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    Conversion of intact peat swamp forest to oil palm plantation: effects on soil CO2 fluxes in Jambi, Sumatra

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    Authors
    Comeau L
    Hergoualc’h, Kristell
    Smith, J.U.
    Verchot, Louis
    Date
    2013
    Language
    en
    Type
    Working Paper
    Accessibility
    Open Access
    Metadata
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    Citation
    Comeau L, Hergoualc’h K, Smith JU, Verchot L. 2013. Conversion of intact peat swamp forest to oil palm plantation: effects on soil CO2 fluxes in Jambi, Sumatra. Working Paper No. 110. Bogor, Indonesia: Center for International Forestry Research (CIFOR).
    Permanent link to cite or share this item: http://hdl.handle.net/10568/35863
    External link to download this item: http://www.cifor.org/online-library/browse/view-publication/publication/4119.html
    Abstract/Description
    Tropical peatlands are among the largest pedologic pools of organic carbon. This study compared soil CO2 fluxes in an intact peat swamp forest, a transitional logged drained forest and an oil palm plantation located on the same alluvial peat plain (peat dome) in Jambi, Sumatra, Indonesia. Dynamic closed chambers were used to measure soil CO2 efflux from January to September 2012. Chambers were placed in pairs, with one close to a tree/palm and the other at mid-distance to the next tree/palm. In the oil palm plantation additional chambers were placed in frond decomposing lines and tertiary drainage canals. During the experiment, air and soil temperatures, water table level and rainfall were recorded. The fluxes were significantly larger in the oil palm plantation (28.4 ± 1.2 Mg C-CO2 ha–1 y–1) than in the transitional logged drained forest (18.5 ± 0.7 Mg C-CO2 ha–1 y–1) and in the intact peat swamp forest (16.0 ± 1.2 Mg C-CO2 ha–1 y–1). The CO2 fluxes were spatially variable according to distance to tree/ palm or when emitted from tertiary drainage canals but no clear trend was detected. A significant but weak relationship was found between CO2 fluxes and water table level in the peat swamp forest. Soil CO2 emissions in oil palm plantations were higher than those reported from Borneo by other authors. The soil CO2 flux should be separated into its auto- and heterotrophic components and balanced with C inputs and other C outputs in further studies to determine soil net atmospheric impacts on the climate system of this land-use change.
    CGIAR Affiliations
    Climate Change, Agriculture and Food Security
    AGROVOC Keywords
    AGRICULTURE; CLIMATE; ADAPTATION; WETLANDS
    Subjects
    LOW EMISSIONS DEVELOPMENT;
    Countries
    INDONESIA
    Regions
    ASIA; SOUTHEAST ASIA
    Collections
    • CCAFS Working Papers [284]

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