Søren Christensen

Søren Christensen

Guest Researcher

ORCID: 0000-0002-7067-5586

Publication year:
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1 - 100 out of 126Page size: 100
  1. 2024
  2. Published

    Cadmium accumulation in organisms from a spruce plantation amended with wood ash - an environmental risk?

    Ekelund, Flemming, Cruz-Paredes, C., Jørgensen, Christian Hviid Friis, Vestergård, M., Rasmussen, K. R., Mortensen, Louise Hindborg, Kindtler, Nikolaj Lunding, Rønn, Regin, Christensen, Søren, Johansen, Jesper Liengaard & Kjøller, Rasmus, 2024, In: Trees, Forests and People. 15, 6 p., 100499.

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

  3. Published

    Global N2O emissions from our planet: Which fluxes are affected by man, and can we reduce these?

    Christensen, Søren & Rousk, Kathrin, 2024, In: iScience. 27, 2, 10 p., 109042.

    Research output: Contribution to journal › Review › Research › peer-review

  4. 2021
  5. Published

    Bacteria Respond Stronger Than Fungi Across a Steep Wood Ash-Driven pH Gradient

    Cruz-Paredes, C., Bang-Andreasen, T., Christensen, Søren, Ekelund, Flemming, Frøslev, Tobias Guldberg, Jacobsen, C. S., Johansen, Jesper Liengaard, Mortensen, Louise Hindborg, Rønn, Regin, Vestergård, M. & Kjøller, Rasmus, 2021, In: Frontiers in Forests and Global Change. 4, 10 p., 781844.

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

  6. Published

    Increased Likelihood of High Nitrous Oxide (N2O) Exchange in Soils at Reduced Microbial Diversity

    Christensen, Søren, Hol, W. H. G., Kurm, V. & Vestergård, M., 2021, In: Sustainability. 13, 4, 8 p., 1685.

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

  7. Published

    The complexity of wood ash fertilization disentangled: Effects on soil pH, nutrient status, plant growth and cadmium accumulation

    Johansen, Jesper Liengaard, Nielsen, M. L., Vestergård, M., Mortensen, Louise Hindborg, Cruz-Paredes, C., Rønn, Regin, Kjøller, Rasmus, Hovmand, Mads Frederik, Christensen, Søren & Ekelund, Flemming, 2021, In: Environmental and Experimental Botany. 185, 9 p., 104424.

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

  8. 2019
  9. Published

    Wood ash effects on growth and cadmium uptake in Deschampsia flexuosa (Wavy hair-grass)

    Kindtler, Nikolaj Lunding, Ekelund, Flemming, Rønn, Regin, Kjøller, Rasmus, Hovmand, Mads Frederik, Vestergård, M., Christensen, Søren & Johansen, Jesper Liengaard, 2019, In: Environmental Pollution. p. 886-893 8 p.

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

  10. 2018
  11. Published

    Are nitrous oxide emissions and nitrogen fixation linked in temperate bogs?

    Rousk, Kathrin, Vestergård, M. & Christensen, Søren, 2018, In: Soil Biology & Biochemistry. 123, p. 74-79 6 p.

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

  12. 2017
  13. Published

    Does introduction of clover in an agricultural grassland affect the food base and functional diversity of Collembola?

    D'Annibale, A., Sechi, V., Larsen, T., Christensen, Søren, Krogh, P. H. & Eriksen, J., Sep 2017, In: Soil Biology and Biochemistry. 112, p. 165-176 12 p.

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

  14. Published

    Long-term and realistic global change manipulations had low impact on diversity of soil biota in temperate heathland

    Holmstrup, M., Damgaard, C., Schmidt, Inger Kappel, Arndal, M. F., Beier, Claus, Mikkelsen, T. N., Ambus, Per Lennart, Larsen, Klaus Steenberg, Pilegaard, K., Michelsen, Anders, Andresen, L. C., Haugwitz, M. S., Bergmark, L., Priemé, Anders, Zaitsev, A. S., Georgieva, S., Dam, M., Vestergård, M. & Christensen, Søren, 2017, In: Scientific Reports. 7, 11 p., 41388.

