Journal of Oil Palm Research Vol. 23  2011 August p.  1078-1086

Best management practices for oil palm cultivation on peat: ground water-table maintenance in relation to peat subsidence and estimation of CO2 emissions at Sessang, Sarawak

Author(s): HASNOL Othman * ; AHMAD TARMIZI Mohammed * ; FARAWAHIDA Mohamad Darus * ; MOHD HANIFF Harun * ; MUHAMMAD PILUS Zambri **

The study on peat subsidence was carried out in an area of shallow and deep peat in MPOB Research Station in Sessang, Sarawak. Upon completion of the latest phase of peat development for oil palm planting in 2001, water management was improved to maintain the ground water-table at 30 to 50 cm over the whole plantation. Data on peat subsidence and oil palm yields were collected from 10 blocks of oil palm of different ages planted on peat of different depths ranging from shallow to deep peat. A regression equation was established with subsidence data as a dependent variable, while ground water-table and time with quadratic effects were independent variables. Two separate equations were developed for the different depths of peat. The study shows that the subsidence rate was very much related to the age of peat development, i.e. the number of years after oil palm had been planted. The subsidence rate over the years declined and stabilised after 15 years of peat development. A relationship between bulk density of the peat and age of peat development was also established. The CO2 emission was estimated using the method based on depth of ground water-table. From the current study, it was found that maintaining high ground water-table was better for oil palm agronomics, while at the same time, it reduced the decomposition and mineralisation rates of peat, and hence prevented excessive CO2 emission.

Keywords: , , , ,

Author Information
* Malaysian Palm Oil Board, P. O. Box 10620, 50720 Kuala Lumpur, Malaysia.

** Tradewinds Plantation Bhd, Level 9 Menara HLA, No. 3 Jalan Kia Peng, 50450 Kuala Lumpur, Malaysia.

Cited By

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3. Evers, S., et al. "Keep Wetlands Wet: The Myth of Sustainable Development of Tropical Peatlands – Implications for Policies and Management." Global Change Biology, Vol. 23, No. 2, 2017:534-549, doi:10.1111/gcb.13422.
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5. Winarna, et al. "Effect of Ground Water Level and Steel Slag Application on Soil Moisture Variability and Actual Hydrophobicity of Peat Soil in Oil Palm Plantation." Journal of Agronomy, Vol. 14, No. 1, 2015:15-22, doi:10.3923/ja.2015.15.22.
6. Winarna, et al. "Hydrophobicity of Tropical Peat Soil from an Oil Palm Plantation in North Sumatra." Journal of Agronomy, Vol. 15, No. 3, 2016:114-121, doi:10.3923/ja.2016.114.121.
7. Woittiez, L. S., et al. "Yield Gaps in Oil Palm: A Quantitative Review of Contributing Factors." European Journal of Agronomy, Vol. 83, 2017:57-77, doi:10.1016/j.eja.2016.11.002.

Source: Scopus
Last Updated: 30 May 2017

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