References
- Aalto, J., P. C. Le Roux, and M. Luoto. 2013. Vegetation mediates soil temperature and moisture in Arctic-Alpine environments. Arctic, Antarctic, and Alpine Research 45:1–17. doi:https://doi.org/10.1657/1938-4246-45.4.429.
- Anderson, N. J., W. D’andrea, and S. C. Fritz. 2009. Holocene carbon burial by lakes in SW Greenland. Global Change Biologic 15:2590–98. doi:https://doi.org/10.1111/j.1365-2486.2009.01942.x.
- Borcard, D., F. Gillet, and P. Legendre. 2011. Numerical ecology with R, 292. New York: Springer.
- Bosatta, E., and G. Ågren. 1999. Soil organic matter quality interpreted thermodynamically. Soil Biology & Biochemistry 31:1889–91.
- Bradley-Cook, J. I., C. L. Petrenko, A. J. Friedland, and R. A. Virginia. 2016. Temperature sensitivity of mineral soil carbon decomposition in shrub and graminoid tundra, west Greenland. Climate Change Responses 1–15. doi:https://doi.org/10.1186/s40665-016-0016-1.
- Bradley-Cook, J. I., and R. A. Virginia. 2016. Soil carbon storage, respiration potential, and organic matter quality across an age and climate gradient in southwestern Greenland. Polar Biology 39:1283–95. doi:https://doi.org/10.1007/s00300-015-1853-2.
- Cahoon, S. M. P., P. F. Sullivan, E. Post, and J. M. Welker. 2011. Large herbivores limit CO2 uptake and suppress carbon cycle responses to warming in West Greenland. Global Change Biologic 18:469–79. doi:https://doi.org/10.1111/j.1365-2486.2011.02528.x.
- Callaghan, T. V., L. Bjorn, F. S. Chapin, Y. Chernov, T. Christensen, B. Huntley, R. Ims, M. Johansson, D. Jolly, S. Jonasson, N. Matveyeva, W. Oechel, N. Panikov, and G. Shaver. 2005. Arctic tundra and polar desert ecosystems. In Arctic climate impact assessment, eds. C. Symon, L. Arris, and B. Heal, 244–352. New York: Cambridge University Press.
- Chapin, F., M. Bret-Harte, S. Hobbie, and H. Zhong. 1996. Plant functional types as predictors of transient responses of arctic vegetation to global change. Journal of Vegetation Science 7:347–58.
- Chapin, F., J. McFarland, A. D. McGuire, E. S. Euskirchen, R. W. Ruess, and K. Kielland. 2009. The changing global carbon cycle: Linking plant-soil carbon dynamics to global consequences. Journal of Ecology 97:840–50. doi:https://doi.org/10.1111/j.1365-2745.2009.01529.x.
- Craine, J., R. Spurr, K. Mclauchlan, and N. Fierer. 2009. Landscape-level variation in temperature sensitivity of soil organic carbon decomposition. Soil Biology & Biochemistry 42:373–75. doi:https://doi.org/10.1016/j.soilbio.2009.10.024.
- Creamer, C. A., T. R. Filley, T. W. Boutton, S. Oleynik, and I. B. Kantola. 2011. Controls on soil carbon accumulation during woody plant encroachment: Evidence from physical fractionation, soil respiration, and 13-C of respired CO2. Soil Biology and Biochemistry 43:1678–87. doi:https://doi.org/10.1016/j.soilbio.2011.04.013.
- Davidson, E. A., and I. A. Janssens. 2006. Temperature sensitivity of soil carbon decomposition and feedbacks to climate change. Nature 440:165–73. doi:https://doi.org/10.1038/nature04514.
- Dijkmans, J., and T. Törnqvist. 1991. Modern periglacial eolian deposits and landforms in the Søndre Strømfjord area, West Greenland and their palaeoenvironmental implications. Meddelelser Om Grønland. Geoscience 25:3–39.
- DMI (Danish Meterological Institute). 2017. Klimanormaler for Grønland, Copenhagen, Denmark. Accessed June 4, 2017. http://www.dmi.dk/groenland/arkiver/klimanormaler/.
- Fierer, N., B. Colman, and J. Schimel. 2006. Predicting the temperature dependence of microbial respiration in soil: A continental-scale analysis. Global Biogeochemical Cycles 20:GB3026. doi:https://doi.org/10.1029/2005GB002644.
- Frost, G. V., and H. E. Epstein. 2014. Tall shrub and tree expansion in Siberian tundra ecotones since the 1960s. Global Change Biology 20:1264–77. doi:https://doi.org/10.1111/gcb.12406.
