Per Lennart Ambus

Per Lennart Ambus

Professor

ORCID: 0000-0001-7580-524X

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  1. In situ 13CO2 pulse-labeling in a temperate heathland - development of a mobile multi-plot field setup

    Reinsch, S. & Ambus, Per Lennart, 15 Jul 2013, In: Rapid Communications in Mass Spectrometry. 27, 13, p. 1417-1428 12 p.

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

  2. A decade of free-air CO2 enrichment increased the carbon throughput in a grass-clover ecosystem but did not drastically change carbon allocation patterns

    Staddon, P. L., Reinsch, S., Olsson, P. A., Ambus, Per Lennart, Luescher, A. & Jakobsen, I., 1 Apr 2014, In: Functional Ecology. 28, 2, SI, p. 538-545 8 p.

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

  3. Published

    A new dataset of soil carbon and nitrogen stocks and profiles from an instrumented Greenlandic fen designed to evaluate land-surface models

    Morel, X., Hansen, Birger, Delire, C., Ambus, Per Lennart, Mastepanov, M. & Decharme, B., 2020, In: Earth System Science Data. 12, 4, p. 2365-2380 16 p.

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

  4. Published

    A review of the importance of mineral nitrogen cycling in the plant-soil-microbe system of permafrost-affected soils—changing the paradigm

    Ramm, E., Liu, C., Ambus, Per Lennart, Butterbach-bahl, K., Hu, B., Martikainen, P. J., Marushchak, M. E., Mueller, Carsten W., Rennenberg, H., Schloter, M., Siljanen, H. M. P., Voigt, C., Werner, C., Biasi, C. & Dannenmann, M., 1 Jan 2022, In: Environmental Research Letters. 17, 1, 34 p., 013004.

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

  5. Published

    Accumulation of soil carbon under elevated CO2 unaffected by warming and drought

    Dietzen, Christiana Amalie, Larsen, Klaus Steenberg, Ambus, Per Lennart, Arndal, M. F., Beier, Claus, Reinsch, S. & Schmidt, Inger Kappel, 2019, In: Geophysical Research Abstracts. 21, 1 p., EGU2019-5220.

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

  6. Published

    Accumulation of soil carbon under elevated CO2 unaffected by warming and drought

    Dietzen, Christiana Amalie, Larsen, Klaus Steenberg, Ambus, Per Lennart, Michelsen, Anders, Arndal, M. F., Beier, Claus, Reinsch, S. & Schmidt, Inger Kappel, 2019, In: Global Change Biology. 25, 9, p. 2970-2977 8 p.

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

  7. Activity of Type I Methanotrophs Dominates under High Methane Concentration: Methanotrophic Activity in Slurry Surface Crusts as Influenced by Methane, Oxygen, and Inorganic Nitrogen

    Duan, Y., Reinsch, S., Ambus, Per Lennart, Elsgaard, L. & Petersen, S. O., 2017, In: Journal of Environmental Quality. 46, 4, p. 767-775 9 p.

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

  8. Published

    Analysis of narwhal tusks reveals lifelong feeding ecology and mercury exposure

    Dietz, R., Desforges, J., Rigét, F. F., Aubail, A., Garde, E., Ambus, Per Lennart, Drimmie, R., Heide-Jørgensen, M. P. & Sonne, C., 2021, In: Current Biology. 31, 9, p. 2012-2019.e2 10 p.

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

  9. Annual maize and perennial grass-clover strip cropping for increased resource use efficiency and productivity using organic farming practice as a model

    Hauggaard-Nielsen, H., Johansen, A., Carter, M. S., Ambus, Per Lennart & Jensen, E. S., 1 May 2013, In: European Journal of Agronomy. 47, p. 55-64 10 p.

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

  10. Application of biochar to soil and N2O emissions: Potential effects of blending fast-pyrolysis biochar with anaerobically digested slurry

    Bruun, E. W., Müller-Stöver, Dorette Sophie, Ambus, Per Lennart & Hauggaard-Nielsen, H., Aug 2011, In: European Journal of Soil Science. 62, 4, p. 581-589 9 p.

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

  11. Application of the DNDC model to predict emissions of N2O from Irish agriculture

    Abdalla, M., Wattenbach, M., Smith, P., Ambus, Per Lennart, Jones, M. & Williams, M., 15 Jul 2009, In: Geoderma. 151, 3-4, p. 327-337 11 p.

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

  12. Assessing the use of delta δ13C natural abundance in separation of root and microbial respiration in a Danish beech (Fagus sylvatica L.) forest

    Formanek, P. & Ambus, Per Lennart, 2004, In: Rapid Communications in Mass Spectrometry. 18, 8, p. 897-902 6 p.

