, In: Soil Biology & Biochemistry. 68, p. 9-19 12 p.

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

  16. Published

    Similar N2O flux from soil measured with different chamber techniques

    Ambus, Per Lennart, CLAYTON, H., ARAH, J., SMITH, K. & Christensen, Søren, 1 Jan 1993, In: ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS. 27, 1, p. 121-123 3 p.

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

  17. Published

    Slope hydrology and permafrost: The effect of snowmelt N transport on downslope ecosystem

    Rasmussen, Laura Helene, Ambus, Per Lennart, Zhang, W., Jansson, P. E., Michelsen, Anders & Elberling, Bo, 1 May 2020. 2 p.

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

  18. Published

    Soil respiration is stimulated by elevated CO2 and reduced by summer drought: three years of measurements in a multifactor ecosystem manipulation experiment in a temperate heathland (CLIMAITE)

    Selsted, M. B., van der Linden, L., Ibrom, A., Michelsen, Anders, Larsen, Klaus Steenberg, Pedersen, J., Mikkelsen, T. N., Pilegaard, K., Beier, Claus & Ambus, Per Lennart, 2012, In: Global Change Biology. 18, 4, p. 1216-1230 15 p.

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

  19. Sources of nitrous oxide emitted from European forest soils

    Ambus, Per Lennart, Zechmeister-Boltenstern, S. & Butterbach-Bahl, K., 2006, In: Biogeosciences. 3, 2, p. 135-145 11 p.

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

  20. Published

    Spatial and Seasonal Nitrous Oxide and Methane Fluxes in Danish Forest-, Grassland-, and Agroecosystems

    Ambus, Per Lennart & Christensen, Søren, 1 Sep 1995, In: Journal of Environmental Quality. 24, 5, p. 993-1001 9 p.

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

  21. Published

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

    D'Imperio, Ludovica, Li, B., Tiedje, J. M., Oh, Y., Christiansen, Jesper Riis, Kepfer Rojas, Sebastian, Westergaard-Nielsen, Andreas, Brandt, Kristian Koefoed, Holm, Peter Engelund, Wang, P., Ambus, Per Lennart & Elberling, Bo, 2023, In: Communications Earth & Environment. 4, 1, 10 p., 461.

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

  22. Published

    Stabilization and plant uptake of N from 15N-labelled pea residue 16.5 years after incorporation in soil: short communication

    Laberge, G., Ambus, Per Lennart, Hauggaard-Nielsen, H. & Jensen, E. S., 2006, In: Soil Biology & Biochemistry. 38, 7, p. 1998-2000 3 p.

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

  23. Strip cropping of alternating perennial grass-clover and annual rye-vetch intercrops when grown within an organic farming system

    Hauggaard-Nielsen, H., Johansen, A., Carter, M. S., Ambus, Per Lennart & Jensen, E. S., 20 Sep 2012, In: Field Crops Research. 136, p. 1-11 11 p.

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

  24. Published

    Technical Note: Mesocosm approach to quantify dissolved inorganic carbon percolation fluxes

    Thaysen, E. M., Jessen, Søren, Ambus, Per Lennart, Beier, Claus, Postma, D. & Jakobsen, I., 2014, In: Biogeosciences. 11, 4, p. 1077-1084 8 p.

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

  25. Published

    Technical note: mesocosm approach to quantification of carbon dioxide fluxes across the vadose zone

    Thaysen, E. M., Jessen, Søren, Ambus, Per Lennart, Beier, Claus, Postma, D. & Jakobsen, Iver, 2013, In: Biogeosciences Discussions. p. 9947-9967

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

  26. Temporal and spatial distribution of roots and competition for nitrogen in pea-barley intercrops: a field study employing 32P technique

    Hauggaard-Nielsen, H., Ambus, Per Lennart & Jensen, E., 1 Sep 2001, In: Plant and Soil. 236, 1, p. 63-74 12 p.

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

  27. Terrestrial plant methane production and emission

    Bruhn, D., Moller, I. M., Mikkelsen, T. N. & Ambus, Per Lennart, 1 Mar 2012, In: Physiologia Plantarum. 144, 3, p. 201-209 9 p.

