SEARCH

SEARCH BY CITATION

References

  • ACIA (2004) Impacts of a Warming Arctic: Arctic Climate Impact Assessment Overview Report. Cambridge University Press, Cambridge.
  • Aerts, R. (1997) Climate, leaf litter chemistry, and leaf litter decomposition in terrestrial ecosystems: a triangular relationship. Journal of Ecology, 80, 439449.
  • Ågren, G. & Bosatta, E. (1996) Theoretical Ecosystem Ecology: Understanding Element Cycles. Cambridge University Press, Cambridge.
  • Aspila, K.I., Agemian, H. & Chau, A.S.Y. (1976) A semi-automated method for the determination of inorganic, organic and total phosphate in sediments. Analyst, 101, 187197.
  • Berendse, F. (1994) Litter decomposability – a neglected component of plant fitness. Journal of Ecology, 82, 187190.
  • Berg, B. (2000) Litter decomposition and organic matter turnover in northern forest soils. Forest Ecology and Management, 133, 1322.
  • Boelman, N.T., Steiglitz, M., Rueth, H., Sommerkorn, M., Griffin, K.L., Shaver, G.R. et al. (2003) Establishing relationships between optical measurements and ecosystem level processes across long term warming and fertilization plots in wet sedge tundra. Oecologia, 135, 414421.
  • Callaghan, T.V., Björn, L.O., Chernov, Y., Chapin, T., Christensen, T.R., Huntley, B. et al. (2004a) Effects on the function of arctic ecosystems in the short- and long-term perspectives. Ambio, 33, 448458.
  • Callaghan, T.V., Björn, L.O., Chernov, Y., Chapin, F.S. III, Christensen, T.R., Huntley, B. et al. (2004b) Effects on landscape and regional processes and feedbacks to the climate system. Ambio, 33, 459468.
  • Chapin, F.S. III, VanCleve, K. & Chapin, M.C. (1979) Soil temperature and nutrient cycling in the tussock growth form of Eriophorum vaginatum. Journal of Ecology, 67, 169189.
  • Christensen, T.R., Ekberg, A., Ström, L., Mastepanov, M., Panikov, N., Öquist, M. et al. (2003) Factors controlling large scale variations in methane emissions from wetlands. Geophysical Research Letters, 30, 67.
  • Cornelisen, J.H.C. (1996) An experimental comparison of leaf decomposition rates in a wide range of temperate plant species and types. Journal of Ecology, 84, 573582.
  • Flanagan, P.W. & Veum, A.K. (1974) Relationships between respiration, weight loss, temperature, and moisture in organic residues on tundra. Soil Organisms and Decomposition in Tundra (eds A.J. Holding, O.W. Heal, S.F. MacLean, Jr & P.W. Flanagan), pp. 249277. Tundra Biome Steering Committee, Stockholm.
  • Fry, B., Brand, W., Mersch, F.J., Tholke, K. & Garritt, R. (1992) Automated analysis system for coupled 13C and 15N measurements. Analytical Chemistry, 64, 288291.
  • Giardina, C.P., Binkley, D., Ryan, M.G., Fownes, J.H. & Senock, R.H. (2004) Belowground carbon cycling in a humid tropical forest decreases with fertilization. Oecologia, 139, 545550.
  • Giblin, A.E., Nadelhoffer, K.J., Shaver, G.R., Laundre, J.A. & McKerrow, A.J. (1991) Biogeochemical diversity along a riverside toposequence in arctic Alaska. Ecological Monographs, 61, 415436.
  • Gough, L., Shaver, G.R., Carroll, J., Royer, D. & Laundre, J.A. (2000) Vascular plant species richness in Alaskan arctic tundra: the importance of soil pH. Journal of Ecology, 88, 5466.
  • Gough, L., Wookey, P.A. & Shaver, G.R. (2002) Dry heath arctic tundra responses to long-term nutrient and light manipulation. Arctic, Antarctic, and Alpine Research, 34, 211218.
  • Harmon, M.E. & Lajtha, K. (1999) Analysis of detritus and organic horizons for mineral and organic constituents. Standard Soil Methods for Long Term Ecological Research (eds G.P. Robertson, D.C. Coleman, C.S. Bledsoe & P. Sollins), pp. 143165. Oxford University Press, New York.
  • Heal, O.W., Flanagan, P.W., French, D.D. & MacLean, S.F. Jr (1981) Decomposition and accumulation of organic matter in tundra. Tundra Ecosystems: a Comparative Analysis (eds L.C. Bliss, O.W. Heal & J.J. Moore), pp. 587634. Cambridge University Press, Cambridge.
  • Hobbie, S.E. (1992) Effects of plant species on nutrient cycling. Trends in Ecology and Evolution, 7, 336339.
