Citrus

Tropical climate. low annual rainfall spread over 4 months (December to March). On the plateaus, tropical ferruginous soils, low lateritic soils, waterlogged soils on alluvial soils halomorphic underlying. Vegetations composed of dense forests with moss and lichens (North), dense deciduous forests (West), shrublands or palms, savannah grasslands Hyparrhenia (North), mangroves (coastal western part).

Tropical climate of altitude. 2 distinct seasons (rainy season from November to March, dry season from April to October, Existence of frosts during the dry season from June to August). Humidity decreases from east to west, temperature increases from North to South. ferrallitic yellow / red, red, volcanic soils, ferruginous tropical soils, soil slightly evolved alluvial dapport, waterlogged soils. vegetations made up of dense rainforest (East) of forest scléropylle Uapaca (West) of savoka (East), meadows and steppes of Aristida (West) of grassland Hyparrhenia (West).

tropical climate of altitude dry temperate winter and less watered. 2 distinct seasons (rainy from November to March, dry from April to October). Rain average of 1.000mm / year (distribution approx. 150 day). In plain area, valley and lowlands, waterlogged peat soils, organic and mineral, mineral soils of alluvial flows; tray area (tanety) ferrallitic heavily desaturated soils. Vegetations made up of grassland (north and center), steppes (north), swamps and dense rainforests (East and South).

humid climate (sub-equatorial) hot and humid throughout the year, no dry season. Rain> 2.000mm. ferrallitic on trays, waterlogged soils, sandy soils on the lowlands and the coastal area. Vegetations composed of dense rain forests (central and west), dense forest mosses and lichens (Southwest), savoka, savannahs and steppes of Aristida (East)