Kaj Sand-Jensen

Kaj Sand-Jensen

Professor


  1. 2024
  2. Published

    Hourly methane and carbon dioxide fluxes from temperate ponds

    Sø, Jonas Stage, Martinsen, Kenneth Thorø, Kragh, T. & Sand-Jensen, Kaj, 2024, In: Biogeochemistry. 167, p. 177-195 19 p.

    Research output: Contribution to journalJournal articlepeer-review

  3. Published

    Water quality in a shallow eutrophic lake is unaffected by extensive thinning of planktivorous and benthivorous fish species

    Polauke, E., Sø, Jonas Stage, Carl, Henrik, Møller, Peter Rask, Reitzel, K., Sand-Jensen, Kaj & Kragh, T., 2024, In: Journal of Environmental Management. 356

    Research output: Contribution to journalJournal articlepeer-review

  4. 2023
  5. Published

    Nyt udstyr måler tabene af metan og CO2 fra søer

    Sø, Jonas Stage, Sand-Jensen, Kaj, Martinsen, Kenneth Thorø & Kragh, T., 25 May 2023, Videnskab.dk.

    Research output: Other contributionNet publication - Internet publicationCommunication

  6. Published

    Environmental predictors of lake fish diversity across gradients in lake age and spatial scale

    Martinsen, Kenneth Thorø, Kristensen, E., Båstrup-Spohr, Lars, Søndergaard, M., Carl, Henrik, Jeppesen, E., Sand-Jensen, Kaj & Kragh, T., 2023, In: Freshwater Biology. 68, 7, 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  7. Published

    Methane and carbon dioxide fluxes at high spatiotemporal resolution from a small temperate lake

    Sø, Jonas Stage, Sand-Jensen, Kaj, Martinsen, Kenneth Thorø, Polauke, E., Kjær, Johan Emil, Reitzel, K. & Kragh, T., 2023, In: Science of the Total Environment. 878, 11 p., 162895.

    Research output: Contribution to journalJournal articlepeer-review

  8. Published

    Predicting lake bathymetry from the topography of the surrounding terrain using deep learning

    Martinsen, Kenneth Thorø, Sand-Jensen, Kaj & Selvan, Raghav, 2023, In: Limnology and Oceanography: Methods. 21, 10, p. 625-636

    Research output: Contribution to journalJournal articlepeer-review

  9. 2022
  10. Published

    Biologer: Sådan sikrer vi biodiversiteten ved vådlægning af lavbundsjorde

    Bruun, Hans Henrik & Sand-Jensen, Kaj, 8 Mar 2022, In: Altinget.

    Research output: Contribution to journalContribution to newspaper - Comment/debate

  11. Published

    CO2 i Skandinaviens vandløb analyseret med maskinlæring

    Martinsen, Kenneth Thorø & Sand-Jensen, Kaj, 2022, In: Vand & Jord. 5, p. 207-210

    Research output: Contribution to journalJournal article

  12. Published

    Danmarks Biodiversitet: før, nu og I morgen

    Sand-Jensen, Kaj & Schou, J. C., 2022, 1 ed. København: Gad. 240 p.

    Research output: Book/ReportBook

  13. Published

    Ecosystem Metabolism and Gradients of Temperature, Oxygen and Dissolved Inorganic Carbon in the Littoral Zone of a Macrophyte-Dominated Lake

    Martinsen, Kenneth Thorø, Zak, N. B., Båstrup-Spohr, Lars, Kragh, T. & Sand-Jensen, Kaj, 2022, In: Journal of Geophysical Research: Biogeosciences. 127, 12, 15 p., e2022JG007193.

    Research output: Contribution to journalJournal articlepeer-review

  14. Published

    Environmental drivers and sources of stream oxygen consumption in an agricultural lake catchment

    Sø, Jonas Stage, Kragh, T., Sand-Jensen, Kaj & Martinsen, Kenneth Thorø, 2022, In: Ecological Engineering. 176, 11 p., 106516.