  • Hobbie, S.E. (1996) Temperature and plant species control over carbon and nitrogen cycling through litter and soil in Alaskan tundra. Ecological Monographs, 66, 503522.
  • Hobbie, S.E. & Gough, L. (2004) Litter decomposition in moist acidic and non-acidic tundra with different glacial histories. Oecologia, 140, 113124.
  • Hobbie, S.E., Gough, L. & Shaver, G.R. (2005) Species compositional differences on different-aged glacial landscapes drive contrasting responses of tundra to nutrient addition. Journal of Ecology, 93, 770782.
  • Hobbie, S.E., Schimel, J.P., Trumbore, S.E. & Randerson, J.R. (2000) A mechanistic understanding of carbon storage and turnover in high-latitude soils. Global Change Biology, 6, 196210.
  • Hobbie, J.E., Shaver, G., Laundre, J., Slavik, K., Deegan, L., O’Brien, J. et al. (2003) Climate forcing at the Arctic LTER site. Climate Variability and Ecosystem Response at Long-Term Ecological Research (LTER) Sites (eds D. Greenland, D. Goodin & R. Smith), pp. 7491. Oxford University Press, New York.
  • Johnson, L., Shaver, G.R., Cades, D., Rastetter, E., Nadelhoffer, K.J., Giblin A. et al. (2000) Carbon–nutrient interactions control CO2 exchange in Alaskan wet sedge ecosystems. Ecology, 81, 453469.
  • Johnson, L.C., Shaver, G.R., Giblin, A.E., Nadelhoffer, K.J., Rastetter, E.R., Laundre, J.A. et al. (1996) Effects of drainage and temperature on carbon balance of tussock tundra microcosms. Oecologia, 108, 737748.
  • Jonasson, S., Castro, J. & Michelsen, A. (2004) Litter, warming, and plants affect respiration and allocation of soil microbial and plant C, N, and P in arctic mesocosms. Soil Biology and Biochemistry, 36, 11291139.
  • Jonasson, S., Chapin, F.S. III & Shaver, G.R. (2001) Biogeochemistry in the arctic: patterns, processes, and controls. Global Biogeochemical Cycles in the Climate System (eds E.-D. Schulze, S.P. Harrison, M. Heimann, E.A. Holland, J.J. Lloyd, I.C. Prentice & D. Schimel), pp. 139150. Academic Press, New York.
  • Loya, W.M., Johnson, L.C. & Nadelhoffer, K.J. (2004) Seasonal dynamics of leaf- and root-derived C in arctic tundra mesocosms. Soil Biology and Biochemistry, 36, 655666.
  • Mack, M.C., Schuur, E.A.G., Bret-Harte, M.S., Shaver, G.R. & Chapin, F.S. III (2004) Ecosystem carbon storage in arctic tundra reduced by long-term nutrient fertilization. Nature, 431, 440443.
  • Mikan, C.J., Schimel, J.P. & Doyle, A.P. (2002) Temperature controls of microbial respiration in arctic tundra soils above and below freezing. Soil Biology and Biochemistry, 34, 17851795.
  • Nadelhoffer, K.J., Giblin, A.E., Shaver, G.R. & Laundre, J.A. (1991) Effects of temperature and organic matter quality on C, N, and P mineralization in soils from six arctic ecosystems. Ecology, 72, 242253.
  • Nadelhoffer, K.J., Johnson, L., Laundre, J., Giblin, A.E. & Shaver, G.R. (2002) Fine root production and nutrient use in wet and moist arctic tundras as influenced by chronic fertilization. Plant and Soil, 242, 107113.
  • Nadelhoffer, K.J., Linkins, A.E., Giblin, A.E. & Shaver, G.R. (1992) Microbial processes and plant nutrient availability in arctic soils. Arctic Ecosystems in a Changing Climate: an Ecophysiological Perspective (eds F.S. Chapin III, R. Jefferies, J. Reynolds, G. Shaver & J. Svoboda), pp. 281300. Academic Press, New York.
  • Neff, J., Townsend, A.R., Gleixner, G., Lehmans, S.J., Turnbull, J. & Bowman, W.D. (2002) Variable effects of nitrogen addition on the stability and turnover of soil carbon. Nature, 419, 915917.
  • Oechel, W.C. & Billings, W.D. (1992) Effects of global change on the carbon balance of arctic plants and ecosystems. Arctic Ecosystems in a Changing Climate: an Ecophysiological Perspective (eds F.S. Chapin III, R. Jefferies, J. Reynolds, G. Shaver & J. Svoboda), pp. 139168. Academic Press, New York.
  • Olsrud, M., Melillo, J.M., Christensen, T.R., Michelsen, A., Wallander, H. & Olsson, P.A. (2004) Response of ericoid mycorrhizal colonisation and functioning to global change factors. New Phytologist, 162, 459469.