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

  15. Published

    Wood ash application increases pH but does not harm the soil mesofauna

    Qin, J., Hovmand, Mads Frederik, Ekelund, Flemming, Rønn, Regin, Christensen, Søren, Groot, G. A. D., Mortensen, Louise Hindborg, Skov, Simon & Krogh, P. H., 2017, In: Environmental Pollution. 224, p. 581-589 9 p.

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

  16. 2016
  17. Published

    Continuous measurements of nitrous oxide isotopomers during incubation experiments

    Winther, M. N., Balslev-Harder, D., Christensen, Søren, Priemé, Anders, Elberling, Bo, Crosson, E. & Blunier, Thomas, 2016, In: Biogeosciences. 15, p. 767-780 19 p.

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

  18. Published

    Enhanced priming of old, not new soil carbon at elevated atmospheric CO2

    Vestergård, M., Reinsch, S., Bengtson, P., Ambus, Per Lennart & Christensen, Søren, 2016, In: Soil Biology & Biochemistry. 100, p. 140-148 9 p.

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

  19. 2015
  20. Published

    Defoliation reduces soil biota - and modifies stimulating effects of elevated CO2

    Dam, M. & Christensen, Søren, 2015, In: Ecology and Evolution. 5, 21, p. 4840-4848 9 p.

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

  21. Published

    Intensive agriculture reduces soil biodiversity across Europe

    Tsiafouli, M. A., Thebault, E., Sgardelis, S. P., de Ruiter, P. C., van der Putten, W. H., Birkhofer, K., Hemerik, L., de Vries, F. T., Bardgett, R. D., Brady, M. V., Bjornlund, L., Jorgensen, H. B., Christensen, S., D' Hertefeldt, T., Hotes, S., Hol, W. H. G., Frouz, J., Liiri, M., Mortimer, S. R., Setala, H. & 6 others, Tzanopoulos, J., Uteseny, K., Pizl, V., Stary, J., Wolters, V. & Hedlund, K., 2015, In: Global Change Biology. 21, 2, p. 973-985 13 p.

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

  22. 2014
  23. 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

  24. Published

    Soil microorganisms respond to five years of climate change manipulations and elevated atmospheric CO2 in a temperate heath ecosystem

    Haugwitz, M. S., Bergmark, L., Priemé, Anders, Christensen, Søren, Beier, Claus & Michelsen, Anders, 2014, In: Plant and Soil. 374, 1-2, p. 211-222 12 p.

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

  25. 2013
  26. Published

    Multi-factor climate change effects on insect herbivore performance

    Scherber, C., Gladbach, D. J., Andersen, K. S., Karsten, R. J., Schmidt, Inger Kappel, Michelsen, Anders, Albert, K. R., Larsen, Klaus Steenberg, Mikkelsen, T. N., Beier, Claus & Christensen, Søren, 2013, In: Ecology and Evolution. 3, 6, p. 1449–1460 12 p.

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

  27. Published

    Structural equation model on multi-factor climate change on herbivore survival and growth

    Scherber, C., Gladbach, D., Andersen, K. S., Karsten, R. J., Schmidt, Inger Kappel, Michelsen, Anders, Albert, K. R., Larsen, Klaus Steenberg, Mikkelsen, T. N., Beier, C. & Christensen, Søren, 2013

    Research output: Other contribution › Research

  28. 2012
  29. Published

    Disturbance promotes non-indigenous bacterial invasion in soil microcosms: analysis of the roles of resource availability and community structure

    Liu, M., Strandmark, L. B., Rønn, Regin, Christensen, Søren & Ekelund, Flemming, 2012, In: P L o S One. 7, 10, p. 1-6 6 p.

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

  30. Published

    Freezing eliminates efficient colonizers from nematode communities in frost-free temperate soils

    Dam, M., Madsen, M. V. & Christensen, Søren, 2012, In: Soil Biology & Biochemistry. 48, p. 167-174 8 p.

