Temperature sensitivity and enzymatic mechanisms of soil organic matter decomposition along an altitudinal gradient on Mount Kilimanjaro
Bond-Lamberty, B. & Thomson, A. Temperature-associated increases in the global record of soil respiration. Nature 464, 579–582 (2010).
Smith, P. & Fang, C. Cycle C: A Warm Soil Response. Nature 464, 499-500 (2010).
Kirschbaum, MUF The temperature dependence of soil organic matter decomposition and the effect of global warming on soil organic carbon storage. Soil Biology and Biochemistry 27, 753–760 (1995).
Allison, SD, Wallenstein, MD & Bradford, MA Soil-carbon response to warming dependent on microbial physiology. Nature Geosci 3, 336–340 (2010).
Craine, J., Fierer, N., McLauchlan, K. & Elmore, A. Reduced temperature sensitivity of soil organic matter decomposition with sustained temperature increase. Biogeochemistry 113, 359–368 (2013).
Bradford, MA et al. Thermal adaptation of soil microbial respiration to elevated temperature. School. Lett. 11, 1316-1327 (2008).
Agren, GI & Wetterstedt, JAM What determines the temperature response of soil organic matter decomposition? Soil Biology and Biochemistry 39, 1794–1798 (2007).
Todd-Brown, K., Hopkins, FM, Kivlin, SN, Talbot, JM & Allison, SD A framework for representing microbial decomposition in coupled climate models. Biogeochemistry 109, 19–33 (2012).
Bosatta, E. & Agren, GI Soil organic matter quality interpreted thermodynamically. Organic soil. Biochemistry. 31, 1889–1891 (1999).
Davidson, EA & Janssens, IA Temperature sensitivity of soil carbon decomposition and feedbacks to climate change. Nature 440, 154-164 (2006).
Li, J., Ziegler, S., Lane, CS & Billings, SA Preferential microbial mineralization enhanced by warming of humified soil organic matter in the boreal forest: interpretation of soil profiles along a climatic transect at the using laboratory incubations. J.Geophys.Res. 117, G02008 (2012).
Bradford, MA Thermal adaptation of decomposer communities in soil warming. Frontiers in Microbiology 4, 333-Article number: 333 (2013).
Wieder, WR, Bonan, GB & Allison, SD Global soil carbon projections are improved by modeling microbial processes. Nature Clim.Change 3, 909–912 (2013).
Pierre, MM et al. Temperature sensitivity of soil enzymatic kinetics under nitrogen fertilization in two temperate forests. Global Biol Change. 18, 1173-1184 (2012).
Steinweg, JM, Plante, AF, Conant, RT, Paul, EA, and Tanaka, DL Models of substrate utilization during long-term incubations at different temperatures. Organic soil. Biochemistry. 40, 2722-2728 (2008).
Kirschbaum, MU Soil respiration under prolonged soil warming: are rate reductions caused by acclimation or loss of substrate? Global Biol Change. 10, 1870–1877 (2004).
Hartley, IP, Heinemeyer, A. & Ineson, P. Effects of three years of soil warming and shading on soil respiration rate: Substrate availability, not thermal acclimation, mediates the observed response. Global Biol Change. 13, 1761-1770 (2007).
Ziegler, SE, Billings, SA, Lane, CS, Li, J. & Fogel, ML Warming alters the routing of labile and slower-turning carbon through distinct microbial groups in boreal forest organic soils. Organic soil. Biochemistry. 60, 23–32 (2013).
German, DP, Marcelo, KRB, Stone, MM & Allison, SD The Michaelis-Menten kinetics of extracellular soil enzymes in response to temperature: a cross-latitudinal study. Global Biol Change. 18, 1468-1469 (2012).
Tucker, CL, Bell, J., Pendall, E. & Ogle, K. Does declining carbon use efficiency explain thermal acclimation of soil respiration with warming? Global Biol Change. 19, 252–263 (2013).
Wang, G et al. Microbial dormancy enhances ecosystem model development and experimental validation. ISME J 9, 226–237 (2015).
Frey, SD, Lee, J., Melillo, JM & Six, J. The temperature response of soil microbial efficiency and its feedback to climate. Nature Climate Change 3, 395–398 (2013).
Dijkstra, P. et al. Effect of temperature on metabolic activity of intact microbial communities: evidence for altered metabolic pathway activity, but not for increased maintenance respiration and reduced carbon utilization efficiency. Organic soil. Biochemistry. 43, 2023-2031 (2011).
Hagerty, SB et al. Accelerated microbial renewal but constant growth efficiency with soil warming. Nature Clim.Change 4, 903–906 (2014).
Li, J., Ziegler, SE, Lane, CS & Billings, SA Legacies of the native climate regime govern the responses of boreal soil microbes to litter stoichiometry and temperature. Organic soil. Biochemistry. 66, 204-213 (2013).
