Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
dARK ID: | ark:/26339/001300000ffjt |
Texto Completo: | http://repositorio.ufsm.br/handle/1/3329 |
Resumo: | Human activity has been pointed out as the main reason of global warming by effluxes of CO2, N2O and CH4. In the last years, harmful effects of greenhouse gases due to its increase in atmosphere have been arousing interests of scientists into propose mechanisms of mitigation. Flooding rice is responsible for about 12% of CH4 released to atmosphere and therefore, is considerate one of the most important source of this greenhouse gas. There are many factors that control CH4 efflux in irrigated rice fields, which difficult an accurate identification of the responsible mechanisms. However, is known that irrigation regime and selection of rice cultivars affect CH4 efflux and may be managed intending to mitigate it. The objectives of this thesis were: (a) verify the effect of continuous irrigation, intermittent irrigation and intermittent flooding into CH4 efflux of a hapludalf soil cultivated with flooding rice at central region of Rio Grande do Sul State; (b) evaluate CH4 efflux of rice cultivated in greenhouse under different irrigation managements and relate the efflux to agronomic parameters of rice plants; (c) evaluate the irrigation systems over the rice crop and how it affect the electrochemical of soil solution and plant development; (d) evaluate CH4 efflux through cultivars of rice from Rio Grande do Sul and Santa Catarina States and relate it to plant morphological attributes. Intermittent irrigation was efficient to mitigate CH4 efflux in rice cultivations, when the lack of rain did not establish water layers, without having decrease in rice productivity. intermittent flooding management by irrigations, even at saturated soil, decreased the CH4 efflux by 70%. The management of intermittent flooding by irrigations when soil was bellow the field capacity do not cause CH4 efflux, however, this management caused decrease of rice productivity. Irrigation management does affect electrochemical conditions of soil, which are determinant to the CH4 production in soils. The dynamic of efflux of CH4 is similar between cultivars; however, there are differences on potential of CH4 efflux from cultivars of flooding rice. The cultivars Arize 1003, Avaxi Cl, BRS Atalanta, BRS Querência, BRS Taim, Inov Cl, Irga 422 and Irga 424 have showed lower efflux and higher productivities. Morphological characteristics of plants have not explained completely the differences of CH4 effluxes between cultivars. |
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Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigadoCultivars and soil irrigation management into methane efflux of irrigated rive fieldsEfeito estufaArroz irrigadoManejo do arrozIrrigação intermitenteMorfologia do arrozGreenhouse effectLowland riceRice managementIrrigation intermittentMorphology of riceCNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLOHuman activity has been pointed out as the main reason of global warming by effluxes of CO2, N2O and CH4. In the last years, harmful effects of greenhouse gases due to its increase in atmosphere have been arousing interests of scientists into propose mechanisms of mitigation. Flooding rice is responsible for about 12% of CH4 released to atmosphere and therefore, is considerate one of the most important source of this greenhouse gas. There are many factors that control CH4 efflux in irrigated rice fields, which difficult an accurate identification of the responsible mechanisms. However, is known that irrigation regime and selection of rice cultivars affect CH4 efflux and may be managed intending to mitigate it. The objectives of this thesis were: (a) verify the effect of continuous irrigation, intermittent irrigation and intermittent flooding into CH4 efflux of a hapludalf soil cultivated with flooding rice at central region of Rio Grande do Sul State; (b) evaluate CH4 efflux of rice cultivated in greenhouse under different irrigation managements and relate the efflux to agronomic parameters of rice plants; (c) evaluate the irrigation systems over the rice crop and how it affect the electrochemical of soil solution and plant development; (d) evaluate CH4 efflux through cultivars of rice from Rio Grande do Sul and Santa Catarina States and relate it to plant morphological attributes. Intermittent irrigation was efficient to mitigate CH4 efflux in rice cultivations, when the lack of rain did not establish water layers, without having decrease in rice productivity. intermittent flooding management by irrigations, even at saturated soil, decreased the CH4 efflux by 70%. The management of intermittent flooding by irrigations when soil was bellow the field capacity do not cause CH4 efflux, however, this management caused decrease of rice