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

  31. Published

    Interactions between above- and belowground organisms modified in climate change experiments

    Andersen, K. S., Scherber, C., Gladbach, D., Beier, Claus, Mikkelsen, T. N. & Christensen, Søren, 2012, In: Nature Climate Change. 2, p. 805-808 4 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  32. Published

    Land use alters the resistance and resilience of soil food webs to drought

    de Vries, F. T., Liiri, M. E., Strandmark, L. B., Bowker, M. A., Christensen, Søren, Setälä, H. M. & Bardgett, R. D., 2012, In: Nature Climate Change. 2, p. 276-280 5 p.

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

  33. Published

    Legacy effects of drought on plant growth and the soil food web

    de Vries, F., Liiri, M., Strandmark, L. B., Setälä, H., Christensen, Søren & Bardgett, R., 2012, In: Oecologia. 170, 3, p. 821-833 13 p.

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

  34. Published

    Nematodes and protozoa affect plants differently, depending on soil nutrient status

    Strandmark, L. B., Liu, M., Rønn, Regin, Christensen, Søren & Ekelund, Flemming, 2012, In: European Journal of Soil Biology. 50, p. 28-31 4 p.

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

  35. Published

    Specific antibiotics and nematode trophic groups agree in assessing fungal: bacterial activity in agricultural soil

    Christensen, Søren, Dam, M., Madsen, M. V., Petersen, S. O., Olesen, J. E. & Schjønning, P., 2012, In: Soil Biology & Biochemistry. 55, p. 17-19 3 p.

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

  36. Published

    Suppression of soil decomposers and promotion of long-lived, root herbivorous nematodes by climate change

    Andersen, K. S., Maraldo, K., Georgieva, S., Strandmark, L. B., Beier, Claus, Schmidt, Inger Kappel & Christensen, Søren, 2012, In: European Journal of Soil Biology. 52, p. 1-7 7 p.

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

  37. 2011
  38. 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

  39. 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

  40. Published

    Starved bacteria retain their size but lose culturability - lessons from a 5000 years old undisturbed A-horizon

    Vestergård, M., Ekelund, Flemming, Winding, A., Jacobsen, C. S. & Christensen, Søren, 2011, In: Soil Biology & Biochemistry. 43, 6, p. 1379-1382 4 p.

    Research output: Contribution to journal › Letter › Research › peer-review

  41. 2010
  42. Published

    Divergent composition but similar function of soil food webs of individual plants: plant species and community effects

    Bezemer, T. M., Fountain, M. T., Barea, J. M., Christensen, Søren, Dekker, S. C., Duyts, H., van Hal, R., Harvey, J. A., Hedlund, K., Maraun, M., Mikola, J., Mladenov, A. G., Robin, C., de Ruiter, P. C., Scheu, S., Setälä, H., Smilauer, P. & van der Putten, W. H., 2010, In: Ecology. 91, 10, p. 3027-36 10 p.

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

  43. 2009
  44. Published

    Empirical and theoretical challenges in aboveground-belowground ecology

    W.H. van der Putten, R.D. Bardgett, P.C. de Ruiter, W.H.G Hol, K.M. Meyer, T.M. Bezemer, Christensen, Søren, M.A. Bradford, M.B. Eppinga, T. Fukami, L. Hemerik, J. Molofsky, M. Schädler, C. Scherber, S.Y. Strauss, M. Vos, M. Vos & D.A. Wardle, 2009, In: Oecologia. 161, 1, p. 1-14

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

  45. Published

    Sustainable plant production in a changing world - a cross Faculty research network at KU

    Strandmark, L. B., Schjoerring, Jan K., Christensen, Søren, Nybroe, O., Pedersen, J. G. T., Eilenberg, Jørgen, Munk, Lisa, Rønn, Regin, Ciofu, Oana, Bruun, Sander & Ørum, Jens Erik, 2009.

