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The fine sand fraction (50–250 μm) of Mediterranean soils from southern Spain provides valuable information on soil genesis and the origin of their parent materials. This study considers the whole fine sand and heavy fine sand (ρ > 2.82 g cm−3) of Luvisols, Calcisols and Fluvisols, which form a chronosequence (ages from 600 to 0.3 ka) of the River Guadalquivir terrace system. Advanced techniques...
During field soil surveys various soil morphological properties such as texture, structure, consistence, cutans and color are evaluated. However, these soil properties are described using nominal or ordinal variables. This makes it difficult to assess these variables objectively using numerical methods such as clustering or chronofunctions. Recently, principal component analysis (PCA) with non-linear...
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