Data/hora: 07/06/2024 02:29:07

Provedor de dados: | 64
País: | Brazil
Título: | MICROMORPHOLOGY AND PEDOGENESIS OF MOUNTAINOUS INCEPTISOLS IN THE MANTIQUEIRA RANGE (MG)
Autores: | Pinto,Leandro Campos; Zinn,Yuri Lopes; Mello,Carlos Rogério de; Owens,Phillip Ray; Norton,Lloyd Darrell; Curi,Nilton.
Data: | 2015-10-01
Ano: | 2015
Palavras-chave: | Soil formation; Soil microstructure; Land use change; Forest soils.
Resumo: | ABSTRACTUnderstanding soil formation processes across different landscapes is needed to predict how soil properties will respond to land use change. This study aimed to characterize mountainous Inceptisols (Cambisols) under high altitude subtropical climate in southeastern Brazil, by soil physical, chemical and micromorphological analyses, under native forest and pasture. The soil under pasture had a greater bulk density than under forest, resulting in a severe reduction of macroporosity. At two depths, coarse quartz grains are angular, suggesting absence of transportational processes, thus confirming an autochthonous pedogenesis from the underlying gneissic rock. Most feldspars were weathered beyond recognition, but mineral alteration was commonly seen across cleavage plans and edges of micas. The micromorphological results suggest an intermediate stage of mineral weathering and soil development, which is in accordance with properties expected to be found in Inceptisols.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000500455
Editor: | Editora da Universidade Federal de Lavras
Relação: | 10.1590/S1413-70542015000500004
Formato: | text/html
Fonte: | Ciência e Agrotecnologia  v.39 n.5 2015
Fonte: | info:eu-repo/semantics/openAccess