Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central
Autor(a) principal: | |
---|---|
Data de Publicação: | 2005 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/5464 |
Resumo: | The irrigated áreas are caracterized by an intensification of the land use, and as consequence, an intense use of the soil. This usually results in a higher pressure of the soil structure degradation, causing many times soil compaction. The main cause is the intensive traffic of machines and equipments, that usually occurs an soil with higher soil water content. The soil compaction modifyes some soil physical characteristics, decreasing soil aeration, decrease water infitration and increasing the mechanical resistance of the soil, affecting root growing and development. The objetive of this study was to carry out soil physical characterization of irrigated areas of some Brazilian regions and collect informations necessary to guide soil management decisions. Soil sampling were taken in irrigated areas cultivated under a central pivot irrigation system, in the Rio Grande de Sul State (RS) and central region of Brazil. The soil profile was divided in three soil layers: superficial, intermediate and inferior. Samples were collected in the median portion of each soil layer and the following determinations: were conducted: soil texture, bulk density (Bd), particles density, porosity and the water content of the soil water potential of -0.001, -0.006, -0.033, -0.01, -0.5 and -1.5 Mpa. Soil types were grouped in seven ranges of clay content: 0-20; 20-30; 30-40; 40-50; 50-60; 60-70 and ligher than 70% of clay. For each clay content a critical values of bulk density (Bd) and of the soil macroporosity (macro) were established values (above and below the Bd and macro critical level) to classify as soil compacted. The indication of soil compaction was grouped in four levels: NC - no compacted; CD - indication of soil compaction due to Bd; CM - indication of soil compaction due to macroporosity and CDM - indication of soil compaction due to both: Bd and macroporosity. The majority of soil samples colleted in the RS was classified in the range of 40-50% of clay content in the superficial layer and in the range higher than 70% in the intermediate and inferior soil layers. In the Goias State (GO), the majority of soil samples were classified in the range of clay content higher than 70% in the three soil profile layers. In Minas Gerais State (MG) the majority of soil sample collected was classified in the range of 20-30% of clay content in the superficial and 30-40% of clay content in the intermediate and inferior layers. In the Bahia State (BA), the majority of soil sample collected was classified in the range of 0-20% of clay content, in the three layers of the profile. Considering the entire area sampled in the RS 66.5% presented indication of soil compaction in the superficial layer, 25% in the intermediate layer and 9.5% in the inferior layer. The superficial layer of the soil profile presented the highest frequency of soil samples with indication of soil compaction for the levels of CM and CDM for the range of 40-50% of clay content, and the range of 50-60% of clay content in the compaction level of CD. However, in the central region of Brazil; 13.3% of the areas in GO, 24.1% of the areas in MG, and 29.2% of the areas in BA had preseted indication of soil compaction in the superficial layer. In BA the collected soil samples in the superficial layer in the range 0-20% of clay content presented the highest frequency of indication of soil compaction for the leves CD, CM and CDM. In the state of GO and MG the highest indication of soil compaction in the superficial layer was observed for the CM level and occurred in the ranges of 20-30 and 30-40% of clay content. |
id |
UFSM_1905a502dbe5d6efd9ce6df988f27c68 |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/5464 |
network_acronym_str |
UFSM |
network_name_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
repository_id_str |
|
spelling |
2017-04-202017-04-202005-02-28MICHELON, Cleudson José. Physical quality of irrigated soil of Rio Grande do Sul state and central region of Brazil. 2005. 114 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2005.http://repositorio.ufsm.br/handle/1/5464The irrigated áreas are caracterized by an intensification of the land use, and as consequence, an intense use of the soil. This usually results in a higher pressure of the soil structure degradation, causing many times soil compaction. The main cause is the intensive traffic of machines and equipments, that usually occurs an soil with higher soil water content. The soil compaction modifyes some soil physical characteristics, decreasing soil aeration, decrease water infitration and increasing the mechanical resistance of the soil, affecting root growing and development. The objetive of this study was to carry out soil physical characterization of irrigated areas of some Brazilian regions and collect informations necessary to guide soil management decisions. Soil sampling were taken in irrigated areas cultivated under a central pivot irrigation