[automatically translated] The standard procedures of physical analysis of soils provide a sieving of the soil, with removal of the skeleton, the fraction of larger diameter of two millimeters. Several studies have confirmed, however, that the skeleton, in addition to influencing the chemical-physical-hydrological soil, is in some cases a valuable source of fine soil, organic carbon, nitrogen, and possesses its cation exchange capacity. Furthermore, for the purposes taxonomic is a diagnostic feature for the identification of lithological discontinuity. The aim of this study was to determine the quantitative and qualitative and classify the skeleton of secondary salinity soils with gypsum, in an area of south-central Sicily, where two transects along which eight profiles have been opened have been identified. The pedon have been described in the field, sampled in accordance with the sequence of genetic horizons and analyzed for the reaction, electrical conductivity, total carbonates, gypsum, organic carbon, cation exchange capacity and exchange bases and for the quantification and classification of the skeleton. The results showed that most of the skeleton present in different genetic horizons is represented by gypsum, of various shapes and sizes.
|Number of pages||6|
|Journal||BOLLETTINO DELLA SOCIETA' ITALIANA DELLA SCIENZA DEL SUOLO|
|Publication status||Published - 2004|