Reference soil Malaysia 51: Humic Podzol

MY051
Distribution of Podzols (rough estimation supplied by soilgrids)

 

Reference soil MY051: Humic Podzols

A tropical humus podzol with a strongly cemented humus pan in B2h horizon. The parent material consists of Pleistocene quartz sands, mainly derived from adamellite (biotite granite and granodiorite), admixture of thermodynamically metamorphosed pellitic rock possible. Deeper horizons (below 85 cm) may stem from chert or metamorphosed pellitic rock (residual). The A21, A22 and A3 horizon all show humus stainings, varying from blotches to streaks and patches (coloured 10 YR 7/2, 7.5 YR 5/2). The surface (gradient 0-2 %) is covered by an O-layer (7 cm), consisting of a root mat (2.5 YR 3/2) with decomposed litter. The clay content is increasing with depth (illuviation ?), the humus content decreasing. (additional climatic data: days with precipitation > 0,1 mm)

 

Classification

FAO-UNESCO-ISRIC 1974Humic Podzol

 

Local classification:Miri series