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Revista de Ciências Agrárias
Print version ISSN 0871-018X
Abstract
HERNANDEZ, A. J.; VIZCAYNO, C.; ALEXIS, S. and PASTOR, J.. Quantitative parameters for assessing susceptibility to erosion in tropical Dominican soils. Rev. de Ciências Agrárias [online]. 2010, vol.33, n.1, pp.128-138. ISSN 0871-018X.
The topsoil layers (0-20 cm) of different types of wet and dry tropical forests of the Pedernales province (Dominican Republic), both natural and cultivated, were assessed in terms of different parameters related to the erosion processes: particle size, silt/clay ratio, and an estimate of the possible soil loss. Some of the soils of the most valuable ecosystems are threatened by the introduction of coffee and hence the interest and objective of this work. We present these data for 79 soil samples according to the corresponding landscape units (forests) along with their dominant lithologies (crystalline limestones, carbonated limestones on alterites and coral limestones). The novelty of this study is that it uses quantitative variables to describe edaphic processes linked to erosion in this region, that had never been quantitatively studied the soils. Another relatively new fact is the methodology uses of the laser for particle size analysis.
Keywords : laser particle size analysis; natural and eroded soils; soil aggregates.