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Copyright of Eutopía: Revista de Desarrollo Económico Territorial is the property of Eutopia: Revista de Desarrollo Economico Territorial and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Problemas del Desarrollo. Revista Latinoamericana de Economía is the property of Universidad Nacional Autonoma de Mexico. Instituto de Investigaciones Economicas and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Naivasha basin in Kenya has been characterized in recent times by an intense agricultural development, this situation has caused the water consumption to increase. Because the amount of groundwater used for this purpose has increased substantially its level in the basin have been affected together with the flow directions. A groundwater numerical model has been constructed and calibrated in order to estimate the amount of flow in different areas in the whole basin, that is, groundwater balance calculations have been made with the model. A sensitivity analysis of the model has been made and the necessity for better knowledge of parameter spatial distribution has been confirmed. Future situations, which are likely to occur, have been modeled and the results interpreted. Pumping tests have been carried out and their results analyzed using available methods. The results have revealed the great variability of hydraulic parameters in the basin. Finally, the model results have been evaluated from an environmental point of view. [ABSTRACT FROM AUTHOR]