Helge Ro-Poulsen

2017

Warming, shading and a moth outbreak reduce tundra carbon sink strength dramatically by changing plant cover and soil microbial activity

Dahl, M. B., Priemé, A., Brejnrod, A. D., Brusvang, P., Lund, M., Nymand, J., Kramshøj, M., Ro-Poulsen, H. & Haugwitz, M. S., 1 dec. 2017, I: Scientific Reports. 7, 13 s., 16035.

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15 Citationer (Scopus)

73 Downloads (Pure)

2016

Large increases in Arctic biogenic volatile emissions are a direct effect of warming

Kramshøj, M., Vedel-Petersen, I., Schollert, M., Rinnan, Å., Nymand, J., Ro-Poulsen, H. & Rinnan, R., 1 maj 2016, I: Nature Geoscience. 9, 5, s. 349-352 4 s.

Publikation: Bidrag til tidsskrift › Letter › peer review

38 Citationer (Scopus)

9 Downloads (Pure)

2013

Antagonism between elevated CO₂, nighttime warming, and summer drought reduces the robustness of PSII performance to freezing events

Albert, K. R., Boesgaard, K., Ro-Poulsen, H., Mikkelsen, T. N., Andersen, S. & Pilegaard, K., sep. 2013, I: Environmental and Experimental Botany. 93, s. 1-12 12 s.

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5 Citationer (Scopus)

Does warming affect growth rate and biomass production of shrubs in the High Arctic?

Campioli, M., Schmidt, N. M., Albert, K. R., Leblans, N., Ro-Poulsen, H. & Michelsen, A., aug. 2013, I: Plant Ecology. 214, 8, s. 1049-1058 10 s.

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27 Citationer (Scopus)

Reduction of molecular gas diffusion through gaskets in leaf gas exchange cuvettes by leaf-mediated pores

Boesgaard, K. S., Mikkelsen, T. N., Ro-Poulsen, H. & Ibrom, A., jul. 2013, I: Plant, Cell and Environment. 36, 7, s. 1352-1362 11 s.

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9 Citationer (Scopus)

56 Downloads (Pure)

2012

Long-term structural canopy changes sustain net photosynthesis per ground area in high arctic Vaccinium uliginosum exposed to changes in near-ambient UV-B levels

Boesgaard, K. S., Albert, K. R., Ro-Poulsen, H., Michelsen, A., Mikkelsen, T. N. & Schmidt, N. M., aug. 2012, I: Physiologia Plantarum. 145, 4, s. 540-550 11 s.

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7 Citationer (Scopus)

Solar UV-B effects on PSII performance in Betula nana are influenced by PAR level and reduced by EDU: results of a 3-year experiment in the High Arctic

Albert, K. R., Mikkelsen, T. N., Ro-Poulsen, H., Arndal, M. F., Boesgaard, K. S., Michelsen, A., Bruhn, D. & Schmidt, N. M., jul. 2012, I: Physiologia Plantarum. 145, 3, s. 485-500 16 s.

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4 Citationer (Scopus)

Temperate heath plant response to dry conditions depends on growth strategy and less on physiology

Albert, K. R., Nielsen, J. K., Schmidt, I. K., Ro-Poulsen, H., Mikkelsen, T. N., Michelsen, A., Linden, L. V. D. & Beier, C., 2012, I: Acta Oecologica. 45, s. 79-87 9 s.

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8 Citationer (Scopus)

The shift in plant species composition in a subarctic mountain birch forest floor due to climate change would modify the biogenic volatile organic compound mission profile

Faubert, P., Tiiva, P., Michelsen, A., Rinnan, Å., Ro-Poulsen, H. & Rinnan, R., mar. 2012, I: Plant and Soil. 352, 1-2, s. 199-215 17 s.

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39 Citationer (Scopus)

1 Downloads (Pure)

Up-scaling of water use efficiency from leaf to canopy as based on leaf gas exchange relationships and the modeled in-canopy light distribution

Linderson, M-L., Mikkelsen, T. N., Ibrom, A., Lindroth, A., Ro-Poulsen, H. & Pilegaard, K., 15 jan. 2012, I: Agricultural and Forest Meteorology. 152, s. 201-211 11 s.

