Reserve Forestiere et de Faune du Dja

Location:Cameroon
IUCN Category:IV
Area:1,551,322 acres (627,798 hectares)
Species:All  Endangered  Invasive
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:Aw (Climate: equatorial; Precipitation: winter dry)

Ecoregions

Northwestern Congolian lowland forests

Soils

Link to Map
Protected Area Boundary
 AB
   
Share 60 %30 %10 %
Soil TypeOrthic FerralsolsOrthic FerralsolsDystric NitosolsLithosols
Topsoil TextureMediumMediumMediumMedium
Reference Depth100 cm100 cm100 cm10 cm
DrainageModerately wellModerately wellModerately wellImperfectly
Available Water Capacity150 m150 m150 m15 mm
Topsoil Properties
Gravel3 %3 %11 %26 %
Sand60 %60 %44 %43 %
Silt14 %14 %33 %34 %
Clay26 %26 %23 %23 %
USDA TextureSandy clay loamSandy clay loamLoamLoam
Reference Bulk Density1.41 g/cm³1.41 g/cm³1.39 g/cm³1.39 g/cm³
Bulk Density1.4 g/cm³1.4 g/cm³1.35 g/cm³1.3 g/cm³
Organic Carbon1.06 %1.06 %0.99 %1.4 %
PH554.97.6
Clay Cation Exchange Capacity8 cmol kg⁻¹8 cmol kg⁻¹20 cmol kg⁻¹42 cmol kg⁻¹
Soil Cation Exchange Capacity6 cmol kg⁻¹6 cmol kg⁻¹9 cmol kg⁻¹15 cmol kg⁻¹
Base Saturation38 %38 %51 %100 %
Total Exchangeable Bases2 cmol kg⁻¹2 cmol kg⁻¹3.1 cmol kg⁻¹15.6 cmol kg⁻¹
Calcium Carbonate0 %0 %0 %3.9 %
Calcium Sulphate0 %0 %0 %0 %
Exchangeable Sodium3 %3 %1 %4 %
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-10.1 dS m-1
Subsoil Properties
Gravel3 %3 %26 % 
Sand51 %51 %35 % 
Silt14 %14 %24 % 
Clay35 %35 %41 % 
USDA TextureSandy claySandy clayClay 
Reference Bulk Density1.35 g/cm³1.35 g/cm³1.29 g/cm³ 
Bulk Density1.37 g/cm³1.37 g/cm³1.53 g/cm³ 
Organic Carbon0.35 %0.35 %0.38 % 
PH555 
Clay Cation Exchange Capacity9 cmol kg⁻¹9 cmol kg⁻¹18 cmol kg⁻¹ 
Soil Cation Exchange Capacity4 cmol kg⁻¹4 cmol kg⁻¹8 cmol kg⁻¹ 
Base Saturation46 %46 %28 % 
Total Exchangeable Bases2.8 cmol kg⁻¹2.8 cmol kg⁻¹4.7 cmol kg⁻¹ 
Calcium Carbonate0 %0 %0 % 
Calcium Sulphate0 %0 %0 % 
Exchangeable Sodium3 %3 %1 % 
Electrical Conductivity0.1 dS m-10.1 dS m-10.1 dS m-1 
Soil data provided by FAO/IIASA/ISRIC/ISSCAS/JRC, 2012. Harmonized World Soil Database (version 1.2). FAO, Rome, Italy and IIASA, Laxenburg, Austria.
Köppen climate classification provided by Kottek, M., J. Grieser, C. Beck, B. Rudolf, and F. Rubel, 2006: World Map of Köppen-Geiger Climate Classification updated. Meteorol. Z., 15, 259-263