SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME
Veredas are humid tropical ecosystems, generally associated to hydromorphic soils and a shallow water table. The soils of these ecosystems are affected by the use of the areas around these veredas. The objective of this study was to determine soil organic matter (SOM) fractions in veredas adjacent t...
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Sociedade Brasileira de Ciência do Solo
2015-02-01
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doaj-0a49ef91567f49cdbe9411056f6dc36a2021-01-02T06:46:27ZengSociedade Brasileira de Ciência do SoloRevista Brasileira de Ciência do Solo1806-96572015-02-0139122223110.1590/01000683rbcs20150048S0100-06832015000100222SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOMERicardo Fernandes de SousaEliana Paula Fernandes BrasilCícero Célio de FigueiredoWilson Mozena LeandroVeredas are humid tropical ecosystems, generally associated to hydromorphic soils and a shallow water table. The soils of these ecosystems are affected by the use of the areas around these veredas. The objective of this study was to determine soil organic matter (SOM) fractions in veredas adjacent to preserved (native savanna) and disturbed environments (agricultural areas and pastures) in the Cerrado biome. Soil samples were collected from the 0-10 and 10-20 cm layers along reference lines drawn along the relief following the upper, middle and lower positions of one of the slopes, in the direction of the draining line of the vereda. The soil analysis determined: total soil OC, total nitrogen and C:N ratio; C and N contents and C:N ratio in particulate and mineral-associated fractions (of SOM); fulvic acids, humic acids and humin fractions and ratio between humic and fulvic acids. The agricultural use around the veredas induced changes in the SOM fractions, more pronounced in the lower part of the slope. In the soil surface of this part, the OC levels in the humic substances and the particulate fraction of SOM, as well as total soil OC were reduced in the vereda next to crop fields.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100222&lng=en&tlng=ensolos hidromórficosuso da terrafração particuladasubstâncias húmicascarbono orgânico |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ricardo Fernandes de Sousa Eliana Paula Fernandes Brasil Cícero Célio de Figueiredo Wilson Mozena Leandro |
spellingShingle |
Ricardo Fernandes de Sousa Eliana Paula Fernandes Brasil Cícero Célio de Figueiredo Wilson Mozena Leandro SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME Revista Brasileira de Ciência do Solo solos hidromórficos uso da terra fração particulada substâncias húmicas carbono orgânico |
author_facet |
Ricardo Fernandes de Sousa Eliana Paula Fernandes Brasil Cícero Célio de Figueiredo Wilson Mozena Leandro |
author_sort |
Ricardo Fernandes de Sousa |
title |
SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME |
title_short |
SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME |
title_full |
SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME |
title_fullStr |
SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME |
title_full_unstemmed |
SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME |
title_sort |
soil organic matter fractions in preserved and disturbed wetlands of the cerrado biome |
publisher |
Sociedade Brasileira de Ciência do Solo |
series |
Revista Brasileira de Ciência do Solo |
issn |
1806-9657 |
publishDate |
2015-02-01 |
description |
Veredas are humid tropical ecosystems, generally associated to hydromorphic soils and a shallow water table. The soils of these ecosystems are affected by the use of the areas around these veredas. The objective of this study was to determine soil organic matter (SOM) fractions in veredas adjacent to preserved (native savanna) and disturbed environments (agricultural areas and pastures) in the Cerrado biome. Soil samples were collected from the 0-10 and 10-20 cm layers along reference lines drawn along the relief following the upper, middle and lower positions of one of the slopes, in the direction of the draining line of the vereda. The soil analysis determined: total soil OC, total nitrogen and C:N ratio; C and N contents and C:N ratio in particulate and mineral-associated fractions (of SOM); fulvic acids, humic acids and humin fractions and ratio between humic and fulvic acids. The agricultural use around the veredas induced changes in the SOM fractions, more pronounced in the lower part of the slope. In the soil surface of this part, the OC levels in the humic substances and the particulate fraction of SOM, as well as total soil OC were reduced in the vereda next to crop fields. |
topic |
solos hidromórficos uso da terra fração particulada substâncias húmicas carbono orgânico |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100222&lng=en&tlng=en |
work_keys_str_mv |
AT ricardofernandesdesousa soilorganicmatterfractionsinpreservedanddisturbedwetlandsofthecerradobiome AT elianapaulafernandesbrasil soilorganicmatterfractionsinpreservedanddisturbedwetlandsofthecerradobiome AT ciceroceliodefigueiredo soilorganicmatterfractionsinpreservedanddisturbedwetlandsofthecerradobiome AT wilsonmozenaleandro soilorganicmatterfractionsinpreservedanddisturbedwetlandsofthecerradobiome |
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