Spatial variability of the stability of aggregates and organic matter in soils with different relieves

Detalhes bibliográficos
Autor(a) principal: de Souza, Zigomar Menezes
Data de Publicação: 2004
Outros Autores: Marques Júnior, José, Pereira, Gener Tadeu
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6798
Resumo: Soils submitted to the same management system in places with small relief variation manifest different spatial variability on their attributes. The objective of this work was to evaluate the spatial variability of the geometric medium diameter, aggregates in the >2 mm class, aggregates in the 2–1 mm class and organic matter of an Oxisol under culture of the sugarcane. Samplings of the soil in regular intervals of 10 m, in grid form, totaling 100 points, collected in the depths of 0.0–0.2 m and 0.2–0.4 m were made. Data were submitted to descriptive statistics, geostatistics and in sequence to kriging analyzes. Values of the variation coefficient were low for organic matter in the depth of 0.0–0.2 m, mean in the depth of 0.2–0.4 m, high for geometric medium diameter and mean for aggregates in the >2 mm class, aggregates in the 2–1 mm class in all studied depths. The occurrence of space dependence was observed for all the variables, and the largest ones were observed in the depth of 0.0–0.2 m. Small variations in the forms of the relief condition spatial variability differentiated for organic matter and stability of aggregates in the studied depths.
id EMBRAPA-4_7417e7b893609015e5992c2e12ceae1f
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/6798
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Spatial variability of the stability of aggregates and organic matter in soils with different relievesVariabilidade espacial da estabilidade de agregados e matéria orgânica em solos de relevos diferentesSaccharum officinarum; geostatistics; kriging; soil-landscape relationship; oxisolsSaccharum officinarum; geoestatística; krigagem; relação solo-paisagem; LatossoloSoils submitted to the same management system in places with small relief variation manifest different spatial variability on their attributes. The objective of this work was to evaluate the spatial variability of the geometric medium diameter, aggregates in the >2 mm class, aggregates in the 2–1 mm class and organic matter of an Oxisol under culture of the sugarcane. Samplings of the soil in regular intervals of 10 m, in grid form, totaling 100 points, collected in the depths of 0.0–0.2 m and 0.2–0.4 m were made. Data were submitted to descriptive statistics, geostatistics and in sequence to kriging analyzes. Values of the variation coefficient were low for organic matter in the depth of 0.0–0.2 m, mean in the depth of 0.2–0.4 m, high for geometric medium diameter and mean for aggregates in the >2 mm class, aggregates in the 2–1 mm class in all studied depths. The occurrence of space dependence was observed for all the variables, and the largest ones were observed in the depth of 0.0–0.2 m. Small variations in the forms of the relief condition spatial variability differentiated for organic matter and stability of aggregates in the studied depths.Solos submetidos ao mesmo sistema de manejo em locais com pequena variação de relevo manifestam variabilidade espacial de atributos diferenciada. O objetivo deste trabalho foi avaliar a variabilidade espacial do diâmetro médio geométrico de agregados na classe >2 mm, na classe 2–1 mm e da matéria orgânica em um Latossolo Vermelho eutroférrico sob cultivo de cana-de-açúcar. Foram feitas amostragens do solo em intervalos regulares de 10 m, em forma de malha, totalizando 100 pontos, coletadas nas profundidades de 0,0–0,2 m e 0,2–0,4 m. Os dados foram submetidos à análise estatística descritiva, geoestatística e krigagem. Em relação à matéria orgânica, os valores do coeficiente de variação foram baixos na profundidade de 0,0–0,2 m e médio na profundidade de 0,2–0,4 m; foi alto para o diâmetro médio geométrico e médio para agregados na classe >2 mm e agregados na classe 2–1 mm. Observou-se dependência espacial em todas as variáveis, e os maiores alcances foram observados na profundidade de 0,0–0,2 m nas variáveis estudadas. Pequenas variações no gradiente do declive e nas formas do relevo condicionaram variabilidade espacial diferenciada da matéria orgânica e estabilidade de agregados nas profundidades estudadas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirade Souza, Zigomar MenezesMarques Júnior, JoséPereira, Gener Tadeu2004-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6798Pesquisa Agropecuaria Brasileira; v.39, n.5, maio 2004; 491-499Pesquisa Agropecuária Brasileira; v.39, n.5, maio 2004; 491-4991678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6798/3854info:eu-repo/semantics/openAccess2014-07-18T18:49:13Zoai:ojs.seer.sct.embrapa.br:article/6798Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-18T18:49:13Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Spatial variability of the stability of aggregates and organic matter in soils with different relieves
Variabilidade espacial da estabilidade de agregados e matéria orgânica em solos de relevos diferentes
title Spatial variability of the stability of aggregates and organic matter in soils with different relieves
spellingShingle Spatial variability of the stability of aggregates and organic matter in soils with different relieves
de Souza, Zigomar Menezes
Saccharum officinarum; geostatistics; kriging; soil-landscape relationship; oxisols
Saccharum officinarum; geoestatística; krigagem; relação solo-paisagem; Latossolo
title_short Spatial variability of the stability of aggregates and organic matter in soils with different relieves
title_full Spatial variability of the stability of aggregates and organic matter in soils with different relieves
title_fullStr Spatial variability of the stability of aggregates and organic matter in soils with different relieves
title_full_unstemmed Spatial variability of the stability of aggregates and organic matter in soils with different relieves
title_sort Spatial variability of the stability of aggregates and organic matter in soils with different relieves
author de Souza, Zigomar Menezes
author_facet de Souza, Zigomar Menezes
Marques Júnior, José
Pereira, Gener Tadeu
author_role author
author2 Marques Júnior, José
Pereira, Gener Tadeu
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv de Souza, Zigomar Menezes
Marques Júnior, José
Pereira, Gener Tadeu
dc.subject.por.fl_str_mv Saccharum officinarum; geostatistics; kriging; soil-landscape relationship; oxisols
Saccharum officinarum; geoestatística; krigagem; relação solo-paisagem; Latossolo
topic Saccharum officinarum; geostatistics; kriging; soil-landscape relationship; oxisols
Saccharum officinarum; geoestatística; krigagem; relação solo-paisagem; Latossolo
description Soils submitted to the same management system in places with small relief variation manifest different spatial variability on their attributes. The objective of this work was to evaluate the spatial variability of the geometric medium diameter, aggregates in the >2 mm class, aggregates in the 2–1 mm class and organic matter of an Oxisol under culture of the sugarcane. Samplings of the soil in regular intervals of 10 m, in grid form, totaling 100 points, collected in the depths of 0.0–0.2 m and 0.2–0.4 m were made. Data were submitted to descriptive statistics, geostatistics and in sequence to kriging analyzes. Values of the variation coefficient were low for organic matter in the depth of 0.0–0.2 m, mean in the depth of 0.2–0.4 m, high for geometric medium diameter and mean for aggregates in the >2 mm class, aggregates in the 2–1 mm class in all studied depths. The occurrence of space dependence was observed for all the variables, and the largest ones were observed in the depth of 0.0–0.2 m. Small variations in the forms of the relief condition spatial variability differentiated for organic matter and stability of aggregates in the studied depths.
publishDate 2004
dc.date.none.fl_str_mv 2004-05-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6798
url https://seer.sct.embrapa.br/index.php/pab/article/view/6798
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6798/3854
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 Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.39, n.5, maio 2004; 491-499
Pesquisa Agropecuária Brasileira; v.39, n.5, maio 2004; 491-499
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416712792571904