Per Lennart Ambus

Per Lennart Ambus

Professor

ORCID: 0000-0001-7580-524X

Publication year:
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1 - 50 out of 189Page size: 50
  1. 1991
  2. 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

  3. 1992
  4. Published

    Nitrogen turnover rates in a riparian fen determined by 15N dilution

    Ambus, Per Lennart, MOSIER, A. & Christensen, Søren, 1 Dec 1992, In: Biology and Fertility of Soils. 14, 4, p. 230-236 7 p.

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

  5. 1993
  6. Published

    Denitrification variability and control in a riparian fen irrigated with agricultural drainage water

    Ambus, Per Lennart & Christensen, Søren, 1993, In: Soil Biology & Biochemistry. 25, 7, p. 915-923 9 p.

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

  7. 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

  8. 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

  9. 1994
  10. Published

    Measurement of N2O emission from a fertilized grassland: An analysis of spatial variability

    Ambus, Per Lennart & Christensen, Søren, 20 Aug 1994, In: Journal of Geophysical Research: Atmospheres. 99, D8, p. 16549-16555 7 p.

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

  11. Published

    Micrometeorological and chamber methods for measurement of nitrous oxide fluxes between soils and the atmosphere: Overview and conclusions

    SMITH, K., CLAYTON, H., ARAH, J., Christensen, Søren, Ambus, Per Lennart, FOWLER, D., HARGREAVES, K., SKIBA, U., HARRIS, G., WIENHOLD, F., KLEMEDTSSON, L. & GALLE, B., 20 Aug 1994, In: Journal of Geophysical Research: Atmospheres. 99, D8, p. 16541-16548 8 p.

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

  12. 1995
  13. 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

  14. 1996
  15. Published

    Production of N2O in soil during decomposition of dead yeast cells with different spatial distributions

    Ambus, Per Lennart, 1 Apr 1996, In: Plant and Soil. 181, 1, p. 7-12 6 p.

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

  16. Published

    Nitrous oxide emission from an agricultural field: Comparison between measurements by flux chamber and micrometerological techniques

    Christensen, Søren, Ambus, Per Lennart, Arah, J., Clayton, H., Galle, B., Griffith, D., Hargreaves, K., Klemedtsson, L., Lind, A., Maag, M., Scott, A., Skiba, U., Smith, K., Welling, M. & Wienhold, F., 1 Dec 1996, In: Atmospheric Environment. 30, 24, p. 4183-4190 8 p.

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

  17. 1997

  18. Nitrogen mineralization and denitrification as influenced by crop residue particle size

    Ambus, Per Lennart & Jensen, E., 1 Dec 1997, In: Plant and Soil. 197, 2, p. 261-270 10 p.

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

  19. 1998

  20. 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

  21. Published

    Nitrous oxide production by denitrification and nitrification in temperate forest, grassland and agricultural soils

    Ambus, Per Lennart, 1 Sep 1998, In: European Journal of Soil Science. 49, 3, p. 495-502 8 p.

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

  22. 1999

  23. Fluxes of CH4 and N2O in aspen stands grown under ambient and twice-ambient CO2

    Ambus, Per Lennart & Robertson, G., 1999, In: Plant and Soil. 209, 1, p. 1-8 8 p.

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

  24. Plant uptake and soil degradation of organic contaminants in sludge amended soil

    Gron, C., Laturnus, F., Mortensen, G., Egsgaard, H., Bennetzen, S., Ambus, Per Lennart & Jensen, E. S., 21 Mar 1999, In: ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY. 217, 1, p. U716

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

  25. 2001
  26. 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

  27. 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

  28. Published

    Fluxes of NO3-, NH4+, NO, NO2, and N2O in an old danish beech forest

    Beier, Claus, Rasmussen, L., Pilegaard, K., Ambus, Per Lennart, Mikkelsen, T. N., Jensen, N. O., Kjøller, Annelise Helene, Priemé, Anders & Ladekarl, U. L., 2001, In: Water, Air, and Soil Pollution: Focus. 1, p. 187-195

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

  29. Nitrous oxide and N-leaching losses from agricultural soil: Influence of crop residue particle size, quality and placement

    Ambus, Per Lennart, Jensen, E. & Robertson, G., 2001, In: Phyton (Austria). 41, 3, p. 7-15 9 p.

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

  30. Published

    Plant uptake of LAS and DEHP from sludge amended soil

    Grøn, C., Laturnus, F., Mortensen, G. K., Egsgaard, H., Samsøe-Petersen, L., Ambus, Per Lennart & Jensen, E. S., 2001, ACS symposium series. Lipnick, R. L., Hermens, J. L. M., Jones, K. C. & Muir, D. C. G. (eds.). 772 ed. American Chemical Society, p. 99-111 13 p.

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

  31. Interspecific competition, N use and interference with weeds in pea-barley intercropping

    Hauggaard-Nielsen, H., Ambus, Per Lennart & Jensen, E., 20 Apr 2001, In: Field Crops Research. 70, 2, p. 101-109 9 p.

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

  32. Influence of plant growth on degradation of linear alkylbenzene sulfonate in sludge-amended soil

    Mortensen, G., Egsgaard, H., Ambus, Per Lennart, Jensen, E. & Gron, C., 1 Jul 2001, In: Journal of Environmental Quality. 30, 4, p. 1266-1270 5 p.

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

  33. 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

  34. 2002

  35. Natural carbon isotopes used to study methane consumption and production in soil

    Ambus, Per Lennart, Andersen, B., Kemner, M., Sorensen, B. & Wille, J., 2002, In: Isotopes in Environmental and Health Studies. 38, 3, p. 149-157 9 p.

