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Aridisols of Spain

AutorHerrero Isern, Juan ; Porta, J.
Fecha de publicaciónmar-1991
EditorSoil Conservation Service
Soil Management Support Services
CitaciónHerrero J, Porta J. Aridisols of Spain. In: Kimble JM (ed.). Proceedings of the Sixth International Soil Correlation Meeting (VI ISCOM): Characterization, Classification, and Utilization of Cold Aridisols and Vertisols: Montana, Idaho, and Wyoming, United States, and Saskatchewan, Canada: August 6-18, 1989, March, 1991. Pp.: 61-66. USDA.CCS ; USAID (1991)
Sixth International Soil Correlation Meeting (VI ISCOM) (August 6-18, 1989)
ResumenThis paper reviews the distribution and classification of Spanish Aridisols and discusses some taxonomic problems and major management practices. Little literature is available about Spanish Aridisols. Most of the information contained in this Daper comes from soil maps and from the authors unpublished data. The discussion covers the update of Soil Taxonomy, the unsuitability of Newhall's method for some Spanish Mediterranean areas, and the taxonomic status of the gypsiferous soils. Many of the soils classified as Aridisols (S.S.S., 1975) are now distributed into several Orders because the EC criterion has been dropped at this hierarchic level. Recently, a new method for soil moisture regime calculation has been developed in Spain. This method improves the delineation of the aridic regions. Micromorphology provides a better knowledge of hypsiferous soils, and two kinds of gypsic horizons have been identified. Apart from marginal uses. the management of Spanish Aridisols is based on water supply and/or water saving and on taking advantage of early cropping. The following conclusions can be made: (i) the new model of soil moisture regime calculations can be applied to the presumed aridic areas of Spain and calibrated with soil moisture measurements in the field, (ii) the inclusion of gypsiferous soils into three Orders disagees with their distinct morphology and behavior, (iii) refinement in the gypsic horizon definition is needed to link microscopic features and field criteria, and (iv) both old and new management practices in Aridisols must be reported in detail for improvement, the adaptation of new technologies, and extension of management practices to new areas.
Descripción6 Pags.- 2 Tabls.
URIhttp://hdl.handle.net/10261/141039
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