Net greenhouse gas balance of fibre wood plantation on peat in Indonesia

Chandra S. Deshmukh (), Ari P. Susanto, Nardi Nardi, Nurholis Nurholis, Sofyan Kurnianto, Yogi Suardiwerianto, M. Hendrizal, Ade Rhinaldy, Reyzaldi E. Mahfiz, Ankur R. Desai, Susan E. Page, Alexander R. Cobb, Takashi Hirano, Frédéric Guérin, Dominique Serça, Yves T. Prairie, Fahmuddin Agus, Dwi Astiani, Supiandi Sabiham and Chris D. Evans
Additional contact information
Chandra S. Deshmukh: Asia Pacific Resources International Ltd.
Ari P. Susanto: Asia Pacific Resources International Ltd.
Nardi Nardi: Asia Pacific Resources International Ltd.
Nurholis Nurholis: Asia Pacific Resources International Ltd.
Sofyan Kurnianto: Asia Pacific Resources International Ltd.
Yogi Suardiwerianto: Asia Pacific Resources International Ltd.
M. Hendrizal: Asia Pacific Resources International Ltd.
Ade Rhinaldy: Asia Pacific Resources International Ltd.
Reyzaldi E. Mahfiz: Asia Pacific Resources International Ltd.
Ankur R. Desai: University of Wisconsin-Madison
Susan E. Page: University of Leicester
Alexander R. Cobb: Singapore-MIT Alliance for Research and Technology
Takashi Hirano: Hokkaido University
Frédéric Guérin: Université Paul-Sabatier
Dominique Serça: LAERO, Université de Toulouse, CNRS, IRD, UT3
Yves T. Prairie: Université du Québec à Montréal
Fahmuddin Agus: National Research and Innovation Agency (BRIN)
Dwi Astiani: Tanjungpura University
Supiandi Sabiham: IPB University
Chris D. Evans: UK Centre for Ecology & Hydrology

Nature, 2023, vol. 616, issue 7958, 740-746

Abstract: Abstract Tropical peatlands cycle and store large amounts of carbon in their soil and biomass1–5. Climate and land-use change alters greenhouse gas (GHG) fluxes of tropical peatlands, but the magnitude of these changes remains highly uncertain6–19. Here we measure net ecosystem exchanges of carbon dioxide, methane and soil nitrous oxide fluxes between October 2016 and May 2022 from Acacia crassicarpa plantation, degraded forest and intact forest within the same peat landscape, representing land-cover-change trajectories in Sumatra, Indonesia. This allows us to present a full plantation rotation GHG flux balance in a fibre wood plantation on peatland. We find that the Acacia plantation has lower GHG emissions than the degraded site with a similar average groundwater level (GWL), despite more intensive land use. The GHG emissions from the Acacia plantation over a full plantation rotation (35.2 ± 4.7 tCO2-eq ha−1 year−1, average ± standard deviation) were around two times higher than those from the intact forest (20.3 ± 3.7 tCO2-eq ha−1 year−1), but only half of the current Intergovernmental Panel on Climate Change (IPCC) Tier 1 emission factor (EF)20 for this land use. Our results can help to reduce the uncertainty in GHG emissions estimates, provide an estimate of the impact of land-use change on tropical peat and develop science-based peatland management practices as nature-based climate solutions.

Date: 2023
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DOI: 10.1038/s41586-023-05860-9

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