Genesis, morphology and mineralogical composition of soils associated with tin mine and mangrove areas, Ranong Province
1984
Chao Yongchalermchai
This study emphasizes genesis, morphology and mineralogical composition of soils associated with tin mine and mangrove areas in Ranong Province. Six soils were found. They included Phuket series, Phangnga series, Krabi series, Thaimuang series, Ban Thon series and tin mine land soil. These soils were then selected for the study using pedon analysis approach. Results of the study revealed that Phuket, Phangnga and Thaimuang soils have been developed from colluvial deposits of shale whereas Ban Thon series has been developed from marine sand bar deposits and tin mine land soil is man made alluvial soil. All pedons are deep, well drained, with moderate to rapid permeability. Surface soils can be sand, clay loam or clay and their colors can be dark brown or grayish brown. Texture of their subsoils can be sand, clay loam or clay. The color of subsoil can be yellowish brown to brownish yellow. Phuket, Phangnga, Krabi and Thaimuang series have argillic subsoil horizon (Bt) with argillan and ferriargillan accumulation and coastings. The accumulation of iron, aluminum and organic matter as thick layer in subsoil of Ban Thon series were determined to be spodic horizon. All soils have strongly acid reaction with high organic matter content in surface soil but their subsoils have low organic matter
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This bibliographic record has been provided by Thai National AGRIS Centre, Kasetsart University