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26 Citationer (Scopus)

2011

Ambient UV-Bradiation reduces PSII performance and net photosynthesis in high Arctic Salix arctica.

Albert, K. R., Mikkelsen, T. N., Ro-Poulsen, H., Arndal, M. F. & Michelsen, A., okt. 2011, I: Environmental and Experimental Botany. 72, 3, s. 439-447 9 s.

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33 Citationer (Scopus)

Biomonitoring of toxic compounds of airborne particulate matter in urban and industriel areas

Klumpp, A. & Ro-Poulsen, H., 2011, Urban airborne particulate matter: origin, chemistry, fate and health Impacts. Zereini, F. & Wiseman, C. L. S. (red.). Springer Science+Business Media, s. 467-481 15 s. (Environmental Science and Engineering).

Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › peer review

1 Citationer (Scopus)

Effects of elevated CO₂, warming and drought episodes on plant carbon uptake in a temperate heath ecosystem are controlled by soil water status.

Albert, K. R., Ro-Poulsen, H., Mikkelsen, T. N., Michelsen, A., van der Linden, L. & Beier, C., jul. 2011, I: Plant, Cell and Environment. 34, 7, s. 1207-1222 16 s.

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50 Citationer (Scopus)

Interactive effects of drought, elevated CO2 and warming on photosynthetic capacity and photosystem performance in temperate heath plants

Albert, K. R., Mikkelsen, T. N., Michelsen, A., Ro-Poulsen, H. & van der Linden, L., 1 sep. 2011, I: Journal of Plant Physiology. 168, 13, s. 1550-61 12 s.

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82 Citationer (Scopus)

Interactive effects of elevated CO₂, warming, and drought on photosynthesis of Deschampsia flexuosa in a temperate heath ecosystem.

Albert, K. R., Ro-Poulsen, H., Mikkelsen, T. N., Michelsen, A., Linden, L. V. D. & Beier, C., aug. 2011, I: Journal of Experimental Botany. 62, 12, s. 4253-4266 14 s.

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60 Citationer (Scopus)

605 Downloads (Pure)

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 flereSelsted, M. B. & Andersen, K. S., maj 2011, I: Global Change Biology. 17, 5, s. 1884-1899 16 s.

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163 Citationer (Scopus)

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 flereSelsted, M. B. & Andersen, K. S., 2011, Nitrogen & global change: key findings - future challenges. 2 s.

Publikation: Bidrag til bog/antologi/rapport › Konferenceabstrakt i proceedings › Forskning

163 Citationer (Scopus)

2010

Improved UV-B screening capacity does not prevent negative effects of ambient UV irradiance on PSII performance in High Arctic plants. Results from a six year UV exclusion study

Albert, K. R., Mikkelsen, T. N., Ro-Poulsen, H., Michelsen, A., Arndal, M. F., Bredahl, L., Håkansson, K. B., Boesgaard, K. & Schmidt, N. M., 15 dec. 2010, I: Journal of Plant Physiology. 167, 18, s. 1542-1549 8 s.

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16 Citationer (Scopus)

Volatile organic compound emissions in three high arctic heath types, and the influence of climate change.

Michelsen, A., Burchard, S., Faubert, P., Rinnan, R., Ro-Poulsen, H. & Schmidt, N. M., 2010, Zackenberg Ecological Research Operations, 15th Annual Report, 2009. . Jensen, L. M. & Rasch, M. (red.). National Environmental Research Institute, Aarhus University: Aarhus Universitetsforlag, s. 105-106

Publikation: Bidrag til bog/antologi/rapport › Bidrag til rapport › Formidling

2009

Airborne trace element pollution in 11 European cities assessed by exposure of standardised ryegrass cultures

Klumpp, A., Ansel, W., Klumpp, G., Breuer, J., Vergne, P., Sanz, M. J., Rasmussen, S., Ro-Poulsen, H., Artola, A. R., Penuelas, J., He, S., Garrec, J. P. & Calatayud, V., 2009, I: Atmospheric Environment. 43, 2, s. 329-339

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37 Citationer (Scopus)

