Macromorphology and micromorphology of coastal peatland from Kapuas/Barito and Kahayan River areas, Central Kalimantan (Indonesia)
2002
Lusiana, F. (Institut Pertanian Bogor (Indonesia))) | Widiatmaka | Hardjowigeno, S.
This study was carried out on macromorphology and micromorphology of coastal peat from Kapuas/Barito and Kahayan River areas, Central Kalimantan. The study consisted of field observation, physical and chemical laboratory analysis and micromorphological observation. The profiles consisted of Oa and Oe horizons in the organic soil material and Cg horizon in the mineral material. The degree of decomposition of organic material varies from hemic to sapric. The textures of mineral material are clay for the soil in Kahayan River area and clay to silty clay for the soil in Kapuas/Barito River area. The soils from Kapuas/Barito River area have higher fiber content, exchangeable bases, base saturation, N-total and P-available compared to the soil from the Kahayan River area. Micromorphological analysis indicated similarity of soil properties in the two areas, especially in the relative position of mineral material to organic material and excreted material. The different micromorphologic characteristics were in fine organic material texture, size and quantity of the excrement. The analysis gave an indication of the existence of moder formation in the organic material and clay coating character in the mineral material
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