Letter | Published:

Similar response of labile and resistant soil organic matter pools to changes in temperature

  • A Corrigendum to this article was published on 11 August 2005

Abstract

Our understanding of the relationship between the decomposition of soil organic matter (SOM) and soil temperature affects our predictions of the impact of climate change on soil-stored carbon1. One current opinion is that the decomposition of soil labile carbon is sensitive to temperature variation whereas resistant components are insensitive2,3,4. The resistant carbon or organic matter in mineral soil is then assumed to be unresponsive to global warming2,4. But the global pattern and magnitude of the predicted future soil carbon stock will mainly rely on the temperature sensitivity of these resistant carbon pools. To investigate this sensitivity, we have incubated soils under changing temperature. Here we report that SOM decomposition or soil basal respiration rate was significantly affected by changes in SOM components associated with soil depth, sampling method and incubation time. We find, however, that the temperature sensitivity for SOM decomposition was not affected, suggesting that the temperature sensitivity for resistant organic matter pools does not differ significantly from that of labile pools, and that both types of SOM will therefore respond similarly to global warming.

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References

  1. 1

    Lenton, T. M. & Huntingford, C. Global terrestrial carbon storage and uncertainties in its temperature sensitivity examined with a simple model. Glob. Change Biol. 9, 1333–1352 (2003)

  2. 2

    Liski, J., Ilvesniemi, H., Mäkelä, A. & Westman, C. J. CO2 emissions from soil in response to climatic warming are overestimated—The decomposition of old soil organic matter is tolerant of temperature. Ambio 28, 171–174 (1999)

  3. 3

    Thornley, J. H. M. & Cannell, M. G. R. Soil carbon storage response to temperature: a hypothesis. Ann. Bot. 87, 591–598 (2001)

  4. 4

    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)

  5. 5

    Fang, C. & Moncrieff, J. B. The dependence of soil CO2 efflux on temperature. Soil Biol. Biochem. 33, 155–165 (2001)

  6. 6

    Sanderman, J., Amundson, R. G. & Baldocchi, D. D. Application of eddy covariance measurements to the temperature dependence of soil organic matter mean residence time. Glob. Biogeochem. Cycles 17, doi:10.1029/2001GB001833 (2003)

  7. 7

    Schlesinger, W. H. & Andrews, J. A. Soil respiration and the global carbon cycle. Biogeochemistry 48, 7–20 (2000)

  8. 8

    Jobbágy, E. G. & Jackson, R. B. The vertical distribution of soil organic carbon and its relation to climate and vegetation. Ecol. Appl. 10, 423–436 (2000)

  9. 9

    Rustad, L. E. et al. A meta-analysis of the response of soil respiration, net nitrogen mineralization, and aboveground plant growth to experimental ecosystem warming. Oecologia 126, 543–562 (2001)

  10. 10

    Peterjohn, W. T., Melillo, J. M. & Bowles, S. T. Soil warming and trace gas fluxes: experimental design and preliminary flux results. Oecologia 93, 18–24 (1993)

  11. 11

    Peterjohn, W. T. et al. Response of trace gas fluxes and N availability to experimentally elevated soil temperature. Ecol. Appl. 4, 617–625 (1994)

  12. 12

    Dalias, P., Anderson, J. M., Bottner, P. & Coûteaux, M.-M. Temperature responses of carbon mineralization in conifer forest soils from different regional climates incubated under standard laboratory conditions. Glob. Change Biol. 6, 181–192 (2001)

  13. 13

    Trumbore, S. E., Chadwick, O. A. & Amundson, R. Rapid exchange between soil carbon and atmospheric carbon dioxide driven by temperature change. Science 272, 393–396 (1996)

  14. 14

    Winkler, J. P., Cherry, R. S. & Schlesinger, W. H. The Q 10 relationship of microbial respiration in a temperate forest soil. Soil Biol. Biochem. 28, 1067–1072 (1996)

  15. 15

    MacDonald, N. W., Zak, D. R. & Pregitzer, K. S. Temperature effects on kinetics of microbial respiration and net nitrogen and sulfur mineralization. Soil Sci. Soc. Am. J. 59, 233–240 (1995)