system, in the Rio Grande de Sul State (RS) and central region of Brazil. The soil profile was divided in three soil layers: superficial, intermediate and inferior. Samples were collected in the median portion of each soil layer and the following determinations: were conducted: soil texture, bulk density (Bd), particles density, porosity and the water content of the soil water potential of -0.001, -0.006, -0.033, -0.01, -0.5 and -1.5 Mpa. Soil types were grouped in seven ranges of clay content: 0-20; 20-30; 30-40; 40-50; 50-60; 60-70 and ligher than 70% of clay. For each clay content a critical values of bulk density (Bd) and of the soil macroporosity (macro) were established values (above and below the Bd and macro critical level) to classify as soil compacted. The indication of soil compaction was grouped in four levels: NC - no compacted; CD - indication of soil compaction due to Bd; CM - indication of soil compaction due to macroporosity and CDM - indication of soil compaction due to both: Bd and macroporosity. The majority of soil samples colleted in the RS was classified in the range of 40-50% of clay content in the superficial layer and in the range higher than 70% in the intermediate and inferior soil layers. In the Goias State (GO), the majority of soil samples were classified in the range of clay content higher than 70% in the three soil profile layers. In Minas Gerais State (MG) the majority of soil sample collected was classified in the range of 20-30% of clay content in the superficial and 30-40% of clay content in the intermediate and inferior layers. In the Bahia State (BA), the majority of soil sample collected was classified in the range of 0-20% of clay content, in the three layers of the profile. Considering the entire area sampled in the RS 66.5% presented indication of soil compaction in the superficial layer, 25% in the intermediate layer and 9.5% in the inferior layer. The superficial layer of the soil profile presented the highest frequency of soil samples with indication of soil compaction for the levels of CM and CDM for the range of 40-50% of clay content, and the range of 50-60% of clay content in the compaction level of CD. However, in the central region of Brazil; 13.3% of the areas in GO, 24.1% of the areas in MG, and 29.2% of the areas in BA had preseted indication of soil compaction in the superficial layer. In BA the collected soil samples in the superficial layer in the range 0-20% of clay content presented the highest frequency of indication of soil compaction for the leves CD, CM and CDM. In the state of GO and MG the highest indication of soil compaction in the superficial layer was observed for the CM level and occurred in the ranges of 20-30 and 30-40% of clay content.As áreas irrigadas caracterizam-se pela intensificação dos cultivos, e por conseqüência, uma intensa utilização do solo. Isso resulta em uma maior pressão de degradação da estrutura do solo, ocasionando muitas vezes a compactação dos solos. O principal efeito refere-se ao tráfego de máquinas e equipamentos, que além de ser mais intenso, usualmente ocorre em solo com maior conteúdo de água, mais suscetível à compactação. A compactação altera as características do solo, diminuindo a aeração, infiltração de água no solo e aumentando a resistência mecânica à penetração, dificultando o crescimento dos vegetais. O objetivo do trabalho foi realizar a caracterização física dos solos irrigados de algumas regiões brasileiras, com vistas a promover uma base de informações para orientar a tomada de decisões relativas ao manejo de áreas irrigadas. O trabalho foi conduzido em áreas irrigadas sob pivô central, no Rio Grande do Sul (RS) e no Brasil central. Os perfis dos solos foram divididos em três camadas, superficial, intermediária e inferior. As amostras de solo foram coletadas na porção mediana de cada camada e realizou-se as seguintes determinações: textura do solo, densidade do solo (Ds) e de partículas, porosidade e conteúdo de água no solo nos potenciais de -0.001, -0.006, -0.033, -0.01, -0.5 e -1.5 MPa. Os solos foram agrupados em sete faixas de teor de argila assim descritas: 0-20; 20-30; 30-40; 40-50; 50-60; 60-70 e >70% de argila. Para cada faixa de teor de argila estabeleceu-se um valor crítico de densidade do solo (Ds) e de macroporosidade (macro), acima do qual (Ds) e abaixo do qual (macro), as amostras de solo foram caracterizadas com indicação de compactação. Em relação a indicação de compactação, as amostras de solos foram agrupados em quatro níveis: NC: amostra não compactada; C-D: amostra com indicação de compactação em função da Ds; C-M: amostra com indicação de compactação função da macro e CDM: amostra com indicação de compactação em função da Ds e macro. A maior freqüência das amostras de solo coletadas no Estado do RS foram classificadas na faixa de 40-50% de argila, na camada superficial e na faixa de argila superior a 70% nas camadas intermediária e inferior. No Estado de Goiás (GO), a maior freqüência das amostras coletadas foram classificadas na faixa de argila superior a 70% nas três camadas do perfil do solo. Em Minas Gerais (MG) observou-se que