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Two Decades of Experimental Manipulations of Heaths and Forest Understory in the Subarctic

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Abstract

Current atmospheric warming due to increase of greenhouse gases will have severe consequences for the structure and functioning of arctic ecosystems with changes that, in turn, may feed back on the global-scale composition of the atmosphere. During more than two decades, environmental controls on biological and biogeochemical processes and possible atmospheric feedbacks have been intensely investigated at Abisko, Sweden, by long-term ecosystem manipulations. The research has addressed questions like environmental regulation of plant and microbial community structure and biomass, carbon and nutrient pools and element cycling, including exchange of greenhouse gases and volatile organic compounds, with focus on fundamental processes in the interface between plants, soil and root-associated and free-living soil microorganisms. The ultimate goal has been to infer from these multi-decadal experiments how subarctic and arctic ecosystems will respond to likely environmental changes in the future. Here we give an overview of some of the experiments and main results.

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References

  • Aerts, R. 2006. The freezer defrosting: Global warming and litter decomposition rates in cold biomes. Journal of Ecology 94: 713–724.

    Article  Google Scholar 

  • Aerts, R., J.H.C. Cornelissen, and E. Dorrepaal. 2006. Plant performance in a warmer world: General responses of plants from cold, northern biomes and the importance of winter and spring events. Plant Ecology 182: 65–77.

    Google Scholar 

  • Andresen, L.C., A. Michelsen, L. Ström, and S. Jonasson. 2008. Uptake of pulse injected nitrogen by soil microbes and mycorrhizal and non-mycorrhizal plants in a species-diverse subarctic heath ecosystem. Plant and Soil 313: 283–295. doi:10.1007/s11104-008-9700-7.

    Article  CAS  Google Scholar 

  • Arroniz-Crespo, M., M.D. Gwynn-Jones, T.V. Callaghan, E. Nunez-Olivera, J. Martınez-Abaigar, P. Horton, and G.K. Phoenix. 2011. Impacts of long-term enhanced UV-B radiation on bryophytes in two sub-Arctic heathland sites of contrasting water availability. Annals of Botany 108: 557–565.

    Article  CAS  Google Scholar 

  • Bjerke, J.W., S. Bokhorst, M. Zielke, T.V. Callaghan, F.C. Bowles, and G.K. Phoenix. 2011. Contrasting sensitivity to extreme winter warming events of dominant sub-Arctic heathland bryophyte and lichen species. Journal of Ecology 99: 1481–1488.

    Article  Google Scholar 

  • Björk, R.G., H. Majdi, L. Klemedtsson, L. Lewis-Jonsson, and U. Molau. 2007. Long-term warming effects on root morphology, root mass distribution, and microbial activity in two dry tundra plant communities in northern Sweden. New Phytologist 176: 862–873.

    Article  Google Scholar 

  • Bokhorst, S., J.W. Bjerke, L.E. Street, T.V. Callaghan, and G.K. Phoenix. 2011. Impacts of multiple extreme winter warming events on sub-Arctic heathland: Phenology, reproduction, growth, and CO2 flux responses. Global Change Biology 17: 2817–2830.

    Article  Google Scholar 

  • Callaghan, T.V., L.O. Björn, Y. Chernov, T. Chapin, T.R. Christensen, B. Huntley, R.A. Ims, M. Johansson, et al. 2004. Effects on the function of Arctic ecosystems in the short- and long-term perspectives. AMBIO 33: 448–458.

    Google Scholar 

  • Christensen, T.R., T. Johansson, M. Olsrud, L. Ström, A. Lindroth, M. Mastepanov, N. Malmer, T. Friborg, et al. 2007. A catchment-scale carbon and greenhouse gas budget of a subarctic landscape. Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences 365: 1643–1656.

    Article  CAS  Google Scholar 

  • Christensen, T.R., A. Michelsen, and S. Jonasson. 1999. Exchange of CH4 and N2O in a subarctic heath soil: Effects of inorganic N and P and amino acid addition. Soil Biology & Biochemistry 31: 637–641.

    Article  CAS  Google Scholar 

  • Christensen, T.R., A. Michelsen, S. Jonasson, and I.K. Schmidt. 1997. Carbon dioxide and methane exchange of a subarctic heath in response to climate change related environmental manipulations. Oikos 79: 34–44.

