YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD

Detalhes bibliográficos
Autor(a) principal: Almeida, Thomé Simpliciano
Data de Publicação: 2017
Outros Autores: Sediyama, Gilberto Chohaku, de Alencar, Leônidas Pena
Tipo de documento: Artigo
Idioma: por
Título da fonte: Engenharia na Agricultura
Texto Completo: https://periodicos.ufv.br/reveng/article/view/654
Resumo: The notorious role of coffee in Brazilian economy justifies and motivates the realization of scientific researches that contribute to the improvement of the culture monitoring, refine the productivity estimation and offer political support for planning and commercialization. In this context, the present thesis aimed the monitoring and the productivity estimation of coffee plantations – located in the northwest of Minas Gerais – by means of an agrometeorological-spectral model. The spectral monitoring was done through the behavior of the EVI and NDVI vegetation indexes, fed by spectral data from MODIS sensor with the MOD13Q1 product. The original mathematical agrometeorologycal model is based on the penalization of cultivation potential productivity due to the hydric deficit between the culture potential evapotranspiration (ETc) and the real evapotranspiration (ET), adjusted by different sensibility culture coefficients (ky) for different fenological states. A value of r² was obtained by adjustment of the model parameters for the plantations and resulted between 0,79 and 0,95 and also a concordance index “d” Willmott between 0,93 and 0,95 for different pivots. The satisfactory results confirm the potential of the agrometeorological-spectral model application for estimation of productivity of plantations.
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spelling YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHODESTIMATIVA DA PRODUTIVIDADE DE CAFEEIROS IRRIGADOS PELO MÉTODO ZONA AGROECOLÓGICA ESPECTRALbalanço hídricomodelo agrometeorológicosensoriamento remotoThe notorious role of coffee in Brazilian economy justifies and motivates the realization of scientific researches that contribute to the improvement of the culture monitoring, refine the productivity estimation and offer political support for planning and commercialization. In this context, the present thesis aimed the monitoring and the productivity estimation of coffee plantations – located in the northwest of Minas Gerais – by means of an agrometeorological-spectral model. The spectral monitoring was done through the behavior of the EVI and NDVI vegetation indexes, fed by spectral data from MODIS sensor with the MOD13Q1 product. The original mathematical agrometeorologycal model is based on the penalization of cultivation potential productivity due to the hydric deficit between the culture potential evapotranspiration (ETc) and the real evapotranspiration (ET), adjusted by different sensibility culture coefficients (ky) for different fenological states. A value of r² was obtained by adjustment of the model parameters for the plantations and resulted between 0,79 and 0,95 and also a concordance index “d” Willmott between 0,93 and 0,95 for different pivots. The satisfactory results confirm the potential of the agrometeorological-spectral model application for estimation of productivity of plantations.A posição de destaque do café na economia brasileira torna importante a realização de pesquisas científicas que contribuam para o monitoramento da cultura e estimativa da produtividade, fornecendo subsídios para políticas de planejamento e comercialização agrícola. Neste sentido, o presente trabalho teve como objetivo realizar a estimativa da produtividade de uma fazenda cafeeira na região Noroeste do Estado de Minas Gerais a partir de modelagem agrometeorológica e dados espectrais do sensor MODIS. O modelo utilizado tem como base a penalização da produtividade potencial da cultura em função do déficit hídrico (ET/ETc) e da produtividade do ano anterior (Yaa/Yp), ajustados por diferentes coeficientes de sensibilidade da cultura (ky), em diferentes estádios fenológicos. Com a parametrização do modelo, obteve-se um valor de r2 variando entre 0,79 a 0,95, e um índice de concordância “d” de Willmott de 0,93 a 0,95, entre a produtividade real e a estimada. Os resultados satisfatórios comprovaram o potencial da aplicação do modelo agrometeorológico-espectral para obtenção da estimativa da produtividade a nível de fazendas.Universidade Federal de Viçosa - UFV2017-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/reveng/article/view/65410.13083/reveng.v25i1.727Engineering in Agriculture; Vol. 25 No. 1 (2017); 1-11Revista Engenharia na Agricultura - REVENG; v. 25 n. 1 (2017); 1-112175-68131414-398410.13083/reveng.v25i1reponame:Engenharia na Agriculturainstname:Universidade Federal de Viçosa (UFV)instacron:UFVporhttps://periodicos.ufv.br/reveng/article/view/654/432Almeida, Thomé SimplicianoSediyama, Gilberto Chohakude Alencar, Leônidas Penainfo:eu-repo/semantics/openAccess2023-01-19T13:32:22Zoai:ojs.periodicos.ufv.br:article/654Revistahttps://periodicos.ufv.br/revengPUBhttps://periodicos.ufv.br/reveng/oairevistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br2175-68131414-3984opendoar:2023-01-19T13:32:22Engenharia na Agricultura - Universidade Federal de Viçosa (UFV)false
dc.title.none.fl_str_mv YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
ESTIMATIVA DA PRODUTIVIDADE DE CAFEEIROS IRRIGADOS PELO MÉTODO ZONA AGROECOLÓGICA ESPECTRAL
title YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
spellingShingle YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
Almeida, Thomé Simpliciano
balanço hídrico
modelo agrometeorológico
sensoriamento remoto
title_short YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
title_full YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
title_fullStr YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
title_full_unstemmed YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
title_sort YIELD ESTIMATE OF IRRIGATED COFFEE BY SPECTRAL AGRO ECOLOGICAL ZONE METHOD
author Almeida, Thomé Simpliciano
author_facet Almeida, Thomé Simpliciano
Sediyama, Gilberto Chohaku
de Alencar, Leônidas Pena
author_role author
author2 Sediyama, Gilberto Chohaku
de Alencar, Leônidas Pena
author2_role author
author
dc.contributor.author.fl_str_mv Almeida, Thomé Simpliciano
Sediyama, Gilberto Chohaku
de Alencar, Leônidas Pena
dc.subject.por.fl_str_mv balanço hídrico
modelo agrometeorológico
sensoriamento remoto
topic balanço hídrico
modelo agrometeorológico
sensoriamento remoto
description The notorious role of coffee in Brazilian economy justifies and motivates the realization of scientific researches that contribute to the improvement of the culture monitoring, refine the productivity estimation and offer political support for planning and commercialization. In this context, the present thesis aimed the monitoring and the productivity estimation of coffee plantations – located in the northwest of Minas Gerais – by means of an agrometeorological-spectral model. The spectral monitoring was done through the behavior of the EVI and NDVI vegetation indexes, fed by spectral data from MODIS sensor with the MOD13Q1 product. The original mathematical agrometeorologycal model is based on the penalization of cultivation potential productivity due to the hydric deficit between the culture potential evapotranspiration (ETc) and the real evapotranspiration (ET), adjusted by different sensibility culture coefficients (ky) for different fenological states. A value of r² was obtained by adjustment of the model parameters for the plantations and resulted between 0,79 and 0,95 and also a concordance index “d” Willmott between 0,93 and 0,95 for different pivots. The satisfactory results confirm the potential of the agrometeorological-spectral model application for estimation of productivity of plantations.
publishDate 2017
dc.date.none.fl_str_mv 2017-03-31
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.ufv.br/reveng/article/view/654
10.13083/reveng.v25i1.727
url https://periodicos.ufv.br/reveng/article/view/654
identifier_str_mv 10.13083/reveng.v25i1.727
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.ufv.br/reveng/article/view/654/432
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
publisher.none.fl_str_mv Universidade Federal de Viçosa - UFV
dc.source.none.fl_str_mv Engineering in Agriculture; Vol. 25 No. 1 (2017); 1-11
Revista Engenharia na Agricultura - REVENG; v. 25 n. 1 (2017); 1-11
2175-6813
1414-3984
10.13083/reveng.v25i1
reponame:Engenharia na Agricultura
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Engenharia na Agricultura
collection Engenharia na Agricultura
repository.name.fl_str_mv Engenharia na Agricultura - Universidade Federal de Viçosa (UFV)
repository.mail.fl_str_mv revistaengenharianagricultura@gmail.com||andrerosa@ufv.br||tramitacao.reveng@gmail.com|| reveng@ufv.br
_version_ 1800211146064527360

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