a maior freqüência das amostras de solo coletadas foi classificada na faixa de 20-30% de argila na camada superficial e 30-40% de argila nas camadas intermediária e inferior. No Estado da Bahia (BA) a maior freqüência das amostras coletadas foram classificadas na faixa de 0-20% de argila, nas três camadas do perfil do solo. Do total das áreas amostradas no RS, 66,5% apresentaram indicação de compactação do solo na camada superficial, 25% na camada intermediária e 9,5% na camada inferior. Na camada superficial, a faixa de 40-50% de argila apresentou a maior freqüência de amostras com indicação de compactação nos níveis C-M e C-DM e a faixa de 50-60% de argila no nível de compactação C-D. No Brasil central, 13,3% das áreas amostradas no Estado de GO, 24,1% das áreas de MG e 29,2% das áreas da BA, apresentaram indicação de compactação na camada de superficial. No Estado da BA, as amostras de solo coletadas na camada superficial classificadas na faixa de 0-20% de argila, apresentaram a maior freqüência de indicação de compactação nos níveis C-D, C-M e C-DM. Nos Estados de GO e MG a maior freqüência de indicação de compactação, na camada superficial, foi observada no nível C-M e ocorreu nas faixas de 20-30 e 30-40% de argila no Estado de GO e na faixa de 20-30% de argila no Estado de MG.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Ciência do SoloUFSMBRAgronomiaAgriculturaSoloPropriedades fisicasCompactacao do soloQualidade do soloSolo irrigadoPedofunctionsWater contentModelingCNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLOQualidade física de solos irrigados do Rio Grande do Sul e do Brasil centralPhysical quality of irrigated soil of Rio Grande do Sul state and central region of Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisCarlesso, Reimarhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787243P5Reinert, Dalvan Joséhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4793527A1http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4765284E4Michelon, Cleudson José5001001000054005005005001a6ccd1d-16e8-4110-910c-7178d86e094445d78741-95d1-402a-ad95-573287af55e195c99306-72cd-445e-8070-f2ce83f97274info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALCLEUDSON MICHELON.pdfapplication/pdf377722http://repositorio.ufsm.br/bitstream/1/5464/1/CLEUDSON%20MICHELON.pdfc6e94facac2fe805d31971296a7a4dd9MD51TEXTCLEUDSON MICHELON.pdf.txtCLEUDSON MICHELON.pdf.txtExtracted texttext/plain166346http://repositorio.ufsm.br/bitstream/1/5464/2/CLEUDSON%20MICHELON.pdf.txt302bc2466d40136f5a3c35f4cb5a9ca0MD52THUMBNAILCLEUDSON MICHELON.pdf.jpgCLEUDSON MICHELON.pdf.jpgIM Thumbnailimage/jpeg5041http://repositorio.ufsm.br/bitstream/1/5464/3/CLEUDSON%20MICHELON.pdf.jpgc42fa0856524381830bc42ff49ea8f03MD531/54642017-07-25 11:16:17.536oai:repositorio.ufsm.br:1/5464Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2017-07-25T14:16:17Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central |
dc.title.alternative.eng.fl_str_mv |
Physical quality of irrigated soil of Rio Grande do Sul state and central region of Brazil |
title |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central |
spellingShingle |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central Michelon, Cleudson José Agricultura Solo Propriedades fisicas Compactacao do solo Qualidade do solo Solo irrigado Pedofunctions Water content Modeling CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
title_short |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central |
title_full |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central |
title_fullStr |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central |
title_full_unstemmed |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central |
title_sort |
Qualidade física de solos irrigados do Rio Grande do Sul e do Brasil central |
author |
Michelon, Cleudson José |
author_facet |
Michelon, Cleudson José |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Carlesso, Reimar |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787243P5 |
dc.contributor.referee1.fl_str_mv |
Reinert, Dalvan José |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4793527A1 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4765284E4 |
dc.contributor.author.fl_str_mv |
Michelon, Cleudson José |
contributor_str_mv |
Carlesso, Reimar Reinert, Dalvan José |
dc.subject.por.fl_str_mv |
Agricultura Solo Propriedades fisicas Compactacao do solo Qualidade do solo Solo irrigado |
topic |
Agricultura Solo Propriedades fisicas Compactacao do solo Qualidade do solo Solo irrigado Pedofunctions Water content Modeling CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
dc.subject.eng.fl_str_mv |
Pedofunctions Water content Modeling |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::CIENCIA DO SOLO |
description |
