Søren Christensen
Guest Researcher
Terrestrial Ecology
Universitetsparken 15
2100 København Ø
- 2024
- 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
- 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
- 2021
- 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
- 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
- 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
- 2019
- 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
- 2018
- 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
- 2017
- 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
- 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
- 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
- 2016
- 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
- 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
- 2015
- 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
- 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, , 2015, In: Global Change Biology. 21, 2, p. 973-985 13 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2014
- 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
- 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
- 2013
- 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
- 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, 2013Research output: Other contribution › Research
- 2012
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 2011
- 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, , 2011, Nitrogen & global change: key findings - future challenges. 2 p.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research
- 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, , 2011, In: Global Change Biology. 17, 5, p. 1884-1899 16 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 2010
- 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
- 2009
- 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. 1-14Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- 2008
- 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, , 2008.Research output: Contribution to conference › Conference abstract for conference › Research
- 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, 9Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 2007
- 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
- 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
- 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. 51-71Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 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. 52Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 2006
- 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. 189-195Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 2005
- 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. 1145-1155Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 203-213Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1763-1774Research output: Contribution to journal › Journal article › Research › peer-review
- 2004
- 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. 84-93Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Distribution of protozoa in scots pine mycorrhizospheres
Timonen, S., Christensen, Søren & Ekelund, Flemming, 2004, In: Soil Biology & Biochemistry. 36, p. 1987-1993Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 185-194Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 495-503Research output: Contribution to journal › Journal article › Research › peer-review
- 2003
- 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. 13-21Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 281-287Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1349-1357Research output: Contribution to journal › Journal article › Research › peer-review
- 2002
- 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
- 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. 923-932Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 49-58Research output: Contribution to journal › Journal article › Research › peer-review
- 2001
- 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. 1713-1722Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 325-333Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 475-481Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 313-321Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 2061-2071Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Methane oxidation in Polish forest soils of contrasting atmospheric pollution
Christensen, Søren, Degórska, A. & Priemé, Anders, 2001, In: Atmospheric Environment. 35, p. 2795-2798Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 2083-2091Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1805-1810Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 7-26Research output: Contribution to journal › Journal article › Research
- 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. 11-19Research output: Contribution to journal › Journal article › Research › peer-review
- 2000
- 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. 91-96Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 279-294Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 711-718Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 967-975Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 791-803Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 115-116Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 1999
- 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. 1-17Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 177-182Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 1998
- 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. 19-24Research output: Contribution to journal › Journal article › Research › peer-review
- 1997
- Published
Seasonal and spatial variation of methane oxidation in a Danish spruce forest.
Priemé, Anders & Christensen, Søren, 1997, In: Soil Biology & Biochemistry. 29, p. 1165-1172Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1269-1273Research output: Contribution to journal › Journal article › Research › peer-review
- 1996
- 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
- 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. 179-184Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 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. 4183-4190Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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. 662-672Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1375-1379Research output: Contribution to journal › Journal article › Research › peer-review
- 1995
- 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
- 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. 258-261Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 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. 93-99Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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. 10-19Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 993-1001Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 1994
- 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
- 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
- Published
3Hthymidine incorporation of rhizosphere bacteria influenced by plant N-status
Christensen, Henrik & Christensen, Søren, 1994, In: Plant and Soil. 162, 1, p. 113-116Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1AResearch output: Contribution to journal › Conference abstract in journal › Research
- 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 PressResearch output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- Published
Interactions between Chromobacterium violaceum and soil protozoa
Rønn, Regin, Griffiths, B., Ekelund, Flemming & Christensen, Søren, 1994, In: Journal of Eukaryotic Microbiology. p. 8AResearch output: Contribution to journal › Conference abstract in journal › Research
- Published
The Effect of three different pesticides on soil protozoan activity
Ekelund, Flemming, Rønn, Regin & Christensen, Søren, 1994, In: Pest Management Science. 42, p. 71-78Research output: Contribution to journal › Journal article › Research › peer-review
- 1993
- 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
- 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
- Published
Early spring nitrogen dynamies in a temperate forest landscape
Groffman, P., Zau, D. R., Christensen, Søren, Mosier, A. & Tiedje, J. M., 1993, In: Ekologia. 74, p. 1579-1585Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Protozoa and nematodes on decomposing barley roots
Griffiths, B. S., Ekelund, Flemming, Rønn, Regin & Christensen, Søren, 1993, In: Soil Biology & Biochemistry. 25, p. 1293-1295Research output: Contribution to journal › Journal article › Research › peer-review
- 1992
- 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
- Published
Bacterial incorporation of tritiated thymidine and populations of bacteriophagous fauna in the rhizosphere of wheat
Christensen, Henrik, Griffiths, B. & Christensen, Søren, 1992, In: Soil Biology & Biochemistry. 24, 7, p. 703-709Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Huge increases in bacterivores on freshly killed barley roots
Christensen, Søren, Griffiths, B., Ekelund, Flemming & Rønn, Regin, 1992, In: FEMS Microbiology Ecology. 86, 4, p. 303-310Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Local increase in protozoan numbers of decomposing barley roots in soil
Rønn, Regin, Ekelund, Flemming, Christensen, Søren & Griffiths, B., 1992, In: European Journal of Protistology. 3, p. 355 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
- Published
Soil Protozoa as indicators for side effects of Pesticides
Ekelund, Flemming, Rønn, Regin & Christensen, Søren, 1992, In: European Journal of Protistology. 3, p. 338 1 p.Research output: Contribution to journal › Conference abstract in journal › Research
- 1991
- Published
Decomposability of recalcitrant soil carbon assessed by denitrification
Christensen, Søren, 1991, In: FEMS Microbiology Ecology. 82, p. 267-274Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Hvordan får planterne næringsstoffer?