- Haddix, M. L., A. F. Plante, R. T. Conant, J. Six, J. M. Steinweg, K. Magrini-Bair, R. A. Drijber, S. J. Morris, and E. A. Paul. 2011. The role of soil characteristics on temperature sensitivity of soil organic matter. Soil Science Society Of America Journal 75:56–68. doi:https://doi.org/10.2136/sssaj2010.0118.
- Hanlon, B., and B. Larget. 2011. Assumptions and transformations. Madison, Wisconsin: Department of Statistics. Accessed May 20, 2017. http://www.stat.wisc.edu/~st571-1/11-assumptions-2.pdf.
- Heindel, R. C., J. W. Chipman, and R. A. Virginia. 2015. The spatial distribution and ecological impacts of Aeolian soil erosion in Kangerlussuaq, West Greenland. Annals of the Association of American Geographers 105:875–90. doi:https://doi.org/10.1080/00045608.2015.1059176.
- Hinzman, L. D., C. J. Deal, A. D. McGuire, S. H. Mernild, I. V. Polyakov, and J. E. Walsh. 2013. Trajectory of the Arctic as an integrated system. Ecological Applications 23:1837–68.
- Hobbie, S. 1996. Temperature and plant species control over litter decomposition in Alaskan tundra. Ecological Monographs 66:503–22.
- Hollingsworth, T. N., E. A. G. Schuur, F. S. Chapin III, and M. D. Walker. 2008. Plant community composition as a predictor of regional soil carbon storage in Alaskan Boreal Black Spruce Ecosystems. Ecosystems 11:629–42. doi:https://doi.org/10.1007/s10021-008-9147-y.
- Hollister, R. D., P. J. Webber, F. E. Nelson, and C. E. Tweedie. 2006. Soil thaw and temperature response to air warming varies by plant community: Results from an open-top chamber experiment in northern Alaska. Arctic, Antarctic, and Alpine Research 38:206–15.
- Hooper, D., and P. Vitousek. 1998. Effects of plant composition and diversity on nutrient cycling. Ecological Monographs 68:121–49.
- Horwath Burnham, J., and R. Sletten. 2010. Spatial distribution of soil organic carbon in northwest Greenland and underestimates of high Arctic carbon stores. Global Biogeochemical Cycles 24:GB3012. doi:https://doi.org/10.1029/2009GB003660.
- Horwath, J. L., R. S. Sletten, B. Hagedorn, and B. Hallet. 2008. Spatial and temporal distribution of soil organic carbon in nonsorted striped patterned ground of the High Arctic. Journal Of Geophysical Research-Biogeosciences 113:G03S07. doi:https://doi.org/10.1029/2007JG000511.
- Hudson, J. M. G., G. H. R. Henry, and W. K. Cornwell. 2011. Taller and larger: Shifts in Arctic tundra leaf traits after 16 years of experimental warming. Global Change Biology 17:1013–21. doi:https://doi.org/10.1111/j.1365-2486.2010.02294.x.
- Hugelius, G., and P. Kuhry. 2009. Landscape partitioning and environmental gradient analyses of soil organic carbon in a permafrost environment. Global Biogeochemical Cycles 23:GB3006. doi:https://doi.org/10.1029/2008GB003419.
- Hugelius, G., J. Strauss, S. Zubrzycki, J. W. Harden, E. A. G. Schuur, C.-L. Ping, L. Schirrmeister, G. Grosse, G. J. Michaelson, C. D. Koven, J. A. O’Donnell, B. Elberling, U. Mishra, P. Camill, Z. Yu, J. Palmtag, and P. Kuhry. 2014. Estimated stocks of circumpolar permafrost carbon with quantified uncertainty ranges and identified data gaps. Biogeosciences 11:6573–93. doi:https://doi.org/10.5194/bg-11-6573-2014-supplement.
- Hugelius, G., C. Tarnocai, G. Broll, J. G. Canadell, P. Kuhry, and D. K. Swanson. 2013. The Northern circumpolar soil carbon database: Spatially distributed datasets of soil coverage and soil carbon storage in the northern permafrost regions. Earth Systems Sciences Data 5:3–13. doi:https://doi.org/10.5194/essd-5-3-2013.
- Jean, M., and S. Payette. 2014. Effect of vegetation cover on the ground thermal regime of wooded and non-wooded palsas. Permafrost and Periglacial Processes 25:281–94. doi:https://doi.org/10.1002/ppp.1817.
- Jenny, H. 1941. Factors of soil formation. New York: Dover Publications.
