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The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

Carbon losses due to soil warming: Do autotrophic and heterotrophic soil respiration respond equally?

SCHINDLBACHER, ANDREAS, ZECHMEISTER‐BOLTENSTERN, SOPHIE, JANDL, ROBERT·2009·Global Change Biology

Abstract

Global warming has the potential to increase soil respiration (RS), one of the major fluxes in the global carbon (C) cycle. RS consists of an autotrophic (RA) and a heterotrophic (RH) component. We combined a soil warming experiment with a trenching experiment to assess how RS, RA, and RH are affected. The experiment was conducted in a mature forest dominated by Norway spruce. The site is located in the Austrian Alps on dolomitic bedrock. We warmed the soil of undisturbed and trenched plots by means of heating cables 4 °C above ambient during the snow‐free seasons of 2005 and 2006. Soil warming increased the CO 2 efflux from control plots (RS) by ∼45% during 2005 and ∼47% during 2006. The CO 2 efflux from trenched plots (RH) increased by ∼39% during 2005 and ∼45% during 2006. Similar responses of RS and RH indicated that the autotrophic and heterotrophic components of RS responded equally to the temperature increase. Thirty‐five to forty percent or 1 t C ha−1 yr−1 of the overall annual increase in RS (2.8 t C ha−1 yr−1) was autotrophic. The remaining, heterotrophic part of soil respiration (1.8 t C ha−1 yr−1), represented the warming‐induced C loss from the soil. The autotrophic component showed a distinct seasonal pattern. Contribution of RA to RS was highest during summer. Seasonally derived Q10 values reflected this pattern and were correspondingly high (5.3–9.3). The autotrophic CO 2 efflux increase due to the 4 °C warming implied a Q10 of 2.9. Hence, seasonally derived Q10 of RA did not solely reflect the seasonal soil temperature development.

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Metadata

Authors
SCHINDLBACHER, A., ZECHMEISTER‐BOLTENSTERN, S., & JANDL, R.
Venue
Global Change Biology
Publisher
Wiley
Published
2009-02-25
Volume
15
Issue
4
Pages
901-913
ISSN
  • 1354-1013 (ISSN-L)
  • 1365-2486
OpenAlex
W2027839745
Cited by
259
References
55
FWCI
22.56
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Carbon losses due to soil warming: Do autotrophic and heterotrophic soil respiration respond equally? https://app.cochat.ai/papers/10.1111/j.1365-2486.2008.01757.x
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SCHINDLBACHER, A., ZECHMEISTER‐BOLTENSTERN, S., & JANDL, R. (2009). Carbon losses due to soil warming: Do autotrophic and heterotrophic soil respiration respond equally? Global Change Biology. https://doi.org/10.1111/j.1365-2486.2008.01757.x

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