    Research output: Contribution to conference › Poster › Research

  46. Published

    Sustainable plant production in a changing world - formation of a cross-faculty network

    Strandmark, L. B., Schjoerring, Jan K., Christensen, Søren, Nybroe, O., Torp, J., Eilenberg, Jørgen, Munk, Lisa, Rønn, Regin, Ciofu, Oana, Bruun, Sander & Ørum, Jens Erik, 2009, In: IOP Conference Series: Earth and Environmental Science. 6, Session 34, 2 p., 342014.

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

  47. 2008
  48. 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

  49. Published

    Long-term organic farming fosters below and aboveground biota: Implications for soil quality, biological control and productivity

    Birkhofer, K., Bezemer, T., Bloem, J., Bonkowski, M., Christensen, Søren, Ekelund, Flemming, Fließbach, A., Hedlund, K., Mikola, J., Robin, C., Mäder, P., Setälä, H., Tatin-Froux, F., Van der Putten, W. & Scheu, S., 2008, In: Soil Biology & Biochemistry. 40, 9

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

  50. Published

    Rhizosphere bacterial community composition responds to arbuscular mycorrhiza, but not to reductions in microbial activity induced by foliar cutting

    Madsen, M. V., Henry, F., Rangel-Castro, J. I., Michelsen, Anders, Prosser, J. I. & Christensen, Søren, 2008, In: FEMS Microbiology Ecology. 64, 1, p. 78-89 12 p.

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

  51. 2007
  52. Published

    Decomposer biomass in the rhizosphere to assess rhizodeposition

    Christensen, Søren, Bjørnlund, L. & Madsen, M. V., 2007, In: Oikos. 116, 1, p. 65-74 10 p.

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

  53. Published

    Evidence for Transient increase of rhizodeposition  following a severe defoliation of Plantago arenaria

    Henry, F., Madsen, M. V. & Christensen, Søren, 2007, In: Soil Biology & Biochemistry.

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

  54. Published

    Microfaunal Interactions in the Rhizosphere, How Nematodes and Protozoa Link Above- and Belowground Processes. Chapter 3

    Griffiths, B. S., Christensen, Søren & Bonkowski, M., 2007, The Rhizosphere: An Ecological Perspective (Zoe C. Cardon and Julie L. Whitbeck eds.). U.S.: Academic Press, p. 51-71

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  55. Published

    Natural forest stand dynamics in time and space - synthesis of research in Suserup Skov, Denmark and perspectives for forest management

    Hahn, K., Emborg, J., Vesterdal, L., Christensen, Søren, Bradshaw, R. H. W. & Raulund-Rasmussen, K., 2007, In:  Ecological Bulletins. 52

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

  56. Published

    Nematode migration and nutrient diffusion between vetch and barley material in soil

    Christensen, Søren, Alphei, J., Madsen, M. V. & Vestergaard, P., 2007, In: Soil Biology & Biochemistry. 39, 7, p. 1410-1417 8 p.

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

  57. 2006
  58. Published

    Soil fauna communities and microbial respiration in high Arctic tundra soils at Zackenberg, Northeast Greenland

    Sørensen, L. I., Holmstrup, M., Maraldo, K., Christensen, Søren & Christensen, B., 2006, In: Polar Biology. 29, 3, p. 189-195

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

  59. 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

  60. 2005
  61. Published

    Early decomposer assemblages of soil organisms in litterbags with vetch and rye roots

    Georgieva, S., Christensen, Søren, Petersen, H., Gjelstrup, P. & Thorup-Christensen, K., 2005, In: Soil Biology & Biochemistry. 37, 6, p. 1145-1155

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

  62. Published

    How does litter quality and site heterogeneity interact on decomposer food webs of a semi-natural forest?

