Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8021 |
Resumo: | Drying-rewetting events promote changes in chemical and biological processes and soil fertility, as well as reduce or enhance the effects of management practices and soil use on organic matter. The present study analyzed the impacts of the conversion of native forests in agricultural areas on soil carbon and its relation with climatic variations in the semi-arid region of Pernambuco. Soil samples were collected in periods with different climatic conditions during two years of study in layers 0-5, 5-10 and 10-20 cm depth in seven areas with different vegetation cover and land use: Caatinga native forest, Angico forest, Ipe forest, capoeira grass and native Caatinga converted into areas of irrigated maize crop, dry maize crop and elephant grass. Carbon stocks (CST), total organic carbon (TOC), water-soluble carbon (WSC), microbial biomass carbon (MBC), microbial respiration (CO2), microbial quotient (qMic), and metabolic quotient (qCO2) were evaluated. All areas showed variations in soil organic carbon throughout the study. The highest stocks and concentrations of TOC were found in the preserved forest, as well as the best conditions for the development and accumulation of carbon by the microbial biomass. The conversion of caatinga to irrigated maize crop was promising, however, with the absence of management the accumulation of carbon decayed severely. Elephant grass showed higher concentrations of WSC, but it was the system that most emitted CO2 into the atmosphere. The variations found in all the fractions of the carbon accompany the climatic changes, which act regulating their entrances and exits in the soil and the action of the microorganisms in the mineralization of the organic matter. |
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DUDA, Gustavo PereiraMEDEIROS, Érika Valente deMARQUES, Marise ConceiçãoMEDEIROS, Priscila Vanúbia Queiroz deROCHA, Alexandre Tavares daDUDA, Gustavo Pereirahttp://lattes.cnpq.br/4162451928696757LIMA, Francisco Ferreira de2019-05-17T14:04:42Z2017-02-21LIMA, Francisco Ferreira de. Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco. 2017. 71 f. Dissertação (Programa de Pós-Graduação em Produção Agrícola) - Universidade Federal Rural de Pernambuco, Garanhuns.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8021Drying-rewetting events promote changes in chemical and biological processes and soil fertility, as well as reduce or enhance the effects of management practices and soil use on organic matter. The present study analyzed the impacts of the conversion of native forests in agricultural areas on soil carbon and its relation with climatic variations in the semi-arid region of Pernambuco. Soil samples were collected in periods with different climatic conditions during two years of study in layers 0-5, 5-10 and 10-20 cm depth in seven areas with different vegetation cover and land use: Caatinga native forest, Angico forest, Ipe forest, capoeira grass and native Caatinga converted into areas of irrigated maize crop, dry maize crop and elephant grass. Carbon stocks (CST), total organic carbon (TOC), water-soluble carbon (WSC), microbial biomass carbon (MBC), microbial respiration (CO2), microbial quotient (qMic), and metabolic quotient (qCO2) were evaluated. All areas showed variations in soil organic carbon throughout the study. The highest stocks and concentrations of TOC were found in the preserved forest, as well as the best conditions for the development and accumulation of carbon by the microbial biomass. The conversion of caatinga to irrigated maize crop was promising, however, with the absence of management the accumulation of carbon decayed severely. Elephant grass showed higher concentrations of WSC, but it was the system that most emitted CO2 into the atmosphere. The variations found in all the fractions of the carbon accompany the climatic changes, which act regulating their entrances and exits in the soil and the action of the microorganisms in the mineralization of the organic matter.Eventos de seca e umedecimento do solo podem promover modificações nos processos químicos, biológicos e na fertilidade do solo, bem como, reduzir ou potencializar os efeitos de práticas de manejo e uso do solo sobre a matéria orgânica. O presente estudo analisou os impactos da conversão de florestas nativas em áreas agrícolas sobre o carbono do solo e suas relações com as variações climáticas no semiárido pernambucano. Realizou-se a coleta de amostras de solo quatro em períodos com diferentes condições climáticas ao longo de dois anos de estudo nas camadas 0-5, 5-10 e 10-20 cm de profundidade em sete áreas com diferentes coberturas vegetais e usos do solo: Caatinga preservada, mata de angico, mata de ipê, mata com vegetação capoeira e Caatinga nativa convertida em áreas de cultivo de milho irrigado, milho sequeiro e capim elefante. Avaliou-se o carbono orgânico total (COT), estoques de carbono orgânico total (ECOT), carbono solúvel em água (CSA), carbono da biomassa microbiana do solo (CBMS), Respiração microbiana (CO2), quociente microbiano (qMic) e quociente metabólico (qCO2). Todas as áreas apresentaram variações no carbono orgânico do solo ao longo do estudo. Os maiores estoques e concentrações de COT foram encontrados na mata preservada, assim como as melhores condições para o desenvolvimento e acúmulo de carbono pela biomassa microbiana. A conversão de caatinga para cultivo de milho irrigado se mostrou promissora, contudo, com a ausência do manejo o acúmulo de carbono decaiu severamente. O capim elefante demonstrou maiores concentrações de CSA, mas foi o sistema que mais emitiu CO2 para a atmosfera. As variações encontradas em todas as frações do carbono acompanham as mudanças climáticas, que atuam regulando suas entradas e saídas no solo e a ação dos microrganismos na mineralização da matéria orgânica.Submitted by Mario BC (mario@bc.ufrpe.br) on 2019-05-17T14:04:42Z