Tropical peatlands in Indonesia have been disturbed over decades and are a source of carbon dioxide (CO2) into the atmosphere by peat respiration and peatland fire. With a portable solar spectrometer, we have performed measurements of column-averaged CO2 dry-air molar mixing ratios, XCO2, in Palangka Raya, Indonesia, and quantify the emission dynamics of the peatland with use of the data for weather, fire hotspot, ground water table, local airport operation visibility and weather radar images. Total emission of CO2 from surface and underground peat fires as well as from peatland ecosystem is evaluated by day-to-day variability of XCO2. We found that the peatland fire and the net ecosystem CO2 exchange contributed with the same order of magnitude to the CO2 emission during the non-El Niño Southern Oscillation year of July 2014-August 2015. © 2018 The Author(s).
- Authors: Iriana, W., Tonokura, K., Inoue, G., Kawasaki, M., Kozan, O., Fujimoto, K., Ohashi, M., Morino, I., Someya, Y., Imasu, R., Rahman, M.A., Gunawan, D.
- Author Affiliation: Nagoya University, Kyoto University, Research Institute for Humanity and Nature, Kagoshima University, National Institute for Environmental Studies, University of Tokyo, Indonesia Agency for Meteorology Climatology and Geophysics (BMKG)
- Subjects: peatlands, forest fires, carbon dioxide, emissions, spectometry, land use change, mapping
- Publication type: Journal Article
- Source: Scientific Reports 8(1): 8437
- Year: 2018
- DOI: https://doi.org/10.1038/s41598-018-26477-3