Terrestrial Ecology

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  1. 1978
  2. Published

    Atmospheric heavy metal deposition in the Copenhagen area

    Andersen, A., Hovmand, Mads Frederik & Johnsen, I., 1978, In: Environmental Pollution (1970). 17, 2, p. 133-151 19 p.

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

  3. Published

    Metal concentrations in Danish arable soils

    Tjell, J. C. & Hovmand, Mads Frederik, 1978, In: Acta Agriculturae Scandinavica. 28, 1, p. 81-89 9 p.

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

  4. 1980
  5. Published

    Atmospheric long range transport of lead to Denmark.

    Hovmand, Mads Frederik, 1980, In: Tellus. 32, 1, p. 42-47 6 p.

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

  6. Published

    Percolation studies on denitrification

    Christensen, Søren, 1980, In: Acta Agriculturae Scandinavica. Section A. Animal Science. 30, p. 225-236

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

  7. 1981
  8. 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 sider

    Research output: Contribution to journal › Journal article › Research

  9. 1983
  10. Published

    N2O-formation during soil cropping

    Christensen, Søren, 1983.

    Research output: Contribution to conference › Paper › Research › peer-review

  11. 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. 531-536

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

  12. Published

    Nitrous oxide emission from the soil surface: Continuous measurement by gas chromatography

    Christensen, Søren, 1983, In: Soil Biology & Biochemistry. 15, p. 481-483

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

  13. 1985
  14. Published

    Denitrification in a sandy loam soil as influenced by climatic and soil conditions

    Christensen, Søren, 1985, In: Tidsskrift for Planteavl. 89, p. 351-365

    Research output: Contribution to journal › Journal article › Research

  15. 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. 757-764

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

  16. 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. 367-372

    Research output: Contribution to journal › Journal article › Research

  17. 1987
  18. 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. 269-273

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

  19. 1988
  20. 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. 217-221

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

  21. 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. 1409-1413

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

  22. 1990
  23. 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. 1-4

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

  24. Published

    Mycorrhizal symbiosis in Acacia-Commiphora bushland in Somalia and the significance of VA-mycorrhizal fungi for re-vegetation of degraded semi-arid areas

    Michelsen, Anders & Rosendahl, Søren, 1990, In: Mitteilungen aus dem Institut für Allgemeine Botanik, Hamburg. 23a, p. 387-394

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

  25. Published

    Propagule density of VA-mycorrhizal fungi in semi-arid bushland in Somalia

    Michelsen, Anders & Rosendahl, Søren, 1990, In: Agriculture, Ecosystems & Environment. 29, p. 295-301

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

  26. 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. 651-656

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

  27. Published

     The effect of VA mycorrhiza, phosphorus and drought stress on the growth of Acacia nilotica and Leucaena leucocephala seedlings

    Michelsen, Anders & Rosendahl, Søren, 1990, In: Plant and Soil. 124, p. 7-13

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

  28. 1991
  29. Published

    De encellede dyr

    Rønn, Regin & Ekelund, Flemming, 1991, In: Praktisk Økologi. 5, p. 20-24 5 p.

    Research output: Contribution to journal › Journal article › Research

  30. Published

    Et forgiftningstilfælde med Satans Rørhat

    Ekelund, Flemming, 1991, In: Svampe. 24, p. 1-2

    Research output: Contribution to journal › Journal article › Commissioned

  31. Published

    Hvordan får planterne næringsstoffer?

    Christensen, Søren, Christensen, H., Ekelund, Flemming & Rønn, Regin, 1991, In: Naturens Verden. 1991, 3

    Research output: Contribution to journal › Journal article › Research

  32. 1992
  33. Published

    Mycorrhiza and root nodulation in tree seedlings from five nurseries in Ethiopia and Somalia

    Michelsen, Anders, 1992, In: Forest Ecology and Management. 48, 3-4, p. 335-344 10 p.