No. of bitstreams: 1 Francisco Ferreira de Lima.pdf: 3132011 bytes, checksum: 7bac762c17c24826127a395d2d0be761 (MD5)Made available in DSpace on 2019-05-17T14:04:42Z (GMT). No. of bitstreams: 1 Francisco Ferreira de Lima.pdf: 3132011 bytes, checksum: 7bac762c17c24826127a395d2d0be761 (MD5) Previous issue date: 2017-02-21Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Produção AgrícolaUFRPEBrasilUnidade Acadêmica de GaranhunsSoloMatéria orgânicaCarbonoVariação climáticaCIENCIAS AGRARIASDinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambucoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis-7236452197330192985600600600600772051418241127941178284247269066639192075167498588264571info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPEORIGINALFrancisco Ferreira de Lima.pdfFrancisco Ferreira de Lima.pdfapplication/pdf3132011http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8021/2/Francisco+Ferreira+de+Lima.pdf7bac762c17c24826127a395d2d0be761MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8021/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede2/80212019-05-17 11:04:42.134oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2019-05-17T14:04:42Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco |
title |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco |
spellingShingle |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco LIMA, Francisco Ferreira de Solo Matéria orgânica Carbono Variação climática CIENCIAS AGRARIAS |
title_short |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco |
title_full |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco |
title_fullStr |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco |
title_full_unstemmed |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco |
title_sort |
Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco |
author |
LIMA, Francisco Ferreira de |
author_facet |
LIMA, Francisco Ferreira de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
DUDA, Gustavo Pereira |
dc.contributor.advisor-co1.fl_str_mv |
MEDEIROS, Érika Valente de |
dc.contributor.advisor-co2.fl_str_mv |
MARQUES, Marise Conceição |
dc.contributor.referee1.fl_str_mv |
MEDEIROS, Priscila Vanúbia Queiroz de |
dc.contributor.referee2.fl_str_mv |
ROCHA, Alexandre Tavares da |
dc.contributor.referee3.fl_str_mv |
DUDA, Gustavo Pereira |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/4162451928696757 |
dc.contributor.author.fl_str_mv |
LIMA, Francisco Ferreira de |
contributor_str_mv |
DUDA, Gustavo Pereira MEDEIROS, Érika Valente de MARQUES, Marise Conceição MEDEIROS, Priscila Vanúbia Queiroz de ROCHA, Alexandre Tavares da DUDA, Gustavo Pereira |
dc.subject.por.fl_str_mv |
Solo Matéria orgânica Carbono Variação climática |
topic |
Solo Matéria orgânica Carbono Variação climática CIENCIAS AGRARIAS |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS |
description |
Drying-rewetting events promote changes in chemical and biological processes and soil fertility, as well as reduce or enhance the effects of management practices and soil use on organic matter. The present study analyzed the impacts of the conversion of native forests in agricultural areas on soil carbon and its relation with climatic variations in the semi-arid region of Pernambuco. Soil samples were collected in periods with different climatic conditions during two years of study in layers 0-5, 5-10 and 10-20 cm depth in seven areas with different vegetation cover and land use: Caatinga native forest, Angico forest, Ipe forest, capoeira grass and native Caatinga converted into areas of irrigated maize crop, dry maize crop and elephant grass. Carbon stocks (CST), total organic carbon (TOC), water-soluble carbon (WSC), microbial biomass carbon (MBC), microbial respiration (CO2), microbial quotient (qMic), and metabolic quotient (qCO2) were evaluated. All areas showed variations in soil organic carbon throughout the study. The highest stocks and concentrations of TOC were found in the preserved forest, as well as the best conditions for the development and accumulation of carbon by the microbial biomass. The conversion of caatinga to irrigated maize crop was promising, however, with the absence of management the accumulation of carbon decayed severely. Elephant grass showed higher concentrations of WSC, but it was the system that most emitted CO2 into the atmosphere. The variations found in all the fractions of the carbon accompany the climatic changes, which act regulating their entrances and exits in the soil and the action of the microorganisms in the mineralization of the organic matter. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-02-21 |
dc.date.accessioned.fl_str_mv |
2019-05-17T14:04:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LIMA, Francisco Ferreira de. Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco. 2017. 71 f. Dissertação (Programa de Pós-Graduação em Produção Agrícola) - Universidade Federal Rural de Pernambuco, Garanhuns. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8021 |
identifier_str_mv |
LIMA, Francisco Ferreira de. Dinâmica sazonal do carbono orgânico em solos com diferentes históricos de uso no semiárido de Pernambuco. 2017. 71 f. Dissertação (Programa de Pós-Graduação em Produção Agrícola) - Universidade Federal Rural de Pernambuco, Garanhuns. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8021 |
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por |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal Rural de Pernambuco |
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Programa de Pós-Graduação em Produção Agrícola |
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UFRPE |
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Brasil |
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Unidade Acadêmica de Garanhuns |
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Universidade Federal Rural de Pernambuco |
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