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Climate fails to predict wood decomposition at regional scales

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Abstract

Decomposition of organic matter strongly influences ecosystem carbon storage1. In Earth-system models, climate is a predominant control on the decomposition rates of organic matter2,3,4,5. This assumption is based on the mean response of decomposition to climate, yet there is a growing appreciation in other areas of global change science that projections based on mean responses can be irrelevant and misleading6,7. We test whether climate controls on the decomposition rate of dead wood—a carbon stock estimated to represent 73 ± 6 Pg carbon globally8—are sensitive to the spatial scale from which they are inferred. We show that the common assumption that climate is a predominant control on decomposition is supported only when local-scale variation is aggregated into mean values. Disaggregated data instead reveal that local-scale factors explain 73% of the variation in wood decomposition, and climate only 28%. Further, the temperature sensitivity of decomposition estimated from local versus mean analyses is 1.3-times greater. Fundamental issues with mean correlations were highlighted decades ago9,10, yet mean climate–decomposition relationships are used to generate simulations that inform management and adaptation under environmental change. Our results suggest that to predict accurately how decomposition will respond to climate change, models must account for local-scale factors that control regional dynamics.

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Figure 1: Competing conceptual models of relationships between decomposition and climate across regional to global gradients.
Figure 2: Relationships between wood decomposition, climate and fungi when local-scale variation is collapsed into a mean value for each of the five locations across the regional gradient.
Figure 3: Decomposition of wood blocks is greater with higher temperatures, fungal colonization and termite biomass across a regional gradient in eastern US temperate forest.

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References

  1. Wieder, W. R., Bonan, G. B. & Allison, S. D. Global soil carbon projections are improved by modelling microbial processes. Nature Clim. Change 3, 909–912 (2013).

    Article  CAS  Google Scholar 

  2. Berg, B. et al. Litter mass-loss rates in pine forests for Europe and Eastern United States: Some relationships with climate and litter quality. Biogeochemistry 20, 127–159 (1993).

    Article  Google Scholar 

  3. Currie, W. S. et al. Cross-biome transplants of plant litter show decomposition models extend to a broader climatic range but lose predictability at the decadal time scale. Glob. Change Biol. 16, 1744–1761 (2010).

    Article  Google Scholar 

  4. Meentemeyer, V. Macroclimate and lignin control of litter decomposition rates. Ecology 59, 465–472 (1978).

    Article  CAS  Google Scholar 

  5. Moore, T. R. et al. Litter decomposition rates in Canadian forests. Glob. Change Biol. 5, 75–82 (1999).

    Article  Google Scholar 

  6. Clark, J. S. et al. Individual-scale variation, species-scale differences: Inference needed to understand diversity. Ecol. Lett. 14, 1273–1287 (2011).

    Article  Google Scholar 

  7. Mace, G. M. Ecology must evolve. Nature 503, 191–192 (2013).

    Article  Google Scholar 

  8. Pan, Y. et al. A large and persistent carbon sink in the world’s forests. Science 333, 988–993 (2011).

    Article  CAS  Google Scholar 

  9. Harper, J. L. A Darwinian approach to plant ecology. J. Ecol. 55, 247–270 (1967).

    Article  Google Scholar 

  10. Robinson, W. S. Ecological correlations and the behavior of individuals. Am. Sociol. Rev. 15, 351–357 (1950).

    Article  Google Scholar 

  11. Cornwell, W. K. et al. Plant species traits are the predominant control on litter decomposition rates within biomes worldwide. Ecol. Lett. 11, 1065–1071 (2008).

    Article  Google Scholar 

  12. Wall, D. H. et al. Global decomposition experiment shows soil animal impacts on decomposition are climate-dependent. Glob. Change Biol. 14, 2661–2677 (2008).

    Google Scholar 

  13. Bonan, G. B., Hartman, M. D., Parton, W. J. & Wieder, W. R. Evaluating litter decomposition in earth system models with long-term litterbag experiments: An example using the Community Land Model version 4 (CLM4). Glob. Change Biol. 19, 957–974 (2013).

    Article  Google Scholar 

  14. Allison, S. D., Wallenstein, M. D. & Bradford, M. A. Soil-carbon response to warming dependent on microbial physiology. Nature Geosci. 3, 336–340 (2010).

    Article  CAS  Google Scholar 

  15. Bradford, M. A. et al. Thermal adaptation of soil microbial respiration to elevated temperature. Ecol. Lett. 11, 1316–1327 (2008).

    Article  Google Scholar 

  16. Norby, R. J., Warren, J. M., Iversen, C. M., Medlyn, B. E. & McMurtrie, R. E. CO2 enhancement of forest productivity constrained by limited nitrogen availability. Proc. Natl Acad. Sci. USA 107, 19368–19373 (2010).

    Article  CAS  Google Scholar 

  17. Gholz, H. L., Wedin, D. A., Smitherman, S. M., Harmon, M. E. & Parton, W. J. Long-term dynamics of pine and hardwood litter in contrasting environments: Toward a global model of decomposition. Glob. Change Biol. 6, 751–765 (2000).

