Data/hora: 11/06/2024 01:29:39

Biblioteca(s): | Embrapa Territorial.
Data corrente: | 23/11/2015
Data da última atualização: | 23/11/2015
Autoria: | LEIVAS, J. F.; TEIXEIRA, A. H. de C.; ANDRADE, R. G.; VICTORIA, D. de C.; SILVA, G. B. S. da; BOLFE, E. L.
Afiliação: | JANICE FREITAS LEIVAS, CNPM; ANTONIO HERIBERTO DE C TEIXEIRA, CNPM; RICARDO GUIMARAES ANDRADE, CNPM; DANIEL DE CASTRO VICTORIA, CNPM; GUSTAVO BAYMA SIQUEIRA DA SILVA, CNPM; EDSON LUIS BOLFE, CNPM.
Título: | Application of agrometeorological spectral model in rice area in southern Brazil.
Ano de publicação: | 2015
Fonte/Imprenta: | Proceedings of SPIE - International Society for Optical Engineering, v. 9637, p. 96372B-1-96372B-8, 2015.
Idioma: | Português
Conteúdo: | The southern region is responsable for 70% of rice production in Brazil. In this study, rice areas of Rio Grande do Sul were selected, using the land use classification, scale 1: 100,000, provided by Brazilian Institute of Geography and Statistics (IBGE). MODIS Images were used and meteorological data, available by National Institute of Meteorology (INMET). The period of analysis was crop season 2011/2012, october to march. To obtain evapotranspiration was applied agrometeorological-spectral model SAFER (Simple Algorithm For Retrieving Evapotranspiration). From the analysis of the results, on planting and cultivation period , the average evapotranspiration (ET) daily was 1.93 ± 0.96 mm.day-1. In the vegetative development period of rice, the daily ET has achieved 4.94 mm.day-1, with average value 2,31± 0.97 mm.day-1. In the period of harvest, evapotranspiration daily average was 1.84 ± 0.80 mm.day-1. From results obtained, the estimation of evapotranspiration from satellite images may assist in monitoring the culture during the cycle, assisting in estimates of water productivity and crop yield.
Palavras-Chave: | Irrigated rice; SAFER.
Thesaurus Nal: | Agrometeorology; Evapotranspiration.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Territorial (CNPM)
Exemplares: | CNPM - (4619-1) - UPC - AP - DD - 15/119 - AP - 2015.119 - DIS