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

  36. Evaluating effects of sewage sludge and household compost on soil physical, chemical and microbiological properties

    Debosz, K., Petersen, S., Kure, L. & Ambus, Per Lennart, 1 Mar 2002, In: Agriculture, Ecosystems & Environment. 19, 3, p. 237-248 12 p.

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

  37. 2003
  38. 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

  39. Published

    Field measurements of atmosphere-surface interactions in a Danish beech forest

    Pilegaard, K., Mikkelsen, T. N., Beier, C., Jensen, N. O., Ambus, Per Lennart & Ro-Poulsen, Helge, 2003, In: Boreal Environmental Research. 8, p. 315-333

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

  40. 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

  41. Published

    Field measurements of atmosphere-biosphere interactions in a Danish beech forest

    Pilegaard, K., Mikkelsen, T., Beier, Claus, Jensen, N., Ambus, Per Lennart & Ro-Poulsen, Helge, 10 Dec 2003, In: Boreal Environment Research. 8, 4, p. 315-333 19 p.

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

  42. 2004

  43. 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

  44. Published

    Freeze-thaw regime effects on carbon and nitrogen dynamics in sub-arctic heath tundra mesocosms

    Grogan, P., Michelsen, Anders, Ambus, Per Lennart & Jonasson, S. E., 2004, In: Soil Biology & Biochemistry. 36, p. 641-654

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

  45. Photorespiration contributes to stomatal regulation and carbon isotope fractionation: a study with barley, potato and Arabidopsis plants deficient in glycine decarboxylase

    Igamberdiev, A., Mikkelsen, T., Ambus, Per Lennart, Bauwe, H., Lea, P. & Gardestrom, P., 2004, In: Photosynthesis Research. 81, 2, p. 139-152 14 p.

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

  46. Published

    Freeze-thaw regime effects on carbon and nitrogen dynamics in sub-arctic heath tundra mesocosms

    Grogan, P., Michelsen, Anders, Ambus, Per Lennart & Jonasson, S. E., 1 Apr 2004, In: Soil Biology & Biochemistry. 36, 4, p. 641-654 14 p.

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

  47. 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

  48. 2005
  49. 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

  50. 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

  51. Published

    Heath nitrogen cycling at manipulated 'CLIMAITE'

    Andresen, L. C., Ambus, Per Lennart, Beier, C., Jonasson, S. E. & Michelsen, Anders, 2005, Ikke angivet. Institute of Nature Conservation, p. 52-52

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

  52. Inventories of N2O and NO emissions from European forest soils

    Kesik, M., Ambus, Per Lennart, Baritz, R., Bruggemann, N., Butterbach-Bahl, K., Damm, M., Duyzer, J., Horvath, L., Kiese, R., Kitzler, B., Leip, A., Li, C., Pihlatie, M., Pilegaard, K., Seufert, G., Simpson, D., Skiba, U., Smiatek, G., Vesala, T. & Zechmeister-Boltenstern, S., 2005, In: Biogeosciences. 2, 4, p. 353-375 23 p.

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

  53. Nitrous oxide emissions from a beech forest floor measured by eddy covariance and soil enclosure techniques

    Pihlatie, M., Rinne, J., Ambus, Per Lennart, Pilegaard, K., Dorsey, J., Rannik, U., Markkanen, T., Launiainen, S. & Vesala, T., 2005, In: Biogeosciences. 2, 4, p. 377-387 11 p.

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

  54. Oxidation of 13C-labeled methane in surface crusts of pig-and cattle slurry

    Ambus, Per Lennart & Petersen, S., 1 Jun 2005, In: Isotopes in Environmental and Health Studies. 41, 2, p. 125-133 9 p.

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

  55. 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

  56. Pan-European delta δ13C values of air and organic matter from forest ecosystems

    Hemming, D., Yakir, D., Ambus, P., Aurela, M., Besson, C., Black, K., Buchmann, N., Burlett, R., Cescatti, A., Clement, R., Gross, P., Granier, A., Grunwald, T., Havrankova, K., Janous, D., Janssens, IA., Knohl, A., Ostner, BK., Kowalski, A., Laurila, T. & 14 others, Mata, C., Marcolla, B., Matteucci, G., Moncrieff, J., Moors, E., Osborne, B., Pereira, J., Pihlatie, M., Pilegaard, K., Ponti, F., Rosova, Z., Rossi, F., Scartazza, A. & Vesala, T., 1 Jul 2005, In: Global Change Biology. 11, 7, p. 1065-1093 29 p.

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

  57. Plant-mediated nitrous oxide emissions from beech (Fagus sylvatica) leaves

    Pihlatie, M., Ambus, Per Lennart, Rinne, J., Pilegaard, K. & Vesala, T., 1 Oct 2005, In: New Phytologist. 168, 1, p. 93-98 6 p.

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

  58. 2006
  59. 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

  60. 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

  61. Factors controlling regional differences in forest soil emission of nitrogen oxides (NO and N2O)

    Pilegaard, K., Skiba, U., Ambus, Per Lennart, Beier, C., Brueggemann, N., Butterbach-Bahl, K., Dick, J., Dorsey, J., Duyzer, J., Gallagher, M., Gasche, R., Horvath, L., Kitzler, B., Leip, A., Pihlatie, M. K., Rosenkranz, P., Seufert, G., Vesala, T., Westrate, H. & Zechmeister-Boltenstern, S., 2006, In: Biogeosciences. 3, 4, p. 651-661 11 p.

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

  62. 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

  63. 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

  64. 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

  65. 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

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