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Influencia del medio ecológico en la micromorfología de andosuelos (I. Tenerife) con especial referencia a la materia orgánica y fracción arcilla

Other TitlesEffect of the ecological environment on the micromorphology of andosols (Tenerife Island) with particular reference to organic matter and clay fraction
AuthorsFernández Caldas, E.; Benayas, J.; Alonso, Juan José
Issue Date1975
PublisherCSIC - Instituto Nacional de Edafología y Agrobiología José María Albareda
CitationAnales de Edafología y Agrobiología 34(3-4): 237-252 (1975)
AbstractWe have chosen representative Andosols(Tenerife Island) of three different ecological environments being the original fundamentally basalt. A micromorphological examination reveals the following data: Isotic plasmic fabric. Related distribution pattern does not conform to the clasic definitions. the skeleton grains are surrounded by a thin layer of plasma and often several sides of the mineral grains are bare. Some of the profiles contain illuviation cutans. Voids are very abundant. compound packing voids. interconnected vughs and planes are frequent. cracks traversing the skeleton grains are often found. Rock and soil nodules are observed. The organic matter content in generally high and the degree of humification is also high. Profiles 1 and 2 contain oligotrophous forest Mull. profile 3 has Mulllike Moder and profile 4 shows and atypical Moder. With regard to the electron microscopy methods applied, we state that the replica technique on unddisturbed samples is of greater interest than the current scanning technique given the small size of the particles which constitute Andosols.
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