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Root- and peat-based CO 2 emissions from oil palm plantations

Author

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  • Ai Dariah
  • Setiari Marwanto
  • Fahmuddin Agus

Abstract

Measured carbon dioxide (CO 2 ) flux from peat soils using the closed chamber technique combines root-related (autotrophic + heterotrophic where rhizosphere organisms are involved) and peat-based (heterotrophic) respiration. The latter contributes to peat loss while the former is linked to recent CO 2 removal through photosynthesis. The objective of this study was to separate root- from peat-based respiration. The study was conducted on peatland under 6 and 15 year old oil palm (Elaeis guineensis Jacq.) plantations in Jambi Province, Indonesia in 2011 to 2012. CO 2 emissions were measured in the field from 25 cm diameter and 25 cm tall closed chambers using an infrared gas analyser. Root sampling and CO 2 emissions measurements were at distances of 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, and 4.5 m from the centre of the base of the palm tree. The emission rate for the six and 15 year old oil palm plantations at ≥3.0 m from the centre of the tree were 38.2 ± 9.5 and 34.1 ± 15.9 Mg CO 2 ha −1 yr −1 , respectively. At distances >2.5 m, total respiration linearly decreased with distances from the trees. Heterotrophic respirations were 86 % of the 44.7 ± 11.2 and 71 % of 47.8 ± 21.3 Mg CO 2 ha −1 yr −1 of weighted surface flux, respectively for the 6 and 15 year old plantations. We propose that CO 2 flux measurements in oil palm plantations made at a distance of ≥3 m from the tree centre be used to represent the heterotrophic respiration that is relevant for the environmental impact assessment. Copyright Springer Science+Business Media Dordrecht 2014

Suggested Citation

  • Ai Dariah & Setiari Marwanto & Fahmuddin Agus, 2014. "Root- and peat-based CO 2 emissions from oil palm plantations," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 19(6), pages 831-843, August.
    • Handle: RePEc:spr:masfgc:v:19:y:2014:i:6:p:831-843
    DOI: 10.1007/s11027-013-9515-6
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    Cited by:

    1. Daniel Murdiyarso & Meli Fitriani Saragi-Sasmito & Anggi Rustini, 2019. "Greenhouse gas emissions in restored secondary tropical peat swamp forests," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 24(4), pages 507-520, April.

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