PLAN FOR DEVELOPMENT OF WATER RESOURCES OF HYDROGRAPHIC DEMARCATION OF MANABI, ECUADOR

In Ecuador, Manabi province is considered to be “specialized” in the field of agriculture. So, in 1990, according to the Integrated Plan for the development of the resource water of the province of Manabí (PHIMA), 7 projects of multiple purpose for irrigation, hydroelectric power generation and supply of drinking water were identified.The estimation of water needs was carried out on the basis of a population growth until 2050. Accordingly, established that the population of Manabí by 2020 will be 2’130, 000, and the total area of the irrigation surface will be in the order of 51900 hectares.Calculations show that the annual total volume of water required to meet the needs of irrigation and water supply will be 1,127.49 million cubic meters.Depending on the needs of water resources for water supply and for irrigation, hydrological, topographic and geological information gathered in 1989 identified certain sites close for the design of dams, as well as their heights and dimensions of the reservoirs.Having elapsed since more than 25 years, with updated meteorological and topographical data, proposes a consistent scheme for the development of water resources in river basin of Manabí, Ecuador.

useful volume, dead volume, elevation of the dam crest, evaporation, environmental flow