Articles | Volume 2, issue 3
SOIL, 2, 403–419, 2016
https://doi.org/10.5194/soil-2-403-2016
SOIL, 2, 403–419, 2016
https://doi.org/10.5194/soil-2-403-2016

Original research article 12 Aug 2016

Original research article | 12 Aug 2016

Soil CO2 efflux in an old-growth southern conifer forest (Agathis australis) – magnitude, components and controls

Luitgard Schwendenmann and Cate Macinnis-Ng

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Interactive discussion

Status: closed
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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Revision (05 Jul 2016) by Axel Don
AR by Luitgard Schwendenmann on behalf of the Authors (18 Jul 2016)  Author's response    Manuscript
ED: Publish as is (29 Jul 2016) by Axel Don
ED: Publish as is (30 Jul 2016) by Jorge Mataix-Solera(Executive Editor)
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Short summary
This is the first study quantifying total soil CO2 efflux, heterotrophic and autotrophic respiration in an old-growth kauri forest. Root biomass explained a high proportion of the spatial variation suggesting that soil CO2 efflux in this forest is not only directly affected by the amount of autotrophic respiration but also by the supply of C through roots and mycorrhiza. Our findings also suggest that biotic factors such as tree structure should be investigated in soil carbon related studies.