In Côte d'Ivoire, since 1980, coffee cultivation has experienced a decline in production due to drought, deforestation and the aging of the orchard. In order to revive this production, practices of replanting and regeneration by coppicing are adopted. The objective is to sustainably improve the production of coffee trees in order to generate added value. Specifically, it is a question of researching the effect of peasant practices on floristic diversity and determining coffee production according to these practices. A study on the effect of cultural practices on floristic diversity and coffee yield was carried out in Kéibla. The practices are: T0 (farmer practice), T1 (replanting + good agricultural practices without fertilization), T2 (replanting + good agricultural practices + fertilization) and T3 (replanting + good agricultural practices + fertilization). Following surface and itinerant surveys, the floristic diversity was determined. Quantitative dendrometric measurements allowed the structural-agronomic characterization. The results showed that the flora is rich with 66 species, 58 genera and 32 families. The analyzes showed that the T1 treatment recorded the best results with a density of 1259 plants/ha, a yield reaching 1041.07 kg/ha, a low mortality rate (23%) and a basal area of ​​33.70 m2. /Ha. In the T1 treatment, the species are diversified and better distributed. Taking peasant farming practices into account makes it possible to improve the production of coffee orchards.

To palliate the problems of energy and service woods shortage and decrease of soils fertility, studies are taken up in forest transition zone of Côte d’Ivoire on 20 species of dry zones arborescent leguminous. Two important objectives were defined. It is to first, identify leguminous adapted to dry areas of Côte d’Ivoire; then set pulses management technics for their use in reforestation. To do this, plants from nurseries were planted and monitored by periodic inventories. The survival, the adaptability, the vigor and the volume of wood leguminous species were evaluated. A coppice was made after coppicing trees at 30 cm from the ground at the beginning of the rainy season. Seven years after planting, 18 species have survived. Leucaena leucocephala, Leucaena shannonii, Albizia guachepele and Enterolobium cyclocarpum present high potentialities for reafforestation with a plantation strike root rate superior to 65 p. c., a middle diameter between 9.7 and 16.3 cm and woods productivity superior to 10 m3.ha-1.year-1. Cubage equations have been established for 11 arborescent leguminous species to estimate the production of wood in the transition zone. The wood technical exploitability ages of species plants are situated between 4 and 7 years. Some species react favorably to the treatment of coppicing.