    Article  Google Scholar 

  18. Heath, L. S., Smith, J. E. & Birdsey, R. A. in The Potential of US Forest Soils to Sequester Carbon and Mitigate the Greenhouse Effect (eds Kimble, J. M., Heath, L. S., Birdsey, R. A. & Lal, R.) 35–45 (Lewis Publishers CRC Press, 2003).

    Google Scholar 

  19. Cornwell, W. K. et al. Plant traits and wood fates across the globe: Rotted, burned, or consumed? Glob. Change Biol. 15, 2431–2449 (2009).

    Article  Google Scholar 

  20. Harmon, M. E., Bond-Lamberty, B., Tang, J. & Vargas, R. Heterotrophic respiration in disturbed forests: A review with examples from North America. J. Geophys. Res. 116, G00K04 (2011).

    Article  Google Scholar 

  21. Lindenmayer, D. B., Claridge, A. W., Gilmore, A. M., Michael, D. & Lindenmayer, B. D. The ecological roles of logs in Australian forests and the potential impacts of harvesting intensification on log-using biota. Pac. Conserv. Biol. 8, 121–140 (2002).

    Article  Google Scholar 

  22. Crowther, T. W., Boddy, L. & Jones, T. H. Functional and ecological consequences of saprotrophic fungus–grazer interactions. ISME J. 6, 1992–2001 (2012).

    Article  CAS  Google Scholar 

  23. Dickie, I. A., Fukami, T., Wilkie, J. P., Allen, R. B. & Buchanan, P. K. Do assembly history effects attenuate from species to ecosystem properties? A field test with wood-inhabiting fungi. Ecol. Lett. 15, 133–141 (2012).

    Article  Google Scholar 

  24. Cornelissen, J. H. C. et al. Controls on coarse wood decay in temperate tree species: Birth of the LOGLIFE Experiment. Ambio 41, 231–245 (2012).

    Article  Google Scholar 

  25. Boddy, L., Frankland, J. C. & van West, P. Ecology of Saprotrophic Basidiomycetes (Academic, 2008).

    Google Scholar 

  26. Treseder, K. K. The extent of mycorrhizal colonization of roots and its influence on plant growth and phosphorus content. Plant Soil 371, 1–13 (2013).

    Article  CAS  Google Scholar 

  27. Aerts, R. Climate, leaf litter chemistry and leaf litter decomposition in terrestrial ecosystems: A triangular relationship. Oikos 79, 439–449 (1997).

    Article  Google Scholar 

  28. Adair, E. C. et al. Simple three-pool model accurately describes patterns of long-term litter decomposition in diverse climates. Glob. Change Biol. 14, 2636–2660 (2008).

    Google Scholar 

  29. King, J. R., Warren, R. J. II & Bradford, M. A. Social insects dominate eastern US temperate hardwood forest macroinvertebrate communities in warmer regions. PLoS ONE 8, e75843 (2013).

    Article  CAS  Google Scholar 

  30. Ulyshen, M. D. & Wagner, T. L. Quantifying arthropod contributions to wood decay. Methods Ecol. Evol. 4, 345–352 (2013).

    Article  Google Scholar 

  31. Rastetter, E. B. et al. Aggregating fine-scale ecological knowledge to model coarser-scale attributes of ecosystems. Ecol. Appl. 2, 55–70 (1992).

    Article  Google Scholar 

  32. Sutherland, W. J. et al. Identification of 100 fundamental ecological questions. J. Ecol. 101, 58–67 (2013).

    Article  Google Scholar 

  33. Rehfeldt, G. E. et al. Intraspecific responses to climate in Pinus sylvestris. Glob. Change Biol. 8, 912–929 (2002).

    Article  Google Scholar 

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Acknowledgements

Thanks to A. Neupane and J. Snajdr for laboratory assistance, and P. Raymond, O. Schmitz, D. Menge and B. Taylor for comments on earlier drafts. For site-use permissions we thank the Florida Department of Environmental Protection (San Felasco Hammock State Park), the US Forest Service (Coweeta Hydrologic Laboratory and Chattahoochee National Forest), the Yale School of Forests (Yale Myers Research Forest) and the Warnell School of Forestry (Whitehall Forest). Wood chemistry was determined by the Yale Earth System Center for Stable Isotopic Studies. Research was supported by US National Science Foundation grants to M.A.B. (DEB-1021098), J.R.K. (DEB-1020415) and the Coweeta LTER Program. P.B. was supported by the RC of the Institute of Microbiology.

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Contributions

M.A.B. and R.J.W. contributed equally to this work. Together with J.R.K., they conceived and established the study. M.A.B., R.J.W., P.B., T.W.C., E.E.O. and J.R.K. performed field and laboratory work. M.A.B., R.J.W. and S.A.W. analysed data. W.R.W. modelled the decomposition data. M.A.B. wrote the first draft of the manuscript. All authors contributed to data interpretation and paper writing.

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Correspondence to Mark A. Bradford.

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The authors declare no competing financial interests.

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Bradford, M., Warren II, R., Baldrian, P. et al. Climate fails to predict wood decomposition at regional scales. Nature Clim Change 4, 625–630 (2014). https://doi.org/10.1038/nclimate2251

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