Data/hora: 12/06/2024 16:59:28

Provedor de dados: | 90
País: | Brazil
Título: | The effect of intrinsic soil properties on soil quality assessments
Autores: | Samuel-Rosa,Alessandro; Dalmolin,Ricardo Simão Diniz; Miguel,Pablo; Zalamena,Jovani; Dick,Deborah Pinheiro.
Data: | 2013-10-01
Ano: | 2013
Palavras-chave: | Soil quality; Family farms; ANCOVA; Spurious correlation.
Resumo: | The assessment of soil quality is based on indicators and indices derived from soil properties. However, intrinsic soil properties may interfere with other soil properties that vary under different land uses and are used to calculate the indices. The aim of this study was to assess the extent to which intrinsic soil properties (clay and iron oxide contents) explain variable soil properties (sum of bases, potential acidity, organic carbon, total porosity, and bulk density) under different land uses (native forest, no-tillage and conventional agriculture) on small family farms in Southern Brazil. The results showed that the five properties evaluated can be included in soil quality assessments and are not influenced by the clay and iron oxide contents. It was concluded that for little weathered 1:1 and 2:1 phyllosilicate rich-soils, if the difference between the maximum and the minimum clay content under the different land uses is less than about 200 g kg-1 and the iron oxide content less than about 15 g kg-1, the physico-chemical soil properties in the surface layer are determined mostly by the land use.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500013
Editor: | Sociedade Brasileira de Ciência do Solo
Relação: | 10.1590/S0100-06832013000500013
Formato: | text/html
Fonte: | Revista Brasileira de Ciência do Solo  v.37 n.5 2013
Fonte: | info:eu-repo/semantics/openAccess