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An exploratory study was carried out in order to compare the chemical, physical and biological properties of vegetation-covered soils in ladder woodlands (Afforested area No.1), woodlands located in the drainage area of a water source (Afforested area No.2) and grassland, situated at the same altitude, in the "Pueblo Viejo" Nature Reserve. Three soil samples were taken in each location, with a total of nine samples. The data were processed using non-parametric tests and Principal Component Analysis. There are significant statistical differences between Afforested area No.2 and grassland of levels of C, N, CEC, Al, bulk density and density of Mollusca, and between grassland and afforested area No.1 in levels of Mn and Cu. The multivariate analysis considered three groups, corresponding to the three locations.

Propiedades del suelo en bosque y pajonal; reserva natural pueblo viejo, Nariño, Colombia