ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL

Detalhes bibliográficos
Autor(a) principal: CUNHA, GILBERTO ROCCA
Data de Publicação: 1999
Outros Autores: HAAS, JOÃO CARLOS, ASSAD, EDUARDO DELGADO
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Gaúcha (Online)
Texto Completo: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/419
Resumo: The climatic variability is a risk factor to agricultural activities. In Southem Brazil the main climatic risks forwheat production are frost at anthesis and excess rainfall at harvest time. This study of climatic risks zoning integratestechniques of crop modeling and simulation with geoprocessing tools in order to indicate the areas with lower risks for wheatcrop in Rio Grande do Sul, for each sowing period. The analysis of the risk maps shows that there is variability of climatic risksfor wheat growing in the State, according to the region and sowing period. The combination risk of frost at anthesis with riskof excess rainfall at harvest was used to define, for each County, the wheat sowing period of minimum risk, where the risk oflosses, due to the climatic factors studied, remained bellow the high risk range in 80% of the years.
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spelling ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL ZONEAMENTO DE RISCOS CLIMÁTICOS PARA A CULTURA DE TRIGO NO RIO GRANDE DO SUL agricultural zoning, sowing period, frost, rainfall, modeling and simulation, geoprocessing, Triticum aestivum L.zoneamento agrícola, época de semeadura, geada, chuva, modelagem e simulação, geoprocessamento, Triticum aestivum L.The climatic variability is a risk factor to agricultural activities. In Southem Brazil the main climatic risks forwheat production are frost at anthesis and excess rainfall at harvest time. This study of climatic risks zoning integratestechniques of crop modeling and simulation with geoprocessing tools in order to indicate the areas with lower risks for wheatcrop in Rio Grande do Sul, for each sowing period. The analysis of the risk maps shows that there is variability of climatic risksfor wheat growing in the State, according to the region and sowing period. The combination risk of frost at anthesis with riskof excess rainfall at harvest was used to define, for each County, the wheat sowing period of minimum risk, where the risk oflosses, due to the climatic factors studied, remained bellow the high risk range in 80% of the years.A variabilidade climática constitui-se em fator de risco à atividade agrícola. No sul do Brasil destacam-se, comoprincipais riscos climáticos à cultura de trigo, as geadas no período da antese e os excessos de chuva no momento da colheita.Com base nisto, este estudo de zoneamento de riscos climáticos envolveu a integração de técnicas de modelagem e simulaçãode culturas, e ferramentas de geoprocessamento para indicar as áreas com menores chances de riscos à cultura de trigo no RioGrande do Sul, conforme a época de semeadura. Assim, pela análise das cartas de riscos, constatou-se que há variabilidade, emtermos de níveis de riscos climáticos à triticultura gaúcha, dependendo da região do Estado e da época de semeadura. Atravésdo cruzamento das cartas de riscos de geada, na floração, e de excesso de chuva, no momento de colheita, foi possível definir,para cada local do Estado, períodos para a semeadura de trigo em que os níveis de riscos, em 80% dos anos, ficassem abaixo dasituação de alto risco e fossem minimizados.Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural1999-08-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/419Pesquisa Agropecuária Gaúcha; Vol 5 No 1 (1999): PESQ. AGROP. GAÚCHA; 55-62Pesquisa Agropecuária Gaúcha; v. 5 n. 1 (1999): PESQ. AGROP. GAÚCHA; 55-622595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/419/386CUNHA, GILBERTO ROCCAHAAS, JOÃO CARLOS ASSAD, EDUARDO DELGADO info:eu-repo/semantics/openAccess2024-04-22T12:04:34Zoai:ojs.revistapag.agricultura.rs.gov.br:article/419Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2024-04-22T12:04:34Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse
dc.title.none.fl_str_mv ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
ZONEAMENTO DE RISCOS CLIMÁTICOS PARA A CULTURA DE TRIGO NO RIO GRANDE DO SUL
title ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
spellingShingle ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
CUNHA, GILBERTO ROCCA
agricultural zoning, sowing period, frost, rainfall, modeling and simulation, geoprocessing, Triticum aestivum L.
zoneamento agrícola, época de semeadura, geada, chuva, modelagem e simulação, geoprocessamento, Triticum aestivum L.
title_short ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
title_full ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
title_fullStr ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
title_full_unstemmed ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
title_sort ZONING OF CLIMATIC RISKS FOR WHEAT IN RIO GRANDE DO SUL, SOUTHERN BRAZIL
author CUNHA, GILBERTO ROCCA
author_facet CUNHA, GILBERTO ROCCA
HAAS, JOÃO CARLOS
ASSAD, EDUARDO DELGADO
author_role author
author2 HAAS, JOÃO CARLOS
ASSAD, EDUARDO DELGADO
author2_role author
author
dc.contributor.author.fl_str_mv CUNHA, GILBERTO ROCCA
HAAS, JOÃO CARLOS
ASSAD, EDUARDO DELGADO
dc.subject.por.fl_str_mv agricultural zoning, sowing period, frost, rainfall, modeling and simulation, geoprocessing, Triticum aestivum L.
zoneamento agrícola, época de semeadura, geada, chuva, modelagem e simulação, geoprocessamento, Triticum aestivum L.
topic agricultural zoning, sowing period, frost, rainfall, modeling and simulation, geoprocessing, Triticum aestivum L.
zoneamento agrícola, época de semeadura, geada, chuva, modelagem e simulação, geoprocessamento, Triticum aestivum L.
description The climatic variability is a risk factor to agricultural activities. In Southem Brazil the main climatic risks forwheat production are frost at anthesis and excess rainfall at harvest time. This study of climatic risks zoning integratestechniques of crop modeling and simulation with geoprocessing tools in order to indicate the areas with lower risks for wheatcrop in Rio Grande do Sul, for each sowing period. The analysis of the risk maps shows that there is variability of climatic risksfor wheat growing in the State, according to the region and sowing period. The combination risk of frost at anthesis with riskof excess rainfall at harvest was used to define, for each County, the wheat sowing period of minimum risk, where the risk oflosses, due to the climatic factors studied, remained bellow the high risk range in 80% of the years.
publishDate 1999
dc.date.none.fl_str_mv 1999-08-31
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 http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/419
url http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/419
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/419/386
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 Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
publisher.none.fl_str_mv Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
dc.source.none.fl_str_mv Pesquisa Agropecuária Gaúcha; Vol 5 No 1 (1999): PESQ. AGROP. GAÚCHA; 55-62
Pesquisa Agropecuária Gaúcha; v. 5 n. 1 (1999): PESQ. AGROP. GAÚCHA; 55-62
2595-7686
0104-9070
reponame:Pesquisa Agropecuária Gaúcha (Online)
instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron:SEAPDR
instname_str Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron_str SEAPDR
institution SEAPDR
reponame_str Pesquisa Agropecuária Gaúcha (Online)
collection Pesquisa Agropecuária Gaúcha (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
repository.mail.fl_str_mv pag@agricultura.rs.gov.br||
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