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

CONTENTS
page
PREFACE .................................................... 9
SUMMARy .................................................. 11
1. INTRODUCTION ............................................ 13
1.1 Forest Land Inventory and Land Evaluation Project (Lul) ............... 13
1.2 Research objectives ........................................ 13
1. 3 Course of the study ........................................ 13
1.4 Report outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 14
2. STUDY AREA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15
2.1 Location and infrastructure ................................... 15
2.2 Climate ................................................ 15
2.3 Hydrology ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17
2.4 Geology................................................ 18
2.5 Geomorphology ........................................... 20
2.6 Soils ....... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20
2.7 Vegetation .............................................. 21
2.8 Wildlife ................................................ 23
2.9 Population .............................................. 23
2.10 2.10 Land-use Land-use ............................................... 24
3. METHODOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 27
3.1 Landscape ecological approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 27
3.2 Aerial photo interpretation .................................... 27
3.3 Fieldwork............................................... 28
3.3.1 General ............................................ 28
3.3.2 Landform and soil ..................................... 29
3.3.3 Vegetation .......................................... 30
3.4 Classification ...............................,............. .. ............................. ,............. 32
3.5 Legend and map compilation .................................. 33
4. LANDFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 35
4.1 Literature review .......................................... 35
4.2 Landform classification 35
4.2.1 Dissected erosional plains (pd) ............................. 36
4.2.2 Uplands (ul and u2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 36
4.2.3 Hills (hI and h2) ...................................... 37
4.2.4 Mountains (m) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 37
4.2.5 Valley Bottoms (v) ..................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 38
5. SOILS .................................................... 39
5.1 Literature review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 39
5.2 Soil types and classification ., ................................. 40
5.2.1 Nyangong soils ....................................... 41
5.2.2 Ebom soils .......................................... 41
5.2.3 Ebimimbang soils .................... -.................. 42
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