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

  13. Published

    Assessment of CH4 and N2O fluxes in a Danish beech (Fagus sylvatica) forest and an adjacent N-fertilised barley (Hordeum vulgare) field: effects of sewage sludge amendments

    Ambus, Per Lennart, Jensen, J. M., Priemé, Anders, Pilegaard, K. & Kjøller, A., 2001, In: Nutrient Cycling in Agroecosystems. 60, 1-3, p. 15-21 7 p.

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

  14. Published

    Atmospheric composition change: ecosystems-atmosphere interactions

    Fowler, D., Pilegaard, K., Sutton, M. A., Ambus, P. L., Raivonen, M., Duyzer, J., Simpson, D., Fagerli, H., Fuzzi, S., Schjørring, J. K., Granier, C., Neftel, A., Isaksen, I. S. A., Laj, P., Maione, M., Monks, P. S., Burkhardt, J., Daemmgen, U., Neirynck, J., Personne, E. & 37 others, Wichink-Kruit, R., Butterbach-Bahl, K., Flechard, C., Tuovinen, J. P., Coyle, M., Gerosa, G., Loubet, B., Altimir, N., Gruenhage, L., Ammann, C., Cieslik, S., Paoletti, E., Mikkelsen, T. N., Ro-Poulsen, Helge, Cellier, P., Cape, J. N., Horvath, L., Loreto, F., Niinemets, Ü., Palmer, P. I., Rinne, J., Misztal, P., Nemitz, E., Nilsson, D., Pryor, S., Gallagher, M. W., Vesala, T., Skiba, U., Brüggemann, N., Zechmeister-Boltenstern, S., Williams, J., O'Dowd, C., Facchini, M. C., de Leeuw, G., Flossman, A., Chaumerliac, N. & Erisman, J. W., 2009, In: Atmospheric Environment. 43, 33, p. 5193-5267 75 p.

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

  15. Automated near-continuous measurement of carbon dioxide and nitrous oxide fluxes from soil

    Ambus, Per Lennart & Robertson, G., 1 Mar 1998, In: Soil Science Society of America Journal. 62, 2, p. 394-400 7 p.

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

  16. Published

    Bacteria and fungi respond differently to multifactorial climate change in a temperate heathland, traced with 13C-Glycine and FACE CO2

    Andresen, L. C., Dungait, J. A. J., Bol, R., Selsted, M. B., Ambus, Per Lennart & Michelsen, Anders, 2014, In: P L o S One. 9, 1, 9 p., e85070.

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

  17. Published

    Belowground heathland responses after 2 years of combined warming, elevated CO2 and summer drought

    Andresen, L. C., Michelsen, Anders, Ambus, Per Lennart & Beier, Claus, 2010, In: Biogeochemistry. 101, 1-3, p. 27-42 16 p.

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

  18. Published

    Biochar application as a tool to decrease soil nitrogen losses (NH3 volatilization, N2O emissions, and N leaching) from croplands: Options and mitigation strength in a global perspective

    Liu, Q., Liu, B., Zhang, Y., Hu, T., Lin, Z., Liu, G., Wang, X., Ma, J., Wang, H., Jin, H., Ambus, Per Lennart, Amonette, J. E. & Xie, Z., 2019, In: Global Change Biology. 25, 6, p. 2077-2093 17 p.

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

  19. Published

    Biodegradation of chlorinated solvents in a water unsaturated topsoil

    Borch, T., Ambus, Per Lennart, Laturnus, F., Svensmark, Bo & Grøn, C., 2003, In: Chemosphere. 51, p. 143-152

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

  20. Published

    Biological 12C-13C fractionation increases with increasing community-complexity in soil microcosms

    Yang, W., Magid, Jakob, Christensen, Søren, Rønn, Regin, Ambus, Per Lennart & Ekelund, Flemming, 2014, In: Soil Biology & Biochemistry. 69, p. 197-201 5 p.

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

  21. Biologically fixed N2 as a source for N2O production in a grass-clover mixture, measured by 15N2

    Carter, M. & Ambus, Per Lennart, 1 Jan 2006, In: Nutrient Cycling in Agroecosystems. 74, 1, p. 13-26 14 p.

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

  22. Biomass production, symbiotic nitrogen fixation and inorganic N use in dual and tri-component annual intercrops

    Andersen, M., Hauggaard-Nielsen, H., Ambus, Per Lennart & Jensen, E., 1 Oct 2004, In: Plant and Soil. 266, 1-2, p. 273-287 15 p.

