Relief: pénéplaine corrugated and curiracés mounds, Eaves, forehead and back of Cuesta and depression, pénéplaine alluvial and hills. Soil tropical ferruginous soils in concretion soil leached ferruginous induirés + unsophisticated soil erosion. Pluviométie: 1000 - 1200 mm, mono modal regime single rainy season. Climate: Sudano-Guinean to a single rainy season

Practices: Food crops: corn, sorghum, rice, millet, groundnut, cowpea, yam, sweet potato, taro; vegetables: tomato, onion, carrot, okra, Livestock: poultry, sheep, goats, cattle

other Forest area

Relief: Relief steep, rugged plateaus. Soil erosion of soils Licid, ferralitique soils, soil erosion unsophisticated. Rainfall: 1300 - 1700 mm with two rainy seasons. Climate: sub-equatorial climate of medium altitude.

Practices: Food crops: corn, sorghum, rice, cowpea, groundnut, yam, cassava, sweet potato. Vegetable crops: tomato, onion, carrot, lettuce, cabbage, okra. Livestock: poultry, sheep, goats

plains littoral

Terrain: Landscape tabular slightly wavy, depression, alluvial valleys and lagoons and mangroviens environments. Soils: red soils ferralitic, Vertisols and soils waterlogged, saline soils slightly evolved intake and / or hydromorphic. Rainfall: 900 to 1200 mm with two rainy seasons. Climate: Guinean climate with two rainy seasons and two dry seasons

Practices: Food crops: corn, rice, cowpea, groundnut, cassava, yam. Vegetable crops: tomato, onion, carrots, okra, lettuce, cabbage apple. Livestock: poultry, goats, sheep, pigs

plains wet savannah

Relief: Peneplain wavy. Soils: ferruginous leached soils concretions hydromorphe + vertisols located, ferruginous tropical soils leached and impoverished and concretion. Rainfall: 1000-1500 mm. transitional regime at the northern limit but frankly bimodal south. Climate: semi-tropical humid climate with two main seasons: a rainy season and dry season (central region) and transition equatorial climate with two rainy seasons and two dry season (eastern plateau region)

Practices: Food crops: corn, sorghum, rice, cowpea, groundnut, yam, sweet potato. Vegetable crops: tomato, onion, carrots, okra. Livestock: poultry, sheep, goats, pigs