An appraisal of Indonesia's immense peat carbon stock using national peatland maps: uncertainties and potential losses from conversion

Carbon Balance and Management
Matthew WarrenRandall Kolka

Abstract

A large proportion of the world's tropical peatlands occur in Indonesia where rapid conversion and associated losses of carbon, biodiversity and ecosystem services have brought peatland management to the forefront of Indonesia's climate mitigation efforts. We evaluated peat volume from two commonly referenced maps of peat distribution and depth published by Wetlands International (WI) and the Indonesian Ministry of Agriculture (MoA), and used regionally specific values of carbon density to calculate carbon stocks. Peatland extent and volume published in the MoA maps are lower than those in the WI maps, resulting in lower estimates of carbon storage. We estimate Indonesia's total peat carbon store to be within 13.6 GtC (the low MoA map estimate) and 40.5 GtC (the high WI map estimate) with a best estimate of 28.1 GtC: the midpoint of medium carbon stock estimates derived from WI (30.8 GtC) and MoA (25.3 GtC) maps. This estimate is about half of previous assessments which used an assumed average value of peat thickness for all Indonesian peatlands, and revises the current global tropical peat carbon pool to 75 GtC. Yet, these results do not diminish the significance of Indonesia's peatlands, which store an estimated 30% more carb...Continue Reading

References

Nov 27, 2009·Proceedings of the National Academy of Sciences of the United States of America·Uwe BallhornSuwido Limin
Jun 2, 2011·Proceedings of the National Academy of Sciences of the United States of America·Sassan S SaatchiAlexandra Morel
Feb 1, 2013·Folia primatologica; international journal of primatology·Katarzyna Nowak
Jul 22, 2014·Global Change Biology·Sofyan KurniantoSteve Frolking
Jan 13, 2017·Nature·Greta C DargieSuspense A Ifo
Jan 1, 2017·Mitigation and Adaptation Strategies for Global Change·Matthew WarrenSofyan Kurnianto

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Citations

Feb 9, 2018·Carbon Balance and Management·Catherine M YuleTse Yuen Lim
Nov 21, 2018·Proceedings of the National Academy of Sciences of the United States of America·Elizabeth B WigginsLiya E Yu
Jun 1, 2020·Global Change Biology·Massimo LupascuRahayu Sukmaria Sukri
Oct 19, 2020·Global Change Biology·Kelly RibeiroJean P Ometto
Oct 28, 2020·Proceedings of the National Academy of Sciences of the United States of America·Isabel J JonesSusanne H Sokolow
Dec 4, 2021·Nature Communications·L KielyH A Adrianto

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Software Mentioned

MoA
RePPProt

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