Reference soil Nigeria 13: Plinthosol

NG013

Plinthosols occur mainly in the moist tropical regions in low-lying positions where iron from the soil and adjacent uplands is accumulating.

Characteristics

Soils having either a petroplinthic horizon within 50 cm from the soil surface, or a plinthic horizon which either starts within 50 cm from the soil surface, or within 100 cm from the soil surface if it underlies an albic horizon or a horizon with stagnic properties.

Distribution of Plinthosols (rough estimation supplied by soilgrids)

 

Reference soil NG013: Plinthosols

Brief description of the profile: Moderately deep, somewhat poorly drained (strong) brown sandy (clay) loam underlain by fairly hard plinthite from 88 cm downwards; horizontation is gradual, structural development is weak and confined to the upper part of the solum. Parent material: Metamorphosed granite from basement complex. Vegetation: Open savanna woodland with Burkea afrikana, Detarium microcarpum, Butyrospermum paradoxum, Gardenia, Terminalia avicennoides. Additional notes on profile description: B3: Red and black mottles. Climate data source: Agroclimatological data Africa 1, FAO. Rome 1984.

 

Classification

WRB 2006WRB 1998
Acric-Vetic- Plinthosol (Albic Hyperdystric)Albi-Acric- Plinthosol (Abruptic)
65-100 cmargic horizon
8-65 cmalbic horizon
88-100 cmplinthic horizon
FAO-UNESCO-ISRIC 1988FAO-UNESCO-ISRIC 1974
Acri-Albic PlinthosolPlinthic Acrisol
0-8 cmochric A horizon
65-100 cmargic B horizon
8-65 cmalbic E horizon
-plinthite
0-8 cmochric A horizon
65-100 cmargillic B horizon
8-65 cmalbic E horizon
-plinthite

 

Local classification:Lower series Borgu Game Res.