    Research output: Contribution to journalJournal articlepeer-review

  15. Published

    Intelligente computersystemer i økologien

    Sand-Jensen, Kaj, Martinsen, Kenneth Thorø & Kragh, T., 2022, In: Aktuel Naturvidenskab. 5, p. 16-19

    Research output: Contribution to journalJournal article

  16. Published

    Photosynthesis, growth, and distribution of plants in lowland streams — A synthesis and new data analyses of 40 years research

    Sand-Jensen, Kaj, Riis, T. & Martinsen, Kenneth Thorø, 2022, In: Freshwater Biology. 67, 7, p. 1255-1271 17 p.

    Research output: Contribution to journalJournal articlepeer-review

  17. Published

    Physiological Adaptation and Plant Distribution along a Steep Hydrological Gradient

    Sand-Jensen, Kaj, Borum, Jens, Møller, C. L. & Båstrup-Spohr, Lars, 2022, In: Plants. 11, 13, 12 p., 1683.

    Research output: Contribution to journalJournal articlepeer-review

  18. Published

    Predicting water quality from geospatial lake, catchment, and buffer zone characteristics in temperate lowland lakes

    Martinsen, Kenneth Thorø & Sand-Jensen, Kaj, 2022, In: Science of the Total Environment. 851, 12 p., 158090.

    Research output: Contribution to journalJournal articlepeer-review

  19. Published

    Removal of chromophoric dissolved organic matter under combined photochemical and microbial degradation as a response to different irradiation intensities

    Kragh, T., Sand-Jensen, Kaj, Kristensen, E., Pedersen, Ole & Madsen-Østerbye, M., 2022, In: Journal of Environmental Sciences. 118, p. 76-86

    Research output: Contribution to journalJournal articlepeer-review

  20. Published

    Stream-Lake Connectivity Is an Important Control of Fluvial CO2 Concentrations and Emissions in Catchments

    Sand-Jensen, Kaj, Riis, T., Kjær, Johan Emil & Martinsen, Kenneth Thorø, 2022, In: Earth and Space Science. 9, 12, 12 p., e2022EA002664.

    Research output: Contribution to journalJournal articlepeer-review

  21. Published

    Vandløbenes CO2-overmætning og biodiversitet

    Sand-Jensen, Kaj, Martinsen, Kenneth Thorø, Kjær, Johan Emil, Sø, Jonas Stage, Baumane, Marta, Kragh, T., Båstrup-Spohr, Lars, Bruun, Hans Henrik & Riis, T., 2022, In: Vand & Jord. 2, p. 44-48

    Research output: Contribution to journalJournal article

  22. Published

    Wind drives fast changes of light climate in a large, shallow re-established lake

    Martinsen, Kenneth Thorø, Kragh, T., Sand-Jensen, Kaj, Madsen-Østerbye, M., Kristensen, E. & Sø, Jonas Stage, 2022, In: Science of the Total Environment. 806, 3, 11 p., 151354.

    Research output: Contribution to journalJournal articlepeer-review

  23. 2021
  24. Published

    Optimal physical design in a new lake for reducing phosphorus pools

    Sø, Jonas Stage, Sand-Jensen, Kaj & Kragh, T., 1 Mar 2021, In: Ecological Engineering. 161, 11 p., 106160.

    Research output: Contribution to journalJournal articlepeer-review

  25. Published

    Bregner: sjældent spændende

    Sand-Jensen, Kaj & Schou, J. C., 2021, In: URT. 3, p. 6-13 7 p.

    Research output: Contribution to journalJournal article

  26. Published

    Century-long records reveal shifting challenges to seagrass recovery

    Krause-Jensen, D., Duarte, C. M., Sand-Jensen, Kaj & Carstensen, J., 2021, In: Global Change Biology. 27, 3, p. 563-575 13 p.

    Research output: Contribution to journalJournal articlepeer-review

  27. Published

    Den fattige egn med den rige flora

    Schou, J. C. & Sand-Jensen, Kaj, 2021, In: URT. 4, p. 12-22

    Research output: Contribution to journalJournal article

  28. Published

    Drier, darker and more fertile: 140 years of plant habitat change driven by land-use intensification

    Nielsen, T. F., Sand-Jensen, Kaj & Bruun, Hans Henrik, 2021, In: Journal of Vegetation Science. 32, 4, 16 p., e13066.

