This study aims to show the effect of the climatic variability on the productions of coffee and cocoa of the area of Daoukro which is the principal producing area in the Ivory Coast. The methodological approach is summarized in two steps: first, the characterization and analysis of the impact of climate variability on water resources second monitoring developments in the production of coffee and cocoa (1964-2005) through statistical analysis. The centered and reduced index shows a great interannual variability of rainfalls which is organized in two climatic periods, a humid period (1956-1970) and a dry period (1971-2009). The rainfall deficit evaluated in the area of Daoukro reaches an average of 11% and fluctuated between 5% and 15%. Analysis of the average rainfalls of the wettest four months (March-June) every 10 years during five decades of Daoukro station shows that the period of the great season of rains fell from 4 months to 3 months. The decrease of the rainfall consecutive with the effects of the dryness involved a decrease of the agricultural production (the production of coffee and cocoa). The climate variability from 1964 to 2005 caused interannual fluctuation of the production of coffee and cocoa. Cocoa production in 2004-2005 is only 36% of that of 1981-1982 and that of coffee 43% of the production of 1981-1982.

The access to drinking water, in particular in the rural areas and semi-rural in Ivory Coast, constitutes a paramount factor in economic development, the improvement of the standard of living of the populations and their stabilization. The present study aims to raise the unequal distribution of the water supply points for the area of Daoukro and to make a contribution in the research of the zones favorable with the establishment of the productive water supply points in order to allow a good cover of the water needs. The adopted methodological approach is summarized in two stages: initially design of the chart of the water requirements (the access to drinking water) which highlights the zones of deficits followed by the cartography of the sites of establishment of the future water supply points. The knowledge of the space distribution of the population and amongst water supply point by locality made it possible to calculate the access to drinking water of the populations. The analysis of the chart set of themes of the storage areas reveals that nearly 80% of the total surface areas are occupied by zones favorable to the existence of groundwater. The various suitable zones with the establishment of work to large flows were charted and more than 150 sites favorable to the future establishments were selected.