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Global meta-analysis shows that climate and land use disturbances increase forest soil CO2 efflux
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  • Oluwabunmi Akande,
  • Zilong Ma,
  • Chenyan Huang,
  • Fangliang He,
  • Scott Chang
Oluwabunmi Akande
University of Alberta

Corresponding Author:[email protected]

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Zilong Ma
Sun Yat-Sen University
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Chenyan Huang
Sun Yat-Sen University
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Fangliang He
University of Alberta
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Scott Chang
University of Alberta
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Abstract

Forest soil CO2 efflux (FCO2) is a crucial process in global carbon cycling; however, how FCO2 respond to disturbance regimes in different forest biomes is poorly understood. We quantified the effects of disturbance regimes on FCO2 across boreal, temperate, tropical, and Mediterranean forests based on 1240 observations from 380 studies. Globally, FCO2 was increased by 13 to 25% due to climatic perturbations such as elevated CO2 concentration, warming, and increased precipitation. FCO2 was increased by forest conversion to grassland and elevated carbon input by forest management practices but was reduced by decreased carbon input, fire, and acid rain. Disturbance also caused changes in soil temperature and water content, which in turn affected the direction and magnitude of disturbance effects on FCO2. Our results suggest that disturbance effects on FCO2 should be incorporated into earth system models to improve the projection of feedback between the terrestrial C cycle and climate change.
30 Sep 2022Submitted to Ecology Letters
04 Oct 2022Submission Checks Completed
04 Oct 2022Assigned to Editor
06 Oct 2022Reviewer(s) Assigned
16 Nov 2022Review(s) Completed, Editorial Evaluation Pending
17 Nov 2022Editorial Decision: Revise Major
13 Jan 2023Review(s) Completed, Editorial Evaluation Pending
13 Jan 20231st Revision Received
16 Jan 2023Submission Checks Completed
16 Jan 2023Assigned to Editor
17 Jan 2023Reviewer(s) Assigned
08 Feb 2023Editorial Decision: Revise Minor
10 Feb 2023Review(s) Completed, Editorial Evaluation Pending
10 Feb 20232nd Revision Received
13 Feb 2023Submission Checks Completed
13 Feb 2023Assigned to Editor
13 Feb 2023Reviewer(s) Assigned
14 Feb 2023Editorial Decision: Revise Minor
16 Feb 20233rd Revision Received
16 Feb 2023Review(s) Completed, Editorial Evaluation Pending
16 Feb 2023Submission Checks Completed
16 Feb 2023Assigned to Editor
16 Feb 2023Reviewer(s) Assigned
20 Feb 2023Editorial Decision: Accept