Application of unified peat classification system at lower Baram Sarawak

Ahmad Tarmizi M., . and Paramananthan S., . and Wahid O, . and Mohd. Haniff H, . and Nordiana A. A., . (2011) Application of unified peat classification system at lower Baram Sarawak. [Proceedings Paper]

Soil mapping and classification in Peninsular Malaysia Sabah and Sarawak are different in terms of methodology definitions and classification. These differences resulted different mapping classification and definitions are used for organic soils surveys in these three regions. MPOB in collaboration with soil scientist and surveyors from relevant government agencies and private companies had established mapping strategis and unified classification system for organic soils. This organic soil classification system is suitable to classify and map the peatland in all regions of Malaysia. The classification system is considering an organic soil must have a minimum thickness of 50 cm. Other characteristics used were the nature of the organic soil materials in the sub-surface tier 50-100 cm the presence/absence and stage of decomposition of wood within 100 cm of the soil surface and the nature of the underling substratum. Depth phases of the organic soils were also identified. The organic soils classification system was tested at Lower Baram River Basin Sarawak covering an area of 148 000 ha and 82 000 ha of them are peatland. There were only two organic soil types identified in the area from the previous reconnaissance soil survey. Recent semi-detailed soil survey carried out had identified 69 soil mapping units which belong to 41 soil series and 6 miscellaneous land units. Out of these 23 mineral and 21 organic soil types were mapped. A soil map at a scale of 1:50000 of the Lower Baram Basin has been produced.

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Abstract

Soil mapping and classification in Peninsular Malaysia Sabah and Sarawak are different in terms of methodology definitions and classification. These differences resulted different mapping classification and definitions are used for organic soils surveys in these three regions. MPOB in collaboration with soil scientist and surveyors from relevant government agencies and private companies had established mapping strategis and unified classification system for organic soils. This organic soil classification system is suitable to classify and map the peatland in all regions of Malaysia. The classification system is considering an organic soil must have a minimum thickness of 50 cm. Other characteristics used were the nature of the organic soil materials in the sub-surface tier 50-100 cm the presence/absence and stage of decomposition of wood within 100 cm of the soil surface and the nature of the underling substratum. Depth phases of the organic soils were also identified. The organic soils classification system was tested at Lower Baram River Basin Sarawak covering an area of 148 000 ha and 82 000 ha of them are peatland. There were only two organic soil types identified in the area from the previous reconnaissance soil survey. Recent semi-detailed soil survey carried out had identified 69 soil mapping units which belong to 41 soil series and 6 miscellaneous land units. Out of these 23 mineral and 21 organic soil types were mapped. A soil map at a scale of 1:50000 of the Lower Baram Basin has been produced.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. TP684 P3I61 2011 Call Number.
AGROVOC Term:	Peat
AGROVOC Term:	Peatlands
AGROVOC Term:	Soil sciences
AGROVOC Term:	Land cover mapping
AGROVOC Term:	Land use mapping
AGROVOC Term:	Soil analysis
AGROVOC Term:	Environmental monitoring
AGROVOC Term:	Soil surveys
AGROVOC Term:	Land use planning
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:16
URI:	http://webagris.upm.edu.my/id/eprint/13857

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