[en] Landscape Ecological Survey of the Bipindi-Akom II ... - ITTO

PROFILE 152
Legend unit: Du2
Soil classification: Acri-xanthic Ferralsol (FAO)
Typic Kandiudult (Soil Taxonomy)
Description:
On 12-07-95 by Gerard Hazeu
Location:
About 900 m SW ofMelen village; 3°02'80 Nand 10°31'64 E
Elevation:
900 m
Landform and slope: Rolling uplands; summit 5%
Parent material: Gneisses of the Precambrian shield
Vegetation:
Secondary forest
Drainage:
Well drained
Soil:
Deep, yellowish brown to strong brown clay with sandy clay loam to sandy
clay topsoil
Depth (cm)
0-3
3-16
16-45/65
45/65-101
101-130
1I0r. Description
Ah dark yellowish brown (IOYR4/4); sandy clay loam; strong to moderate,
fine crumb to subangular blocky; slightly hard, friable, slightly sticky and
slightly plastic; common very fine to fine roots; abrupt and smooth
transition to
BA yellowish brown (I0YR5/6); sandy clay; moderate fine subangular blocky;
hard, friable, slightly sticky and slightly plastic; few to common, very fine
to medium roots; gradual and smooth transition to
Bwsl strong brown (7.5YR5/8); slightly gravelly clay; few (2%) fine distinct
diffuse 2.5YR5/8 mottles; very few small soft irregular iron concretions;
weak to moderate, fine to medium subangular blocky; slightly hard, friable,
slightly sticky and slightly plastic; very few to few, very fine to coarse
roots; gradual and wavy transition to
Bws2 strong brown (7.5YR5/8); gravelly clay; few (10%) fine distinct diffuse
2.5YR5/8 mottles; few small hard spherical iron concretions; weak to
moderate, fine angular to subangular blocky; friable, slightly sticky and
slightly plastic; very few very fine roots; gradual and broken transition to
BC yellow (I0YR7/8); gravelly, bouldery clay; many (25%) medium distinct
diffuse 2.5YR5/8 mottIes; few small soft to hard, irregular to spherical iron
concretions; weak to moderate, medium angular to subangular blocky;
firm, slightly sticky and slightly plastic; very few very fine roots.
Horizon
Ah
BA
Bwsl
Bws2
BC
."
Horizon
Ah
BA
Bwsl
Bws2
BC
Horizon
Ab
BA
Bwsl
Bws2
BC
Profile 152
Particle size dislribulion
Depth (cm) % of fine earth; in ,"m
pH