    Strandmark, L. B. & Christensen, Søren, 2005, In: Soil Biology & Biochemistry. 37, 2, p. 203-213

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

  63. Published

    Nematode succession and microfauna-microorganism interactions during root residue decomposition

    Georgieva, S., Christensen, Søren & Andersen, K. S., 2005, In: Soil Biology & Biochemistry. 37, 10, p. 1763-1774

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

  64. 2004
  65. Published

    Aphid effects on rhizosphere microorganisms and microfauna depend more on barley growth phase than on soil fertilization

    Madsen, M. V., Strandmark, L. B. & Christensen, Søren, 2004, In: Oecologia. 141, 1, p. 84-93

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

  66. Published

    Distribution of protozoa in scots pine mycorrhizospheres

    Timonen, S., Christensen, Søren & Ekelund, Flemming, 2004, In: Soil Biology & Biochemistry. 36, p. 1987-1993

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

  67. Published

    Simulated herbivory effects on rhizosphere organisms in pea (Piusum sativum) depended om phosphate

    Techau, M. E. C., Bjørnlund, L. & Christensen, Søren, 2004, In: Plant and Soil. 264, p. 185-194

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

  68. Published

    Trophic interactions in changing landscapes: Responses of soil food webs

    Hedlund, K., Griffiths, B., Christensen, Søren, Scheu, S., Setala, H., Tscharntke, T. & Verhoef, H., 2004, In: Basic and Applied Ecology. 5, p. 495-503

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

  69. 2003
  70. Published

    Effects of elevated atmospheric CO2 on protozoan abundance in soil planted with wheat and on decomposition of wheat roots

    Rønn, Regin, Ekelund, Flemming & Christensen, Søren, 2003, In: Plant and Soil. 251, p. 13-21

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

  71. Published

    Interaction between foliar-feeding insects, mycorrhizal fungi, and rhizosphere protozoa on pea plants

    Wamberg, C., Christensen, Søren & Jakobsen, I., 2003, In: Pedobiologia. Vol. 47, issue 3, p. 281-287

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

  72. Published

    The mycorrhizal fungus (Glomus intraradices) affects microbial activity in the rhizosphere of pea plants (Pisum sativum)

    Wamberg, C., Christensen, Søren, Jakobsen, I., Müller, A. K. & Sørensen, Søren Johannes, 2003, In: Soil Biology & Biochemistry. Vol. 35, issue 10, p. 1349-1357

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

  73. 2002
  74. Published

    Nematode communities of natural and managed beech forests - a pilot study

    Strandmark, L. B., Madsen, M. V., Johansson, S., Nyborg, M., Steffensen, L. & Christensen, Søren, 2002, In: Pedobiologia. 46, 1, p. 53-62 10 p.

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

  75. Published

    Response of free-living soil protozoa to elevated atmospheric CO2 and presence of mycorrhiza

    Rønn, Regin, Gavito, M., Frederiksen, H. & Christensen, Søren, 2002, In: Soil Biology & Biochemistry. 34, p. 923-932

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

  76. Published

    The diversity and function of soil microbial communities exposed to different disturbances

    Müller, A. K., Westergaard, K., Christensen, Søren & Sørensen, S. J., 2002, In: Microbial Ecology. 44, p. 49-58

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

  77. 2001
  78. Published

    An examination of the biodiversity-ecosystem function relationship in arable soil microbial communities

    Griffiths, B. S., Ritz, K., Wheatley, R., Kuan, H. L., Boag, B., Christensen, Søren, Ekelund, Flemming, Sørensen, Søren Johannes, Muller, S. & Bloem, J., 2001, In: Soil Biology & Biochemistry. 33, 12-13, p. 1713-1722

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

  79. Published

    Combined assessment of methane oxidation and nitrification; an indicator of air-borne soil pollution?