    Article  CAS  Google Scholar 

  • Clemmensen, K.E., and A. Michelsen. 2006. Integrated long-term responses of an arctic-alpine willow and associated ectomycorrhizal fungi to an altered environment. Canadian Journal of Botany 84: 831–843.

    Article  Google Scholar 

  • Clemmensen, K.E., A. Michelsen, S. Jonasson, and G.R. Shaver. 2006. Increased ectomycorrhizal fungal abundance after long-term fertilization and warming of two arctic tundra ecosystems. New Phytologist 171: 391–404.

    Article  Google Scholar 

  • Clemmensen, K.E., P.L. Sørensen, A. Michelsen, S. Jonasson, and L. Ström. 2008. Site-dependent N uptake from N-form mixtures by arctic plants, soil microbes and ectomycorrhizal fungi. Oecologia 155: 771–783. doi:10.1007/s00442-008-0962-9.

    Article  Google Scholar 

  • Craine, J.M., A.J. Elmore, M.P.M. Aidar, M. Bustamante, T.E. Dawson, E.A. Hobbie, A. Kahmen, M.C. Mack, et al. 2009. Global patterns of foliar nitrogen isotopes and their relationships with climate, mycorrhizal fungi, foliar nutrient concentrations, and nitrogen availability. New Phytologist 183: 980–992. doi:10.1111/j.1469-8137.2009.02917.x.

    Article  CAS  Google Scholar 

  • Dorrepaal, E., S. Toet, R.S.P. van Logtestijn, E. Swart, M.J. van de Weg, T.V. Callaghan, and R. Aerts. 2009. Carbon respiration from subsurface peat accelerated by climate warming in the subarctic. Nature 460: 616–619.

    Article  CAS  Google Scholar 

  • Ekberg, A., A. Arneth, H. Hakola, S. Hayward, and T. Holst. 2009. Isoprene emission from wetland sedges. Biogeosciences 6: 601–613.

    Article  CAS  Google Scholar 

  • Ekberg, A., A. Arneth, and T. Holst. 2011. Isoprene emission from Sphagnum species occupying different growth positions above the water table. Boreal Environment Research 16: 47–59.

    CAS  Google Scholar 

  • Elmendorf, S., G. Henry, R. Hollister, R. Björk, A. Bjorkman, T.V. Callaghan, L. Collier, E. Cooper, et al. 2012. Global assessment of experimental climate warming on tundra vegetation: Heterogeneity over space and time. Ecology Letters 15: 164–175.

    Article  Google Scholar 

  • Fahnestock, J.T., M.H. Jones, and J.M. Welker. 1999. Wintertime CO2 efflux from Arctic soils: Implications for annual carbon budgets. Global Biogeochemical Cycles 13: 775–779.

    Article  CAS  Google Scholar 

  • Faubert, P., P. Tiiva., A. Michelsen, Å. Rinnan, H. Ro-Poulsen, and R. Rinnan. 2012. The shift in plant species composition in a subarctic mountain birch forest floor due to climate change would modify the biogenic volatile organic compound emission profile. Plant and Soil 352: 199–215. doi:10.1007/s11104-011-0989-2.

  • Faubert, P., P. Tiiva, Å. Rinnan, A. Michelsen, J.K. Holopainen, and R. Rinnan. 2010. Doubled volatile organic compound emissions from subarctic tundra under simulated climate warming. New Phytologist 187: 199–208. doi:10.1111/j.1469-8137.2010.03270.x.

    Article  CAS  Google Scholar 

  • Fox, A.M., B. Huntley, C.R. Lloyd, M. Williams, and R. Baxter. 2008. Net ecosystem exchange over heterogeneous Arctic tundra: Scaling between chamber and eddy covariance measurements. Global Biogeochemical Cycles 22: GB2027.

    Article  Google Scholar 

  • Graglia, E., S. Jonasson, A. Michelsen, I.K. Schmidt, M. Havström, and L. Gustavsson. 2001. Effects of environmental perturbations on abundance of subarctic plants after three, seven and ten years of treatments. Ecography 24: 5–12.

    Article  Google Scholar 

  • Grogan, P., L. Illeris, A. Michelsen, and S. Jonasson. 2001. Respiration of recently-fixed plant carbon dominates mid-winter ecosystem CO2 production in sub-arctic heath tundra. Climatic Change 50: 129–142.

