Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/25693 |
Resumo: | The advancement of agricultural activities without considering the soil structural conditions ceases at the expense of those environments. This study aimed at evaluating the spatial variability of aggregate stability, bulk density, total organic carbon (TOC) and carbon stock in areas of natural grassland and forest, in the region of Humaitá, Amazonas State, Brazil. The soils were sampled at the crossing points of a grid with 70 m x 70 m, at regular intervals of 10 m, at the depths of 0.0-0.05 m, 0.05-0.10 m and 0.10-0.20 m, totaling 64 samples per depth. The results of the geostatistical analysis showed spatial dependence of attributes. The smaller ranges resulted from the constant variations in the relief of the natural grassland area. The mean values for mean weight diameter (MWD) and TOC were respectively around 3.0 mm and 29.0 g kg-1 of the surface layer, similarly to natural grassland and forest areas, confirming the proportional correlation between TOC and MWD. However, the bulk density greater than 1.40 kg dm-3 expresses the inefficiency of soil structural functions in the natural grassland area. The carbon stock contents at the different depths were more favored by TOC than by the different densification levels of the soils evaluated. |
id |
UFG-6_d7a8e6cd5ef3844cb08fee795d2a0e79 |
---|---|
oai_identifier_str |
oai:ojs.revistas.ufg.br:article/25693 |
network_acronym_str |
UFG-6 |
network_name_str |
Pesquisa Agropecuária Tropical (Online) |
repository_id_str |
|
spelling |
Spatial variability of aggregate stability and carbon stock in Cambisol and ArgisolVariabilidade espacial da estabilidade de agregados e estoque de carbono em Cambissolo e ArgissoloSoil structurelandscape formsAmazon Forest.Estrutura do soloformas da paisagemFloresta Amazônica.The advancement of agricultural activities without considering the soil structural conditions ceases at the expense of those environments. This study aimed at evaluating the spatial variability of aggregate stability, bulk density, total organic carbon (TOC) and carbon stock in areas of natural grassland and forest, in the region of Humaitá, Amazonas State, Brazil. The soils were sampled at the crossing points of a grid with 70 m x 70 m, at regular intervals of 10 m, at the depths of 0.0-0.05 m, 0.05-0.10 m and 0.10-0.20 m, totaling 64 samples per depth. The results of the geostatistical analysis showed spatial dependence of attributes. The smaller ranges resulted from the constant variations in the relief of the natural grassland area. The mean values for mean weight diameter (MWD) and TOC were respectively around 3.0 mm and 29.0 g kg-1 of the surface layer, similarly to natural grassland and forest areas, confirming the proportional correlation between TOC and MWD. However, the bulk density greater than 1.40 kg dm-3 expresses the inefficiency of soil structural functions in the natural grassland area. The carbon stock contents at the different depths were more favored by TOC than by the different densification levels of the soils evaluated.O avanço de atividades agropecuárias, sem considerar as condições estruturais do solo, finda no detrimento destes ambientes. Este trabalho objetivou avaliar a variabilidade espacial da estabilidade de agregados, densidade do solo, carbono orgânico total (COT) e estoque de carbono de áreas de campo natural e floresta, na região de Humaitá (AM). Os solos foram amostrados nos pontos de cruzamento de uma malha de 70 m x 70 m, em intervalos regulares de 10 m, às profundidades de 0,0-0,05 m; 0,05-0,10 m; e 0,10-0,20 m, totalizando 64 amostras por profundidade. Os resultados da análise geoestatística mostraram dependência espacial dos atributos avaliados. Os menores alcances foram decorrentes das constantes variações na forma do relevo da área de campo natural. Os valores médios respectivos do índice de estabilidade diâmetro médio ponderado (DMP) e COT, em torno de 3,0 mm e 29,0 g kg-1 da camada superficial, similares aos das áreas de campo natural e floresta, confirmam a correlação proporcional entre os teores de COT e o DMP. Todavia, os níveis de densidade do solo superiores a 1,40 kg dm-3 expressam a ineficiência das funções estruturais do solo da área de campo natural. Os valores de estoque de carbono, nas diferentes profundidades, mostraram-se mais favorecidos pelos teores de COT que em razão dos diferentes níveis de adensamento