productivity. Irrigation management does affect electrochemical conditions of soil, which are determinant to the CH4 production in soils. The dynamic of efflux of CH4 is similar between cultivars; however, there are differences on potential of CH4 efflux from cultivars of flooding rice. The cultivars Arize 1003, Avaxi Cl, BRS Atalanta, BRS Querência, BRS Taim, Inov Cl, Irga 422 and Irga 424 have showed lower efflux and higher productivities. Morphological characteristics of plants have not explained completely the differences of CH4 effluxes between cultivars.Conselho Nacional de Desenvolvimento Científico e TecnológicoA atividade antrópica tem sido apontada como a principal causa do aquecimento global pelo efluxo de CO2, N2O e CH4. Nos últimos anos, os efeitos prejudiciais do aumento da concentração atmosférica desses gases têm despertado os cientistas a propor mecanismos de mitigação. A cultura do arroz irrigado por alagamento é responsável por cerca de 12% do efluxo total de CH4 para a atmosfera, sendo considerada uma das principais fontes emissoras desse gás de efeito estufa. Os fatores que controlam o efluxo de CH4 no arroz irrigado são muitos, dificultando identificar com precisão os mecanismos responsáveis pelo seu efluxo. O regime de irrigação e a seleção de cultivares de arroz são fatores que afetam o efluxo de CH4 e podem ser modificados visando mitigar os efluxos para a atmosfera. Os objetivos da tese foram: (a) verificar o efeito do regime de irrigação contínua, intermitente e a banhos no efluxo de CH4 em um Planossolo cultivado com arroz irrigado por alagamento na Depressão Central do Rio Grande do Sul; (b) avaliar o efluxo de CH4 no arroz cultivado em casa de vegetação submetido a diferentes manejos de irrigação e relacionar o efluxo com parâmetros agronômicos da planta de arroz; (c) avaliar os sistemas de manejo de irrigação na cultura do arroz e os efeitos nos atributos eletroquímicos da solução do solo e no desenvolvimento das plantas; (d) avaliar o efluxo de CH4 em cultivares de arroz do RS e SC e relacionar com atributos morfofisiológicos das cultivares; e (e) caracterizar morfologicamente a cultura do arroz e verificar a provável rota de difusão do CH4 do solo até a atmosfera. A prática da irrigação intermitente foi eficiente em mitigar o efluxo de CH4 no cultivo do arroz irrigado quando as condições climáticas permitiram a ausência da lâmina de água durante o cultivo, sem diminuir a produtividade do arroz. O manejo da irrigação intermitente com o realagamento do solo ainda saturado diminuiu a emissão de CH4 em 70%. O manejo intermitente da irrigação com o realagamento do solo abaixo da capacidade de campo não causa efluxo de CH4, porém os efeitos foram negativos sobre a produtividade do arroz. O manejo da irrigação afeta as condições eletroquímicas do solo e são determinantes para a produção de CH4 nos solos. A dinâmica de efluxo de CH4 é semelhante entre as cultivares, porém, existem diferenças no potencial de efluxo de CH4 em cultivares de arroz irrigado por alagamento. As cultivares Arize 1003, Avaxi Cl, BRS Atalanta, BRS Querência, BRS Taim, Inov Cl, Irga 422 e Irga 424 apresentaram menor efluxo de CH4 com a maior produtividade do arroz. As características morfofisiológicas das plantas não explicaram completamente as diferenças de efluxos de CH4 entre as cultivares.Universidade Federal de Santa MariaBRAgronomiaUFSMPrograma de Pós-Graduação em Ciência do SoloSilva, Leandro Souza dahttp://lattes.cnpq.br/2152888530643357Bayer, Ciméliohttp://lattes.cnpq.br/5954461350700731Marchezan, Eniohttp://lattes.cnpq.br/2740617028203037Moterle, Diovane Freire2017-03-222017-03-222011-12-19info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfapplication/pdfMOTERLE, Diovane Freire. Cultivars and soil irrigation management into methane efflux of irrigated rive fields. 2011. 148 f. Tese (Doutorado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2011.http://repositorio.ufsm.br/handle/1/3329ark:/26339/001300000ffjtporinfo:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM2023-06-15T15:39:50Zoai:repositorio.ufsm.br:1/3329Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2023-06-15T15:39:50Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.none.fl_str_mv |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado Cultivars and soil irrigation management into methane efflux of irrigated rive fields |
title |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado |
spellingShingle |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado Moterle, Diovane Freire Efeito estufa Arroz irrigado Manejo do arroz Irrigação intermitente Morfologia do arroz Greenhouse effect Lowland rice Rice management Irrigation intermittent Morphology of rice CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
title_short |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado |
