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vol.11 número2BIOFERTILIZERS AND COMPOSTING ACCELERATORS OF POLLUTING MACROPHYTES OF A COLOMBIAN LAKEEVALUATION OF THE USLE MODEL TO ESTIMATE WATER EROSION IN AN ALFISOL índice de autoresíndice de materiabúsqueda de artículos
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Journal of soil science and plant nutrition

versión On-line ISSN 0718-9516

Resumen

NORAMBUENA V, Pablo et al. PRELIMINARY SURVEY OF SOME SOILS FROM CHILEAN ALTIPLANO NEAR IQUIQUE. J. Soil Sci. Plant Nutr. [online]. 2011, vol.11, n.2, pp.62-71. ISSN 0718-9516.  http://dx.doi.org/10.4067/S0718-95162011000200006.

In the Altiplano of the Iquique Province, Chile, a study was carried out for the purpose of advancing in the knowledge of the soils in the zone, to determine the soil moisture and soil temperature regimes, and to establish its taxonomic classification. In one area, at the base of the slopes of the Irruputuncu volcano, where the occurrence of lahars and the presence of moraine deposits is described, 5 soil profiles were examined morphologically and some of their chemical and physical properties were determined. Moreover, the degree of pedogenic evolution of the volcanic parent materials was assessed. The depth of the solum did not exceed 0.40 m, and the low organic carbon content, combined with the dominance of the sand fraction, determined a low water holding capacity, which hampers the development of vegetation. It was determined that the soil temperature regime is frigid and its moisture regime is ustic. None of the soils showed andic soil properties. Hence, given the limited pedogenic development it was proposed to classify them as Ustorthents (Entisols, USDA, 2010).

Palabras clave : High altitude soils; Ustic moisture regime; Andic properties; Entisols.

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