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

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0\ PROFILE PROFILE 182 Legend unit: Cu2/Dul Soil classification: Haplic Acrisol (FAO) Typic Paleudult (Soil Taxonomy) Description: Location: About 2 km NE ofObo'otomba village; 3°04'11 Nand 10°35'68 E Elevation: Unknown Landform and slope: Undulating to rolling uplands; middle slope 20 - 25% Parent material: Gneisses and/or migmatites of the Precambrian shield Vegetation: Forest Drainage: Moderately well drained Soil: Very deep, yellowish brown clay with sandy clay loam to sandy clay topsoil Legend unit: Cu2/Dul Soil classification: Haplic Acrisol (FAO) Typic Paleudult (Soil Taxonomy) Description: On 26-07-95 by Gerard Hazeu Location: About 2 km NE ofObo'otomba village; 3°04'11 Nand 10°35'68 E Elevation: Unknown Landform and slope: Undulating to rolling uplands; middle slope 20 - 25% Parent material: Gneisses and/or migmatites of the Precambrian shield Vegetation: Forest Drainage: Moderately well drained Soil: Very deep, yellowish brown clay with sandy clay loam to sandy clay topsoil Depth (cm) Depth (cm) 0- 2 2- 12 2- 12 12- 32 12- 32 32-130 32-130 130-170 130-170 Hor. Hor. On 26-07-95 by Gerard Hazeu Description Description Ah brown brown (I (I OYR5/3); OYR5/3); 10anlY 10anlY sand; sand; weakly weakly coherent coherent single single grain; grain; loose loose to to very very friable, non sticky and slightly plastic; few fine to medium roots; clear and smooth transition to friable, non sticky and slightly plastic; few fine to medium roots; clear and smooth transition to BA yellowish yellowish brown brown (lOYR5/6); (IOYR5/6); sandy sandy clay clay loam; loam; weak weak very very fine fine to to fine fine subangular blocky; very friable, slightly sticky and slightly plastic; few subangular blocky; very friable, slightly sticky and slightly plastic; few fine to medium roots; clear and smooth transition to Bwsl brownish yellow (lOYR6/8); very gravelly sandy clay; many (15%) fine faint diffuse 7.5YR5/8 mottles; frequent small to large, hard irregular to angular iron concretions; weak very fine to fine subangular blocky; friable, slightly sticky and slightly plastic; few fine to medium roots; diffuse and irregular transition to fine to medium roots; clear and smooth transition to Bwsl brownish yellow (lOYR6/8); very gravelly sandy clay; many (15%) fine faint diffuse 7.5YR5/8 mottles; frequent small to large, hard irregular to angular iron concretions; weak very fine to fine subangular blocky; friable, slightly sticky and slightly plastic; few fine to medium roots; diffuse and irregular transition to Bv brownish brownish yellow yellow (IOYR6/8); (lOYR6/8); gravelly, gravelly, slightly slightly stony stony clay; clay; many many (25%) (25%) fine fine distinct diffuse 7.5.YR5/8 monies; few to frequent, small to large, soft to hard, irregular to angular iron concretions; weak very fine to fine subangular blocky; friable, slightly sticky and slightly plastic; few very fine to fine roots; gradual and smooth transition to distinct diffuse 7.5.YR5/8 mottles; few to frequent, small to large, soft to hard, irregular to angular iron concretions; weak very fine to fine subangular block)'; friable, slightly sticky and slightly plastic; few very fine to fine roots; gradual and smooth transition to BC brownish yellow (lOYR6/8); gravelly, slightly stony clay; many (25%) medium distinct diffuse 7.5YR5/8 mottles; few to frequent, small to large, soft to hard, irregular to angular iron concretions; weak very fine subangular blocky and strongly coherent porous massive structure; friable, slightly sticky and slightly plastic; few very fine to fine roots. BC brownish yellow (IOYR6/8); gravelly, slightly stony clay; many (25%) medium distinct diffuse 7.5YR5/8 monies; few to frequent, small to large, soft to hard, irregular to angular iron concretions; weak very fine subangular blocky and strongly coherent porous massive structure; friable, slightly sticky and slightly plastic; few very fine to fine roots. Horizon Horizon Ah BA Bws Bv Bv Bv Bc Horizon Horizon Ah Ah BA Bws Bws Bv Bv Bc Horizon Horizon Ah BA Bws Bws Bv Bv Bc Bc Profile 182 Profile 182 Particle size distribution Particle size distribution Depth (cm) % of fine earth; in I'm Depth (cm) % of fine earth; in "m pH