- Jones, A., V. Stolbovoy, C. Tarnocai, G. Broll, O. Spaargaren, and L. Montarella. 2009. Soil Atlas of the Northern Circumpolar Region, 1. Luxembourg: European Commission, Office for Official Publications of the European Communities.
- Jørgensen, R. H., H. Meilby, and J. Kollmann. 2013. Shrub expansion in SW Greenland under modest regional warming: Disentangling effects of human disturbance and grazing. Arctic, Antarctic, and Alpine Research 45:515–25. doi:https://doi.org/10.1657/1938-4246-45.4.515.
- Levy, L. B., M. A. Kelly, J. A. Howley, and R. A. Virginia. 2012. Age of the Ørkendalen moraines, Kangerlussuaq, Greenland: Constraints on the extent of the southwestern margin of the Greenland Ice Sheet during the Holocene. Quaternary Science Reviews 52:1–5. doi:https://doi.org/10.1016/j.quascirev.2012.07.021.
- McGuire, D. A., L. G. Anderson, T. R. Christensen, S. Dallimore, L. Guo, D. J. Hayes, M. Heimann, T. D. Lorenson, R. D. Macdonald, and N. Roulet. 2009. Sensitivity of the carbon cycle in the Arctic to climate change. Ecological Monographs 79:523–55.
- Mernild, S. H., E. Hanna, J. R. McConnell, M. Sigl, A. P. Beckerman, J. C. Yde, J. Cappelen, J. K. Malmros, and K. Steffen. 2015. Greenland precipitation trends in a long-term instrumental climate context (1890–2012): Evaluation of coastal and ice core records. International Journal Climatology 35:303–20. doi:https://doi.org/10.1002/joc.3986.
- Migala, K., B. Wojtun, W. Szymanski, and P. Muskala. 2014. Soil moisture and temperature variation under different types of tundra vegetation during the growing season: A case study from the Fuglebekken catchment, SW Spitsbergen. Catena 116:10–18. doi:https://doi.org/10.1016/j.catena2013.12.007.
- Min, K., C. A. Lehmeier, F. Ballantyne, A. Tatarko, and S. A. Billings. 2014. Differential effects of pH on temperature sensitivity of organic carbon and nitrogen decay. Soil Biology & Biochemistry 76:193–200. doi:https://doi.org/10.1016/j.soilbio.2014.05.021.
- Myers-Smith, I. H., S. C. Elmendorf, P. S. A. Beck, M. Wilmking, M. Hallinger, D. Blok, K. D. Tape, S. A. Rayback, M. Macias-Fauria, B. C. Forbes, J. D. M. Speed, N. Boulanger-Lapointe, C. Rixen, E. Levesque, N. M. Schmidt, C. Baittinger, A. J. Trant, L. Hermanutz, L. S. Collier, M. A. Dawes, T. C. Lantz, S. Weijers, R. H. Jørgensen, A. Buchwal, A. Buras, A. T. Naito, V. Ravolainen, G. Schaepman-Strub, J. A. Wheeler, S. Wipf, K. C. Guay, D. S. Hik, and M. Vellend. 2015. Climate sensitivity of shrub growth across the tundra biome. Nature Climate Change. doi:https://doi.org/10.1038/nclimate2697.
- Myers-Smith, I. H., B. C. Forbes, M. Wilmking, M. Hallinger, T. Lantz, D. Blok, K. D. Tape, M. Macias-Fauria, U. Sass-Klaassen, E. Levesque, S. Boudreau, P. Ropars, L. Hermanutz, A. Trant, L. S. Collier, S. Weijers, J. Rozema, S. A. Rayback, N. M. Schmidt, G. Schaepman-Strub, S. Wipf, C. Rixen, C. B. Menard, S. Venn, S. Goetz, L. Andreu-Hayles, S. Elmendorf, V. Ravolainen, J. Welker, P. Grogan, H. E. Epstein, and D. S. Hik. 2011. Shrub expansion in tundra ecosystems: Dynamics, impacts and research priorities. Environmental Research Letters 6:045509. doi:https://doi.org/10.1088/1748-9326/6/4/045509.
- Myers-Smith, I. H., and D. S. Hik. 2013. Shrub canopies influence soil temperatures but not nutrient dynamics: An experimental test of tundra snow-shrub interactions. Ecology and Evolution 3:3683–700. doi:https://doi.org/10.1002/ece3.710.
- Oksanen, J., F. G. Blanchet, R. Kindt, P. Legendre, P. R. Minchin, R. B. O’Hara, G. L. Simpson, P. Solymos, M. H. H. Stevens, and H. Wagner 2015. vegan: Community ecology package. http://CRAN.R-project.org/package=vegan.
