Estimativa dos componentes azul e verde da pegada hídrica da batata-doce no agreste sergipano

• Ano de defesa: 2016
• Autor(a) principal: Matos, Rodolfo Rafael Andrade de
• Orientador(a): Sousa, Inajá Francisco de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Sergipe
• Programa de Pós-Graduação: Pós-Graduação em Recursos Hídricos
• País: Brasil
• Palavras-chave em Português: Recursos hídricos; Plantas > Relações hídricas; Batata-doce; Produtividade agrícola; Pegada hídrica; CROPWAT; Necessidade hídrica da cultura
• Palavras-chave em Inglês: Water footprint; Sweet potato; Crop water requirement
• Área do conhecimento CNPq: ENGENHARIAS::ENGENHARIA SANITARIA
• Link de acesso: https://ri.ufs.br/handle/riufs/6187

Among the various water use methods adopted by humanity, which uses more water is agriculture through irrigation procedure, allowing the crops in a larger space and being able to meet the demand for food both for human consumption as animal consumption. This work presents the concept of Water Footprint, which is the amount of water, directly and indirectly used in the production of a product. The water footprint is divided into three components: Green, Blue and Grey. The objective of this study was to determine the values of the water footprint of the blue and green components for the production of sweet potatoes through the traditional method using CROPWAT model during the years 2010, 2011 and 2012. The work developed in the Perimeter Irrigation Poção da Ribeira (PIPR) belongs to the Water Resources and Irrigation Development Company (COHIDRO), located in the municipalities of Itabaiana and Campo do Brito, Sergipe. The results showed that the Water Footprint Green in 2010, 2011 and 2012 was 494.75 (m³ / ton), 672.13 (m³ / ton) and 402.81 (m³ / ton) respectively. Have the Blue Water Footprint in 2010, 2011 and 2012 was 351.1 (m³ / ton), 448.4 (m³ / ton) and 570.06 (m³ / ton) respectively. The results showed no relationship between the average rates of crop yield with a higher consumption of water resulting in a higher Water Footprint, there is influence of precipitation on Water Footprint of sweet potato and that there is no direct relationship between productivity levels with weather variables used in calculations of the Water Footprint.