Conservation slows down emission increase from a tropical peatland in Indonesia
journal contributionposted on 2021-08-19, 14:14 authored by Chandra S Deshmukh, Dony Julius, Ankur R Desai, Adibtya Asyhari, Susan E Page, Nardi Nardi, Ari P Susanto, Nurholis Nurholis, M Hendrizal, Sofyan Kurnianto, Yogi Suardiwerianto, Yuandanis W Salam, Fahmuddin Agus, Dwi Astiani, Supiandi Sabiham, Vincent Gauci, Chris D Evans
Tropical peatlands are threatened by climate change and land-use changes, but there remain substantial uncertainties about their present and future role in the global carbon cycle due to limited measurements. Here, we present measurements of carbon dioxide and methane emissions between mid-2017 and mid-2020 as well as nitrous oxide emissions between 2019 and 2020 at two contrasting sites at a coastal peatland in Sumatra, Indonesia. We find that greenhouse-gas emissions from intact peatland increased substantially due to an extreme drought caused by a positive Indian Ocean Dipole phase combined with El Niño. The emission in the degraded site was two times greater than that at the intact site. The smaller emission from the intact peatland suggests that protecting the remaining intact tropical peatlands from degradation offers important climate benefits, avoiding greenhouse-gas emissions of 24 ± 5 tCO2e ha−1 yr−1 (average ± standard deviation) at our study site in Indonesia.
CitationNature Geoscience, 14, pp.484–490 (2021)
Author affiliationSchool of Geography, Geology and the Environment
- AM (Accepted Manuscript)