Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/214136 |
Resumo: | Changes in soil attributes are caused by the conversion of native forest systems to agricultural use systems in the Amazon, and attribute assessments help in monitoring the conservation of tropical soils. The objective of this work was to evaluate the land use systems and the consequent changes caused by the management on the chemical, physical and biological attributes of the soil in comparison with these attributes under natural soil conditions in the municipality of Marabá, in the southeast of the state of Pará. The systems evaluated were native forest, agroforestry system, fruit culture and crop-livestock interaction. For the evaluation of soil attributes, 12 composite soil samples were collected in each system, totaling 48 samples. The evaluation of the obtained data was carried out through multivariate analysis and exploratory data analysis through the mean values and the coefficient of variation. The conversion of native forest into land use systems negatively impacted the chemical, physical and biological attributes of the soil. The multivariate analysis techniques separated the native forest and agroforestry systems from the fruit-growing and crop-livestock interaction systems according to the chemical, physical and biological attributes of the analyzed soil. The fruit growing systems and crop-livestock interaction promoted lower results for pH, nitrogen, phosphorus, potassium, calcium, magnesium, organic carbon and macroporosity, in addition to higher aluminum content and higher soil density in relation to native forest. All evaluated land use systems showed a decrease in microbial biomass carbon, basal respiration and microbial quotient, and the crop-livestock interaction system showed an increase in the metabolic quotient in relation to forest. The land use system most similar to native forest was the agroforestry system. |
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Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do ParáChemical, physical and biological attributes of soil in land use systems in Marabá, in southeastern ParáConservação do soloDegradação do soloUso da terraSistemas amazônicosQualidade do soloEstrutura do soloChanges in soil attributes are caused by the conversion of native forest systems to agricultural use systems in the Amazon, and attribute assessments help in monitoring the conservation of tropical soils. The objective of this work was to evaluate the land use systems and the consequent changes caused by the management on the chemical, physical and biological attributes of the soil in comparison with these attributes under natural soil conditions in the municipality of Marabá, in the southeast of the state of Pará. The systems evaluated were native forest, agroforestry system, fruit culture and crop-livestock interaction. For the evaluation of soil attributes, 12 composite soil samples were collected in each system, totaling 48 samples. The evaluation of the obtained data was carried out through multivariate analysis and exploratory data analysis through the mean values and the coefficient of variation. The conversion of native forest into land use systems negatively impacted the chemical, physical and biological attributes of the soil. The multivariate analysis techniques separated the native forest and agroforestry systems from the fruit-growing and crop-livestock interaction systems according to the chemical, physical and biological attributes of the analyzed soil. The fruit growing systems and crop-livestock interaction promoted lower results for pH, nitrogen, phosphorus, potassium, calcium, magnesium, organic carbon and macroporosity, in addition to higher aluminum content and higher soil density in relation to native forest. All evaluated land use systems showed a decrease in microbial biomass carbon, basal respiration and microbial quotient, and the crop-livestock interaction system showed an increase in the metabolic quotient in relation to forest. The land use system most similar to native forest was the agroforestry system.As alterações nos atributos dos solos são ocasionadas pela conversão dos sistemas de mata nativa a sistemas de uso agropecuário na Amazônia e as avaliações dos atributos ajudam no monitoramento da conservação dos solos tropicais. O objetivo deste trabalho foi avaliar os sistemas de uso da terra e as consequentes alterações provocadas pelo manejo sobre os atributos químicos, físicos e biológicos do solo em comparação com esses atributos em condições naturais do solo no município de Marabá, no sudeste do estado do Pará. Os sistemas avaliados foram a mata nativa, sistema agroflorestal, fruticultura e interação lavoura-pecuária. Para a avaliação dos atributos do solo, foram coletadas 12 amostras compostas de solo em cada sistema, totalizando 48 amostras. A avaliação dos dados obtidos foi realizada através de análises multivariadas e análise exploratória dos dados através dos valores médios e do coeficiente da variação. A conversão da mata nativa em sistemas