CURRENT AND FUTURE WATER BALANCE FOR COTTON CULTURE IN AMPARO DE SÃO FRANCISCO-SE.

Abstract

The application of the calculation of the Water Balance is a tool to aid agricultural planning, which allows defining the characteristics of the climatic regime of a locality. The objective is to perform the computation of the climatological water balance (BHC) according to the methodology developed by Thornthwaite (1948); Thornthwaite and Mather (1953) for the Amparo area of São Francisco - Sergipe, Brazil, which is located in the northeastern region of the State of Sergipe with current and future data through the a2 climate change scenario proposed by the IPCC. Monthly and annual rainfall data provided by the Northeast Development Superintendence (SUDENE, 1990) and the Sergipe Agricultural Development Company (EMDAGRO - SE, 2021) between 1964 and 2020 were used. The temperature data were estimated by the estima - T computational program corresponds to the same time interval of the rainfall data. The future series of thirty-year-old data (2070-2099) was carried out by future projections of scenario A2 of the HadCM3 global circulation model (IPCC).