Plumbum/Zinc accumulation in seedlings of six afforestation species cultivated in mine spoil substrate

Wu J., . and Bai S., . and Yang Y., . and Zhu X., . and Wang Y., . and Zhu T., . and Chen J., . Plumbum/Zinc accumulation in seedlings of six afforestation species cultivated in mine spoil substrate. pp. 166-175. ISSN 0128-1283

Mining activities generate spoils and effluents that are harmful to ecosystems and human health due to their extremely high toxic metal concentrations. Plants have been planted on these spoils to uptake heavy metal and to revegetate for phytoremediation. Soil obtained from Pb/Zn mine tailing areas was used to conduct a greenhouse pot experiment to compare the growth and toxic metal accumulation of six tree species for afforestation in southern China. One year growth indicated that the six species tolerated toxic metals and their accumulation differed with plant species their parts and kinds of metals. Height and biomass of Betula alnoides were significantly greater than the rest of the species. Alnus nepalensis had the highest translocation (0.86 in root and 0.69 in shoot) and bioconcentration (0.62 in root and 0.51 in shoot) factor values for Pb while Pinus yunnanensis had higher translocation and bioconcentration factor values (0.78 0.45 in root and 0.84 0.48 in shoot respectively) for Zn. Alnus nepalensis was the best candidate species for phytoremediation of Pb/Zn mine tailing areas due to its good nitrogen fixation greater translocation and bioconcentration factor values and larger biomass accumulating an average of 4.70mg Pb and 6.92mg Zn.

Full text available from: Official URL: http://www.frim.gov.my/v1/JTFSOnline/jtfs/v27n2/16...

Abstract

Mining activities generate spoils and effluents that are harmful to ecosystems and human health due to their extremely high toxic metal concentrations. Plants have been planted on these spoils to uptake heavy metal and to revegetate for phytoremediation. Soil obtained from Pb/Zn mine tailing areas was used to conduct a greenhouse pot experiment to compare the growth and toxic metal accumulation of six tree species for afforestation in southern China. One year growth indicated that the six species tolerated toxic metals and their accumulation differed with plant species their parts and kinds of metals. Height and biomass of Betula alnoides were significantly greater than the rest of the species. Alnus nepalensis had the highest translocation (0.86 in root and 0.69 in shoot) and bioconcentration (0.62 in root and 0.51 in shoot) factor values for Pb while Pinus yunnanensis had higher translocation and bioconcentration factor values (0.78 0.45 in root and 0.84 0.48 in shoot respectively) for Zn. Alnus nepalensis was the best candidate species for phytoremediation of Pb/Zn mine tailing areas due to its good nitrogen fixation greater translocation and bioconcentration factor values and larger biomass accumulating an average of 4.70mg Pb and 6.92mg Zn.

[error in script]

Item Type:	Article
AGROVOC Term:	Zinc
AGROVOC Term:	Seedlings
AGROVOC Term:	Afforestation
AGROVOC Term:	Cultivated varieties
AGROVOC Term:	mining
AGROVOC Term:	Soil substrates
AGROVOC Term:	Ecosystems
AGROVOC Term:	Health risks
AGROVOC Term:	Toxic minerals
AGROVOC Term:	Biomass
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/21511

Actions (login required)

View Item