  16. 16

    Ross, D. J. & Tate, K. R. Microbial C and N, and respiratory activity, in litter and soil of a southern beech (Nothofagus) forest: distribution and properties. Soil Biol. Biochem. 25, 477–483 (1994)

  17. 17

    Reichstein, M., Bednorz, F., Broll, G. & Kätterer, T. Temperature dependence of carbon mineralisation: conclusions from a long-term incubation of subalpine soil samples. Soil Biol. Biochem. 32, 947–958 (2000)

  18. 18

    Fierer, N., Allen, A. S., Schimel, J. P. & Holden, P. A. Controls on microbial CO2 production: a comparison of surface and subsurface soil horizon. Glob. Change Biol. 9, 1322–1332 (2003)

  19. 19

    Lovell, R. D. & Jarvis, S. C. Soil microbial biomass and activity in soil from different grassland management treatments stored under controlled conditions. Soil Biol. Biochem. 30, 2077–2085 (1998)

  20. 20

    Lomander, A., Kätterer, T. & Andrén, O. Carbon dioxide evolution from top- and subsoil as affected by moisture and constant and fluctuating temperature. Soil Biol. Biochem. 30, 2017–2022 (1998)

  21. 21

    Grisi, B., Grace, C., Brookes, P. C., Benedetti, A. & Dell'abate, M. T. Temperature effects on organic matter and microbial biomass dynamics in temperate and tropical soils. Soil Biol. Biochem. 30, 1309–1315 (1998)

  22. 22

    IPCC. Special Report on Emissions Scenarios (Cambridge Univ. Press, Cambridge, UK, 2000)

  23. 23

    Coleman, K. & Jenkinson, D. S. in Evaluation of Soil Organic Matter Models Using Existing Long-Term Datasets (eds Powlson, D. S., Smith, P. & Smith, J. U.) 237–246 (NATO ASI Series I Vol. 38, Springer, Heidelberg, 1996)

  24. 24

    Allen, S. E., Grimshaw, H. M., Parkingson, J. A. & Quarmby, C. Chemical Analysis of Ecological Materials 137–139 (Blackwell Scientific, Oxford, 1974)

  25. 25

    Martin-Olmedo, P. & Rees, R. M. Short-term N availability in response to dissolved organic-carbon from poultry manure, alone or in combination with cellulose. Biol. Fert. Soils 29, 386–393 (1999)

  26. 26

    Öhlinger, R. in Methods in Soil Biology (eds Schinner, F. et al.) 56–58 (Springer, Berlin, 1995)

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Acknowledgements

We thank M. Wattenbarch and C. Zhang for assistance with the modelling. The pan-European modelling used data sets arising from the EU-funded ATEAM project.

Author information

Correspondence to Changming Fang.

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Competing interests

The authors declare that they have no competing financial interests.

Supplementary information

Supplementary Methods

This file explains how the measured soil respiration data were edited, the methods we used to estimate Q10 values from respiration rates at different temperatures, and how we assessed the contribution of resistant carbon pool to the total soil organic carbon decomposition and the Q10 value. (DOC 53 kb)

Supplementary Figures S1–3

Supplementary Figure S1 shows the impact of temperature and incubation time on soil basal respiration rate of root-free samples. Supplementary Figure S2 shows contribution of resistant and labile components to soil basal respiration and the relative importance of resistant carbon decompostition with incubation time. Supplementary Figure S3 shows impacts of changing Q10 value for resistant carbon (humus) decomposition on the temperature dependence of soil basal respiration. The figures show the variation in soil respiration rate with time and temperature, contributions of resistant carbon pool to the total respiration rate and the Q10 value. Figures support that the resistant carbon pool is equally sensitive to temperature change to labile pools. (DOC 139 kb)

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Further reading

Figure 1: Soil carbon components, respiration rate and associated Q10 values with respect to soil depth and sampling method (four replicates for each sample).
Figure 2: Variations in respiration rate and soil carbon pools with increasing incubation time.
Figure 3: Changes in soil C by 2100 for European soils.

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