Abstract
Soil structure is the result of the elementary soil particles being bound together at certain points on their surface by cementing substances, such as organic matter (OM), iron and aluminium oxides, colloidal silica or calcium carbonate (Baver et al., 1972). The relative importance of these stabilizing agents depends on their nature and abundance in the soil. Although there is a general agreement on the fundamental role that OM, Fe and Al play in the formation and stabilization of soil aggregates, some questions deserve further research, namely, the opposing effects ascribed to OM, which sometimes increases aggregate stability (Emerson, 1983; Bartoli et al, 1992; Tarchitzky et al., 1993) and sometimes favours dispersion (Visser and Caillier, 1988), the forms of Fe and Al implicated (Arduino et al., 1989; Colombo and Torrent, 1991), the mechanisms of their aggregative effect or which of the two metals is the most efficient stabilizer (Bartoli et al., 1988).
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Arias, M., Barral, M.T., Diaz-Fierros, F. (1999). Effects of Organic Matter, Iron and Aluminium on Soil Structural Stability. In: Berthelin, J., Huang, P.M., Bollag, JM., Andreux, F. (eds) Effect of Mineral-Organic-Microorganism Interactions on Soil and Freshwater Environments. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4683-2_8
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DOI: https://doi.org/10.1007/978-1-4615-4683-2_8
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