Citation
Ahmad Tarmizi M., . and Hasnol O., . and Farawahida M. D., . and Mohd Haniff H., . and Muhammad Pilus Z., . and Ismail A. B., . and Wosten Henk, . (2009) Best management practice on peat: water management in relation to peat subsidence and estimation of CO2 emission in Sessang Sarawak. [Proceedings Paper]
Abstract
Drainage depths linked to CO2 emission were derived primarily from secondary data on long-term monitoring of peat subsidence in drained peatlands. In this paper the study on peat subsidence was carried out in an area of shallow and deep peat in MPOB Research Station in Sessang Sarawak. In 2001 upon completion of the latest phase of peat development for oil palm planting the water management was improved to maintain the water level at 35cm to 45 cm for the whole plantation.Data on peat subsidence and oil palm yields were collected from 10 blocks of oil palms of different ages planted on peat ofdifferent depths ranging from shallow to deep peat. This study is to illustrate that optimum growth of oil palm can be attained sustainably at higher water table. The regression equation was established with subsidence data as a dependent variable whereas water table and time factor with quadratic effect were independent variables. Two separate equations were developed for different depths of peat. The study show: that the subsidence rate is very much related to the age of peat development i.e. years after oil palm has been planted. The subsidence rate over the years was declining and expected to stabilize after 15 years of peat development. The equation of peat subsidence rate in relation to the age of peat development was estimated based on yearly data of peat subsidence and water table infield drain at the MPOB Research Station in Sessang Sarawak. Bulk density of peat was estimated according to the age of peat development. CO2 emission estimated using different methods and parameters was compared High water table of 35cm to 45cm from the surface would reduce decomposition and mineralization rate ofpeat and hence prevent excessive CO2 emission. In the long-term oil palm would produce high yield even with less amount of nitrogen applied.
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Abstract
Drainage depths linked to CO2 emission were derived primarily from secondary data on long-term monitoring of peat subsidence in drained peatlands. In this paper the study on peat subsidence was carried out in an area of shallow and deep peat in MPOB Research Station in Sessang Sarawak. In 2001 upon completion of the latest phase of peat development for oil palm planting the water management was improved to maintain the water level at 35cm to 45 cm for the whole plantation.Data on peat subsidence and oil palm yields were collected from 10 blocks of oil palms of different ages planted on peat ofdifferent depths ranging from shallow to deep peat. This study is to illustrate that optimum growth of oil palm can be attained sustainably at higher water table. The regression equation was established with subsidence data as a dependent variable whereas water table and time factor with quadratic effect were independent variables. Two separate equations were developed for different depths of peat. The study show: that the subsidence rate is very much related to the age of peat development i.e. years after oil palm has been planted. The subsidence rate over the years was declining and expected to stabilize after 15 years of peat development. The equation of peat subsidence rate in relation to the age of peat development was estimated based on yearly data of peat subsidence and water table infield drain at the MPOB Research Station in Sessang Sarawak. Bulk density of peat was estimated according to the age of peat development. CO2 emission estimated using different methods and parameters was compared High water table of 35cm to 45cm from the surface would reduce decomposition and mineralization rate ofpeat and hence prevent excessive CO2 emission. In the long-term oil palm would produce high yield even with less amount of nitrogen applied.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Darul Ehsan Malaysia. mal TP684 P3I61 2009 vol. 1 Call Number |
| AGROVOC Term: | Water management |
| AGROVOC Term: | Subsidence |
| AGROVOC Term: | Peat soils |
| AGROVOC Term: | Peatlands |
| AGROVOC Term: | Planting |
| AGROVOC Term: | Planting depth |
| AGROVOC Term: | Yields |
| AGROVOC Term: | Drainage systems |
| AGROVOC Term: | Chemical soil types |
| AGROVOC Term: | Bulk density soil |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:15 |
| URI: | http://webagris.upm.edu.my/id/eprint/12370 |
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