The irrigated áreas are caracterized by an intensification of the land use, and as consequence, an intense use of the soil. This usually results in a higher pressure of the soil structure degradation, causing many times soil compaction. The main cause is the intensive traffic of machines and equipments, that usually occurs an soil with higher soil water content. The soil compaction modifyes some soil physical characteristics, decreasing soil aeration, decrease water infitration and increasing the mechanical resistance of the soil, affecting root growing and development. The objetive of this study was to carry out soil physical characterization of irrigated areas of some Brazilian regions and collect informations necessary to guide soil management decisions. Soil sampling were taken in irrigated areas cultivated under a central pivot irrigation system, in the Rio Grande de Sul State (RS) and central region of Brazil. The soil profile was divided in three soil layers: superficial, intermediate and inferior. Samples were collected in the median portion of each soil layer and the following determinations: were conducted: soil texture, bulk density (Bd), particles density, porosity and the water content of the soil water potential of -0.001, -0.006, -0.033, -0.01, -0.5 and -1.5 Mpa. Soil types were grouped in seven ranges of clay content: 0-20; 20-30; 30-40; 40-50; 50-60; 60-70 and ligher than 70% of clay. For each clay content a critical values of bulk density (Bd) and of the soil macroporosity (macro) were established values (above and below the Bd and macro critical level) to classify as soil compacted. The indication of soil compaction was grouped in four levels: NC - no compacted; CD - indication of soil compaction due to Bd; CM - indication of soil compaction due to macroporosity and CDM - indication of soil compaction due to both: Bd and macroporosity. The majority of soil samples colleted in the RS was classified in the range of 40-50% of clay content in the superficial layer and in the range higher than 70% in the intermediate and inferior soil layers. In the Goias State (GO), the majority of soil samples were classified in the range of clay content higher than 70% in the three soil profile layers. In Minas Gerais State (MG) the majority of soil sample collected was classified in the range of 20-30% of clay content in the superficial and 30-40% of clay content in the intermediate and inferior layers. In the Bahia State (BA), the majority of soil sample collected was classified in the range of 0-20% of clay content, in the three layers of the profile. Considering the entire area sampled in the RS 66.5% presented indication of soil compaction in the superficial layer, 25% in the intermediate layer and 9.5% in the inferior layer. The superficial layer of the soil profile presented the highest frequency of soil samples with indication of soil compaction for the levels of CM and CDM for the range of 40-50% of clay content, and the range of 50-60% of clay content in the compaction level of CD. However, in the central region of Brazil; 13.3% of the areas in GO, 24.1% of the areas in MG, and 29.2% of the areas in BA had preseted indication of soil compaction in the superficial layer. In BA the collected soil samples in the superficial layer in the range 0-20% of clay content presented the highest frequency of indication of soil compaction for the leves CD, CM and CDM. In the state of GO and MG the highest indication of soil compaction in the superficial layer was observed for the CM level and occurred in the ranges of 20-30 and 30-40% of clay content. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005-02-28 |
dc.date.accessioned.fl_str_mv |
2017-04-20 |
dc.date.available.fl_str_mv |
2017-04-20 |
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 |
MICHELON, Cleudson José. Physical quality of irrigated soil of Rio Grande do Sul state and central region of Brazil. 2005. 114 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2005. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/5464 |
identifier_str_mv |
MICHELON, Cleudson José. Physical quality of irrigated soil of Rio Grande do Sul state and central region of Brazil. 2005. 114 f. Dissertação (Mestrado em Agronomia) - Universidade Federal de Santa Maria, Santa Maria, 2005. |
url |
http://repositorio.ufsm.br/handle/1/5464 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
500100100005 |
dc.relation.confidence.fl_str_mv |
400 500 500 500 |
dc.relation.authority.fl_str_mv |
1a6ccd1d-16e8-4110-910c-7178d86e0944 45d78741-95d1-402a-ad95-573287af55e1 95c99306-72cd-445e-8070-f2ce83f97274 |
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 Federal de Santa Maria |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciência do Solo |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Agronomia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do 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 |
Biblioteca Digital de Teses e Dissertações do UFSM |
collection |
Biblioteca Digital de Teses e Dissertações do UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/5464/1/CLEUDSON%20MICHELON.pdf http://repositorio.ufsm.br/bitstream/1/5464/2/CLEUDSON%20MICHELON.pdf.txt http://repositorio.ufsm.br/bitstream/1/5464/3/CLEUDSON%20MICHELON.pdf.jpg |
bitstream.checksum.fl_str_mv |
c6e94facac2fe805d31971296a7a4dd9 302bc2466d40136f5a3c35f4cb5a9ca0 c42fa0856524381830bc42ff49ea8f03 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1791086187145854976 |