Potential water demand from the agricultural sector in hydrographic sub-basins in the southeast of the state of São Paulo-Brazil

Autor: José Augusto Di Lollo, Luiz Eduardo Moschini, Reinaldo Lorandi, Eduardo Goulart Collares, Ana Paula Pereira Carvalho
Přispěvatelé: Universidade Federal de São Carlos (UFSCar), Universidade Estadual Paulista (UNESP)
Rok vydání: 2021
Předmět:
Zdroj: Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 0167-8809
DOI: 10.1016/j.agee.2021.107508
Popis: Made available in DSpace on 2022-04-28T19:40:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) In Brazil, water management in agriculture is an extremely important issue in terms of water security, as well as in other regions of the world. Thus, the study presents a method to measure the potential water demand in the agricultural sector in two pairs (Pair 1 and Pair 2) of hydrographic sub-basins (SB) inserted in the Piracicaba River basin, located in southeastern Brazil. The methods adopted consisted of: using orbital sensor data to identify the types of temporary and permanent crops in the studied areas; preparing the Normalized Difference Vegetation Index to classify temporary crops, in four levels, which represent their development stages; collecting the irrigation need for each permanent and temporary crop through the “Technical Coefficients for Irrigated Agriculture” platform under the control of the National Water Agency; and, calculating the daily Potential Water Demand in the agricultural sector. The potential water demand showed differences between the pairs of the hydrographic sub-basins, due to the extension and the type of the predominant cultures. It is noteworthy that the Córrego dos Coqueiros hydrographic sub-basin is an area where the water supply may be compromised, due to the use of water resources in several sectors, in addition to agriculture. The need for crop irrigation, obtained through the National Water Agency platform associated with the geoprocessing of satellite images, made it possible to measure the daily potential water demand on the hydrographic sub-basin scale, which can assist in the assessment of the hydrographic region and the formulation of measures aimed at the sustainable use of water resources. Federal University of São Carlos Department of Environmental Sciences, Washington Luís Highway, km 235, SP-310 State University of Minas Gerais Geoprocessing and Environmental Zoning Laboratory, Avenida Juca Stockler, 1.130 São Paulo State University Civil Engineering Department, Avenida Brasil, 56 São Paulo State University Civil Engineering Department, Avenida Brasil, 56 CAPES: 001 FAPESP: 2018/14145-4
Databáze: OpenAIRE
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