Climatology: Will soil amplify climate change?

@article{Powlson2005ClimatologyWS,
  title={Climatology: Will soil amplify climate change?},
  author={David S. Powlson},
  journal={Nature},
  year={2005},
  volume={433},
  pages={204-205}
}
  • D. Powlson
  • Published 20 January 2005
  • Environmental Science
  • Nature
It had been thought by some that rising atmospheric temperatures would have no effect on the rate at which carbon is released from the soil. A study that revisits the data behind this theory now finds otherwise. 
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References

SHOWING 1-10 OF 14 REFERENCES
Respiration in the balance
Models of how forests will respond to climate change usually assume that carbon dioxide output from decomposing organic matter will increase with global warming. That assumption may be wrong.Models
Acceleration of global warming due to carbon-cycle feedbacks in a coupled climate model
TLDR
Results from a fully coupled, three-dimensional carbon–climate model are presented, indicating that carbon-cycle feedbacks could significantly accelerate climate change over the twenty-first century.
Global climate change and soil carbon stocks; predictions from two contrasting models for the turnover of organic carbon in soil
Enhanced release of CO2 to the atmosphere from soil organic carbon as a result of increased temperatures may lead to a positive feedback between climate change and the carbon cycle, resulting in much
Model estimates of CO2 emissions from soil in response to global warming
ONE effect of global warming will be to accelerate the decomposition of soil organic matter, thereby releasing CO2 to the atmosphere, which will further enhance the warming trend1–7. Such a feedback
Biogeochemistry: Soil warming and organic carbon content
TLDR
It is believed that positive feedback to global warming is still a concern and Giardina and Ryan's results are undermined by methodological factors and also by their turnover times being estimated on the assumption that soil carbon exists as a single homogeneous pool, which can mask the dynamics of a smaller, temperature-dependent soil-carbon fraction.
Total carbon and nitrogen in the soils of the world
The soil is important in sequestering atmospheric CO2 and in emitting trace gases (e.g. CO2, CH4 and N2O) that are radiatively active and enhance the ‘greenhouse’ effect. Land use changes and
Acclimatization of soil respiration to warming in a tall grass prairie
TLDR
Observations in a tall grass prairie ecosystem in the US Great Plains indicate that the temperature sensitivity of soil respiration decreases—or acclimatizes—under warming and that the acclim atization is greater at high temperatures, which may weaken the positive feedback between the terrestrial carbon cycle and climate.
Long-term sensitivity of soil carbon turnover to warming
TLDR
Evidence is presented that non-labile SOC is more sensitive to temperature than labile SOC, implying that the long-term positive feedback of soil decomposition in a warming world may be even stronger than predicted by global models.
Evidence that decomposition rates of organic carbon in mineral soil do not vary with temperature
TLDR
The data suggest that Cs decomposition rates for forest soils are not controlled by temperature limitations to microbial activity, and that increased temperature alone will not stimulate the decomposition of forest-derived carbon in mineral soil.
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