dos solos estudados.Escola de Agronomia - Universidade Federal de Goiás2014-08-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionMétodos Quantitativosapplication/pdfhttps://revistas.ufg.br/pat/article/view/25693Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 44, n. 3, Jul./Sep. 2014; 246-254Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 44, n. 3, jul./set. 2014; 246-254Pesquisa Agropecuária Tropical; v. 44, n. 3, jul./set. 2014; 246-2541983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/25693/16839Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessAlho, Leandro CoutinhoCampos, Milton César CostaSilva, Douglas Marcelo Pinheiro daMantovanelli, Bruno CamposSouza, Zigomar Menezes de2020-07-10T16:32:05Zoai:ojs.revistas.ufg.br:article/25693Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:03.447800Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol Variabilidade espacial da estabilidade de agregados e estoque de carbono em Cambissolo e Argissolo |
title |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol |
spellingShingle |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol Alho, Leandro Coutinho Soil structure landscape forms Amazon Forest. Estrutura do solo formas da paisagem Floresta Amazônica. |
title_short |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol |
title_full |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol |
title_fullStr |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol |
title_full_unstemmed |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol |
title_sort |
Spatial variability of aggregate stability and carbon stock in Cambisol and Argisol |
author |
Alho, Leandro Coutinho |
author_facet |
Alho, Leandro Coutinho Campos, Milton César Costa Silva, Douglas Marcelo Pinheiro da Mantovanelli, Bruno Campos Souza, Zigomar Menezes de |
author_role |
author |
author2 |
Campos, Milton César Costa Silva, Douglas Marcelo Pinheiro da Mantovanelli, Bruno Campos Souza, Zigomar Menezes de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Alho, Leandro Coutinho Campos, Milton César Costa Silva, Douglas Marcelo Pinheiro da Mantovanelli, Bruno Campos Souza, Zigomar Menezes de |
dc.subject.por.fl_str_mv |
Soil structure landscape forms Amazon Forest. Estrutura do solo formas da paisagem Floresta Amazônica. |
topic |
Soil structure landscape forms Amazon Forest. Estrutura do solo formas da paisagem Floresta Amazônica. |
description |
The advancement of agricultural activities without considering the soil structural conditions ceases at the expense of those environments. This study aimed at evaluating the spatial variability of aggregate stability, bulk density, total organic carbon (TOC) and carbon stock in areas of natural grassland and forest, in the region of Humaitá, Amazonas State, Brazil. The soils were sampled at the crossing points of a grid with 70 m x 70 m, at regular intervals of 10 m, at the depths of 0.0-0.05 m, 0.05-0.10 m and 0.10-0.20 m, totaling 64 samples per depth. The results of the geostatistical analysis showed spatial dependence of attributes. The smaller ranges resulted from the constant variations in the relief of the natural grassland area. The mean values for mean weight diameter (MWD) and TOC were respectively around 3.0 mm and 29.0 g kg-1 of the surface layer, similarly to natural grassland and forest areas, confirming the proportional correlation between TOC and MWD. However, the bulk density greater than 1.40 kg dm-3 expresses the inefficiency of soil structural functions in the natural grassland area. The carbon stock contents at the different depths were more favored by TOC than by the different densification levels of the soils evaluated. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-08-11 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Métodos Quantitativos |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/25693 |
url |
https://revistas.ufg.br/pat/article/view/25693 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/25693/16839 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics) info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics) |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 44, n. 3, Jul./Sep. 2014; 246-254 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 44, n. 3, jul./set. 2014; 246-254 Pesquisa Agropecuária Tropical; v. 44, n. 3, jul./set. 2014; 246-254 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874818750808064 |