- Ostle, N. J., P. Smith, R. Fisher, F. L. Woodward, J. B. Fisher, J. U. Smith, D. Galbraith, P. Levy, P. Meir, N. P. McNamara, and R. D. Bardgett. 2009. Integrating plant-soil interactions into global carbon cycle models. Journal of Ecology 97:851–63. doi:https://doi.org/10.1111/j.1365-2745.2009.01547.x.
- Petrenko, C. L., J. I. Bradley-Cook, E. M. Lacroix, A. J. Friedland, and R. A. Virginia. 2016. Comparison of carbon and nitrogen storage in mineral soils of graminoid and shrub tundra sites, western Greenland. Arctic Science 2:165–82. doi:https://doi.org/10.1139/as-2015-0023.
- Post, E., and M. C. Forchhammer. 2008. Climate change reduces reproductive success of an Arctic herbivore through trophic mismatch. Philosophical Transactions of the Royal Society B 363:2367–73. doi:https://doi.org/10.1098/rstb.2007.2207.
- Post, E., and C. Pedersen. 2008. Opposing plant community responses to warming with and without herbivores. Proceedings of the National Academy of Sciences 105:12353–58. doi:https://doi.org/10.1073/pnas.0802421105.
- Schmidt, M., M. Torn, S. Abiven, and T. Dittmar. 2011. Persistence of soil organic matter as an ecosystem property. Nature 478:49–56. doi:https://doi.org/10.1038/nature10386.
- Sierra, C. A., S. E. Trumbore, E. A. Davidson, S. Vicca, and I. Janssens. 2015. Sensitivity of decomposition rates of soil organic matter with respect to simultaneous changes in temperature and moisture. Journal Advancement Model Earth Systems 7:335–56. doi:https://doi.org/10.1002/2014MS000358.
- Sollins, P., C. Glassman, E. A. Paul, C. Swanston, K. Lajtha, and J. W. Heil. 1999. C and N Dry Combustion. In Standard Soil Methods for Long-Term Ecological Research, eds. G. P. Robertson, D. C. Coleman, C. Bledsoe, and P. Sollins, 92–95. Oxford: Oxford University Press.
- Stendel, M., J. H. Christensen, G. Aoalgeirsdottir, N. Kliem, and M. Drews. 2007. Regional climate change for Greenland and surrounding seas. Danish Climate Centre Report 07-02, Danish Meteorological Institute, Copenhagen, Denmark, 26. Accessed March 15, 2015. http://978-87-7478-547-7.
- Sturm, M., J. Holmgren, and J. McFadden. 2001. Snow-shrub interactions in Arctic tundra: A hypothesis with climatic implications. Journal of Climate 14:336–44.
- Sturm, M., J. Schimel, G. Michaelson, and J. Welker. 2005. Winter biological processes could help convert arctic tundra to shrubland. BioScience 55:17–26.
- Sullivan, P. F., S. J. T. Arens, R. A. Chimner, and J. M. Welker. 2008. Temperature and microtopography interact to control carbon cycling in a high arctic fen. Ecosystems 11:61–76. doi:https://doi.org/10.1007/s10021-007-9107-y.
- Tamstorf, M. P., P. J. Aastrup, and L. C. Cuyler. 2005. Modelling critical caribou summer ranges in West Greenland. Polar Biology 28:714–24. doi:https://doi.org/10.1007/s00300-005-0731-8.
- Thomsen, I. K., B. M. Petersen, S. Bruun, L. S. Jensen, and B. T. Christensen. 2008. Estimating soil C loss potentials from the C to N ratio. Soil Biology and Biochemistry 40:849–52. doi:https://doi.org/10.1016/j.soilbio.2007.10.002.
- Urban, M., M. Forkel, J. Eberle, C. Huettich, C. Schmullius, and M. Herold. 2014. Pan-Arctic climate and land cover trends derived from multi-variate and multi-scale analyses (1981–2012). Remote Sensing 6:2296–316. doi:https://doi.org/10.3390/rs6032296.
- Weatherspark. 2015. Average Weather For Kangerlussuaq (Søndre Strømfjord), Greenland. Accessed August 6, 2015. https://weatherspark.com/averages/27554/Kangerlussuaq-S-ndre-Str-mfjord-Kitaa-Greenland.
- Xiong, X., S. Grunwald, D. B. Myers, J. Kim, W. G. Harris, and N. Bliznyuk. 2015. Assessing uncertainty in soil organic carbon modeling across a highly heterogeneous landscape. Geoderma 251–252:105–16. doi:https://doi.org/10.1016/j.geoderma.2015.03.028.