Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFG |
Texto Completo: | http://repositorio.bc.ufg.br/tede/handle/tede/7132 |
Resumo: | The current situation requires actions to promote development with minimal negative impact on the environment. Agriculture is a sector of the economy that directly interacts with and depends on the natural ecosystem, requiring energy and natural resources. In this respect there is a negative balance for the environment: the intense emission GHG, the soil resource is grately degraded and natural forests are diminished. Investment has to be made in technologies that contribute to stop this process. The recently promoted integrated Crop-Livestock-Forest production systems (iCLFs), in addition to their other desirable socio-economic impacts, are expected to favor the accumulation of soil organic matter and the recovery of degraded areas, a contributing factor to avoid deforestation for opening new areas for agriculture. We present two studies investigating the effect of an iCLF three years after its implementation upon degraded pasture (DP), in southern Goiás State of Brazil, in the savannah ecosystem (Cerrado) that was carried out in colaboration with the Boa Vereda Farm near the city of Cachoeira Dourada, where the iCLF and the reference management systems, conventional pasture (CP) and an recovered pasture (RP) were implemented. In the first study the effect of the implementation of the iCLF, upon DP was investigated on the total organic carbon (TOC) and total nitrogen (TN) accumulation in the soil. For that, besides TOC and N concentrations, soil texture, bulk density (Ds) and δ¹³C were evaluated to validate the comparability of the investigated areas under the different management systems on the stock of TOC and N. The soil samples were collected to 1.0 m depth in eight layers following a transect of five sampling points (repetitions). In the iCLF each sampling point had six soil profiles placed in different positions to represent situations according to the presence or not of trees and transition zones between trees and pasture. In the second study the samples were collected in the previous sampling scheme. The samples were collected down to 0.4m in 5 layers to evaluate the physical quality of the soil: bulk density (Ds), microporosity (Mi), macroporosity (Ma), total porosity (Pt), resistance to penetration (RP). The results of the first study showed that the management used during the implementation of iLPF, which included soil tillage with disc plowing, influenced negatively the stock of C and N in the 0-0.3m layer. Another factor that likely influenced the input of C and N in the soil was the low productivityof the pasture, result of the shading by the eucalyptus trees (Eucalyptus urograndis) on the brachiária grass (Urochloa brizantha). Considering the layer of 0.0 - 1.0 m, the management did not influence the stock of TOC and N in the soil. In the second study the results showed the formation of four groups on the basis of soil physical quality, and within the iLPF there was the formation of two groups that were distinguished by the presence or absence of trees. The presence of the trees in the iCLF created variation of the RP and Pt in relation to the pasture of the iCLF. This may be related to the increase in the volume of roots and more frequent trampling by the animals under the trees causing a reduction in the pore space and consequently greater RP. A complete cycle of the iCLF system usually ends with the cutting and replanting of trees after 5-7 years, depending on the purpose of the production. Therefore, further studies are necessary to evaluate the potential of the iCLF to accumulate TOC and N in the soil and their impact on its physical quality at the end of its cycle and eventually, after several cycles of the system. |
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Madari, Beáta Emökehttp://lattes.cnpq.br/0302689027695014Medeiros, João Carloshttp://lattes.cnpq.br/3509111034386583Oliveira, Janaína de Mourahttp://lattes.cnpq.br/2815916388473689Madari, Beáta Emökehttp://lattes.cnpq.br/0302689027695014Fernandes, Eliana PaulaSilva, Melissa Ananias Soler daCosta, Adriana Rodolfo daCarvalho, Márcia Thais de Melohttp://lattes.cnpq.br/0180354093343502Silveira, André Luiz Rodrigues da2017-04-12T14:30:46Z2016-03-15SILVEIRA, A. L. R. Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado. 2016. 86 f. Tese (Doutorado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2016.http://repositorio.bc.ufg.br/tede/handle/tede/7132ark:/38995/001300000dg23The current situation requires actions to promote development with minimal negative impact on the environment. Agriculture is a sector of the economy that directly interacts with and depends on the natural ecosystem, requiring energy and natural resources. In this respect there is a negative balance for the environment: the intense emission GHG, the soil resource is grately degraded and natural forests are diminished. Investment has to be made in technologies that contribute to stop this process. The recently promoted integrated Crop-Livestock-Forest production systems (iCLFs), in addition to their other desirable socio-economic impacts, are expected to favor the accumulation of soil organic matter and the recovery of degraded areas, a