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

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PROFILE PROFILE 140 140
Legend unit:
Soil classification: Plinthic Axrisol (FAO)
Typic PlinthuduIt (Soil Taxonomy)
Description:
Location:
About S km NE of Adjap village; 2°55'99 Nand 10°37'29 E
Elevation:
Landform and slope: Undulating to rolling uplands; upper slope 5 - 10%
Parent material: Gneisses and/or migmatites of the Precambrian shield
Vegetation:
Forest
Drainage:
Moderately well drained
Soil:
clay loam topsoil
Legend unit: DuI
Soil classification: Plinthic Axrisol (FAO)
Typic PlinthuduIt (Soil Taxonomy)
Description:
On 27-06-95 by Gerard Hazeu
Location:
About 8 km NE of Adjap village; 2°55'99 Nand 10°37'29 E
Elevation:
Landform and slope: Undulating to rolling uplands; upper slope 5 - 10%
Parent material: Gneisses and/or migmatites of the Precambrian shield
Vegetation:
Forest
Drainage:
Moderately well drained
Soil:
Very deep, yellowish brown sandy clay to clay with sandy loam to sandy
clay loam topsoil
Depth (cm)
Depth (cm)
0- 0- 7 7
7- 17
7- 17
17- 35
17- 35
35- 72
35- 72
72-170
72-170
Hor.
Hor.
Ah
Ah
DuI
On 27-06-95 by Gerard Hazeu
350m 350m
Very deep, yellowish brown sandy clay to clay with sandy loam to sandy
Description
Description
dark brown to brown (IOYR4/3); sandy loam; weak to moderate, very fine
dark brown to brown (IOYR4/3); sandy loam; weak to moderate, very fine
to fine crumb to subangular blocky; very friable, slightly sticky and
slightly plastic; few to common, fine to coarse roots; clear and smooth
transition to
to fine crumb to subangular blocky; very friable, slightly sticky and
slightly plastic; few to common, fine to coarse roots; clear and smooth
transition to
BA BA dark dark yellowish yellowish brown brown (IOYR4/6); (I0YR4/6); sandy sandy clay clay loam; loam; weak weak fine fine subangular subangular
blod:y; friable, slightly stick]' and slightly plastic; few to common, fine to
medium roots; clear and smooth transition to
Bwsl yellowish brown (IOYR5/6); slightly gravelly sandy clay loam; very few
bloc!,.-y; friable, slightly stic!"-y and slightly plastic; few to common, fine to
medium roots; clear and smooth transition to
Bwsl yellowish brown (I0YR5/6); slightly gravelly sandy clay loam; very few
small hard spherical iron concretions; weak to moderate, very fine to fine
subangular blocky; friable, slightly sticky and slightly plastic; few to
common, very fine to fine roots; gradual and smooth transition to
Bws2 brownish yellow (I OYR6/6); gravelly sandy clay; very few to few, small
small hard spherical iron concretions; weak to moderate, very fine to fine
subangular blocky; friable, slightly sticky and slightly plastic; few to
common, very fine to fine roots; gradual and smooth transition to
Bws2 brownish yellow (I OYR6/6); gravelly sandy clay; very few to few, small
to to large, large, hard hard angular angular to to spherical spherical iron iron concretions; concretions; weak weak to to moderate, moderate, very very
fine to fine subangular blocky; friable, slightly stick], and slightly plastic;
fine to fine subangular blocky; friable, slightly stic!,.-y and slightly plastic;
few very fine to fine roots; gradual and irregular transition to
Bv yellow (2.5Y7/8); very gravelly sandy clay; many (25%) medium
prominent diffuse IOYR4/8 and I OYR 7 18 mottles; few small to large, soft
few very fine to fine roots; gradual and irregular transition to
Bv yellow (2.5Y7/S); very gravelly sandy clay; many (25%) medium
prominent diffuse IOYR4/S and IOYR7/S mottles; few small to large, soft
to to hard, hard, angular angular to to spherical spherical iron iron concretions; concretions; weak weak very very fine fine subangular subangular
blocky and moderately coherent structure; friable, slightly sticky and
slightly plastic; few very fine to fine roots.
blocky and moderately coherent structure; friable, slightly sticky and
slightly plastic; few very fine to fine roots.
Horizon
Horizon
Ah
Ah
BA BA
Bws1 Bws1
Bws2
Bws2
Bv Bv
Bv Bv
Horizon
Horizon
Ah
Ah
BA
Bws1
Bws2
BA
Bws1
Bws2
Bv Bv
Bv Bv
Horizon
Horizon
Ah Ah
BA
Bws1
Bws2
Bv
Bv
BA
Bws1
Bws2
Bv
Bv
Profile 140
Particle size distribution
Depth (cm) % of fine earth; in J.lm pH
Profile 140
Particle size distribution
Depth (cm) % of fine earth; in J.lm pH