caa a22 4500 477094392 CHVBK 20180405111523.0 cr unu---uuuuu 170330e19960601xx s 000 0 eng 10.1007/BF01771132 doi (NATIONALLICENCE)springer-10.1007/BF01771132 Background levels of heavy metals in plants of different taxonomic groups from a montane rain forest in Sri Lanka [Elektronische Daten] [Ranjith Jayasekera, Matthias Rossbach] An undisturbed natural reserve area iocated in a tropical montane rain forest at about 1800 m altitude in Sri Lanka served as a study site to investigate and assess the natural background concentration levels of As, Cd, Co, Cu, Ni, Pb and Zn in plants representing different taxonomic groups (divisions) in the plant kingdom. The plants selected were: the lichen,Usnea barbata (old man's beard);Pogonatum sp. (a moss);Lycopodium selago (epiphytic lycopod);Polypodium lanceolatum (epiphytic fern);Bulbophyllum elliae (epiphytic orchid) andActinodaphne ambigua (dicotyledonous large tree). Degree of homogeneity with respect to Cd, Cu, Pb and Zn in homogenised materials of all samples were within acceptable limits, whereasPogonatum sp. showed the highest degree of homogeneity for Pb. In addition to confirming extremely low levels of heavy metals in all plant species, the survey also found that generally the primitive plants,Usnea andPogonatum appear to have a greater tendency to accumulate As, Cd, Co and Pb; in particular,U. barbata appears to be an efficient accumulator for those heavy metals, suggesting its potential use in environmental studies.Actinodaphne ambigua was found to have a specific accumulating ability for nickel. Surface cleaning of theA. ambigua leaves resulted in a substantial decrease in the foliar contents of Cd, Ni, Pb and Zn. Variations in heavy metal contents observed in different plant genera are discussed in terms of their habits and place of growth in the forest. It is anticipated that the background levels presented in this paper from a remote, unpolluted tropical ecosystem will provide useful reference data for comparative environmental studies. Chapman & Hall, 1996 epiphytes nationallicence heavy metals nationallicence lichen nationallicence montane forest nationallicence primitive plants nationallicence Sri Lanka nationallicence taxonomic groups nationallicence Jayasekera Ranjith Department of Botany, University of Kelaniya, Kelaniya, Sri Lanka aut Rossbach Matthias Institute of Applied Physical Chemistry, Research Centre Juelich, D-52425, Juelich, Germany aut Environmental Geochemistry and Health Kluwer Academic Publishers 18/2(1996-06-01), 55-62 0269-4042 18:2<55 1996 18 10653 https://doi.org/10.1007/BF01771132 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01771132 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jayasekera Ranjith Department of Botany, University of Kelaniya, Kelaniya, Sri Lanka aut NATIONALLICENCE 700 1- Rossbach Matthias Institute of Applied Physical Chemistry, Research Centre Juelich, D-52425, Juelich, Germany aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Kluwer Academic Publishers 18/2(1996-06-01), 55-62 0269-4042 18:2<55 1996 18 10653 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer