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Revista chilena de historia natural

Print version ISSN 0716-078X

Abstract

DELGADO, LUISA  and  SEREY, ITALO. Copper distribution in Mediterranean forest ecosystems. Rev. chil. hist. nat. [online]. 2002, vol.75, n.3, pp.557-565. ISSN 0716-078X.  http://dx.doi.org/10.4067/S0716-078X2002000300007.

We have analyzed the distribution of copper concentrations, and the effects of anthropogenic inputs, in the components of two forest ecosystems using a comparative approach. Ecosystem components were defined using a process-functional conceptual model. Biotic components corresponded to the morphological structures of trees, the abiotic components to the soil horizons. We chose two areas that differed on the absence (reference ecosystem) and presence (perturbed ecosystem) of an anthopogenic copper source (the Ventanas-Maitencillo Refinery). Results show that the anthropogenic copper is mostly retained in the partially decomposed matter, and that the biotic components of the perturbed ecosystem show higher that normal copper concentrations. We discuss the controlling variables of the intrasystemic copper cycle in forest ecosystems

Keywords : process-functional approach; comparative study; copper; forest ecosystems.

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