contributing factor to avoid deforestation for opening new areas for agriculture. We present two studies investigating the effect of an iCLF three years after its implementation upon degraded pasture (DP), in southern Goiás State of Brazil, in the savannah ecosystem (Cerrado) that was carried out in colaboration with the Boa Vereda Farm near the city of Cachoeira Dourada, where the iCLF and the reference management systems, conventional pasture (CP) and an recovered pasture (RP) were implemented. In the first study the effect of the implementation of the iCLF, upon DP was investigated on the total organic carbon (TOC) and total nitrogen (TN) accumulation in the soil. For that, besides TOC and N concentrations, soil texture, bulk density (Ds) and δ¹³C were evaluated to validate the comparability of the investigated areas under the different management systems on the stock of TOC and N. The soil samples were collected to 1.0 m depth in eight layers following a transect of five sampling points (repetitions). In the iCLF each sampling point had six soil profiles placed in different positions to represent situations according to the presence or not of trees and transition zones between trees and pasture. In the second study the samples were collected in the previous sampling scheme. The samples were collected down to 0.4m in 5 layers to evaluate the physical quality of the soil: bulk density (Ds), microporosity (Mi), macroporosity (Ma), total porosity (Pt), resistance to penetration (RP). The results of the first study showed that the management used during the implementation of iLPF, which included soil tillage with disc plowing, influenced negatively the stock of C and N in the 0-0.3m layer. Another factor that likely influenced the input of C and N in the soil was the low productivityof the pasture, result of the shading by the eucalyptus trees (Eucalyptus urograndis) on the brachiária grass (Urochloa brizantha). Considering the layer of 0.0 - 1.0 m, the management did not influence the stock of TOC and N in the soil. In the second study the results showed the formation of four groups on the basis of soil physical quality, and within the iLPF there was the formation of two groups that were distinguished by the presence or absence of trees. The presence of the trees in the iCLF created variation of the RP and Pt in relation to the pasture of the iCLF. This may be related to the increase in the volume of roots and more frequent trampling by the animals under the trees causing a reduction in the pore space and consequently greater RP. A complete cycle of the iCLF system usually ends with the cutting and replanting of trees after 5-7 years, depending on the purpose of the production. Therefore, further studies are necessary to evaluate the potential of the iCLF to accumulate TOC and N in the soil and their impact on its physical quality at the end of its cycle and eventually, after several cycles of the system.A conjuntura ambiental atual requer ações no sentido de promover o desenvolvimento com o menor impacto negativo possível ao meio ambiente. A agricultura é o setor da economia que mais interage e depende do ecossistema, demandando energia e recursos naturais. Nesta relação há um balanço negativo para o meio ambiente: a emissão de gases de efeito estufa (GEE) intensa, o recurso solo é degradado e as florestas naturais são ceifadas. É preciso investir em tecnologias que envolvam ações para estancar este processo. Do sistema de integração Lavoura-Pecuária-Floresta (iLPF) espera-se, além dos seus outros impactos sócioeconômicos desejáveis, que favoreça a acumulação da matéria orgânica do solo e a recuperação de áreas degradadas, contribuindo para evitar o desmatamento para abertura de novas áreas para a agropecuária. Neste trabalho apresentam-se dois estudos, envolvendo iLPF três anos após a sua implantação em pastagem degradada, no Cerrado goiano na fazenda Boa Vereda no município de Cachoeira Dourada. O primeiro estudo trata do acúmulo de carbono (C) e nitrogênio (N) e sua origem em comparação com duas formas de manejo, a pastagem convencional (PC) e a pastagem recuperada (PR). As amostras foram coletadas em perfis de solo de 1,0 m de profundidade em oito camadas (0-1,0m) em um transecto com cinco repetições em cada área. Foram avaliadas textura, densidade do solo (Ds) e δ¹³C para validar a comparabilidade das áreas quanto ao estoque de C e N totais. No segundo estudo foram coletadas, no mesmo esquema amostral anterior, quatro amostras por perfil até 0,5m para os seguintes atributos: densidade do solo (Ds), microporosidade (Mi), macroporosidade (Ma), porosidade total (PT), resistência a penetração (RP) e matéria orgânica do solo (MOS). Os resultados do primeiro estudo demonstraram que o manejo empregado na implantação do iLPF, que incluiu o revolvimento do solo com aração, influenciou negativamente no estoque de C e N na camada de 0-0,3m. Outro fator que influenciou a entrada de C e N para o solo foi a baixa produtividade da pastagem, consequência do sombreamento das árvores de eucalipto (Eucalyptus) sobre o braquiária (Brachiaria brizantha). Considerando a camada de 0,0 – 1,0m o manejo não influenciou o estoque de C e N no solo. No segundo estudo o dendograma resultante da análise de agrupamento indicou a formação de quatro grupo sem base da