PROFILE PROFILE 201 201 Legend Legend unit: unit: Cu2 Cu2 Soil Soil classification: classification: Acri-xanthic Acri-xanthic Ferralsol Ferralsol (FAO) (FAO) Typic Typic Kandiudox Kandiudox (Soil (Soil Taxonomy) Taxonomy) Description: Description: Location: Location: About About 1.5 1.5 km km S S ofEngomba ofEngomba village; village; 3°04'84 3°04'84 Nand Nand 10°39'45 10°39'45 E E Elevation: Elevation: Landforrn Landforrn and and slope: slope: Rolling Rolling uplands; uplands; summit, summit, upper upper slope slope 10 10 -- 15% 15% Parent Parent material: material: Gneisses Gneisses of of the the Prccambrian Prccambrian shield shield Vegetation: Vegetation: Forest Forest Drainage: Drainage: Soil: Soil: 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 Depth Depth (cm) (cm) 0- 0- 5 5 5- 5- 18 18 18- 18- 61 61 61- 61- 95 95 95-152 95-152 152-185 152-185 Hor. Hor. On On 10-08-95 10-08-95 by by Gerard Gerard Hazeu Hazeu 390m 390m Well Well drained drained Description Description Ah Ah very very dark dark brown brown (7.5YR2.5/3); (7.5YR2.5/3); sandy sandy clay clay loam; loam; moderate moderate to to strong, strong, very very fine fine to to fine fine crumb crumb to to subangular subangular blocky; blocky; very very friable, friable, slightly slightly sticky sticky and and slightly slightly plastic; plastic; common common to to many, many, very very fine fine to to fine fine roots; roots; clear clear and and smooth smooth transition transition to to BA BA dark dark yellowish yellowish brown brown (I (I OYR4/6); OYR4/6); sandy sandy clay clay to to clay; clay; moderate moderate to to strong, strong, 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 common, common, fine fine to to coarse coarse roots; roots; clear clear and and smooth smooth transition transition to to Bws Bws I I yellowish yellowish brown brown (IOYR5/6); (IOYR5/6); clay; clay; moderate moderate very very fine fine to to fine fine subangular subangular blod;y; blod;y; friable, friable, slightly slightly stick), stick), and and slightly slightly plastic; plastic; few few to to common, common, fine fine to to medium medium roots; roots; gradual gradual and and wavy wavy transition transition to to Bws2 Bws2 yellowish yellowish brown brown (IOYR5/8); (IOYR5/8); slightly slightly gravelly gravelly clay; clay; few few small small hard hard spherical spherical iron iron concretions; concretions; weak weak to to moderate, moderate, fine fine to to medium medium subangular subangular blocky; blocky; friable, friable, slightly slightly sticky sticky and and slightly slightly plastic; plastic; very very few few to to few, few, very very fine fine to to fine fine roots; roots; gradual gradual and and wavy wavy transition transition to to Bws3 Bws3 yellowish yellowish brown brown (IOYR5/8); (IOYR5/8); slightly slightly gravelly gravelly clay; clay; very very few few «5%) «5%) fine fine distinct distinct diffuse diffuse 2.5YR4/8 2.5YR4/8 mottles; mottles; few few small small hard hard spherical spherical iron iron concretions; concretions; weak weak fine fine to to medium medium subangular subangular blocky; blocky; friable, friable, slightly slightly stick), stick), and and slightly slightly plastic; plastic; very very few few to to few, few, fine fine to to medium medium roots; roots; gradual gradual and and smooth smooth transition transition to to Bws4 Bws4 yellowish yellowish brown brown (I0YR5/8); (I0YR5/8); gravelly gravelly clay; clay; many many (25%) (25%) fine fine to to medium, medium, distinct distinct diffuse diffuse 2.5YR4/8 2.5YR4/8 mottles; mottles; few few small small to to large, large, hard hard irregular irregular to to spherical spherical iron iron concretions; concretions; weak weak fine fine to to medium medium 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 Bws3 Bws3 Bws4 Bws4 Horizoo Horizoo Ab Ab BA BA Bwsl Bwsl Bws2 Bws2 Bws3 Bws3 Bws4 Bws4 Horizoo Horizoo Ab Ab BA BA Bwsl Bwsl Bws2 Bws2 Bws3 Bws3 Bws4 Bws4 Profile Profile 201 201 Particle Particle size size distribution distribution Depth Depth (cm) (cm) % % of of fine fine earth; earth; in in I'm I'm pH pH
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Landscape ecological survey (1: 100
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ABSTRACT Gemerden, van, B.S, G.W. H
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5.2.4 Valley Bottom soils .........