    Christensen, Søren, Degórska, A. & Priemé, Anders, 2001, In: Biology and Fertility of Soils. 34, p. 325-333

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

  80. Published

    Distribution with depth of protozoa, bacteria, and fungi in soil profiles from three Danish forest sites

    Ekelund, Flemming, Rønn, Regin & Christensen, Søren, 2001, In: Soil Biology & Biochemistry. 33, p. 475-481

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

  81. Published

    Effect of elevated atmospheric CO2 and vegetation type on microbiota associated with decomposing straw

    Frederiksen, H. B., Rønn, Regin & Christensen, Søren, 2001, In: Global Change Biology. 7, p. 313-321

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

  82. Published

    Effects of tylosin as a disturbance on the soil microbial community

    Westergaard, K., Müller, A. K., Christensen, Søren & Sørensen, S. J., 2001, In: Soil Biology & Biochemistry. 33, p. 2061-2071

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

  83. Published

    Methane oxidation in Polish forest soils of contrasting atmospheric pollution

    Christensen, Søren, Degórska, A. & Priemé, Anders, 2001, In: Atmospheric Environment. 35, p. 2795-2798

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

  84. Published

    Natural perturbations, drying-wetting and freezing-thawing cycles, and the emission of nitrous oxide, carbon dioxide and methane from farmed organic soils

    Priemé, Anders & Christensen, Søren, 2001, In: Soil Biology & Biochemistry. 33, p. 2083-2091

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

  85. Published

    Reduced Particle size of plant material does not stimulate decomposition but affects the microbivorous microfauna

    Vestergaard, P., Rønn, Regin & Christensen, Søren, 2001, In: Soil Biology & Biochemistry. 33, 12-13, p. 1805-1810

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

  86. Published

    Savannebrande i Afrikas Sudan-Guineabælte

    Rasmussen, Kjeld, Christensen, Søren, Friis, Ib, Kjøller, A. H., Michelsen, Anders, Nielsen, T. T. & Saarnak, C. F. L., 2001, In: Den ny verden. 1, p. 7-26

    Research output: Contribution to journal › Journal article › Research

  87. Published

    The Effect of Long Term Mercury Pollution on the Soil Microbial Community

    Müller, A. K., Westergaard, K., Christensen, Søren & Sørensen, Søren Johannes, 2001, In: FEMS Microbiology Ecology. 36, 1, p. 11-19

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

  88. 2000
  89. Published

    Distribution of 3H within purine nucleotides of Ehrlich mouse ascites tumour cells after intraabdominal injection of myo-[2-3H]inositol

    Christensen, Søren, Klenow, H. & Overgaard-Hansen, K., 2000, In: Journal of Labelled Compounds and Radiopharmaceuticals. 43, 1, p. 91-96

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

  90. Published

    Ecosystem response of pasture soil communities to fumigation-induced microbial diversity reductions: an examination of the biodiversity-ecosystem function relationship

    Griffiths, B. S., Ritz, K., Bardgett, R. D., Cook, R., Christensen, Søren, Ekelund, Flemming, Sørensen, Søren Johannes, Bååth, E., Bloem, J., De Ruiter, P. C., Dolfing, J. & Nicolardot, B., 2000, In: Oikos. 90, 2, p. 279-294

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

  91. Published

    Herbivory by the wevil Strophosoma melanogrammum, causes severalfold increase in emission of monoterpenes from young Norway spruce (Picea abies)

    Priemé, Anders, Knudsen, T. B., Glasius, M. & Christensen, Søren, 2000, In: Atmospheric Environment. 34, p. 711-718

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

  92. Published

    Interactions between saprotrophic fungi, bacteria and protozoa on decomposing wheat roots in soil influenced by the fungicide fenpropimorph (Corbel); a field study

    Bjørnlund, L., Ekelund, Flemming, Christensen, Søren, Jacobsen, C. S., Krogh, P. H. & Johnsen, K., 2000, In: Soil Biology & Biochemistry. 32, p. 967-975

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

  93. Published

    Oxidation of atmospheric methane in Northern European soils, comparison with other ecosystems, and uncertainties in the global terrestrial sink

    Smith, K. A., Dobbie, K. E., Ball, B. C., Bakken, L. R., Sitaula, B. K., Hansen, S., Brumme, R., Borken, W., Christensen, Søren, Priemé, Anders, Fowler, D., MacDonald, J. A., Skiba, U., Klemedtsson, L., Kasimir-Klemedtsson, A., Degorska, A. & Orlanski, P., 2000, In: Global Change Biology. 6, 7, p. 791-803

