Evaporação de um reservatório escavado ou piscinão para irrigação em Uberlândia/MG

Abstract

Water is essential for human life, and one of its applications can be found in agricultural production, such as irrigation. An effective method of using irrigation is by accumulating water in reservoirs. However, the process of evaporation is seen by water management officials as a "loss" that negatively impacts the dense network of reservoirs in the region. The aim of this study is to evaluate the loss due to evaporation using the Penman method, using data from a conventional meteorological station located in a reservoir in the Douradinho stream basin, and comparing it with the hypothetical evapotranspiration data of a maize crop planted in the region. The results showed that the volume of water lost due to evaporation in the reservoir is considerably higher than the water demand of maize in the region, suggesting that the evaporated volume could be better utilized for irrigation purposes. This information can have important implications for the sustainable management of water resources in the region, allowing for the optimization of water use and the promotion of more efficient and sustainable agricultural practices.