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PREFACE ABOUT TROPENBOS The Tropenb
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SUMMARY This report presents the re
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1. INTRODUCTION 1.1 FOREST LAND INV
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2. STUDY AREA 2.1 LOCATION AND INFR
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The Ntem complex is comparable to t
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as hunting, fishing and gathering o
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3. METHODOLOGY 3.1 LANDSCAPE ECOLOG
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The described land and soil related
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3.5 LEGEND AND MAP COMPILATION The
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The moderately dissected uplands wi
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5. SOILS 5.1 LITERATURE REVIEW The'
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Table 5.1 Soil types of the TCP res
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have an udic moisture regime as exp
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The pH2 of the Nyangong Nyangong to
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Next to kaolinite, the aluminum hyd
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5.5.2 Soil genesis The following so
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6. VEGETATION 6.1 LITERATURE REVIEW
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Plant communities communities Ha lI
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6.4.2 Podococcus Podococcus - Polya
Page 64 and 65: Most common species in the herb lay
Page 66 and 67: In the shrub like vegetation of of
Page 68 and 69: intensity shifting cultivation take
Page 70: these valley bottoms are sufficient
Page 73 and 74: REFERENCES Aleva, G.J.J. (ed.). (19
Page 75 and 76: Kekem, A.J. van, Pulles, J.H.M. and
Page 78 and 79: 00 o
Page 81 and 82: ANNEX III METHODS FOR CHEMICAL AND
Page 83 and 84: CEC and exchangeable bases (with 1
Page 85 and 86: Conclusions The majority of origina
Page 87: ANNEX IV Soil profile descriptions
Page 91: -..0 w PROFILE 71 Legend unit: Soil
Page 95 and 96: PROFILE 123 Legend unit: Bh2 Soil c
Page 97 and 98: PROFILE 134 Legend unit: Soil class
Page 99 and 100: o PROFILE 215 Legend unit: Bh2 Soil
Page 101 and 102: PROFILE 254 Legend unit: Soil class
Page 104 and 105: e> 0\ IV.B Ebom soil type PROFILE 1
Page 106 and 107: o o 00 00 PROFILE PROFILE 140 140 L
Page 108 and 109: o PROFILE 147 Legend unit: Cui Soil
Page 110: N PROFILE PROFILE 153 Legend unit:
Page 113: VI VI PROFILE PROFILE 181 181 Legen
Page 117: PROFILE PROFILE 204 204 Legend Lege
Page 123 and 124: PROFILE PROFILE 137 137 Legend Lege
Page 125 and 126: PROFILE PROFILE ISO ISO Legend Lege
Page 129: w w PROFILE PROFILE 219 219 Legend
Page 133 and 134: w w Vl Vl PROFILE PROFILE 183 183 L
Page 137: ANNEX V Vegetation data ANNEX V Veg
Page 148 and 149: Vegetation type la U lIb lIe III IV
Page 150 and 151: Vegetation type la II lIb IIc III I
Page 152 and 153: 2. Non-differential species 2. Non-
Page 154 and 155: Vegetation type la lIa lib ne Ilia
Page 156 and 157: Vegetation type la lIa lib lie Ilia
Page 158 and 159: Vegetation type la lIa lib lie Ilia
Page 160 and 161: Columbidae Columbidae Treron austra
Page 162: Sylviidae Sylviidae Bathmocercus ru
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[en] Landscape Ecological Survey of the Bipindi-Akom II ... - ITTO

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