Helge Ro-Poulsen
Emeritus
- 2005
- Published
Ambient UV-radiation decreases photosynthetic performance on High Arctic plants
Albert, K., Ro-Poulsen, Helge & N. Mikkelsen, T., 2005.Research output: Contribution to conference › Conference abstract for conference › Research
- Published
Ambient ultraviolet radiation in the Arctic reduces root biomass and alters microbial community composition but has no effects on microbial biomass
Rinnan, R., Keinänen, M. M., Kasurinen, A., Asikainen, J., Kekki, T. K., Holopainen, T., Ro-Poulsen, Helge, Mikkelsen, T. N. & Michelsen, Anders, 2005, In: Global Change Biology. 11, 4, p. 564 - 574Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Effects of Reducing the Ambient UV-B Radiation in the High Arctic on Salix arctica and Vaccinium uliginosum.
Albert, K., Ro-Poulsen, Helge, Mikkelsen, T. N., Bredahl, L. & Haakansson, K. B., 2005, In: Phyton. 45, 4, p. 41-49Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Effects of ambient versus reduced UV-B radiation on high arctic Salix arctica assessed by measurements and calculations of chlorophyll a fluorescence parameters from fluorescence transients
Albert, K., Mikkelsen, T. N. & Ro-Poulsen, Helge, 2005, In: Physiologia Plantarum : An International Journal for Plant Biology. 124, 2, p. 208-226Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Monitoring effects of UV-B radiation on high arctic vegetation
Albert, K. R., Ro-Poulsen, Helge, Mikkelsen, T. N., Håkansson, K. B., Bredahl, L. & Rinnan, R., 2005, Zackenberg Ecological Research Operations, 10th Annual Report, 2004. Copenhagen K: Danish Polar Center, p. 68-70Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Communication
- 2004
- Published
Effects of UV-B radiation on vegetation in Zackenberg: In Rasch, M. and Caning, K. (eds.) Zackenberg Ecological Research Operations, 9th Annual Report, 2003. - Copenhagen, Danish Polar Center, Ministry of Science, Technology and Innovation
Ro-Poulsen, Helge, N. Mikkelsen, T., Bredahl, L., Albert, K., B. Håkansson, K. & Rinnan, R., 2004Research output: Book/Report › Report › Communication
- Published
Five-year measurements of ozone fluxes to a Danish Norway spruce canopy
Mikkelsen, T. N., Ro-Poulsen, Helge, Hovmand, Mads Frederik, Jensen, N. O., Pilegaard, K. & Egeløv, A. H., 2004, In: Atmospheric Environment. 38, 15, p. 2361-2371 11 p.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Growing-season carbon dioxide flux in a dry subarctic heath: Responses to long-term manipulations
Illeris, L., Kønig, S. M., Grogan, P., Jonasson, S. E., Michelsen, Anders & Ro-Poulsen, Helge, 2004, In: Arctic, Antarctic, and Alpine Research. 36, p. 456-463Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Monitering af UV-belastningen af vegetationen i Zackenberg. Tre års undersøgelser af UV-B effekter på højarktisk vegetation i NØ-Grøndland, Zackenberg. Opsummerende rapport til Miljøstyrelsen vedr. DANCEA-bevilling J.nr.M 123/000-0212
Ro-Poulsen, Helge, Albert, K. & N. Mikkelsen, T., 2004, 12 p.Research output: Book/Report › Report › Communication
- Published
Reduction of the Ambient UV-B Radiation in the High Arctic Increases Fv/Fm in Salix arctica and Vaccinium uliginosum and Reduces Stomatal Conductance and Internal CO2 Concentration in Salix arctica
Bredahl, L., Ro-Poulsen, Helge & Mikkelsen, T. N., 2004, In: Arctic, Antarctic, and Alpine Research. 36, p. 363-368Research output: Contribution to journal › Journal article › Research › peer-review
ID: 7631
Most downloads
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2119
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Solar Ultraviolet-B radiation at Zackenberg: The impact on higher plants and soil microbial communities: In: High-arctic ecosystem dynamics in a changing climate (eds H. Meltofte, T.R. Christensen, B. Elberling, M. Forchhammer, M. Rasch)
Research output: Book/Report › Anthology › Research › peer-review
Published -
1474
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Ambient UV-B radiation decreases photosynthesis in high arctic Vaccinium uliginosum.
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