Atmospheric composition change: ecosystems-atmosphere interactions

Fowler, D., Pilegaard, K., Sutton, M. A., Ambus, P. L., Raivonen, M., Duyzer, J., Simpson, D., Fagerli, H., Fuzzi, S., Schjørring, J. K., Granier, C., Neftel, A., Isaksen, I. S. A., Laj, P., Maione, M., Monks, P. S., Burkhardt, J., Daemmgen, U., Neirynck, J., Personne, E., & 37 flereWichink-Kruit, R., Butterbach-Bahl, K., Flechard, C., Tuovinen, J. P., Coyle, M., Gerosa, G., Loubet, B., Altimir, N., Gruenhage, L., Ammann, C., Cieslik, S., Paoletti, E., Mikkelsen, T. N., Ro-Poulsen, H., Cellier, P., Cape, J. N., Horvath, L., Loreto, F., Niinemets, Ü., Palmer, P. I., Rinne, J., Misztal, P., Nemitz, E., Nilsson, D., Pryor, S., Gallagher, M. W., Vesala, T., Skiba, U., Brüggemann, N., Zechmeister-Boltenstern, S., Williams, J., O'Dowd, C., Facchini, M. C., de Leeuw, G., Flossman, A., Chaumerliac, N. & Erisman, J. W., 2009, I: Atmospheric Environment. 43, 33, s. 5193-5267 75 s.

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421 Citationer (Scopus)

Ecosystem Recovery after Drought Events in Our Future Climate

Selsted, M. B., Albert, K., Ambus, P. L., Michelsen, A., Ro-Poulsen, H., Mikkelsen, T. N. & Ibrom, A., 2009, I: Institute of Physics Conference Series.

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655 Downloads (Pure)

Plant and soil responses in ecosystem manipulation experiments

Boesgaard, K., Mathiesen, K., Albert, K., Ro-Poulsen, H., Schmidt, N. M. & Michelsen, A., 2009, ZACKENBERG ECOLOGICAL RESEARCH OPERATIONS (ZERO): 14th Annual Report 2008. Jensen, L. M. & Rasch, M. (red.). Aarhus University: National Environmental Research Institute, s. 88-89

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Responses of carbon and water fluxes following drought events in combinations with warming and elevated CO2

Selsted, M. B., Albert, K., Ambus, P. L., Michelsen, A., Ro-Poulsen, H., Mikkelsen, T. N. & Ibrom, A., 2009, I: Metlan Tyoraportteja. s. 144

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404 Downloads (Pure)

Unpredictable responses to interactions between climatic drivers: Impact of warming, elevated CO2, drought and their combinations on photosynthesis and growth patterns of heath plants

Ro-Poulsen, H., Albert, K., Michelsen, A., Mikkelsen, T. N. & Beier, C., 2009, I: Metlan Tyoraportteja. s. 346

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445 Downloads (Pure)

2008

Ambient UV-B decreases PSII performance and net photosynthesis under natural irradiance of the high arctic dwarf shrub Salix arctica

Albert, K., Mikkelsen, T. N., Ro-Poulsen, H., Arndal, M. F. & Michelsen, A., 2008.

Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning

708 Downloads (Pure)

Ambient UV-B radiation decreases photosynthesis in high arctic Vaccinium uliginosum.

Albert, K., Ro-Poulsen, H. & N. Mikkelsen, T., 2008, I: Physiologia Plantarum : An International Journal for Plant Biology. 133, 2, s. 199-210 11 s.

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46 Citationer (Scopus)

1192 Downloads (Pure)

Biological responses to current fluxes of ultraviolet radiation in High Arctic

Albert, K., Rinnan, R., N. mikkelsen, T., Ro-Poulsen, H., Michelsen, A., Arndal, M. F. & M. Schmidt, N., 2008.

Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning

365 Downloads (Pure)

Biological responses to current UV-B radiation in Arctic regions: 5th SPPS 2008 PhD conference January 24-27 2008 in Haslev, Denmark

Albert, K., N. Mikkelsen, T. & Ro-Poulsen, H., 2008.

Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning

283 Downloads (Pure)

Biological responses to current UV-B radiation in Arctic regions

Albert, K. R., Mikkelsen, T. N. & Ro-Poulsen, H., 2008, I: Geophysical Research Abstracts. 10, EGU2008-A-11698

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Biological responses to current UV-B radiation in Arctic regions: Geophysical Research Abstracts, Vol. 10, EGU2008-A-11698, 2008. SRef-ID: 1607-7962/gra/EGU2008-A-11698. EGU General Assembly 13-18 2008 April Vienna, Switzerland

Albert, K., N. Mikkelsen, T. & Ro-Poulsen, H., 2008.

Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning

417 Downloads (Pure)

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 flereRiis-Nielsen, T., Ro-Poulsen, H., Andersen, K. S., Selsted, M., Sørensen, P., S. Larsen, K., S. Carter, M., Ibrom, A., Martinussen, T., Miglietta, F. & Sverdrup, H., 2008.

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Effects of manipulations of local climate on carbon dioxide exchange and plant performance in two high arctic heaths

Michelsen, A., Boesgaard, K., Arndal, M. F., Tamstorf, M., Schmidt, N. M., Albert, K. & Ro-Poulsen, H., 2008, Zackenberg Ecological Research Operations, 13th Annual Report, 2007.: Danish Polar Center, Danish Agency for Science, Technology and innovation, Ministry of Science, Technology and Innovation.. Klitgaard, A. B. & Rasch, M. (red.). Copenhagen: Danish Polar Center, s. 70-71

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Experimental design of multifactor climate change experiments with elevated CO₂, warming and drought: the CLIMAITE project

Mikkelsen, T. N., 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., Linden, L., Nielsen, J. K., Maraldo, K., Priemé, A., & 11 flereRiis-Nielsen, T., Ro-Poulsen, H., Andersen, K. S., Selsted, M. B., Sørensen, P., Larsen, K. S., Carter, M. S., Ibrom, A., Martinussen, T., Miglietta, F. & Sverdrup, H., 2008, I: Functional Ecology. 22, 1, s. 185-195 11 s.

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117 Citationer (Scopus)

171 Downloads (Pure)

Future photosynthetic performance of heath plants – results from the multi-factorial ecosystem experiment, CLIMAITE: 5th SPPS 2008 PhD conference January 24-27 2008 in Haslev, Denmark

Albert, K., N. Mikkelsen, T. & Ro-Poulsen, H., 2008.

Publikation: Konferencebidrag › Konferenceabstrakt til konference › Forskning

Plant eco-physiological response patterns to summer drought, elevated CO2, and warming in a semi-natural temperate heath ecosystem

Ro-Poulsen, H., Albert, K., Mikkelsen, T. N. & Michelsen, A., 2008.

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355 Downloads (Pure)

Plant eco-physiological response patterns to summer drought, elevated CO2 and warming in a natural temperate heath ecosystem: Ecological Society of America, 93^rd ESA annual meeting August 3-8, Milwaukee, Wisconsin

Albert, K., N. Mikkelsen, T., Ro-Poulsen, H. & Michelsen, A., 2008, 93rd ESA Annual Meeting Sunday, August 3 -Friday, August 8, 2008. The Midwest Airlines Center - Milwauke, Wisconsin.

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754 Downloads (Pure)

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)

Albert, K., Rinnan, R., Ro-Poulsen, H., Mikkelsen, T., Håkansson, K., F. Arndal, M. & Michelsen, A., 2008, New York: Elsevier. 421 s. (Advances in Ecological Research, Bind 40).

Publikation: Bog/antologi/afhandling/rapport › Antologi › Forskning › peer review

13 Citationer (Scopus)

1859 Downloads (Pure)

Studies of Plant Responses to UV-B radiation 2007

Albert, K., Boesgaard, K., Ro-Poulsen, H., N. Mikkelsen, T., Michelsen, A. & M. Schmidt, N., 2008, Zackenberg Ecological Research Operations, 13th Annual Report, 2007. Copenhagen) , ^{Danish Polar Center, Danish Agency for Science, Technology and Innovation, Ministry of Science, Technology and Innovation}. klitgaard, A. B. & Rasch, M. (red.). Danish Polar Center, Danish Agency for Science, Technology and Innovation, Ministry of Science, Technology and Innovation, Copenhagen: Danish Polar Center, s. 80-81

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2007

CLIMAITE – a three factor climate change ecosystem manipulation experiment

N. Mikkelsen, T., Beier, C., Albert, K. & Ro-Poulsen, H., 2007, I: Geophysical Research Abstracts. 10

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323 Downloads (Pure)

Effects of manipulations of local climate on processes and organisms in high arctic terrestrial ecosystems

Michelsen, A., Ellebjerg, S., Tamstorf, M., Schmidt, N. M., Illeris, L., Albert, K. & Ro-Poulsen, H., 2007, Zackenberg Ecological Research Operations. 12th Annual Report 2006. Klitgaard, A. B., Rasch, M. & Canning, K. (red.). Copenhagen, DK: Nyt Nordisk Forlag Arnold Busck, s. 80-81 2 s.

