Matéria orgânica e textura do solo em veredas conservadas e antropizadas no bioma cerrado
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Data
2011
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Resumo
Veredas (a type of wetland) are humid ecosystems, generally associated to hydromorphic soils and
shallow water table, which occur frequently in the neighborhood of the springs and watercourses in the
Cerrado region. The objective of this work was to study wetland soils located in undisturbed (native
forest) and disturbed (agriculture and pasture) environments by means of determination of the soil texture
and organic matter contents. Three wetlands were selected for this study: undisturbed wetland, surrounded
by natural vegetation; disturbed wetland, surrounded by pasture areas; and disturbed wetland, surrounded
by cultivated areas. Soil samples were collected at three different depths, following reference leveled lines
defined, according to their positions in the relief, i.e., upper, middle and lower slope positions. The
reference lines were approximately parallel to the direction of the wetland fluvial channel. It was verified
that the clay contents in the lower portion of the slope were higher for the disturbed environments and
the contents of silt were higher for the disturbed wetland surrounded by agricultural areas. The organic
matter contents in the lower portion of the slope were lower for the disturbed wetlands.
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Palavras-chave
Áreas úmidas, Solos hidromórficos, uso da terra, Propriedades do solo, Soil properties, Hydromorphic soils, Land use
Citação
SOUSA, Ricardo F. de; NASCIMENTO, Jorge L. do; FERNANDES, Eliana P.; LEANDRO, Wilson M.; CAMPOS, Alfredo B. de. Matéria orgânica e textura do solo em veredas conservadas e antropizadas no bioma cerrado. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 15, n. 8, p. 861-866, 2011.