de usos da terra impactou negativamente nos atributos químicos, físicos e biológicos do solo. As técnicas de análises multivariadas separaram os sistemas mata nativa e sistema agroflorestal dos sistemas fruticultura e interação lavoura-pecuária de acordo com os atributos químicos, físicos e biológicos no solo analisado. Os sistemas fruticultura e interação lavoura-pecuária promoveram menores resultados de pH, nitrogênio, fósforo, potássio, cálcio, magnésio, carbono orgânico e macroporosidade, além de maiores teores alumínio e maior densidade do solo em relação a mata nativa. Todos os sistemas de uso da terra avaliados apresentaram diminuição do carbono da biomassa microbiana, da respiração basal e do quociente microbiano, e o sistema de interação lavoura-pecuária apresentou a elevação do quociente metabólico em relação a mata. O sistema de uso da terra com mais semelhança à mata nativa foi o sistema agroflorestal.Universidade Estadual Paulista (Unesp)Corá, José Eduardo [UNESP]Universidade Estadual Paulista (Unesp)Ribeiro, Sandro Barbosa2021-08-23T16:11:14Z2021-08-23T16:11:14Z2021-07-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfhttp://hdl.handle.net/11449/21413633004102001P4porinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESP2023-11-22T06:14:48Zoai:repositorio.unesp.br:11449/214136Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-22T06:14:48Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará Chemical, physical and biological attributes of soil in land use systems in Marabá, in southeastern Pará |
title |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará |
spellingShingle |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará Ribeiro, Sandro Barbosa Conservação do solo Degradação do solo Uso da terra Sistemas amazônicos Qualidade do solo Estrutura do solo |
title_short |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará |
title_full |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará |
title_fullStr |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará |
title_full_unstemmed |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará |
title_sort |
Atributos químicos, físicos e biológicos do solo em sistemas de uso da terra em Marabá, no sudeste do Pará |
author |
Ribeiro, Sandro Barbosa |
author_facet |
Ribeiro, Sandro Barbosa |
author_role |
author |
dc.contributor.none.fl_str_mv |
Corá, José Eduardo [UNESP] Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Ribeiro, Sandro Barbosa |
dc.subject.por.fl_str_mv |
Conservação do solo Degradação do solo Uso da terra Sistemas amazônicos Qualidade do solo Estrutura do solo |
topic |
Conservação do solo Degradação do solo Uso da terra Sistemas amazônicos Qualidade do solo Estrutura do solo |
description |
Changes in soil attributes are caused by the conversion of native forest systems to agricultural use systems in the Amazon, and attribute assessments help in monitoring the conservation of tropical soils. The objective of this work was to evaluate the land use systems and the consequent changes caused by the management on the chemical, physical and biological attributes of the soil in comparison with these attributes under natural soil conditions in the municipality of Marabá, in the southeast of the state of Pará. The systems evaluated were native forest, agroforestry system, fruit culture and crop-livestock interaction. For the evaluation of soil attributes, 12 composite soil samples were collected in each system, totaling 48 samples. The evaluation of the obtained data was carried out through multivariate analysis and exploratory data analysis through the mean values and the coefficient of variation. The conversion of native forest into land use systems negatively impacted the chemical, physical and biological attributes of the soil. The multivariate analysis techniques separated the native forest and agroforestry systems from the fruit-growing and crop-livestock interaction systems according to the chemical, physical and biological attributes of the analyzed soil. The fruit growing systems and crop-livestock interaction promoted lower results for pH, nitrogen, phosphorus, potassium, calcium, magnesium, organic carbon and macroporosity, in addition to higher aluminum content and higher soil density in relation to native forest. All evaluated land use systems showed a decrease in microbial biomass carbon, basal respiration and microbial quotient, and the crop-livestock interaction system showed an increase in the metabolic quotient in relation to forest. The land use system most similar to native forest was the agroforestry system. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-23T16:11:14Z 2021-08-23T16:11:14Z 2021-07-05 |
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 |
http://hdl.handle.net/11449/214136 33004102001P4 |
url |
http://hdl.handle.net/11449/214136 |
identifier_str_mv |
33004102001P4 |
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 |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
publisher.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1799965029561270272 |