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Pinus afforestation in South Brazilian highlands: soil chemical attributes and organic matter composition Scientia Agricola
Dick,Deborah Pinheiro; Leite,Simone Benvenuti; Dalmolin,Ricardo Simão Diniz; Almeida,Henrique Cesar; Knicker,Heike.
In the last three decades, exotic tree species are being introduced in the natural pastures of the highlands located at the northeastern part of Rio Grande do Sul State (RS), Brazil. This alteration of land use may impart drastic changes in the soil attributes. In this context, this work aimed to evaluate the impact of Pinus taeda afforestation on soil chemical attributes and organic matter (SOM) composition in Leptosols from Campos de Cima da Serra, RS. Soil samples under eight year old (Pi8) and 30 year old (Pi30) Pinus plantations and under native pasture (NP) were studied. Contents of exchangeable cations and of micronutrients and soil pH were determined. The SOM composition was investigated by means of elemental analyses and FTIR spectroscopy. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: FTIR spectroscopy; Humification; Exchangeable cation; Pastures; Recalcitrance.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000200007
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