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

  28. Published

    The Biological Time Machine - Biological responses to multiple environmental and climatic changes: Environment and Stress, Ph.d. symposium at KVL October 2006

    Albert, K., Ro-Poulsen, Helge, N. Mikkelsen, T., Michelsen, Anders, Beier, C., Jonasson, S. E., Ambus, Per Lennart, Schmidt, Inger Kappel, Holmstrup, M., Priemé, Anders & Christensen, Søren, 2006.

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

  29. Published

    The Influence of Grain Legume and Tillage Strategies on CO2 and N2O Gas Exchange under Varied Environmental Conditions

    Hansen, E. M. Ø., Hauggaard-nielsen, H., Justes, E., Ambus, Per Lennart & Mikkelsen, T. N., 2021, In: Agriculture. 11, 5, 18 p., 464.

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

  30. The competitive ability of pea-barley intercrops against weeds and the interactions with crop productivity and soil N availability

    Corre-Hellou, G., Dibet, A., Hauggaard-Nielsen, H., Crozat, Y., Gooding, M., Ambus, Per Lennart, Dahlmann, C., von Fragstein, P., Pristeri, A., Monti, M. & Jensen, E. S., 14 Jun 2011, In: Field Crops Research. 122, 3, p. 264-272 9 p.

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

  31. The effect of increased n deposition on nitrous oxide, methane and carbon dioxide fluxes from unmanaged forest and grassland communities in Michigan

    Ambus, Per Lennart & Robertson, G. P., 1 Jul 2006, In: Biogeochemistry. 79, 3, p. 315-337 23 p.

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

  32. Published

    The first exposure assessment of legacy and unrestricted brominated flame retardants in predatory birds of Pakistan

    Abbasi, N. A., Eulaers, I., Jaspers, V. L. B., Chaudhry, M. J. I., Frantz, A., Ambus, Per Lennart, Covaci, A. & Malik, R. N., 2017, In: Environmental Pollution. 220, Part B, p. 1208-1219 12 p.

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

  33. The influence of water stress on biomass and N accumulation, N partitioning between above and below ground parts and on N rhizodeposition during reproductive growth of pea (Pisum sativum L.)

    Mahieu, S., Germon, F., Aveline, A., Hauggaard- Nielsen, H., Ambus, Per Lennart & Jensen, E. S., 1 Feb 2009, In: Soil Biology & Biochemistry. 41, 2, p. 380-387 8 p.

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

  34. 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

  35. UV-induced N2O emission from plants

    Bruhn, D., Albert, K. R., Mikkelsen, T. N. & Ambus, Per Lennart, 1 Dec 2014, In: Atmospheric Environment. 99, p. 206-214 9 p.

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

  36. UV-induced carbon monoxide emission from living vegetation

    Bruhn, D., Albert, K. R., Mikkelsen, T. N. & Ambus, Per Lennart, 2013, In: Biogeosciences. 10, 12, p. 7877-7882 6 p.

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

  37. Published

    Urea in Weaver Ant Feces: Quantification and Investigation of the Uptake and Translocation of Urea in Coffea arabica

    Vidkjær, Nanna Hjort, Wollenweber, B., Jensen, K. V., Ambus, Per Lennart, Offenberg, J. & Fomsgaard, I. S., 1 Sep 2016, In: Journal of Plant Growth Regulation. 35, 3, p. 803-814 12 p.

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

  38. Published

    Use of feathers to assess polychlorinated biphenyl and organochlorine pesticide exposure in top predatory bird species of Pakistan

    Abbasi, N. A., Eulaers, I., Jaspers, V. L. B., Chaudhry, M. J. I., Frantz, A., Ambus, Per Lennart, Covaci, A. & Malik, R. N., 1 Nov 2016, In: Science of the Total Environment. 569-570, p. 1408-1417

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

  39. Published

    Våd natur kan give væsentlig klimaeffekt – men på lang sigt

    Christiansen, Jesper Riis, Jepsen, Martin Rudbeck, Ambus, Per Lennart, Elberling, Bo, Mueller, Carsten W., Bruun, Sander, Busck, Anne Gravsholt, Jensen, Lars Stoumann, Bruun, Hans Henrik, Krøijer, Stine, Jessen, Nina Toudal, Jessen, Søren & Stisen, S., 25 May 2022, BIO (DM).

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

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