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

N N
PROFILE PROFILE 216 216
Legend Legend unit: unit:
Soil Soil classification:
classification:
Description: Description:
Location: Location:
Elevation: Elevation:
Landform Landform and and slope: slope:
Parent Parent material: material:
Vegetation: Vegetation:
Drainage: Drainage:
Soil: Soil:
Depth Depth (cm) (cm) 1I0r. 1I0r.
0- 0- 6 6 Ah Ah
6- 6- 20 20 BA BA
20- 20- 45 45 Bwsl Bwsl
45-120 45-120 Bws2 Bws2
120-200 120-200 BC BC
Bh2 Bh2
Acri-xanthic Acri-xanthic Ferralsol Ferralsol (FAO) (FAO)
Typic Typic Kandiudult Kandiudult (Soil (Soil Taxonomy) Taxonomy)
On On 12-08-95 12-08-95 by by Gerard Gerard Hazeu Hazeu
About About I I km km S S of of Ma'amenyin Ma'amenyin village; village; 3°03'58 3°03'58 Nand Nand 10°46'42 10°46'42 E E
450m 450m
Complex Complex of of hills; hills; lower lower slope slope 25 25 -- 35% 35%
Gneisses Gneisses of of the the Precambrian Precambrian shield shield
Forest Forest
Well Well drained drained
Very Very deep, deep, yellowish yellowish brown brown clay clay with with sandy sandy clay clay loam loam to to sandy sandy clay clay
topsoil topsoil
Description Description
very very dark dark brown brown (7.5YR2.5/3); (7.5YR2.5/3); sandy sandy clay clay loam loam to to sandy sandy clay; clay; moderate moderate
very very fine fine to to fine fine crumb crumb to to subangular subangular blocky; blocky; friable, friable, slightly slightly sticky sticky and and
slightly slightly plastic; plastic; few few to to many, many, fine fine to to coarse coarse roots; roots; clear clear and and smooth smooth
transition transition to to
dark dark yellowish yellowish brown brown (IOYR4/6); (IOYR4/6); sandy sandy clay; clay; moderate moderate very very fine fine to to fine fine
subangular subangular blocky; blocky; friable, friable, slightly slightly stick), stick), and and slightly slightly plastic; plastic; few few to to many, many,
fine fine to to medium medium roots; roots; gradual gradual and and smooth smooth transition transition to to
yellowish yellowish brown brown (I (I OYR5/6); OYR5/6); clay; clay; weak weak to to moderate, moderate, very very fine fine subangular subangular
block)'; block)'; friable, friable, slightly slightly sticky sticky and and slightly slightly plastic; plastic; very very few few to to many, many, fine fine
to to coarse coarse roots; roots; clear clear and and smooth smooth transition transition to to
yellowish yellowish brown brown (IOYR5/8); (IOYR5/8); clay; clay; very very few few (2%) (2%) fine fine faint faint diffuse diffuse 5YR5/8 5YR5/8
mottles; mottles; weak weak to to moderate, moderate, very very fine fine subangular subangular blocky; blocky; friable, friable, slightly slightly
sticky sticky and and slightly slightly plastic; plastic; few few to to common, common, very very fine fine to to fine fine roots; roots; clear clear
and and wavy wavy transition transition to to
yellowish yellowish brown brown (IOYR5/8); (IOYR5/8); gravelly, gravelly, slightly slightly stony stony clay; clay; many many (15%) (15%) fine fine
faint faint diffuse diffuse 5YR5/8 5YR5/8 mottles; mottles; few few small small to to large, large, hard hard irregular irregular to to angular angular
iron iron concretions; concretions; weak weak very very fine fine subangular subangular blocky; blocky; friable, friable, slightly slightly sticky sticky
and and slightly slightly plastic; plastic; very very few few very very fine fine to to fine fine roots. roots.
Horizon Horizon
Ah Ah
BA BA
Bwsl Bwsl
Bws2 Bws2
BC BC
Horizon Horizon
Ah Ah
BA BA
Bwsl Bwsl
Bws2 Bws2
BC BC
Horizon Horizon
Ah Ah
BA BA
Bwsl Bwsl
Bws2 Bws2
BC BC
Profile Profile 216 216
Particle Particle size size distribution distribution
Depth Depth % % of of fine fine earth; earth; in in J.lnI J.lnI
(cm) (cm)
pH pH