    Article  CAS  Google Scholar 

  • Grogan, P., and S. Jonasson. 2003. Controls on annual nitrogen cycling in the understory of a subarctic birch forest. Ecology 84: 202–218.

    Article  Google Scholar 

  • Haapanala, S., A. Ekberg, H. Hakola, V. Tarvainen, J. Rinne, H. Hellen, and A. Arneth. 2009. Mountain birch—potentially large source of sesquiterpenes into high latitude atmosphere. Biogeosciences 6: 2709–2718.

    Article  CAS  Google Scholar 

  • Hansen, A.H., S. Jonasson, A. Michelsen, and R. Julkunen-Tiitto. 2006. Long-term experimental warming, shading and nutrient addition affect the concentration of phenolic compounds in subarctic deciduous and evergreen dwarf shrubs. Oecologia 147: 1–11.

    Article  Google Scholar 

  • Hartley, A.E., C. Neill, J.M. Melillo, R. Crabtree, and F.P. Bowles. 1999. Plant performance and soil nitrogen mineralization in response to simulated climate change in subarctic dwarf shrub heath. Oikos 86: 331–343.

    Article  Google Scholar 

  • Haugwitz, M.S., and A. Michelsen. 2011. Long-term addition of fertilizer, labile carbon and fungicide alters the biomass of plant functional groups in a subarctic-alpine community. Plant Ecology 212: 715–726. doi:10.1007/s11258-010-9857-z.

    Article  Google Scholar 

  • Haugwitz, M.S., I.K. Schmidt, and A. Michelsen. 2011. Long-term microbial control of nutrient availability and plant biomass in a subarctic-alpine heath after addition of carbon, fertilizer and fungicide. Soil Biology & Biochemistry 43: 179–187. doi:10.1016/j.soilbio.2010.09.032.

    Article  CAS  Google Scholar 

  • Holst, T., A. Arneth, S. Hayward, A. Ekberg, M. Mastepanov, M. Jackowicz-Korczynski, T. Friborg, P.M. Crill, and K. Bäckstrand. 2010. BVOC ecosystem flux measurements at a high latitude wetland site. Atmospheric Chemistry and Physics 10: 1617–1634.

    Article  CAS  Google Scholar 

  • Illeris, L., S.M. König, P. Grogan, S. Jonasson, A. Michelsen, and H. Ro-Poulsen. 2004. Growing season carbon dioxide flux in a dry subarctic heath: Responses to long-term manipulations. Arctic, Antarctic, and Alpine Research 36: 456–463.

    Article  Google Scholar 

  • Jonasson, S., J. Castro, and A. Michelsen. 2006. Interactions between plants, litter and microbes in cycling of nitrogen and phosphorus in the arctic. Soil Biology & Biochemistry 38: 526–532.

    Article  CAS  Google Scholar 

  • Jonasson, S., and A. Michelsen. 1996. Plant nutrition and nutrient cycling in the Subarctic, with special reference to the Abisko and Torneträsk area. Ecological Bulletins 45: 45–52.

    CAS  Google Scholar 

  • Jonasson, S., A. Michelsen, I.K. Schmidt, and E.V. Nielsen. 1999. Responses in microbes and plants to changed temperature, nutrient, and light regimes in the Arctic. Ecology 80: 1828–1843.

    Article  Google Scholar 

  • Karlsson G.P., C. Akselsson, S. Hellsten, P.E. Karlsson, and G. Malm. 2009. Övervakning av luftföroreningar norra Sverige – mätningar och moddellering. Svenska Miljöinstitut IVL rapport B1851. Lund Universitet (in Swedish).

  • Kjøller, R., M. Olsrud, and A. Michelsen. 2010. Co-existing ericaceous plant species in a subarctic heath community share fungal root endophytes. Fungal Ecology 3: 205–214.

    Article  Google Scholar 

  • Konestabo, S.H., A. Michelsen, and M. Holmstrup. 2007. Responses of springtail and mite populations to prolonged periods of soil freeze–thaw cycles in a sub-arctic ecosystem. Applied Soil Ecology 36: 136–146. doi:10.1016/j.apsoil.2007.01.003.

