Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil

Detalhes bibliográficos
Autor(a) principal: Lemos Filho, Luis César de Aquino
Data de Publicação: 2010
Outros Autores: Mello, Carlos Rogério de, Faria, Manoel Alves de, Carvalho, Luiz Gonsaga de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/28114
Resumo: Scientific investigations about crop water requirements are of fundamental importance to the irrigation process. The main objective of this paper is to analyze and to map water requirements of coffee crop in Minas Gerais State, Brazil. Potential evapotranspiration values (ET0) were estimated by the Penman-Monteith-FAO method, using daily data sets available for 42 National Meteorology Institute (INMET) stations for a period of 17 years. The crop coefficient values (kc) considered were extracted from literature. The results were analyzed by means of geostatistical tools. The theoretical semi-variograms were fitted by the Maximum Likelihood method, considering spherical, exponential and Gaussian models. The maps were created using the ordinary kriging method. In a general way, the results have showed that the coffee crop evapotranspiration (ETc) presents high variability in Minas Gerais State. The largest variations, both spatial and temporal, have been observed in the northern part of the State. January and June, respectively, presented the highest and the smallest water requirements of coffee crop. Based on this, we can conclude that due to the coffee crop evapotranspiration (ETc) data distinction in different regions of Minas Gerais, a good estimate of the ETc values for each locality will bring many benefits to the coffee growers regarding irrigation scheduling.
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spelling Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, BrazilAnálise espaço-temporal da demanda hídrica do cafeeiro, no Estado de Minas GeraisCafé – EvapotranspiraçãoCafé – IrrigaçãoGeologia – Métodos estatísticosCoffee – EvapotranspirationCoffee – IrrigationGeology – Statistical methodsScientific investigations about crop water requirements are of fundamental importance to the irrigation process. The main objective of this paper is to analyze and to map water requirements of coffee crop in Minas Gerais State, Brazil. Potential evapotranspiration values (ET0) were estimated by the Penman-Monteith-FAO method, using daily data sets available for 42 National Meteorology Institute (INMET) stations for a period of 17 years. The crop coefficient values (kc) considered were extracted from literature. The results were analyzed by means of geostatistical tools. The theoretical semi-variograms were fitted by the Maximum Likelihood method, considering spherical, exponential and Gaussian models. The maps were created using the ordinary kriging method. In a general way, the results have showed that the coffee crop evapotranspiration (ETc) presents high variability in Minas Gerais State. The largest variations, both spatial and temporal, have been observed in the northern part of the State. January and June, respectively, presented the highest and the smallest water requirements of coffee crop. Based on this, we can conclude that due to the coffee crop evapotranspiration (ETc) data distinction in different regions of Minas Gerais, a good estimate of the ETc values for each locality will bring many benefits to the coffee growers regarding irrigation scheduling.O conhecimento de informações que expressam a demanda hídrica das plantas, é fundamental para a irrigação. O objetivo principal desta pesquisa foi analisar a demanda hídrica para o cafeeiro em Minas Gerais. Os valores de ET0, estimados pelo método de Penman-Monteith-FAO a partir de dados diários originados de registros de 42 estações climatológicas do INMET, se referem a um período de 17 anos. Os valores de coeficiente de cultura (kc) adotado no estudo, são os citados por Allen et al. (1998) e Doorenbos & Pruitt (1997). As análises dos resultados são feitas através da geoestatística e os semivariogramas teóricos ajustados pela Máxima Verossimilhança nos modelos esférico, exponencial e gaussiano. Fez-se a interpolação dos mapas pelo processo de krigagem. No geral, os resultados mostraram que a evapotranspiração da cultura no cafeeiro é bastante variável em Minas Gerais. As maiores variações, tanto espaciais quanto temporais, são registradas no norte do estado. Os meses que apresentaram as maiores e menores demandas hídricas no Estado, foram janeiro e junho, respectivamente. Conclui-se, em função da nítida distinção dos dados de ETc geoespacializados em Minas Gerais, que o conhecimento do valor correto da ETc em cada localidade, trará benefícios aos produtores no manejo da irrigação.Universidade Federal de Campina Grande2017-11-17T11:18:21Z2017-11-17T11:18:21Z2010-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLEMOS FILHO, L. C. de A. et al. Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 14, n. 2, p. 165-172, fev. 2010.http://repositorio.ufla.br/jspui/handle/1/28114Revista Brasileira de Engenharia Agrícola e Ambientalreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessLemos Filho, Luis César de AquinoMello, Carlos Rogério deFaria, Manoel Alves deCarvalho, Luiz Gonsaga deeng2023-05-02T17:43:49Zoai:localhost:1/28114Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-02T17:43:49Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
Análise espaço-temporal da demanda hídrica do cafeeiro, no Estado de Minas Gerais
title Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
spellingShingle Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
Lemos Filho, Luis César de Aquino
Café – Evapotranspiração
Café – Irrigação
Geologia – Métodos estatísticos
Coffee – Evapotranspiration
Coffee – Irrigation
Geology – Statistical methods
title_short Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
title_full Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
title_fullStr Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
title_full_unstemmed Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
title_sort Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil
author Lemos Filho, Luis César de Aquino
author_facet Lemos Filho, Luis César de Aquino
Mello, Carlos Rogério de
Faria, Manoel Alves de
Carvalho, Luiz Gonsaga de
author_role author
author2 Mello, Carlos Rogério de
Faria, Manoel Alves de
Carvalho, Luiz Gonsaga de
author2_role author
author
author
dc.contributor.author.fl_str_mv Lemos Filho, Luis César de Aquino
Mello, Carlos Rogério de
Faria, Manoel Alves de
Carvalho, Luiz Gonsaga de
dc.subject.por.fl_str_mv Café – Evapotranspiração
Café – Irrigação
Geologia – Métodos estatísticos
Coffee – Evapotranspiration
Coffee – Irrigation
Geology – Statistical methods
topic Café – Evapotranspiração
Café – Irrigação
Geologia – Métodos estatísticos
Coffee – Evapotranspiration
Coffee – Irrigation
Geology – Statistical methods
description Scientific investigations about crop water requirements are of fundamental importance to the irrigation process. The main objective of this paper is to analyze and to map water requirements of coffee crop in Minas Gerais State, Brazil. Potential evapotranspiration values (ET0) were estimated by the Penman-Monteith-FAO method, using daily data sets available for 42 National Meteorology Institute (INMET) stations for a period of 17 years. The crop coefficient values (kc) considered were extracted from literature. The results were analyzed by means of geostatistical tools. The theoretical semi-variograms were fitted by the Maximum Likelihood method, considering spherical, exponential and Gaussian models. The maps were created using the ordinary kriging method. In a general way, the results have showed that the coffee crop evapotranspiration (ETc) presents high variability in Minas Gerais State. The largest variations, both spatial and temporal, have been observed in the northern part of the State. January and June, respectively, presented the highest and the smallest water requirements of coffee crop. Based on this, we can conclude that due to the coffee crop evapotranspiration (ETc) data distinction in different regions of Minas Gerais, a good estimate of the ETc values for each locality will bring many benefits to the coffee growers regarding irrigation scheduling.
publishDate 2010
dc.date.none.fl_str_mv 2010-02
2017-11-17T11:18:21Z
2017-11-17T11:18:21Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv LEMOS FILHO, L. C. de A. et al. Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 14, n. 2, p. 165-172, fev. 2010.
http://repositorio.ufla.br/jspui/handle/1/28114
identifier_str_mv LEMOS FILHO, L. C. de A. et al. Spatial-temporal analysis of water requirements of coffee crop in Minas Gerais State, Brazil. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 14, n. 2, p. 165-172, fev. 2010.
url http://repositorio.ufla.br/jspui/handle/1/28114
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Campina Grande
publisher.none.fl_str_mv Universidade Federal de Campina Grande
dc.source.none.fl_str_mv Revista Brasileira de Engenharia Agrícola e Ambiental
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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