Taxonomic characteristics in accumulating cobalt and nickel in the temperate forest vegetation of central japan

Abstract

Taxonomic characteristics in accumulating Co and Ni was investigated with 60 plant species (37 genera, 27 families) grown on granite derived soils containing slightly low level of;'available Co. Considerable variations in Co and Ni content were observed among plant ISpCcies with small differences with regard to sampling sites. Exceptionally high Co content J25 ppm on"D.W. basis) was found in the leaves of Clethra barbinervis. The value was about '48 tlmes higher than the lowest Co content species. Reasonably high Co content was found with some species in genera: Hydrangea and Viburunum. Ni was highly accumulated in the leaves of Sasa borealis (16 ppm) and in fruits of Clethra barbinervis (65 ppm). tOther Nirich species were especially found in genera: Struthiopteris, Hydrangea. Stewartia. Clethra, and Symplocos. High positive correlation (PO.OI) was found between th- concentration of Co and Ni in plant species. © 1980 Taylor & Francis Group, LLC.