Relationships of soil microbial biomass with the chemical characteristics of organic and mineral soil fractions after mineral exploration in Eastern Brazilian Amazon

The studied area is located in Porto Trombetas, district of Oriximiná, in the northwest of Pará, state, Brazil and has been subject to bauxite mining. The chemical and biological measurements were made on sites recuperation from 1981 to 1994, and one in Yellow Latosol under secondary forest, taken a...

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Published inBoletim do Museu Paraense Emílio Goeldi. Ciências naturais Vol. 1; no. 2; pp. 121 - 131
Main Authors Carlos Ernesto Gonçalves Reynaud Schaefer, Nairam Félix de Barros, Maria de Lourdes Pinheiro Ruivo
Format Journal Article
LanguageEnglish
Published Museu Paraense Emílio Goeldi 01.08.2006
Subjects
Altered soils
Mining
Soil microbial biomass
Western Amazon
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Summary:The studied area is located in Porto Trombetas, district of Oriximiná, in the northwest of Pará, state, Brazil and has been subject to bauxite mining. The chemical and biological measurements were made on sites recuperation from 1981 to 1994, and one in Yellow Latosol under secondary forest, taken as reference. The values corresponding to the chemical and biological characteristics were obtained from analyses of the litter layer, light organic matter and soil of the altered and unaltered sites. The data were analyzed using Pearson correlation and Path Analysis. The results given how the chemical an biological composition litter layer and light organic matter were related of the carbon and microbial biomass phosphorus concentration.
ISSN:1981-8114