Affiliations: Institute of Applied Ecology, Chinese Academy of
Sciences, Shenyand 110016, China | Graduate School of Chineses Academy of Sciences,
Beijing 100039, China | Department of Botany, Banaras Hindu University,
Varanasi 221 005, India
Abstract: Total concentration of heavy metals (Cd, Cr, Cu, Fe, Pb, Ni, Mn and
Zn) was estimated in the redeveloping soil of mine spoil under 5-yr old
plantations of four woody species namely: Albizia lebbeck, Albizia procera,
Tectona grandis and Dendrocalamus strictus. The data recorded in the present
study were compared with other unplanted coal mine spoil colliery, which was
around to the study site and adjoining area of dry tropical forest. Among all
the heavy metals, the maximum concentration was found for Fe and minimum for
Cd. However, among all four species, total concentrations of these heavy metals
were recorded maximally in the plantation plots of T. grandis except for Fe,
while minimally in A. lebbeck except for Zn, whereas, the maximum concentration
of Fe and Zn was in the plantation plots of D. strictus and A. procera.
Statistical analysis revealed significant differences due to species for all
the heavy metals except Cu. Among four species, A. lebbeck, A. procera and D.
strictus showed more efficient for reducing heavy metal concentrations whereas
T. grandis was not more effective to reduce heavy metal concentrations in
redeveloping soil of mine spoil.