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

  94. Published

     Effect of environmental change on the biodiversity and function of below-ground microbial communities (MICRODIVERS)

    Griffiths, B., Ritz, K., Bardgett, R., Cook, R., Christensen, Søren, Ekelund, Flemming, Sørensen, S., Bååth, E., Bloem, J., de Ruiter, P., Dolfing, J. & Nicolardot, B., 2000, Terrestrial ecosystem research in Europe: successes, challenges and policy. Sutton, MA., Moreno, JM., van der Putten, WH. & Struwe, S. (eds.). Luxembourg: European Commission, p. 115-116

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  95. 1999
  96. Published

    A preliminary estimation of the nitrogen compounds exchange between the atmosphere and a spruce forest

    Horváth, L., Christensen, Søren, Führer, E., Kelecsényi, S., Mészàros, R., Nagy, Z. & Weidinger, T., 1999, In: Idojaras - Quarterly journal of the Hungarian Meteorological Service. 103, 1, p. 1-17

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

  97. Published

    An automated technique for most-probable-number (MPN) analysis of densities of phagotrophic protists with lux-AB labelled bacteria as growth medium

    Ekelund, Flemming, Christensen, Søren, Rønn, Regin, Buhl, E. & Jacobsen, C. S., 1999, In: Journal of Microbiological Methods. 38, 3, p. 177-182

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

  98. Published

    Methane uptake by a selection of soils in Ghana with different land use

    Priemé, Anders & Christensen, Søren, 1999, In: Journal of Geophysical Research - Oceans. 104, 19, p. 23617-23622 6 p.

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

  99. 1998
  100. Published

    Nutrients limiting microbial growth in a tropical forest soil of Ghana under different management

    Duah-Yentumi, S., Rønn, Regin & Christensen, Søren, 1998, In: Applied Soil Ecology. 8, p. 19-24

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

  101. 1997
  102. Published

    Seasonal and spatial variation of methane oxidation in a Danish spruce forest.

    Priemé, Anders & Christensen, Søren, 1997, In: Soil Biology & Biochemistry. 29, p. 1165-1172

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

  103. Published

    Slow increase in rate of methane oxidation in soils with time, following land use change form arable agriculture to woodland.

    Priemé, Anders, Christensen, Søren, Dobbie, K. E. & Smith, K. A., 1997, In: Soil Biology & Biochemistry. 29, p. 1269-1273

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

  104. 1996
  105. 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

  106. Published

    Heterotrophic flagellates in soil, and their potential as bio-indicators

    Ekelund, Flemming & Christensen, Søren, 1996, Protistological Actualities, Proceedings of the Second European Congress of Protistology, Clermont-Ferrand, France - 21-26 July, Université Blaise Pascal de Clermont-Ferrand. Brugerolle, G. & J.-P., M. (eds.). France: Protistological Actualities, Proceedings of the Second European Congress of Protistology, Clermont-Ferrand, France - 21-26 July, Université Blaise Pascal de Clermont-Ferrand, p. 179-184

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  107. Published

    Nitrous oxide emission from an agricultural field determined from soil cover boxes and comparison with micrometeorological techniques

    Christensen, Søren, Ambus, P., Arah, J. R. M., Clayton, H., Galle, B., Griffin, D. W. T., Hargreaves, K. J., Klemedtsson, L., Klemedtsson, L., Lind, A., Maag, M., Scott, A., Skiba, U., Smith, K. A., Welling, M. & Wienhold, F. G., 1996, In: Atmospheric Environment. 30, p. 4183-4190

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

  108. Published

    Soil respiration profiles and protozoan enumeration agree as microbial growth indicators

    Christensen, Søren, Rønn, Regin, Ekelund, Flemming, Andersen, Bo Teglhus, Damgaard, J., Friberg-Jensen, U., Jensen, L., Kiil, H., Larsen, B., Larsen, Jørgen Bo, Riis, C., Thingsgaard, K., Thirup, C., Tom-Petersen, A. & Vesterdal, Lars, 1996, In: Soil Biology & Biochemistry. 28, 7, p. 865-868 4 p.

