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).

Practices: Rice, cotton (on baiboho), groundnut, maize, cassava, peas Cape, beans, sugar cane, legumes. Practice of growing flood recession. needed water development. Shoreline protection through reforestation actions.

hill mountain Highlands North Zone

altitude tropical climate relatively temperate. hot and humid tropical climate (Northeast). Rain ranging from 1100 to 1900 mm / year, but up to 2.000mm / year. 3 observed seasons (rainy season with thunderstorms from November to April, rainy season from May to September drizzle, dry season from September to November. On the trays, soil ferrallitic yellow / red and red ferruginous tropical soils, soil waterlogged, soil semi-peat. vegetations made up of dense rainforest (North), dense deciduous forests (West), savannahs and steppes (center), shrublands or palm (Southwest).

Practices: Coffee, rice, cassava

hill mountain Highlands Zone South

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).

Practices: Arabica coffee, tea, wheat, rice, potato, maize, cassava, fruit crops, vegetable crops. Drainage problems identified in the valleys.

plains Middle East Zone

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).

Practices: Rice, coffee, corn, cassava, potato, fruit trees, cassava. In nivau shallows, need development work marshy areas. Installation of important anti-erosion devices on the slopes.

hill mountain Middle West Zone

Climate transition from warm climate and western semi-arid and South and the tropical climate of the highlands. average temperature 22 ° C. rain average 1.450mm, distribution 150 days. Tanety are dominated by lateritic soil moyennent desaturated, medium fertility. The lowlands are FOMES of waterlogged soils. Vegetations composed of dense rain forests (Southeast), sclerophyllous forests Uapaca (Center), grassy Hyparrhenia savannas (Eastern center), savannahs and steppes of Aristida (Southeast, middle), savannah grasslands Hyparrhenia (West) of bushland or palms (south wester), shrublands (south)

Practices: Rice, peanut, corn, cassava, soybean, onion, tomato, fruit crops. Very areas subject to erosion due to the frequent passage of bush fires. In the low funds received and narrow water management necessary (especially drainage).

plains North East Zone

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)

Practices: coffee, clove, banana, sugar cane, vanilla pepper, rice, cassava, fruit crops. Deforestation (practice tavy) promotes soil erosion.

floodplain North West Area

characterized by two types of climate: 1) south part subhumid climate with short rainy season (December to March), long dry season (April to November); rain 1,000 to 1,200 mm / year, average temperature 26 ° C; 2) north, sub-humid tropical climate with rainy season from November to March is characterized by heavy rainfall (1.500mm / year spread over 5 months), prevailing dry season from April to October; temperature 27 ° C. In the South, predominantly hydromorphic soils - in the center, great plains formed by soils derived from alluvial formations and marine deposits - north, floodplains areas dominated by rich baiboho soils. vegetations composed by dense deciduous forests (North), savannah grasslands Hyparrhenia, shrub or palm savannas (North and West), mangroves (coastal West part)

Practices: rice, nuts, pepper, tobacco, sugarcane, cotton, cassava, beans, onion, tomato, cassava, sweet potato, vegetable crops, fruit crops. Soils prone to erosion (need for watershed protection and the top part)

plains North Zone

Tropical climate semi-moist, hot low and medium altitudes. Abundant rains from November to April (> 1.800mm). Far North: warm and semi-humid sub. Season short rain and warm, very long dry season with periods of high winds. Dominance alluvial soil in silty-sandy sediments or sandy loam. lateritic soils on basalt, ferruginous and colluvial in Far North level. Vegetations composed of dense rain forest (Central and Southeast part) of savoka (east side and west), savannah grassland, shrub or palm (center).

Practices: cocoa, coffee, pepper, sugar cane, vanilla, oil palm, coconut, groundnut, corn, cassava, vegetable crops, potato. On planezes and flows gently sloping, small furnishings. On the slopes, anti-érosiveimportante protection. In the valleys, control drainage

plains South East Zone

hot and humid tropical climate. large and irregular rain (ranging from 1.700 to 3.500mm / year). 2 distinct seasons (rainy season or vatomandry, hot and humid from December to May, dry season or hosy, cool and dry from June to November). ferrallitic yellow / red and red soil unsophisticated dunes and sandy, organic hydromorphic soils and minerals. vegetations composed of dense forest ombrophie (center west), coastal meadows (iS), savannahs and steppes of Aristida (East), savoka (Center), savannah grasslands Hyparrhenia (Southwest).

Practices: Coffee, cloves, pepper, rice, oil palm, cassava. drainage problem in small valleys. significant erosion in forest areas due to tavy.

plains Zone South / South West

Tropical climate of semi-arid, dry season very strong (May to October). Rainfall average 600mm / year, uneven distribution, high concentration of rain from December to March. Average temperature 28 ° C. altitude <100m. Soils formed of recent fluvial material (silt-sandy soils, waterlogged clay limestone soils, heavy baiboho), ferruginous tropical soils with sandy rocks, soils calcimorphic, mangroves and salty soils. vegetations composed of dense deciduous forests (North), sclerophyllous forests Uapaca (Center), bush type xerophilous thickets (West, South), savannah grasslands heteeropogon (South), savannah grasslands Hyparrhenia (Center), shrublands or palm (North), savannas arbusitves (South)

Practices: corn, sorghum, cassava, sweet potato, sisal, castor. irrigation problem for agronomic interesting units (depressions, lowlands)