    Article  Google Scholar 

  • Krab, E.J., J.H.C. Cornelissen, S.I. Lang, and R.S.P. van Logtestijn. 2008. Amino acid uptake among wide-ranging moss species may contribute to their strong position in higher-latitude ecosystems. Plant and Soil 304: 199–208.

    Article  CAS  Google Scholar 

  • Kullman, L., and L. Öberg. 2009. Post-Little Ice Age tree line rise and climate warming in the Swedish Scandes: A landscape ecological perspective. Journal of Ecology 97: 415–429.

    Article  Google Scholar 

  • Larsen, K.S., P. Grogan, S. Jonasson, and A. Michelsen. 2007a. Respiration and microbial dynamics in two sub-arctic ecosystems during winter and spring thaw: Effects of increased snow depth. Arctic, Antarctic, and Alpine Research 39: 268–276.

    Article  Google Scholar 

  • Larsen, K.S., A. Ibrom, S. Jonasson, A. Michelsen, and C. Beier. 2007b. Significance of cold-season respiration and photosynthesis in a subarctic heath ecosystem in Northern Sweden. Global Change Biology 13: 1498–1508. doi:10.1111/j.1365-2486.2007.01370.x.

    Article  Google Scholar 

  • Mack, M.C., E.A.G. Schuur, M.S. Bret-Harte, G.R. Shaver, and F.S. Chapin III. 2004. Ecosystem carbon storage in arctic tundra reduced by long-term nutrient fertilization. Nature 431: 440–443.

    Article  CAS  Google Scholar 

  • McKane, R.B., L.C. Johnson., G.R. Shaver, K.J. Nadelhoffer, E.B. Rastetter, B. Fry, A.E. Giblin, K. Kielland, et al. 2002. Resource-based niches provide a basis for plant species diversity and dominance in arctic tundra. Nature 415: 68–71.

    Article  CAS  Google Scholar 

  • Michelsen, A., E. Graglia, I.K. Schmidt, S. Jonasson, C. Quarmby, and D. Sleep. 1999. Differential responses of grass and a dwarf shrub to long-term changes in soil microbial biomass C, N and P by factorial NPK fertilizer, fungicide and labile carbon addition to a heath. New Phytologist 143: 523–538.

    Article  Google Scholar 

  • Michelsen, A., S. Jonasson, D. Sleep, M. Havström, and T.V. Callaghan. 1996. Shoot biomass, δ13C, nitrogen and chlorophyll responses of two arctic dwarf-shrubs to in situ shading, nutrient application and warming simulating climatic change. Oecologia 105: 1–12.

    Article  Google Scholar 

  • Michelsen, A., C. Quarmby, D. Sleep, and S. Jonasson. 1998. Vascular plant 15N natural abundance in heath and forest tundra ecosystems is closely correlated with presence and type of mycorrhizal fungi in roots. Oecologia 115: 406–418.

    Article  Google Scholar 

  • Molau, U. 2010. Long-term impacts of observed and induced climate change on tussock tundra near its southern limit in northern Sweden. Plant Ecology and Diversity 3: 29–34.

    Article  Google Scholar 

  • Olsrud, M., B.Å. Carlsson, B.M. Svensson, A. Michelsen, and J.M. Melillo. 2010. Responses of fungal root colonization, plant cover and leaf nutrients to long-term exposure to elevated atmospheric CO2 and warming in a subarctic birch forest understory. Global Change Biology 16: 1820–1829. doi:10.1111/j.1365-2486.2009.02079.x.

    Article  Google Scholar 

  • Olsrud, M., and A. Michelsen. 2009. Effects of shading on photosynthesis, plant organic nitrogen uptake and root fungal colonization in a subarctic mire ecosystem. Botany 87: 463–474. doi:10.1139/B09-021.

    Article  CAS  Google Scholar 

  • Olsrud, M., A. Michelsen, and H. Wallander. 2007. Ergosterol content in ericaceous hair roots correlates with dark septate endophytes but not with ericoid mycorrhizal colonization. Soil Biology & Biochemistry 39: 1218–1221. doi:10.1016/j.soilbio.2006.11.018.

    Article  CAS  Google Scholar 

  • Peñuelas, K., and M. Staudt. 2010. BVOCs and global change. Trends in Plant Science 15: 133–144.