  • Pendall, E., Bridgham, S., Hanson, P.J., Hungate, B., Kicklighter, D.W., Johnson, D.W. et al. (2004) Below-ground process responses to elevated CO2 and temperature: a discussion of observations, measurement methods, and models. New Phytologist, 162, 311322.
  • Pregitzer, K.S., Zak, D.R., Burton, A.J., Ashby, J.A. & Macdonald, N.W. (2004) Chronic nitrate additions dramatically increase the export of carbon and nitrogen from northern hardwood ecosystems. Biogeochemistry, 68, 179197.
  • Ruttenberg, K.C. (1992) Development of a sequential extraction method for different forms of phosphorus in marine sediments. Limnology and Oceanography, 37, 14601482.
  • Ryan, M.G., Melillo, J.M. & Ricca, A. (1990) A comparison of methods for determining proximate carbon faction of forest litter. Canadian Journal of Forestry Research, 20, 166171.
  • Schimel, J.P. & Bennet, J. (2004) Nitrogen mineralization: challenges of a changing paradigm. Ecology, 85, 591602.
  • Schimel, J.P. & Weintraub, M.N. (2003) The implications of exoenzyme activity on microbial carbon and nitrogen limitation in soil: a theoretical model. Soil Biology and Biochemistry, 35, 549563.
  • Schmidt, I.K., Jonasson, S., Shaver, G.R., Michelsen, A. & Nordin, A. (2002) Mineralization and allocation of nutrients by plants and microbes in four arctic ecosystems: responses to warming. Plant and Soil, 242, 93106.
  • Schmidt, I.K., Michelsen, A. & Jonasson, S. (1997) Effects of labile soil carbon on nutrient partitioning between an arctic graminoid and microbes. Oecologia, 112, 557565.
  • Shaver, G.R. (1996) Integrated ecosystem research in northern Alaska, 1947–1994. Landscape Function and Disturbance in Arctic Tundra (eds J. Reynolds & J. Tenhunen), pp. 1934. Springer-Verlag Ecological Studies Series, Volume 120. Springer-Verlag, Heidelberg.
  • Shaver, G.R., Bret-Harte, M.S., Jones, M.H., Johnstone, J., Gough, L., Laundre, J. et al. (2001) Species composition interacts with fertilizer to control long term change in tundra productivity. Ecology, 82, 31633181.
  • Shaver, G.R. & Chapin, F.S. III (1991) Production/biomass relationships and element cycling in contrasting arctic vegetation types. Ecological Monographs, 61, 131.
  • Shaver, G.R. & Chapin, F.S. III (1995) Long-term responses to factorial NPK fertilizer treatment by Alaskan wet and moist tundra sedge species. Ecography, 18, 259275.
  • Shaver, G.R., Johnson, L.C., Cades, D.H., Murray, G., Laundre, J.A., Rastetter, E.B. et al. (1998) Biomass accumulation and CO2 flux in three Alaskan wet sedge tundras: responses to nutrients, temperature, and light. Ecological Monographs, 68, 7599.
  • Shaver, G.R., Nadelhoffer, K.J. & Giblin, A.E. (1991) Biogeochemical diversity and element transport in a heterogeneous landscape, the North Slope of Alaska. Quantitative Methods in Landscape Ecology (eds M.G. Turner & R.H. Gardner), pp. 105126. Springer-Verlag, New York.
  • Sollins, P., Glassman, C., Paul, E.A., Swanston, C., Lajtha, K., Heil, J.W. et al. (1999) Soil carbon and nitrogen: pools and fractions. Standard Soil Methods for Long Term Ecological Research (eds G.P. Robertson, D.C. Coleman, C.S. Bledsoe & P. Sollins), pp. 89105. Oxford University Press, New York.
  • Walker, M.D., Walker, D.A. & Auerbach, N.A. (1994) Plant communities of a tussock tundra landscape in the Brooks Range Foothills, Alaska. Journal of Vegetation Science, 5, 843866.
  • Weintraub, M.N. & Schimel, J.P. (2003) Interactions between carbon and nitrogen mineralization and soil organic matter chemistry in arctic tundra soils. Ecosystems, 6, 129143.
  • Weintraub, M.N. & Schimel, J.P. (2005a) Seasonal dynamics of amino acids and other nutrients in Alaskan Arctic tundra soils. Biogeochemistry, 73, 359380.
  • Weintraub, M.N. & Schimel, J.P. (2005b) Seasonal protein dynamics in Alaskan arctic tundra soils. Soil Biology and Biochemistry, 37, 14691475.
  • Zimov, S.A., Davidov, S.P., Voropaev, Y.V., Prosiannikov, S.F., Semeletov, I.P., Chapin, M.C. et al. (1996) Siberian CO2 efflux in winter as a CO2 source and cause of seasonality in atmospheric CO2. Climatic Change, 33, 111120.