Li, J., Wang, G., Allison, SD, Mayes, MA & Luo, Y. Soil carbon sensitivity to temperature and carbon use efficiency compared to microbial ecosystem models from variable complexity. Biogeochemistry 119, 67–84 (2014).
Treseder, KK et al. Integrating microbial ecology into ecosystem models: challenges and priorities. Biogeochemistry 109, 7–18 (2011).
Erhagen, B., Ilstedt, U. & Nilsson, MB The temperature sensitivity of heterotrophic soil CO2 production increases with increasing carbon substrate uptake rate. Organic soil. Biochemistry. 80, 45-52 (2015).
Michaelis, L., Menten, ML Die Kinetik der Invertinwirkung. Biochemistry. Z.49, 333–369 (1913).
Davidson, EA, Janssens, IA & Luo, Y. On Respiration Variability in Terrestrial Ecosystems: Going Beyond Qten . Global Biol Change. 12, 154–164 (2006).
Hartley, IP, Hopkins, DW, Garnett, MH, Sommerkorn, M. & Wookey, PA Soil microbial respiration in arctic soil does not acclimatize to temperature. School. Lett. 11, 1092-1100 (2008).
Duane, WJ, Pepin, NC, Losleben, ML & Hardy, DR General characteristics of temperature and humidity variability in Kilimanjaro, Tanzania. arct. Antarctic. Alp. Res. 40, 323–334 (2008).
Pabst, H., Kuehnel, A. & Kuzyakov, Y. Effect of land use and elevation on microbial biomass and water-extractable carbon in soils of Mount Kilimanjaro ecosystems. Applied Soil Ecology 67, 10–19 (2013).
Molloy, LF & Speir, TW Soil climosequence studies in hummock grassland. 12. Constituents of the light fractions of the soil. New Zealand J. of Soil Science 20, 167–177 (1977).
Amelung, W., Zech, W. & Flach, KW Climatic effects on soil organic matter composition in the Great Plains. Ground Sci. Soc. A m. J. 115–123 (1997).
Einstein, A. Über die von molekularkinetischen Theorie der Wärme geforederte Bewegung von in ruhenden Flüssigkeiten suspendierten Teilchen. Anna. Phys. 17, 549–560 (1905).
Shuai, L. & Pan, X. Hydrolysis of cellulose by a cellulase-mimetic solid catalyst. Energy and Environmental Sciences 5, 6889–6894 (2012).
Van, L. Thermal Degradation, Concise Encyclopedia of Wood and Wood-Based Materials (ed. Schniewind, AP) 271–273 (Pergamon Press, Elmsford, NY, 1989).
Gershenson, A., Bader, NE & Cheng, W. Effects of substrate availability on the temperature sensitivity of soil organic matter decomposition. Global Biol Change. 15, 176–183 (2009).
Dungait, JAJ, Hopkins, DW, Gregory, AS & Whitmore, AP Soil organic matter turnover is governed by accessibility, not recalcitrance. Global Biol Change. 18 (2012).
Panikov, NS in (eds Flickinger, MS & Drew, SW) 1513–1543 (John Wiley & Sons, New York, 1999).
Khalili, B., Nourbakhsh, F., Nili, N., Khademi, H. & Sharifnabi, B. Soil cellulase isoenzyme diversity is associated with kinetic and thermodynamic parameters of soil cellulase. Organic soil. Biochemistry. 43, 1639-1648 (2011).
Masciandaro, G. et al. Comparison of extraction methods for the recovery of extracellular Î2-glucosidase in two different forest soils. Organic soil. Biochemistry. 40, 2156-2161 (2008).
Rousk, J. & Jones, DL Loss of dissolved organic carbon (DOC) and low molecular weight nitrogen (DON) in H2O and 0.5 M K2SO4 soil extracts. Organic soil. Biochemistry. 42, 2331-2335 (2010).
Kirschbaum, MU Seasonal variations in labile substrate availability confound the temperature dependence of organic matter decomposition. Organic soil. Biochemistry. 57, 568–576 (2013).
Hemp, A. Continuum or zoning? Altitudinal gradients in the forest vegetation of Mount Kilimanjaro. School. 184, 27-42 (2006).
Sowerby, A. et al. Microbial community changes in heathland soil communities along a geographic gradient: interaction with climate change manipulations. Organic soil. Biochemistry. 37, 1805–1813 (2005).
Sanaullah, M., Blagodatskaya, E., Chabbi, A., Rumpel, C., and Kuzyakov, Y. The effects of drought on microbial biomass and enzymatic activities in the rhizosphere of grasses depend on the composition of the plant community . Appl. School. 48, 38-44 (2011).
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