Christensen, Søren, Christensen, H., Ekelund, Flemming & Rønn, Regin, 1991, In: Naturens Verden. 1991, 3Research output: Contribution to journal › Journal article › Research
- Published
Organic matter available for denihification in different soil fractions: Effect of freezel thaw cycles and straw disposal
Christensen, Søren & Christensen, B. T., 1991, In: JOURNAL OF SOIL SCIENCE. 42Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Rhizosphere Denitrification, a minor process but indicator of decomposition activity
Christensen, Søren, Groffman, P. M., Mosier, A. & Zak, D. R., 1991, Denitrification in Soils and Sediments. New York: Plenum Publishing Corporation, p. 199-211Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
- 1990
- Published
Brief and vigorous N2O production by soil at spring thaw
Christensen, Søren & Tiedje, J. M., 1990, In: European Journal of Soil Science. 41, 1, p. 1-4Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Spatial Variability in denitrification:Dependency of activity centers on the Soil Environment
Christensen, Søren, Simmins, S. & Tiedje, J. M., 1990, In: Soil Science Society of America Journal. 54, p. P1608-13Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Temporal patterns of Soil denitrification, their stability and causes
Christensen, Søren, Simmins, S. & Tiedje, J. M., 1990, In: Soil Science Society of America Journal. 54, p. 1614-18Research output: Contribution to journal › Journal article › Research › peer-review
- Published
The vernal dam: Plant-microbe competition for nitrogen in northern hardwood forests
Zak, D., Groffman, P., Pregitzer, K. S., Christensen, Søren & Tiedje, J. M., 1990, In: Ekologia. 71, p. 651-656Research output: Contribution to journal › Journal article › Research › peer-review
- 1988
- Published
Oxygen control prevents denitrifyers and barley plant roots from directly competing for nitrate
Christensen, Søren & Tiedje, J. M., 1988, In: FEMS Microbiology Ecology. 53, p. 217-221Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Sub-parts per billion nitrate method: Use of an N2O-producing denitrifier to convert NO3- or 15NO3- to N2O
Christensen, Søren & Tiedje, J. M., 1988, In: Applied and Environmental Microbiology. 54, p. 1409-1413Research output: Contribution to journal › Journal article › Research › peer-review
- 1987
- Published
The effect of grass maturing and root decay on N2O production in soil
Bech, H. & Christensen, Søren, 1987, In: Plant and Soil. 103, p. 269-273Research output: Contribution to journal › Journal article › Research › peer-review
- 1985
- Published
Denitrification in a sandy loam soil as influenced by climatic and soil conditions
Christensen, Søren, 1985, In: Tidsskrift for Planteavl. 89, p. 351-365Research output: Contribution to journal › Journal article › Research
- Published
Denitrification in an acid soil: Effects of slurry and potassium nitrate on the evolution of nitrous oxide and on nitrate-reducing bacteria
Christensen, Søren, 1985, In: Soil Biology & Biochemistry. 17, p. 757-764Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Seasonal variation in numbers and activity of denitrifying bacteria in soil; taxonomy and physiological groups among isolates
Christensen, Søren, 1985, In: Tidsskrift for Planteavl. 89, p. 367-372Research output: Contribution to journal › Journal article › Research
- 1983
- Published
N2O-formation during soil cropping
Christensen, Søren, 1983.Research output: Contribution to conference › Paper › Research › peer-review
- Published
Nitrous oxide emission from a soil under permanent grass: Seasonal and diurnal fluctuations as influenced by manuring and fertilization
Christensen, Søren, 1983, In: Soil Biology & Biochemistry. 15, p. 531-536Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Nitrous oxide emission from the soil surface: Continuous measurement by gas chromatography
Christensen, Søren, 1983, In: Soil Biology & Biochemistry. 15, p. 481-483Research output: Contribution to journal › Journal article › Research › peer-review
- 1981
- Published
Metodik ved automatisk registrering af temperatur og fugtighed i jord (Methods for automatically recording soil temperature and moisture, in Danish
Christensen, Søren, Helweg, A. & Lind, A., 1981, In: Beretning S 1548 i Tidsskrift for Planteavls Specialserie. p. 15 siderResearch output: Contribution to journal › Journal article › Research
- 1980
- Published
Percolation studies on denitrification
Christensen, Søren, 1980, In: Acta Agriculturae Scandinavica. Section A. Animal Science. 30, p. 225-236Research output: Contribution to journal › Journal article › Research › peer-review
ID: 7305
Most downloads
-
2028
downloads
Multi-factor climate change effects on insect herbivore performance
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
1256
downloads
Disturbance promotes non-indigenous bacterial invasion in soil microcosms: analysis of the roles of resource availability and community structure
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
939
downloads
The Biological Time Machine - Biological responses to multiple environmental and climatic changes: Environment and Stress, Ph.d. symposium at KVL October 2006
Research output: Contribution to conference › Conference abstract for conference › Research
Published