title_full |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado |
title_fullStr |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado |
title_full_unstemmed |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado |
title_sort |
Efluxo de metano em solo sob manejos de irrigação e cultivares de arroz irrrigado |
author |
Moterle, Diovane Freire |
author_facet |
Moterle, Diovane Freire |
author_role |
author |
dc.contributor.none.fl_str_mv |
Silva, Leandro Souza da http://lattes.cnpq.br/2152888530643357 Bayer, Cimélio http://lattes.cnpq.br/5954461350700731 Marchezan, Enio http://lattes.cnpq.br/2740617028203037 |
dc.contributor.author.fl_str_mv |
Moterle, Diovane Freire |
dc.subject.por.fl_str_mv |
Efeito estufa Arroz irrigado Manejo do arroz Irrigação intermitente Morfologia do arroz Greenhouse effect Lowland rice Rice management Irrigation intermittent Morphology of rice CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
topic |
Efeito estufa Arroz irrigado Manejo do arroz Irrigação intermitente Morfologia do arroz Greenhouse effect Lowland rice Rice management Irrigation intermittent Morphology of rice CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
description |
Human activity has been pointed out as the main reason of global warming by effluxes of CO2, N2O and CH4. In the last years, harmful effects of greenhouse gases due to its increase in atmosphere have been arousing interests of scientists into propose mechanisms of mitigation. Flooding rice is responsible for about 12% of CH4 released to atmosphere and therefore, is considerate one of the most important source of this greenhouse gas. There are many factors that control CH4 efflux in irrigated rice fields, which difficult an accurate identification of the responsible mechanisms. However, is known that irrigation regime and selection of rice cultivars affect CH4 efflux and may be managed intending to mitigate it. The objectives of this thesis were: (a) verify the effect of continuous irrigation, intermittent irrigation and intermittent flooding into CH4 efflux of a hapludalf soil cultivated with flooding rice at central region of Rio Grande do Sul State; (b) evaluate CH4 efflux of rice cultivated in greenhouse under different irrigation managements and relate the efflux to agronomic parameters of rice plants; (c) evaluate the irrigation systems over the rice crop and how it affect the electrochemical of soil solution and plant development; (d) evaluate CH4 efflux through cultivars of rice from Rio Grande do Sul and Santa Catarina States and relate it to plant morphological attributes. Intermittent irrigation was efficient to mitigate CH4 efflux in rice cultivations, when the lack of rain did not establish water layers, without having decrease in rice productivity. intermittent flooding management by irrigations, even at saturated soil, decreased the CH4 efflux by 70%. The management of intermittent flooding by irrigations when soil was bellow the field capacity do not cause CH4 efflux, however, this management caused decrease of rice productivity. Irrigation management does affect electrochemical conditions of soil, which are determinant to the CH4 production in soils. The dynamic of efflux of CH4 is similar between cultivars; however, there are differences on potential of CH4 efflux from cultivars of flooding rice. The cultivars Arize 1003, Avaxi Cl, BRS Atalanta, BRS Querência, BRS Taim, Inov Cl, Irga 422 and Irga 424 have showed lower efflux and higher productivities. Morphological characteristics of plants have not explained completely the differences of CH4 effluxes between cultivars. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-12-19 2017-03-22 2017-03-22 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
MOTERLE, Diovane Freire. Cultivars and soil irrigation management into methane efflux of irrigated rive fields. 2011. 148 f. Tese (Doutorado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2011. http://repositorio.ufsm.br/handle/1/3329 |
dc.identifier.dark.fl_str_mv |
ark:/26339/001300000ffjt |
identifier_str_mv |
MOTERLE, Diovane Freire. Cultivars and soil irrigation management into methane efflux of irrigated rive fields. 2011. 148 f. Tese (Doutorado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2011. ark:/26339/001300000ffjt |
url |
http://repositorio.ufsm.br/handle/1/3329 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Agronomia UFSM Programa de Pós-Graduação em Ciência do Solo |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria BR Agronomia UFSM Programa de Pós-Graduação em Ciência do Solo |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Manancial - Repositório Digital da UFSM |
collection |
Manancial - Repositório Digital da UFSM |
repository.name.fl_str_mv |
Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
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1815172333355139072 |