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PROPIEDADES DEL SUELO EN BOSQUE Y PAJONAL; RESERVA NATURAL PUEBLO VIEJO, NARI O, COLOMBIA SOIL PROPERTIES IN FOREST AND GRASSLANDS; PUEBLO VIEJO NATURAL RESERVE, NARI O, COLOMBIA

Keywords: Suelos , pajonal , bosque alto andino , Andes , Nari o , Soils , grassland , woodland of the High Andes , Andes , Nari o

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Abstract:

Se realizó un estudio exploratorio con el objetivo de comparar algunas propiedades químicas, físicas y biológicas de los suelos con cobertura en bosque de ladera (Bosque1), bosque en la vertiente del cauce de agua (Bosque2) y Pajonal, situados a similar altura, en la Reserva Natural Pueblo Viejo (Nari o). Se tomaron tres muestras de suelo por cada sitio, para un total de nueve muestras. Los datos, se procesaron mediante pruebas no paramétricas y Análisis de Componentes Principales. Se presentan diferencias estadísticas significativas entre Bosque2 y Pajonal, en C, N, CIC y Al, densidad aparente y densidad de Mollusca y, entre Bosque1 y Pajonal, en Mn y Cu. El análisis multivariado diferencia tres grupos correspondientes a los tres sitios. 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.

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