    Research output: Contribution to journalJournal articlepeer-review

  29. Published

    Hvilken natur kan vi få på våde lavbundsjorde?

    Sand-Jensen, Kaj, Baumane, Marta, Båstrup-Spohr, Lars & Bruun, Hans Henrik, 2021, In: Aktuel Naturvidenskab. 2021, 6, p. 28-33

    Research output: Contribution to journalJournal article

  30. Published

    Kalken i naturens processer

    Sand-Jensen, Kaj, Sø, Jonas Stage, Kristensen, E. & Kragh, T., 2021, In: Aktuel Naturvidenskab. 1, p. 16-20

    Research output: Contribution to journalJournal article

  31. Published

    Klimagasser: fra landjorden, over vandløb og søer til kystvande

    Sand-Jensen, Kaj, Kjær, Johan Emil, Martinsen, Kenneth Thorø, Sø, J. S. & Kragh, T., 2021, In: Vand & Jord. 4, p. 150-154

    Research output: Contribution to journalJournal article

  32. Published

    Kurvblomstfamilien: vi er mest til åbne vidder

    Sand-Jensen, Kaj & Schou, J. C., 2021, In: URT. 1, p. 8-13 6 p.

    Research output: Contribution to journalJournal article

  33. Published

    Large pools and fluxes of carbon, calcium and phosphorus in dense charophyte stands in ponds

    Sand-Jensen, Kaj, Martinsen, Kenneth Thorø, Jakobsen, A. L., Sø, Jonas Stage, Madsen-Østerbye, M., Kjær, J. E., Kristensen, E. & Kragh, T., 2021, In: Science of the Total Environment. 765, 12 p., 142792.

    Research output: Contribution to journalJournal articlepeer-review

  34. Published

    Nye søer forbedrer natur og miljø

    Sand-Jensen, Kaj, 2021, In: Aktuel Naturvidenskab. 4, p. 20-25

    Research output: Contribution to journalJournal article

  35. 2020
  36. Published

    Drivhusgasser fra nye søer

    Davidson, T., Martinsen, Kenneth Thorø, Audet, J., Levi, E. E., Deng, J., Søndergaard, M., Egemose, S., Båstrup-Spohr, Lars & Sand-Jensen, Kaj, Dec 2020, In: Vand & Jord. 27, 4, p. 146-150

    Research output: Contribution to journalJournal article

  37. Published

    Vådområder bidrager markant til CO2-udledningen

    Sand-Jensen, Kaj, Martinsen, Kenneth Thorø & Borum, Jens, 12 Jun 2020, In: Ingeniøren.

    Research output: Contribution to journalContribution to newspaper - Feature article

  38. Published

    Fiskeskæl fra 1930 fik vildlaksen tilbage i Skjern Å

    Sand-Jensen, Kaj & Schou, J. C., 27 Jan 2020, In: Vejle Amts Folkeblad.

    Research output: Contribution to journalContribution to newspaper - Comment/debate

  39. Published

    Fiskeskæl fra 1930 fik laksen tilbage i Skjern Å

    Sand-Jensen, Kaj & Schou, J. C., 19 Jan 2020, In: Avisen Danmark. 1 p.

    Research output: Contribution to journalContribution to newspaper - Feature article

  40. Published

    Carbon Dioxide Partial Pressure and Emission Throughout the Scandinavian Stream Network

    Martinsen, Kenneth Thorø, Kragh, T. & Sand-Jensen, Kaj, 2020, In: Global Biogeochemical Cycles. 34, 12, 14 p., e2020GB006703.

    Research output: Contribution to journalJournal articlepeer-review

  41. Published

    Carbon dioxide efflux and ecosystem metabolism of small forest lakes

    Martinsen, Kenneth Thorø, Kragh, T. & Sand-Jensen, Kaj, 2020, In: Aquatic Sciences. 82, 17 p., 9.

