Forest soils, sandy

Dosskey, M. G., and P. M. Bertsch. 1997. Transport of dissolved organic matter through a sandy forest soil. Soil Science Society of America Journal 61 920-927. 

Quenea, K., Largeau, C., Derenne, S., Spaccini, R., Bardoux, G., and Mariotti, A. (2006a). Molecular and isotopic study of lipids in particle size fractions of a sandy cultivated soil (Cestas cultivation sequence, southwest France) Sources, degradation, and comparison with Cestas forest soil. Org. Geochem. 37,20-44. 

Kaiser, K., Eusterhues, K., Rumpel, C., Guggenberger, G., and Kogel-Knabner, I. (2002). Stabilisation of organic matter in the subsoil of sandy, acidic forest soils. J. Plant Nutr. Soil Sci. 165,451 159. 

Quenea, K., Derenne, S., Gonzalez-Vila, F. J., Gonzalez-Perez, J. A., Mariotti, A., Largeau, C. (2006a). Double-shot pyrolysis of the non-hydrolysable organic fraction isolated from a sandy forest soils (Landes de Gascogne, South-West France)—Comparison with classical Curie-point pyrolysis. J. Anal. Appl. Pyrolysis 76, 271-279. 

It is somewhat surprising that so few Rn emanation power studies have been carried out on soils. The study by Delwiche (1958) on Rn release from "Great World Soil Groups" gives relative emanation powers for all but one soil. His results show clearly that the more highly weathered soils emanate more Rn and that the clay intervals emanate more than the silty and sandy intervals. Red podzolic, lateritic podzolic and solodic soils emanate the most and desert soils and western brown forest soils the least. Quantified emanation powers for soils and stream sediments are shown in Table 11-XII. 

Humic substances may be partly responsible for the condition of water repellancy or nonwettability that has been observed for citrus groves, burned-over areas of forest soils, and turf. In most cases repellancy has been associated with coarse-textured sandy soils. 

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