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

  109. Published

    Spatial distribution and successional pattern of microbial activity and microfaunal populations on decomposing barley roots

    Rønn, Regin, Griffiths, B. S., Ekelund, Flemming & Christensen, Søren, 1996, In: Journal of Applied Ecology. 32, p. 662-672

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

  110. Published

    Spatial variability in CH4 uptake in a danish forest soil and its relation to different managements techniques

    Priemé, Anders, Christensen, Søren, Galle, B., Klemedtsson, L. & Griffin, D. W. T., 1996, In: Atmospheric Environment. 30, p. 1375-1379

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

  111. 1995
  112. 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

  113. Published

    3H Thymidine incorporation technique to determine soil bacterial growth rate

    Christensen, H. & Christensen, Søren, 1995, Methods in applied soil microbiology and biochemistry. London: Academic Press, p. 258-261

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  114. Published

    Bacterial production determined by [3H]thymidine incorporation in field rhizospheres as evaluated by comparison to rhizodeposition

    Christensen, Henrik, Rønn, Regin, Ekelund, Flemming & Christensen, Søren, 1995, In: Soil Biology & Biochemistry. 27, 1, p. 93-99

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

  115. Published

    Effects on protozoa

    Ekelund, Flemming, Rønn, Regin, Christensen, Søren & Løkke, H., 1995, Effects of Pesticides on Meso- and Microfauna in Soil. Løkke, H. (ed.). Danish Ministry of the Environment, Environmental Protection Agency, p. 27-32 6 p.

    Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

  116. Published

    Optimizing soil extract and broth media for MPN enumeration of naked amoebae and heterotrophic Flagellates in soil

    Rønn, Regin, Ekelund, Flemming & Christensen, Søren, 1995, In: Pedobiologia. 39, p. 10-19

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

  117. Published

    Spatial and Seasonal Series of N2O and CH4 fluxes in Danish forest, grassland and agroecosystems

    Ambus, P. L. & Christensen, Søren, 1995, In: Journal of Environmental Quality. 24, p. 993-1001

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

  118. Published

     An interdisciplinary approach for studying greenhouse gases at the landscape scale

    Sitaula, B., Warner, W., Bakken, L., Hargreaves, K., Klemedtsson, L., Sitaula, J., Christensen, Søren & Priemé, Anders, 1995, In: Norwegian Journal of Agricultural Sciences. 9, 3-4, p. 189-209 21 p.

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

  119. 1994
  120. 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

  121. 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

  122. Published

    3Hthymidine incorporation of rhizosphere bacteria influenced by plant N-status

    Christensen, Henrik & Christensen, Søren, 1994, In: Plant and Soil. 162, 1, p. 113-116

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

  123. Published

    Decomposition patterns in barley root hot spots: Populations of protozoa and nematodes.

    Ekelund, Flemming, Rønn, Regin & Christensen, Søren, 1994, In: Journal of Eukaryotic Microbiology. 1, p. 1A

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

  124. Published

    Energy use and emission of greenhouse gases from grassland agriculture systems. Grasslands and Society

    Bakken, L. R., Refsgaard, K., Christensen, Søren & Vatn, A., 1994, Proceedings of European Grassland Society. Wageningen Press

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  125. Published

    Interactions between Chromobacterium violaceum and soil protozoa

    Rønn, Regin, Griffiths, B., Ekelund, Flemming & Christensen, Søren, 1994, In: Journal of Eukaryotic Microbiology. p. 8A

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

  126. Published

    The Effect of three different pesticides on soil protozoan activity

    Ekelund, Flemming, Rønn, Regin & Christensen, Søren, 1994, In: Pest Management Science. 42, p. 71-78

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

  127. 1993
  128. 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

  129. 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

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