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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 18
Biogeosciences, 13, 5171–5182, 2016
https://doi.org/10.5194/bg-13-5171-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 13, 5171–5182, 2016
https://doi.org/10.5194/bg-13-5171-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 19 Sep 2016

Research article | 19 Sep 2016

Autotrophic component of soil respiration is repressed by drought more than the heterotrophic one in dry grasslands

János Balogh et al.

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Cited articles

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Andrade, G., Mihara, K. L., Linderman, R. G., and Bethlenfalvay, G. J.: Bacteria from rhizosphere and hyphosphere soils of different arbuscular-mycorrhizal fungi, Plant Soil, 192, 71–79, https://doi.org/10.1023/A:1004249629643, 1997.
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Balogh, J., Pintér, K., Fóti, S., Cserhalmi, D., Papp, M., and Nagy, Z.: Dependence of soil respiration on soil moisture, clay content, soil organic matter, and CO2 uptake in dry grasslands, Soil Biol. Biochem., 43, 1006–1013, https://doi.org/10.1016/j.soilbio.2011.01.017, 2011.
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In the dry grassland investigated in this study the components of the soil CO2 efflux decreased at different rates under drought conditions. During drought the contribution made by the heterotrophic components was the highest and the rhizospheric component was the most sensitive to soil drying. According to our results, the heterotrophic component of soil respiration is the major contributor to the respiration activities during drought events.
In the dry grassland investigated in this study the components of the soil CO2 efflux decreased...
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