qualidade física do solo, sendo que no iLPF houve a formação de dois grupos que se distinguiram pela presença ou não de árvores. Os valores dos atributos físicos estudados no iLPF indicaram uma contribuição das árvores para a variação da RP e Pt em relação a pastagem do iLPF. Este fato pode estar ligado ao aumento no volume de raízes e ao mais frequente pisoteio dos animais nesta região do iLPF causando uma diminuição do espaço poroso e uma maior resistência a penetração. Um ciclo completo de um sistema iLPF geralmente termina com o desbaste e replantio das árvores após 5 a 7 anos, dependendo da finalidade da produção. Portanto, evidenciou-se a necessidade de no futuro complementar os presentes estudos com a avaliação da capacidade do iLPF para acumular C e N no solo e seu impacto na qualidade física do solo ao final do seu ciclo e, eventualmente, após vários ciclos do sistema.Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-04-11T17:19:18Z No. of bitstreams: 2 Tese - André Luiz Rodrigues da Silveira - 2016.pdf: 3054217 bytes, checksum: 3ba9cdaa2990e6ffc42885570c8796db (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2017-04-12T14:30:46Z (GMT) No. of bitstreams: 2 Tese - André Luiz Rodrigues da Silveira - 2016.pdf: 3054217 bytes, checksum: 3ba9cdaa2990e6ffc42885570c8796db (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2017-04-12T14:30:46Z (GMT). No. of bitstreams: 2 Tese - André Luiz Rodrigues da Silveira - 2016.pdf: 3054217 bytes, checksum: 3ba9cdaa2990e6ffc42885570c8796db (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2016-03-15Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfporUniversidade Federal de GoiásPrograma de Pós-graduação em Agronomia (EAEA)UFGBrasilEscola de Agronomia e Engenharia de Alimentos - EAEA (RG)http://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessSistemaPastagemCarbonoNitrogênioQualidade física do soloSystemPastureCarbonNitrogenSoil physical qualityCIENCIAS AGRARIAS::AGRONOMIAImpacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de CerradoImpact of an integrated crop-livestock-forest system on a ferralsol of the Brazilian savannah (Cerrado)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis8421195611339883816006006006004500684695727928426-30911387149076039072075167498588264571reponame:Repositório Institucional da UFGinstname:Universidade Federal de Goiás (UFG)instacron:UFGLICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado |
dc.title.alternative.eng.fl_str_mv |
Impact of an integrated crop-livestock-forest system on a ferralsol of the Brazilian savannah (Cerrado) |
title |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado |
spellingShingle |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado Silveira, André Luiz Rodrigues da Sistema Pastagem Carbono Nitrogênio Qualidade física do solo System Pasture Carbon Nitrogen Soil physical quality CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado |
title_full |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado |
title_fullStr |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado |
title_full_unstemmed |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado |
title_sort |
Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado |
author |
Silveira, André Luiz Rodrigues da |
author_facet |
Silveira, André Luiz Rodrigues da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Madari, Beáta Emöke |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/0302689027695014 |
dc.contributor.advisor-co1.fl_str_mv |
Medeiros, João Carlos |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/3509111034386583 |
dc.contributor.advisor-co2.fl_str_mv |
Oliveira, Janaína de Moura |
dc.contributor.advisor-co2Lattes.fl_str_mv |
http://lattes.cnpq.br/2815916388473689 |
dc.contributor.referee1.fl_str_mv |
Madari, Beáta Emöke |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/0302689027695014 |
dc.contributor.referee2.fl_str_mv |
Fernandes, Eliana Paula |
dc.contributor.referee3.fl_str_mv |
Silva, Melissa Ananias Soler da |
dc.contributor.referee4.fl_str_mv |
Costa, Adriana Rodolfo da |
dc.contributor.referee5.fl_str_mv |
Carvalho, Márcia Thais de Melo |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0180354093343502 |
dc.contributor.author.fl_str_mv |
Silveira, André Luiz Rodrigues da |
contributor_str_mv |
Madari, Beáta Emöke Medeiros, João Carlos Oliveira, Janaína de Moura Madari, Beáta Emöke Fernandes, Eliana Paula Silva, Melissa Ananias Soler da Costa, Adriana Rodolfo da Carvalho, Márcia Thais de Melo |
dc.subject.por.fl_str_mv |
Sistema Pastagem Carbono Nitrogênio Qualidade física do solo |
topic |
Sistema Pastagem Carbono Nitrogênio Qualidade física do solo System Pasture Carbon Nitrogen Soil physical quality CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.eng.fl_str_mv |
System Pasture Carbon Nitrogen Soil physical quality |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::AGRONOMIA |
description |