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844 Downloads (Pure)

Klimaændringer og processer og funktion i terrestiske økosystemer

Schmidt, I. K., Beier, C., Pedersen, J. K., Andresen, L., Michelsen, A., Albert, K., Ambus, P. L., Selsted, M., Maraldo, K., Holmstrup, M., Arndal, M. F., Mikkelsen, T. N., Ro-Poulsen, H., Jonassen, S. & Karsten, R. J., 2007, I: Flora og Fauna. 113, 4, s. 117-128 12 s.

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2006

Effects of climate manipulations on processes and organisms in high arctic terrestrial ecosystems

Michelsen, A., Kønig, S. M., Illeris, L., Arndal, M., Albert, K., Tamstorf, M. P. & Ro-Poulsen, H., 2006, Zackenberg Ecological Research Operations11th Annual Report, 2005: Copenhagen, Danish Polar Center, Ministry of Science, Technology andInnovation, 2006.. Klitgaard, A. B., Rasch, M. & Caning, K. (red.). Copenhagen: Danish Polar Center, s. 89-90

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486 Downloads (Pure)

How does prolonged drought affect plant physiological processes? - Focus on the interactions with increased temperature and elevated [CO2] within the CLIMAITE project?

Albert, K., Ro-Poulsen, H. & N. Mikkelsen, T., 2006.

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284 Downloads (Pure)

Ozone pollution and ozone biomonitoring in European cities. Part I: Ozone concentrations and cumulative exposure indices at urban and suburban sites

Klumpp, A., Ansel, W., Klumpp, G., Calatayud, V., Garrec, J. P., He, S., Penuelas, J., Ribas, A., Ro-Poulsen, H., Rasmussen, S., Sanz, M. J. & Vergne, P., 2006, I: Atmospheric Environment. 40, 40, s. 7963-7974

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45 Citationer (Scopus)

Ozone pollution and ozone biomonitoring in European cities Part II. Ozone-induced plant injury and its relationship with descriptors of ozone pollution

Klumpp, A., Ansel, W., Klumpp, G., Vergne, P., Sifakis, N., Sanz, M. J., Rasmussen, S., Ro-Poulsen, H., Ribas, A., Penuelas, J., Kambezidis, H., He, S., Garrec, J. P. & Calatayud, V., 2006, I: Atmospheric Environment. 40, 38, s. 7437-7448

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43 Citationer (Scopus)

Studying effects of current UV-fluxes on high arctic vegetation (UV-B exclusion experiments)

Albert, K., Arndal, M. F., Michelsen, A., Tamstorf, M., Ro-Poulsen, H. & N. Mikkelsen, T., 2006, Zackenberg Ecological Research Operations 11th Annual Report, 2005: Copenhagen, Danish Polar Center, Ministry of Science, Technology andInnovation, 2006. Klitgaard, A. B., Rasch, M. & Caning, K. (red.). Danish Polar Center, s. 90-91

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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

Albert, K., Ro-Poulsen, H., N. Mikkelsen, T., Michelsen, A., Beier, C., Jonasson, S. E., Ambus, P. L., Schmidt, I. K., Holmstrup, M., Priemé, A. & Christensen, S., 2006.

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907 Downloads (Pure)

Tradescantia micronucleus test indicates genotoxic potential of traffic emissions in European cities.

Klumpp, A., Ansel, W., Klumpp, G., Calatayud, V., Garrec, J. P., He, S., Penuelas, J., Ribas, A., Ro-Poulsen, H., Rasmussen, S., Sanz, M. J. & Vergne, P., 2006, I: Environmental Pollution. 139, 3, s. 515-522

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37 Citationer (Scopus)

2005

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, H., Mikkelsen, T. N. & Michelsen, A., 2005, I: Global Change Biology. 11, 4, s. 564 - 574

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45 Citationer (Scopus)

Helge Ro-Poulsen

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