Abstract
Understanding energy and material fluxes through ecosystems is central to many questions in global change biology and ecology1,2,3,4,5,6,7,8,9,10,11. Ecosystem respiration is a critical component of the carbon cycle1,5,6,7 and might be important in regulating biosphere response to global climate change1,2,3. Here we derive a general model of ecosystem respiration based on the kinetics of metabolic reactions11,12,13 and the scaling of resource use by individual organisms14,15. The model predicts that fluxes of CO2 and energy are invariant of ecosystem biomass, but are strongly influenced by temperature, variation in cellular metabolism and rates of supply of limiting resources (water and/or nutrients). Variation in ecosystem respiration within sites, as calculated from a network of CO2 flux towers5,7, provides robust support for the model's predictions. However, data indicate that variation in annual flux between sites is not strongly dependent on average site temperature or latitude. This presents an interesting paradox with regard to the expected temperature dependence. Nevertheless, our model provides a basis for quantitatively understanding energy and material flux between the atmosphere and biosphere.
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References
Valentini, R. et al. Respiration as the main determinant of carbon balance in European forests. Nature 404, 861–865 (2000)
Giardina, C. P. & Ryan, M. G. Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature. Nature 404, 858–861 (2000)
Huxman, T. E. et al. Temperature as a control over ecosystem CO2 fluxes in a high elevation subalpine forest. Oecologia 134, 537–546 (2003)
Rosenzweig, M. L. Species Diversity in Space and Time (Cambridge Univ. Press, 1995)
Baldocchi, D. et al. FLUXNET: A new tool to study the temporal and spatial variability of ecosystem-scale carbon dioxide, water vapor, and energy flux densities. Bull. Am. Meteorol. Soc. 82, 2415–2434 (2001)
Law, B. E. Environmental controls over carbon dioxide and water vapor exchange of terrestrial vegetation. Agric. Forest Meteorol. 113, 97–120 (2002)
Running, S. W. et al. A global terrestrial monitoring network, scaling tower fluxes with ecosystem modeling and EOS satellite data. Remote Sens. Environ. 70, 108–127 (1999)
Schulze, E. D., Kelliher, F. M., Korner, C., Lloyd, J. & Leuning, R. Relationships among maximal stomatal conductance, carbon assimilation rate, and plant nitrogen nutrition: A global ecology scaling exercise. Annu. Rev. Ecol. Syst. 25, 629–660 (1994)
Luo, Y., Wan, S., Hui, W. & Wallace, L. L. Acclimatization of soil respiration to warming in a tall grass prairie. Nature 413, 622–625 (2001)
Enquist, B. J. & Niklas, K. J. Invariant scaling relations across tree-dominated communities. Nature 410, 655–660 (2001)
West, G. B., Brown, J. H. & Enquist, B. J. A general model for the origin of allometric scaling laws in biology. Science 276, 122–126 (1997)
Gillooly, J. F., Brown, J. H., West, G. B., Savage, V. M. & Charnov, E. L. Effects of size and temperature on metabolic rate. Science 293, 2248–2251 (2001)
Gillooly, J. F. et al. Effects of size and temperature on developmental time. Nature 417, 70–73 (2002)
Niklas, K. J. & Enquist, B. J. Invariant scaling relationships for interspecific plant biomass production rates and body size. Proc. Natl Acad. Sci. USA 98, 2922–2927 (2001)
Hemmingsen, A. M. Energy metabolism as related to body size and respiratory surfaces, and its evolution. Rep. Steno Mem. Hosp. Nord. Insulin Lab. 9, 7–95 (1960)
West, G. B., Woodruff, W. H. & Brown, J. H. Allometric scaling of metabolic rate from molecules and mitochondria to cells and mammals. Proc. Natl Acad. Sci. USA 99 (suppl. 1), 2473–2478 (2002)
Damuth, J. Population density and body size in mammals. Nature 290, 699–700 (1981)
Enquist, B. J. in Macroecology: Concepts and Consequences (eds Blackburn, T. & Gaston, K.) (Oxford Univ. Press, in the press)
Raison, J. K. & Chapman, E. A. Membrane phase changes in chilling-sensitivity Vigna radiata and their significance to growth. Aust. J. Plant Physiol. 3, 291–299 (1976)
Pearcy, R. W. Acclimation of photosynthetic and respiratory carbon dioxide exchange to growth temperature and Atriplex lentiformis (Torr.) Wats. Plant Physiol. 59, 795–799 (1977)
Conover, D. O. & Schultz, E. T. Phenotypic similarity and the evolutionary significance of countergradient selection. Trends Ecol. Evol. 10, 248–252 (1995)
Mooney, H. A. & Billings, W. D. Comparative physiological ecology of arctic and alpine populations of Oxyria dygnia. Ecol. Monogr. 31, 1–29 (1961)
Lovegrove, B. G. The zoogeography of mammalian basal metabolic rate. Am. Nat. 156, 201–219 (2000)
Jordan, C. F. A world pattern of plant energetics. Am. Sci. 59, 425–433 (1971)
Ciais, P., Tans, P. P., Trolier, M., White, J. W. C. & Francy, R. J. A large North Hemisphere terrestrial CO2 sink indicated by the 13C/12C ratio of atmospheric CO2 . Science 269, 1098–1102 (1995)
Keeling, C. D. & Whorf, T. P. Trends '93: A Compendium of Data on Global Change Oak Ridge National Laboratory Report ORNL/CDIAC-65 16–26, (1994)
Falge, et al. Gap filling strategies for defensible annual sums of net ecosystem exchange. Agric. Forest Meteorol. 107, 43–69 (2001)
Baldocchi, D. D., Hicks, B. B. & Meyers, T. P. Measuring biosphere–atmosphere exchanges of biologically related gases with micrometeorological methods. Ecology 69, 1331–1340 (1988)
Nelson, D. L. & Cox, M. M. Lehninger Principles of Biochemistry 3rd edn (Worth Publishing, New York, 2000)
Vetter, R. A. H. Ecophysiological studies on citrate synthase. 1. Enzyme regulation of selected crustaceans with regard to temperature adaptation. J. Comp. Physiol. B 165, 46–55 (1995)
Raven, J. A. & Geider, R. J. Temperature and algal growth. New Phytol. 110, 441–461 (1988)
Nobel, P. S. Physiochemical and Environmental Plant Physiology (Academic, New York, 1999)
Earnshaw, M. J. Arrhenius plots of root respiration in some arctic plants. Arctic Alpine Res. 13, 425–430 (1981)
Acknowledgements
We thank D. Baldocchi for assistance with accessing FLUXNET data; the contributors of FLUXNET for their support of this project; and M. Weiser, D. Kerkhoff, N. Phillips, J. Harte, K. J. Niklas, S. Cowling, J. Williams and J. H. Brown for providing assistance and/or comments on earlier drafts. B.J.E. was supported by an NSF CAREER fellowship and a Center for Applied Biodiversity, Conservation International Fellowship, a LANL grant, and the University of Arizona. T.E.H. was supported by an award from IALC and the University of Arizona. B.J.E. and T.E.H. acknowledge support from the Institute for the Study of Planet Earth at the University of Arizona. J.F.G. acknowledges support from the Thaw Charitable Trust and the Packard Foundation. A.P.A. acknowledges support from NSF.
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Enquist, B., Economo, E., Huxman, T. et al. Scaling metabolism from organisms to ecosystems. Nature 423, 639–642 (2003). https://doi.org/10.1038/nature01671
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DOI: https://doi.org/10.1038/nature01671
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