    Article  Google Scholar 

  • Press, M.C., J.A. Potter, M.J.W. Burke, T.V. Callaghan, and J.A. Lee. 1998. Responses of a subarctic dwarf shrub heath community to simulated environmental change. Journal of Ecology 86: 315–327.

    Article  Google Scholar 

  • Rinnan, R., A. Michelsen, and E. Bååth. 2011a. Long-term warming of a subarctic heath decreases soil bacterial community growth but has no effects on its temperature adaptation. Applied Soil Ecology 47: 217–220. doi:10.1016/j.apsoil.2010.12.011.

    Article  Google Scholar 

  • Rinnan, R., A. Michelsen, E. Bååth, and S. Jonasson. 2007a. Fifteen years of climate change manipulations alter soil microbial communities in a subarctic heath ecosystem. Global Change Biology 13: 28–39. doi:10.1111/j.1365-2486.2006.01263.x.

    Article  Google Scholar 

  • Rinnan, R., A. Michelsen, E. Bååth, and S. Jonasson. 2007b. Mineralization and carbon turnover in subarctic heath soil as affected by warming and additional litter. Soil Biology & Biochemistry 39: 3014–3023.

    Article  CAS  Google Scholar 

  • Rinnan, R., A. Michelsen, and S. Jonasson. 2008. Effects of litter addition and warming on soil carbon, nutrient pools and microbial communities in a subarctic heath ecosystem. Applied Soil Ecology 39: 271–281. doi:10.1016/j.apsoil.2007.12.014.

    Article  Google Scholar 

  • Rinnan, R., Å. Rinnan, P. Faubert, P. Tiiva, J.K. Holopainen, and A. Michelsen. 2011b. Few long-term effects of simulated climate change on volatile organic compound emissions and leaf chemistry of three subarctic dwarf shrubs. Environmental and Experimental Botany 72: 377–386.

    Article  CAS  Google Scholar 

  • Robinson, C.H., P.A. Wookey, A.N. Parsons, J.A. Potter, T.V. Callaghan, J.A. Lee, M.C. Press, and J.M. Welker. 1995. Responses of plant litter decomposition and nitrogen mineralisation to simulated environmental change in a high arctic polar semi-desert and a subarctic dwarf shrub heath. Oikos 74: 503–512.

    Article  Google Scholar 

  • Ruess, L., A. Michelsen, I.K. Schmidt, and S. Jonasson. 1999. Simulated climate change affecting microorganisms, nematode density and biodiversity in subarctic soils. Plant and Soil 212: 63–73.

    Article  CAS  Google Scholar 

  • Rundqvist, S., H. Hedenås, A. Sandström, U. Emanuelsson, H. Eriksson, C. Jonasson, and T.V. Callaghan. 2011. Tree and shrub expansion over the past 34 years at the tree-line near Abisko, Sweden. AMBIO 40: 683–692.

    Article  Google Scholar 

  • Schmidt, I.K., S. Jonasson, G.R. Shaver, A. Michelsen, and A. Nordin. 2002. Mineralization and distribution of nutrients in plants and microbes in four arctic ecosystems: Responses to warming. Plant and Soil 242: 93–106.

    Article  CAS  Google Scholar 

  • Sjögersten, S., and P.A. Wookey. 2009. The impact of climate change on ecosystem carbon dynamics at the Scandinavian mountain birch forest–tundra heath ecotone. AMBIO 38: 2–10.

    Article  Google Scholar 

  • Sjursen, H., A. Michelsen, and S. Jonasson. 2005. Effects of long-term soil warming and fertilisation on microarthropod abundances in three sub-arctic ecosystems. Applied Soil Ecology 30: 148–161.

    Article  Google Scholar 

  • Solheim, B., U. Johanson, T.V. Callaghan, J.A. Lee, D. Gwynn-Jones, and L.O. Björn. 2002. The nitrogen fixation potential of arctic cryptogram species is influenced by enhanced UV-B radiation. Oecologia 133: 90–93.

    Article  Google Scholar 

  • Sorensen, P.L., S. Lett, and A. Michelsen. 2012. Moss specific changes in nitrogen fixation following two decades of warming, shading and fertilizer addition. Plant Ecology 213: 695–706. doi:10.1007/s11258-012-0034-4.

    Article  Google Scholar 

  • Sorensen, P.L., and A. Michelsen. 2011. Long-term warming and litter addition affects nitrogen fixation in subarctic heath. Global Change Biology 17: 528–537. doi:10.1111/j.1365-2486.2010.02234.x/pdf.