    Research output: Contribution to journalJournal articlepeer-review

  42. Published

    Early fish colonization and community development in a shallow re-established lake

    Kristensen, E., Sand-Jensen, Kaj, Kristensen, J. S. B., Pedersen, M. E., Båstrup-Spohr, Lars & Kragh, T., 2020, In: Ecological Engineering. 155, 9 p., 105956.

    Research output: Contribution to journalJournal articlepeer-review

  43. Published

    Fingerprinting pike: the use of image recognition to identify individual pikes

    Kristensen, E., Sand-Jensen, Kaj, Martinsen, Kenneth Thorø, Madsen-Østerbye, M. & Kragh, T., 2020, In: Fisheries Research. 229, 8 p., 105622.

    Research output: Contribution to journalJournal articlepeer-review

  44. Published

    Fisk i nye søer

    Kristensen, E., Sand-Jensen, Kaj, Kragh, T., Martinsen, Kenneth Thorø, Båstrup-Spohr, Lars, Søndergaard, M. & Jeppesen, E., 2020, In: Vand & Jord. 27, 4, p. 156-160

    Research output: Contribution to journalJournal article

  45. Published

    From drought to flood: Sudden carbon inflow causes whole-lake anoxia and massive fish kill in a large shallow lake

    Kragh, T., Martinsen, Kenneth Thorø, Kristensen, E. & Sand-Jensen, Kaj, 2020, In: Science of the Total Environment. 739, 12 p., 140072.

    Research output: Contribution to journalJournal articlepeer-review

  46. Published

    Fuglesamfund i spritnye og naturlige søer

    Møller, M. J., Sand-Jensen, Kaj & Kragh, T., 2020, In: Vand & Jord. 27, 4, p. 161-165

    Research output: Contribution to journalJournal article

  47. Published

    Fysisk design af nye søer kan reducere fosforpuljen og tilgodese biodiversiteten

    Sø, Jonas Stage, Kragh, T. & Sand-Jensen, Kaj, 2020, In: Vand & Jord. 27, 4, p. 142-145

    Research output: Contribution to journalJournal article

  48. Published

    Fødekæder i nye søer

    Jeppesen, E., Kristensen, E., Shurkhuu, T., Lauridsen, T. L., Sø, Jonas Stage, Borum, Jens, Kragh, T., Båstrup-Spohr, Lars, Egemose, S., Sand-Jensen, Kaj & Søndergaard, M., 2020, In: Vand & Jord. 27, 4, p. 166-169

    Research output: Contribution to journalJournal article

  49. Published

    Kulstofbalancer og CO2 afgasning i danske søer og vandløb

    Martinsen, Kenneth Thorø, Sand-Jensen, Kaj & Kragh, T., 2020, In: Vand & Jord. 27, 1, p. 37-40

    Research output: Contribution to journalJournal article

  50. Published

    Med lup om halsen: og flora i hånden

    Schou, J. C. & Sand-Jensen, Kaj, 2020, In: URT. 44, 4, p. 14-19

    Research output: Contribution to journalJournal article

  51. Published

    Ny natur på opgivne lavbundsjorde

    Sand-Jensen, Kaj & Schou, J. C., 2020, In: URT. 44, 2, p. 16-20

    Research output: Contribution to journalJournal article

  52. Published

    Nye søer - borgerinteresse, økologi og biodiversitet

    Sand-Jensen, Kaj, 2020, In: Vand & Jord. 27, 4, p. 118-121

    Research output: Contribution to journalEditorial

  53. Published

    Nye søer nu og i fremtiden

    Sand-Jensen, Kaj, Søndergaard, M. & Egemose, S., 2020, In: Vand & Jord. 27, 4, p. 122-126

    Research output: Contribution to journalJournal article

  54. Published

    Sådan kan nye søer planlægges

    Sand-Jensen, Kaj, Egemose, S. & Søndergaard, M., 2020, In: Vand & Jord. 27, 4, p. 170-172

    Research output: Contribution to journalJournal article

  55. Published

    Temporal development of biodiversity of macrophytes in newly established lakes

    Sø, Jonas Stage, Sand-Jensen, Kaj & Båstrup-Spohr, Lars, 2020, In: Freshwater Biology. 65, 3, p. 379-389

    Research output: Contribution to journalJournal articlepeer-review

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