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

  23. Biosphere-atmosphere exchange of reactive nitrogen and greenhouse gases at the NitroEurope core flux measurement sites: Measurement strategy and first data sets

    Skiba, U., Drewer, J., Tang, Y. S., van Dijk, N., Helfter, C., Nemitz, E., Famulari, D., Cape, J. N., Jones, S. K., Twigg, M., Pihlatie, M., Vesala, T., Larsen, K. S., Carter, M. S., Ambus, P., Ibrom, A., Beier, C., Hensen, A., Frumau, A., Erisman, J. W. & 25 others, Brueggemann, N., Gasche, R., Butterbach-Bahl, K., Neftel, A., Spirig, C., Horvath, L., Freibauer, A., Cellier, P., Laville, P., Loubet, B., Magliulo, E., Bertolini, T., Seufert, G., Andersson, M., Manca, G., Laurila, T., Aurela, M., Lohila, A., Zechmeister-Boltenstern, S., Kitzler, B., Schaufler, G., Siemens, J., Kindler, R., Flechard, C. & Sutton, M. A., 2009, In: Applied Soil Ecology. 133, 3-4, p. 139-149

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

  24. Published

    CLIMAITE - CLIMAte change effects on biological processes In Terrestrial Ecosystems

    Beier, C., Mikkelsen, T. N., Ambus, Per Lennart, Pilegaard, K., Jonasson, S., Michelsen, A., Poulsen, H. R., Christensen, S., Primé, A., Schmidt, Inger Kappel, Gundersen, Per & Holmstrup, M., 2006. 1 p.

    Research output: Contribution to conference › Poster › Research

  25. Published

    CLIMAITE - a three factor climate change ecosystem manipulation experiment: Geophysical Research Abstracts, Vol. 10, EGU2008-A-07931, 2008. SRef-ID: 1607-7962/gra/EGU2008-A-07931. EGU General Assembly 13-18 April 2008 in Vienna, Switzerland

    N. Mikkelsen, T., Beier, C., Jonasson, S. E., Holmstrup, M., Schmidt, I. K., Ambus, P. L., Pilegaard, K., Michelsen, A., Albert, K., Andresen, L. C., Arndal, M. F., Bruun, N., Christensen, S., Danbæk, S., Gundersen, P., Jørgensen, P., J. Linden, L., Pedersen, J. K., Maraldo, K., Priemé, A. & 11 others, Riis-Nielsen, T., Ro-Poulsen, Helge, Andersen, K. S., Selsted, M., Sørensen, P., S. Larsen, K., S. Carter, M., Ibrom, A., Martinussen, Torben, Miglietta, F. & Sverdrup, H., 2008.

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

  26. Published

    CLIMAITE – CLIMAe change effects on biological processes in terrestrial ecosystems

    Schmidt, Inger Kappel, Beier, C., Mikkelsen, T. N., Ambus, Per Lennart, Pilegaard, K., Johansson, S., Michelsen, A., Poulsen, H. R., Christensen, S., Primé, A., Gundersen, Per & Holmstrup, M., 2005. 1 p.

    Research output: Contribution to conference › Poster › Research

  27. Published

    Can current moisture responses predict soil CO2 efflux under altered precipitation regimes? A synthesis of manipulation experiments

    Vicca, S., Bahn, M., Estiarte, M., van Loon, E. E., Vargas, R., Alberti, G., Ambus, P. L., Arain, A. M., Beier, C., Bentley, L. P., Borken, W., Buchmann, N., Collins, S. L., de Dato, G., Dukes, J. S., Escolar, C., Fay, P., Guidolotti, G., Hanson, P. J., Kahmen, A. & 28 others, Kröel-Dulay, G., Ladreiter-Knauss, T., Larsen, Klaus Steenberg, Lellei-Kovacs, E., Lebrija-Trejos, E., Maestre, F. T., Marhan, S., Marshall, M., Meir, P., Miao, Y., Muhr, J., Niklaus, P. A., Ogaya, R., Penuelas, J., Poll, C., Rustad, L. E., Savage, K., Schindlbacher, A., Schmidt, Inger Kappel, Smith, A. R., Sotta, E. D., Suseela, V., Tietema, A., van Gestel, N., van Straaten, O., Wan, S., Weber, U. & Janssens, I. A., 2014, In: Biogeosciences. 11, p. 2991-3013 23 p.

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

  28. Carbon footprint of rice production under biochar amendment - a case study in a Chinese rice cropping system

    Liu, Q., Liu, B., Ambus, Per Lennart, Zhang, Y., Hansen, V., Lin, Z., Shen, D., Liu, G., Bei, Q., Zhu, J., Wang, X., Ma, J., Lin, X., Yu, Y., Zhu, C. & Xie, Z., 1 Jan 2016, In: Global Change Biology. Bioenergy. 8, 1, p. 148-159 12 p.

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

  29. Published

    Challenges in measuring nitrogen isotope signatures in inorganic nitrogen forms: An interlaboratory comparison of three common measurement approaches

    Biasi, C., Jokinen, S., Prommer, J., Ambus, Per Lennart, Dörsch, P., Yu, L., Granger, S., Boeckx, P., Van Nieuland, K., Brueggemann, N., Wissel, H., Voropaev, A., Zilberman, T., Jaentti, H., Trubnikova, T., Welti, N., Voigt, C., Gebus-Czupyt, B., Czupyt, Z. & Wanek, W., 2022, In: Rapid Communications in Mass Spectrometry. 36, 22, 16 p., 9370.

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

  30. Published

    Climaite: a biological time machine

    Beier, C., Mikkelsen, T. N., Ambus, Per Lennart, Pilegaard, K., Jonasson, S., Michelsen, A., Poulsen, H. R., Christensen, S., Primé, A., Schmidt, Inger Kappel, Gundersen, Per & Holmstrup, M., 2005. 1 p.

    Research output: Contribution to conference › Poster › Research

  31. Published

    Climaite - a three factor climate change ecosystem manipulation study: set up and approaches for data analysis

    N. Mikkelsen, T., Beier, C., Schmidt, Inger Kappel, Michelsen, Anders, Albert, K., Ambus, Per Lennart & Andersen, K. S., 2006.

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

  32. Published

    Climate factors increase glycine use by gram positive bacteria

    Andresen, L. C., Bol, R., Dungait, J., Ambus, Per Lennart & Michelsen, Anders, 2011.

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

  33. Collembola feeding habits and niche specialization in agricultural grasslands of different composition

    Sechi, V., D'Annibale, A., Ambus, Per Lennart, Sarossy, Z., Krogh, P. H., Eriksen, J. & Holmstrup, M., 1 Jul 2014, In: Soil Biology & Biochemistry. 74, p. 31-38 8 p.

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

  34. Combined climate factors alleviate changes in gross soil nitrogen dynamics in heathlands

    Bjorsne, A., Rutting, T. & Ambus, Per Lennart, 1 Aug 2014, In: Biogeochemistry. 120, 1-3, p. 191-201 11 p.

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

  35. Published

    Combined effects of drought, temperature and CO2 on GHG emissions from temperate shrub-land

    Ambus, Per Lennart, Priemé, Anders, S. Carter, M., Albert, K., S. Larsen, K., Andersson, M. & Beier, C., 2007.

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

  36. Published

    Combined effects of glacial retreat and penguin activity on soil greenhouse gas fluxes on South Georgia, sub-Antarctica

    Wang, P., D'Imperio, Ludovica, Biersma, Elisabeth M., Ranniku, R., Xu, W., Tian, Q., Ambus, Per Lennart & Elberling, Bo, 2020, In: The Science of the Total Environment. 718, 135255.

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

  37. Published

    Combining a Quantum Cascade Laser Spectrometer with an Automated Closed-Chamber System for delta δ13 Measurements of Forest Soil, Tree Stem and Tree Root CO2 Fluxes

    Brændholt, A., Ibrom, A., Ambus, Per Lennart, Larsen, Klaus Steenberg & Pilegaard, K., 2019, In: Forests. 10, 5

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

  38. Published

    Common arbuscular mycorrhizal networks amplify competition for phosphorus between seedlings and established plants

    Merrild, M., Ambus, Per Lennart, Rosendahl, Søren & Jakobsen, I., 2013, In: New Phytologist. 200, 1, p. 229-240 12 p.

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

  39. Published

    Comparison of Denitrification in Two Riparian Soils

    Ambus, Per Lennart & Lowrance, R., 1 Jul 1991, In: Soil Science Society of America Journal. 55, 4, p. 994-997 4 p.

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

  40. Consequences of field N2O emissions for the environmental sustainability of plant-based biofuels produced within an organic farming system

    Carter, M. S., Hauggaard-Nielsen, H., Heiske, S., Jensen, M., Thomsen, Sune Tjalfe, Schmidt, J. E., Johansen, A. & Ambus, Per Lennart, 1 Jul 2012, In: Global Change Biology. Bioenergy. 4, 4, SI, p. 435-452 18 p.

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

  41. Published

    Context-dependent tree species effects on soil nitrogen transformations and related microbial functional genes

    Ribbons, R. R., Kepfer Rojas, Sebastian, Kosawang, Chatchai, Hansen, Ole Kim, Ambus, Per Lennart, McDonald, M., Grayston, S. J., Prescott, C. E. & Vesterdal, Lars, 1 Sep 2018, In: Biogeochemistry. 140, 2, p. 145-160 1 p.

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

  42. Published

    Control of denitrification enzyme activity in a streamside soil

    Ambus, Per Lennart, 1 Apr 1993, In: F E M S Microbiology Reviews. 102, 3-4, p. 225-234 10 p.

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

  43. Published

    Corrigendum to "Can current moisture responses predict soil CO2 efflux under altered precipitation regimes? A synthesis of manipulation experiments"

    Vicca, S., Bahn, M., Estiarte, M., van Loon, E., Vargas, R., Alberti, G., Ambus, P. L., Arft, A. M., Beier, C., Bentley, L. P., Borken, W., Buchmann, N., Collins, S. L., de Dato, G., Dukes, J. S., Escolar, C., Fay, P., Guidolotti, G., Hanson, P. J., Kahmen, A. & 28 others, Kroel-Dulay, G., Ladreiter-Knauss, T., Larsen, Klaus Steenberg, Lellei-Kovacs, E., Lebrija-Trejos, E., Maestre, F. T., Marhan, S., Marshall, M., Meir, P., Miao, Y., Muhr, J., Niklaus, P. A., Ogaya, R., Penuelas, J., Poll, C., Rustad, L. E., Savage, K., Schindlbacher, A., Schmidt, Inger Kappel, Smith, A. R., Sotta, E. D., Suseela, V., Tietema, A., van Gestel, N., van Straaten, O., Wan, S., Weber, U. & Janssens, I. A., 2014, In: Biogeosciences. 11, 12, p. 3307-3308 2 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  44. Published

    Corrigendum to "Productivity and carbon footprint of perennial grass-forage legume intercropping strategies with high or low nitrogen fertilizer input ": [Sci. Total Environ. 541 (January 2016) pages 1339–1347]

    Hauggaard-Nielsen, H., Lachouani, P., Knudsen, M. T., Ambus, Per Lennart, Boelt, B. & Gislum, R., 2016, In: Science of the Total Environment. 557-558, p. 917-918 2 p.

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

  45. Published

    Cowpea N rhizodeposition and its below-ground transfer to a co- existing and to a subsequent millet crop on a sandy soil of the Sudano-Sahelian eco-zone

    Laberge, G., Haussmann, B. I. G., Ambus, Per Lennart & Hogh-Jensen, H., 1 Mar 2011, In: Plant and Soil. 340, 1-2, SI, p. 369-382 14 p.

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

  46. Crop residue management strategies to reduce N-losses: Interaction with crop N supply

    Ambus, Per Lennart & Jensen, E., 2001, In: Communications in Soil Science and Plant Analysis. 32, 7-8, p. 981-996 16 p.

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

  47. Published

    Decrease in heathland soil labile organic carbon under future atmospheric and climatic conditions

    Thaysen, E. M., Reinsch, S., Larsen, Klaus Steenberg & Ambus, Per Lennart, 2017, In: Biogeochemistry. 133, 1, p. 17-36 20 p.

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

  48. Published

    Deepened snow enhances gross nitrogen cycling among Pan-Arctic tundra soils during both winter and summer

    Xu, W., Priemé, Anders, Cooper, E. J., Mörsdorf, M. A., Semenchuk, P., Elberling, Bo, Grogan, P. & Ambus, Per Lennart, 1 Sep 2021, In: Soil Biology and Biochemistry. 160, 13 p., 108356.

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

  49. Published

    Deepened snow in combination with summer warming increases growing season nitrous oxide emissions in dry tundra, but not in wet tundra

    Xu, W., Frendrup, L. L., Michelsen, Anders, Elberling, Bo & Ambus, Per Lennart, 2023, In: Soil Biology and Biochemistry. 180, 12 p., 109013.

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

  50. Published

    Deepened winter snow significantly influences the availability and forms of nitrogen taken up by plants in High Arctic tundra

    Mörsdorf, M. A., Baggesen, N. S., Yoccoz, N. G., Michelsen, Anders, Elberling, Bo, Ambus, Per Lennart & Cooper, E. J., 2019, In: Soil Biology & Biochemistry. 135, p. 222-234 13 p.

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

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