    Article  Google Scholar 

  • Sorensen, P.L., A. Michelsen, and S. Jonasson. 2006. Nitrogen fixation, denitrification and ecosystem nitrogen pools in relation to vegetation development in the Subarctic. Arctic, Antarctic, and Alpine Research 38: 263–272.

    Article  Google Scholar 

  • Sorensen, P.L., A. Michelsen, and S. Jonasson. 2008a. Ecosystem partitioning of 15N-glycine after long-term climate manipulations, plant clipping and addition of labile carbon in a subarctic heath tundra. Soil Biology & Biochemistry 40: 2344–2350. doi:10.1016/j.soilbio.2008.05.013.

    Article  CAS  Google Scholar 

  • Sorensen, P.L., A. Michelsen, and S. Jonasson. 2008b. Nitrogen uptake during one year in subarctic plant functional groups and in microbes after long-term warming and fertilization. Ecosystems 11: 223–233. doi:10.1007/s10021-008-9204-6.

    Article  Google Scholar 

  • Tiiva, P., P. Faubert, A. Michelsen, T. Holopainen, J.K. Holopainen, and R. Rinnan. 2008. Climatic warming increases isoprene emission from a subarctic heath. New Phytologist 180: 853–863. doi:10.1111/j.1469-8137.2008.02587.x.

    Article  CAS  Google Scholar 

  • Urcelay, C., M.S. Bret-Harte, S. Diaz, and F.S. Chapin III. 2003. Mycorrhizal colonization mediated by species interactions in arctic tundra. Oecologia 137: 399–404.

    Article  Google Scholar 

  • van Wijk, M.T., K.E. Clemmensen, G.R. Shaver, M. Williams, T.V. Callaghan, F.S. Chapin III, J.H.C. Cornelissen, L. Gough, et al. 2004. Long-term ecosystem level experiments at Toolik Lake, Alaska, and at Abisko, Northern Sweden: Generalisations and differences in ecosystem and plant type responses to global change. Global Change Biology 10: 105–123.

    Article  Google Scholar 

  • Welker, J.M., J.T. Fahnestock, G.H.R. Henry, K.W. O’Dea, and R.A. Chimner. 2004. CO2 exchange in three Canadian High Arctic ecosystems: Response to long-term experimental warming. Global Change Biology 10: 1981–1995.

    Article  Google Scholar 

  • Welker, J.M., J.T. Fahnestock, and M.H. Jones. 2000. Annual CO2 flux in dry and moist arctic tundra: Field responses to increases in summer temperatures and winter snow depth. Climatic Change 44: 139–150.

    Article  CAS  Google Scholar 

  • Yano, Y., G.R. Shaver, A.E. Giblin, and E.B. Rastetter. 2010. Depleted 15N in hydrolysable-N of arctic soils and its implication for mycorrhizal fungi–plant interaction. Biogeochemistry 97: 183–194.

    Article  CAS  Google Scholar 

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Acknowledgments

We are grateful to the staff at the Abisko Scientific Research Station for excellent facilities and support, and to the Director through many years, Prof. Terry V. Callaghan, for his encouragement and enthusiastic work in arctic ecological research. The studies have been supported by multiple grants from The Danish Council for Independent Research. We also wish to thank The Danish National Research Foundation for funding the activities within the Center for Permafrost (CENPERM). Numerous colleagues, students and field assistants are thanked for enthusiastic collaboration during the field and analytical work.

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  1. Terrestrial Ecology Section, Department of Biology, University of Copenhagen, Universitetsparken 15, 2100, Copenhagen Ø, Denmark

    Anders Michelsen, Riikka Rinnan & Sven Jonasson

  2. Center for Permafrost (CENPERM), University of Copenhagen, Øster Voldgade 10, 1350, Copenhagen K, Denmark

    Anders Michelsen & Riikka Rinnan

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  1. Anders Michelsen
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Correspondence to Anders Michelsen.

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Michelsen, A., Rinnan, R. & Jonasson, S. Two Decades of Experimental Manipulations of Heaths and Forest Understory in the Subarctic. AMBIO 41 (Suppl 3), 218–230 (2012). https://doi.org/10.1007/s13280-012-0303-4

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