The current situation requires actions to promote development with minimal negative impact on the environment. Agriculture is a sector of the economy that directly interacts with and depends on the natural ecosystem, requiring energy and natural resources. In this respect there is a negative balance for the environment: the intense emission GHG, the soil resource is grately degraded and natural forests are diminished. Investment has to be made in technologies that contribute to stop this process. The recently promoted integrated Crop-Livestock-Forest production systems (iCLFs), in addition to their other desirable socio-economic impacts, are expected to favor the accumulation of soil organic matter and the recovery of degraded areas, a contributing factor to avoid deforestation for opening new areas for agriculture. We present two studies investigating the effect of an iCLF three years after its implementation upon degraded pasture (DP), in southern Goiás State of Brazil, in the savannah ecosystem (Cerrado) that was carried out in colaboration with the Boa Vereda Farm near the city of Cachoeira Dourada, where the iCLF and the reference management systems, conventional pasture (CP) and an recovered pasture (RP) were implemented. In the first study the effect of the implementation of the iCLF, upon DP was investigated on the total organic carbon (TOC) and total nitrogen (TN) accumulation in the soil. For that, besides TOC and N concentrations, soil texture, bulk density (Ds) and δ¹³C were evaluated to validate the comparability of the investigated areas under the different management systems on the stock of TOC and N. The soil samples were collected to 1.0 m depth in eight layers following a transect of five sampling points (repetitions). In the iCLF each sampling point had six soil profiles placed in different positions to represent situations according to the presence or not of trees and transition zones between trees and pasture. In the second study the samples were collected in the previous sampling scheme. The samples were collected down to 0.4m in 5 layers to evaluate the physical quality of the soil: bulk density (Ds), microporosity (Mi), macroporosity (Ma), total porosity (Pt), resistance to penetration (RP). The results of the first study showed that the management used during the implementation of iLPF, which included soil tillage with disc plowing, influenced negatively the stock of C and N in the 0-0.3m layer. Another factor that likely influenced the input of C and N in the soil was the low productivityof the pasture, result of the shading by the eucalyptus trees (Eucalyptus urograndis) on the brachiária grass (Urochloa brizantha). Considering the layer of 0.0 - 1.0 m, the management did not influence the stock of TOC and N in the soil. In the second study the results showed the formation of four groups on the basis of soil physical quality, and within the iLPF there was the formation of two groups that were distinguished by the presence or absence of trees. The presence of the trees in the iCLF created variation of the RP and Pt in relation to the pasture of the iCLF. This may be related to the increase in the volume of roots and more frequent trampling by the animals under the trees causing a reduction in the pore space and consequently greater RP. A complete cycle of the iCLF system usually ends with the cutting and replanting of trees after 5-7 years, depending on the purpose of the production. Therefore, further studies are necessary to evaluate the potential of the iCLF to accumulate TOC and N in the soil and their impact on its physical quality at the end of its cycle and eventually, after several cycles of the system. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-03-15 |
dc.date.accessioned.fl_str_mv |
2017-04-12T14:30:46Z |
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.citation.fl_str_mv |
SILVEIRA, A. L. R. Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado. 2016. 86 f. Tese (Doutorado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2016. |
dc.identifier.uri.fl_str_mv |
http://repositorio.bc.ufg.br/tede/handle/tede/7132 |
dc.identifier.dark.fl_str_mv |
ark:/38995/001300000dg23 |
identifier_str_mv |
SILVEIRA, A. L. R. Impacto da implantação do sistema integração lavoura–pecuária–floresta em latossolo de Cerrado. 2016. 86 f. Tese (Doutorado em Agronomia) - Universidade Federal de Goiás, Goiânia, 2016. ark:/38995/001300000dg23 |
url |
http://repositorio.bc.ufg.br/tede/handle/tede/7132 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
842119561133988381 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 |
dc.relation.department.fl_str_mv |
4500684695727928426 |
dc.relation.cnpq.fl_str_mv |
-3091138714907603907 |
dc.relation.sponsorship.fl_str_mv |
2075167498588264571 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.publisher.program.fl_str_mv |
Programa de Pós-graduação em Agronomia (EAEA) |
dc.publisher.initials.fl_str_mv |
UFG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Escola de Agronomia e Engenharia de Alimentos - EAEA (RG) |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFG instname:Universidade Federal de Goiás (UFG) instacron:UFG |
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Universidade Federal de Goiás (UFG) |
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UFG |
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UFG |
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Repositório Institucional da UFG |
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Repositório Institucional da UFG |
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tasesdissertacoes.bc@ufg.br |
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