Helge Ro-Poulsen
Emeritus
- Udgivet
Long term in situ measurements of gas exchange in a Norway spruce canopy at ambient and elevated ozone levels using a light weight chamber system - chamber design and preliminary results
Mikkelsen, T. N. & Ro-Poulsen, Helge, 1995, I: Water, Air and Soil Pollution. 85 (3), s. 1413-1418Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
- Udgivet
Carbon dioxide fluxes above a coniferous/hardwood stand in relation to climate - consecutive measurements from 17 months
Mikkelsen, T. N., Ro-Poulsen, Helge, Hummelshøj, P. & Jensen, N. O., 1997, Impacts of global change on tree physiology and forest ecosystems, Forestry Sciences, vol. 52. Dordrecht, Holland: Kluwer Academic Publishers, s. 331-336Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning
- Udgivet
Exposure of Norway spruce to ozone increases the sensitivity of current years needles to photoinhibition and desiccation
Mikkelsen, T. N. & Ro-Poulsen, Helge, 1994, I: New Phytologist. 128, s. 153-163Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
- Udgivet
Critical levels of ozone for wood production of European beech (Fagus Sylvatica L.)
Mortensen, L., Bastrup-Birk, A. & Ro-Poulsen, Helge, 1996, I: Water, Air and Soil Pollution. 85, s. 1349-1354Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning
- Udgivet
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 flere, , 2008.Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning
- Udgivet
CLIMAITE – a three factor climate change ecosystem manipulation experiment
N. Mikkelsen, T., Beier, C., Albert, K. & Ro-Poulsen, Helge, 2007, I: Geophysical Research Abstracts. 10Publikation: Bidrag til tidsskrift › Konferenceabstrakt i tidsskrift › Forskning
- Udgivet
Effects of UV-B radiation on vegetation in Zackenberg: In Rasch, M. and Caning, K. (eds.) Zackenberg Ecological Research Operations, 8th Annual Report, 2002. - Copenhagen, Danish Polar Center, Ministry of Science, Technology and Innovation, 2003.
N. Mikkelsen, T., Ro-Poulsen, Helge, Bredahl, L. & Albert, K., 2003Publikation: Bog/antologi/afhandling/rapport › Rapport › Formidling
- Udgivet
Field measurements of atmosphere-biosphere interactions in a Danish beech forest
Pilegaard, K., Mikkelsen, T., Beier, Claus, Jensen, N., Ambus, Per Lennart & Ro-Poulsen, Helge, 10 dec. 2003, I: Boreal Environment Research. 8, 4, s. 315-333 19 s.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
- Udgivet
Field measurements of atmosphere-surface interactions in a Danish beech forest
Pilegaard, K., Mikkelsen, T. N., Beier, C., Jensen, N. O., Ambus, Per Lennart & Ro-Poulsen, Helge, 2003, I: Boreal Environmental Research. 8, s. 315-333Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
- Udgivet
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, I: Global Change Biology. 11, 4, s. 564 - 574Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
ID: 7631
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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)
Publikation: Bog/antologi/afhandling/rapport › Antologi › Forskning › fagfællebedømt
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1474
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Ambient UV-B radiation decreases photosynthesis in high arctic Vaccinium uliginosum.
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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939
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The Biological Time Machine - Biological responses to multiple environmental and climatic changes: Environment and Stress, Ph.d. symposium at KVL October 2006
Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning
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