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

  34. 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

  35. 1993
  36. Published

    Allelopathy in agroforestry systems: the effects of leaf extracts ofCupressus lusitanica and threeEucalyptus spp. on four Ethiopian crops

    Lisanework N. & Michelsen, Anders, 1993, In: Agroforestry Systems. 21, 1, p. 63-74

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

  37. Published

    Growth improvement of Ethiopian acacias by addition of vesicular-arbuscular mycorrhizal fungi or roots of native plants to non-sterile nursery soil

    Michelsen, Anders, 1993, In: Forest Ecology and Management. 59, p. 193-206

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

  38. Published

    Impacts of tree plantations in the Ethiopian highland on soil fertility, shoot and root growth, nutrient utilisation and mycorrhizal  colonisation

    Michelsen, Anders, Lisanework N. & Friis, Ib, 1993, In: Forest Ecology and Management. 61, p. 299-324

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

  39. Published

    The mycorrhizal status of vascular epiphytes in Bale Mountains National Park, Ethiopia

    Michelsen, Anders, 1993, In: Mycorrhiza. 4, p. 11-15

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

  40. 1994
  41. 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

  42. 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

  43. 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

  44. Published

    Litterfall and nutrient release by decomposition in three plantations compared to a natural forest in the Ethiopian highland

    Lisanework N. & Michelsen, Anders, 1994, In: Forest Ecology and Management. 65, p. 149-164

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

  45. 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

  46. Published

    The influence of vesicular-arbuscular mycorrhizal fungi on the nitrogen fixation of nursery-grown Ethiopian acacias estimated by the 15N natural abundance method

    Michelsen, Anders & Sprent, J. I., 1994, In: Plant and Soil. 160, p. 249-257

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

  47. 1995
  48. 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

  49. 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

  50. Published

    Flagellates from an australian garden soil

    Ekelund, Flemming & Rønn, Regin, 1995, In: Journal of Eukaryotic Microbiology. 42, p. 8A (abstract 40)

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

  51. Published

    Heterotrophic flagellates in soil

    Ekelund, Flemming & Rønn, Regin, 1995, In: European Journal of Protistology. 31, p. 111 (abstract 7)

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

  52. Published

    Inhibition of growth and effects on nutrient uptake of arctic graminoids by leaf extracts - allelopathy or resource competition between plants and microbes?

    Michelsen, Anders, Schmidt, Inger Kappel, Jonasson, S. E., Dighton, J., Jones, H. E. & Callaghan, T. V., 1995, In: Oecologia. 103, p. 407-418

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

  53. 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

  54. 1996
  55. Published

    Comparisons of understorey vegetation and soil fertility in plantations and adjacent natural forests in the Ethiopian highlands

    Michelsen, Anders, Lisanework N., Friis, Ib & Holst, N., 1996, In: Journal of Applied Ecology. 33, p. 627-642

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

  56. Published

    Effects of carbohydrate amendments on  nutrient partitioning, plant and microbial performance of a grassland-shrub ecosystem

    Jonasson, S. E., Vestergaard, P., Jensen, M. & Michelsen, Anders, 1996, In: Oikos. 75, p. 220-226

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

  57. Published

    Growth kinetics of five common heterotrophic soil flagellates. Eur. J. Soil Biology

    Ekelund, Flemming, 1996, In: European Journal of Soil Biology. 32, p. 15-24

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

  58. Published

    Growth properties of six common heterotrophic soil flagellates

    Ekelund, Flemming, 1996, In: Journal of Eukaryotic Microbiology. 1, p. 24A

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

  59. 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

  60. Published

    Leaf 15N abundance of subarctic plants provides field evidence that ericoid, ectomycorrhizal and non- and arbuscular mycorrhizal species access different sources of soil nitrogen

    Michelsen, Anders, Schmidt, Inger Kappel, Jonasson, S. E., Quarmby, C. & Sleep, D., 1996, In: Oecologia. 105, p. 53-63

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

  61. Published

    Microbial biomass C, N and P in two arctic soils and responses to addition of NPK fertilizer and sugar: Implications for plant nutrient uptake

    Jonasson, S. E., Michelsen, Anders, Schmidt, Inger Kappel, Nielsen, E. V. & Callaghan, T. V., 1996, In: Oecologia. 106, p. 507-515

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

  62. 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

  63. Published

    Nutrient cycling in Subarctic and Arctic ecosystems, with special reference to the Abisko and Tornetrask region

    Jonasson, S. & Michelsen, Anders, 1996, Plant Ecology in the Subarctic Swedish Lapland . p. 45-52 8 p. (Ecological Bulletins - Sweden).

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

  64. Published

    Plant nutrition and nutrient cycling in the Subarctic, with special reference to the Abisko and Torneträsk area

    Michelsen, Anders & Jonasson, S. E., 1996, Ecological Bullletins. Vol. 45. p. 45-52

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

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