Edafología. Volumen 7-3. Septiembre 2000. pág 185-195.

 

FRACCIONAMIENTO DE ALUMINIO EN SUELOS DE GALICIA BAJO DISTINTAS ESPECIES FORESTALES

ESPERANZA ÁLVAREZRODRÍGUEZ, CARMEN MONTERROSO MARTÍNEZ y MARÍA L. FERNÁNDEZ MARCOS

Departamento de Edafología y Química Agrícola. Escuela Politécnica Superior. Universidad de Santiago de Compostela. 27002 Lugo

 

Abstract

Aluminium extracted by acid oxalate, pyrophosphate, CuCl2 and NH4Cl, as well as total solution aluminium, were studied in soils from the province of Lugo (Galicia, Spain). Soils, developed from different parent materials (granodiorite, shale and limestone), differ also in type of vegetation (oak, pine and eucalypt) and degree of evolution. Soils developed from limestone, highly developed and acid, showed the highest contents of all forms of non-crystalline and organically bound aluminium. The tree species affected significantly the contents of the most labile aluminium forms (exchange and solution aluminium), which were highest in soils developed from limestone and bearing pine vegetation.

Key words: aluminium, organic matter, vegetation

 

 

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