Preprints
https://doi.org/10.21203/rs.3.rs-1803105/v2
https://doi.org/10.21203/rs.3.rs-1803105/v2
21 Feb 2023
 | 21 Feb 2023

Inclination controls CO2 and N2O fluxes, but not CH4 uptake, from a temperate upland forest soil

Lauren Michelle Gillespie, Nathalie Ylenia Triches, Diego Abalos, Peter Finke, Sophie Zechmeister-Boltenstern, Stephan Glatzel, and Eugenio Díaz-Pinés

Abstract. Inclination and spatial variability in soil and litter properties influence soil greenhouse gas (GHG) fluxes, and thus on-going climate change, but their relationship in forest ecosystems is poorly understood. To elucidate this, we explored the effect of inclination, distance to a stream, soil moisture, soil temperature, and other soil and litter properties on soil-atmosphere fluxes of carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) with automated static chambers in a temperate upland forest in Eastern Austria. We hypothesised that soil CO2 emissions and CH4 uptake are higher in sloped locations with lower soil moisture content, whereas soil N2O emissions are higher in flat, wetter locations. During the measurement period, soil CO2 emissions were significantly higher on flat locations (p < 0.05), and increased with increasing soil temperature (p < 0.001) and decreasing soil moisture (p < 0.001). The soil acted as a CH4 sink, and CH4 uptake was not significantly related to inclination. However, CH4 uptake was significantly higher at locations furthest away from the stream compared to at the stream (p < 0.001), and positively related to litter weight and soil C content (p < 0.01). N2O fluxes were significantly higher on flat locations and further away from the stream (p < 0.05), and increased with increasing soil moisture (p < 0.001), soil temperature (p < 0.001) and litter depth (p < 0.05). Overall, this study underlines the importance of inclination and the resulting soil and litter properties in predicting GHG fluxes from forest soils and therefore their potential source-sink balance.

Journal article(s) based on this preprint

19 Sep 2023
Land inclination controls CO2 and N2O fluxes, but not CH4 uptake, in a temperate upland forest soil
Lauren M. Gillespie, Nathalie Y. Triches, Diego Abalos, Peter Finke, Sophie Zechmeister-Boltenstern, Stephan Glatzel, and Eugenio Díaz-Pinés
SOIL, 9, 517–531, https://doi.org/10.5194/soil-9-517-2023,https://doi.org/10.5194/soil-9-517-2023, 2023
Short summary

Lauren Michelle Gillespie et al.

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-255', Anonymous Referee #1, 18 Apr 2023
    • AC1: 'Reply on RC1', Lauren Gillespie, 05 Jun 2023
  • RC2: 'Comment on egusphere-2023-255', Anonymous Referee #2, 14 May 2023
    • AC2: 'Reply on RC2', Lauren Gillespie, 05 Jun 2023

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-255', Anonymous Referee #1, 18 Apr 2023
    • AC1: 'Reply on RC1', Lauren Gillespie, 05 Jun 2023
  • RC2: 'Comment on egusphere-2023-255', Anonymous Referee #2, 14 May 2023
    • AC2: 'Reply on RC2', Lauren Gillespie, 05 Jun 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish subject to minor revisions (review by editor) (08 Jun 2023) by Ember Morrissey
AR by Lauren Gillespie on behalf of the Authors (16 Jun 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (03 Jul 2023) by Ember Morrissey
ED: Publish as is (02 Aug 2023) by Engracia Madejón Rodríguez (Executive editor)
AR by Lauren Gillespie on behalf of the Authors (07 Aug 2023)  Manuscript 

Journal article(s) based on this preprint

19 Sep 2023
Land inclination controls CO2 and N2O fluxes, but not CH4 uptake, in a temperate upland forest soil
Lauren M. Gillespie, Nathalie Y. Triches, Diego Abalos, Peter Finke, Sophie Zechmeister-Boltenstern, Stephan Glatzel, and Eugenio Díaz-Pinés
SOIL, 9, 517–531, https://doi.org/10.5194/soil-9-517-2023,https://doi.org/10.5194/soil-9-517-2023, 2023
Short summary

Lauren Michelle Gillespie et al.

Lauren Michelle Gillespie et al.

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Short summary
Forest soil is potentially an important source or sink of greenhouse gases (CO2, N2O, and CH4), but this is affected by soil conditions. We studied how ground inclination and soil/litter properties influence the flux of these gases. CO2 and N2O were more affected by inclination than CH4; all were affected by soil/litter properties. This study underlines the importance of inclination and soil/litter properties in predicting greenhouse gas fluxes from forest soil and potential source-sink balance.