Toxic effects of two acid sulfate soils from the Dabaoshan mine on Corymbia citriodora var.variegata and Daphnia carinata

Article


Liu, Y., Lin, C., Ma, Y., Lu, W., Wu, Y., Huang, S., Zhu, L., Li, J. and Chen, A.. 2009. "Toxic effects of two acid sulfate soils from the Dabaoshan mine on Corymbia citriodora var.variegata and Daphnia carinata." Journal of Hazardous Materials. 166 (2-3), pp. 1162-1168. https://doi.org/10.1016/j.jhazmat.2008.12.017
Article Title

Toxic effects of two acid sulfate soils from the Dabaoshan mine on Corymbia citriodora var.variegata and Daphnia carinata

ERA Journal ID4682
Article CategoryArticle
AuthorsLiu, Y. (Author), Lin, C. (Author), Ma, Y. (Author), Lu, W. (Author), Wu, Y. (Author), Huang, S. (Author), Zhu, L. (Author), Li, J. (Author) and Chen, A. (Author)
Journal TitleJournal of Hazardous Materials
Journal Citation166 (2-3), pp. 1162-1168
Number of Pages7
Year2009
PublisherElsevier
Place of PublicationAmsterdam, Netherlands
ISSN0304-3894
1873-3336
Digital Object Identifier (DOI)https://doi.org/10.1016/j.jhazmat.2008.12.017
Web Address (URL)http://10.1016/j.jhazmat.2008.12.017
Abstract

Acidic, metal-stressed conditions encountered in the acid sulfate soils significantly inhibited the growth of
Corymbia citriodora var.variegata, possibly due to the reduced rate of photosynthesis and plant root activity.
However, the plant’s self-protection mechanism to counteract stress-induced cellular damage by reactive
oxygen species still functioned well even at a soil pH as low as 2.81. This may explain the high tolerance of this plant species to the extremely acidic environments. The observed phytotoxicity symptoms were not accompanied by elevated concentrations of heavy metals in the plant tissues, suggesting that heavy metal levels in plant tissue alone are not valid indications of phytotoxicity to the tested plant species. Leachates from the acid sulfate soils had strong toxicity to Daphnia carinata.Median lethal dilution factor(LDF50)was much higher for the leachate from the highly acidic acid sulfate soils (ASS) than that from
the mildly acidic ASS. Although the concentration of various metals markedly decreased with increasing number of leaching cycle, leachate toxicity to Daphnia carinata did not decrease accordingly. This suggests that levels of heavy metals and Al in the leachate are not good indicators of the mine water biotoxicity.

Keywordsacid mine drainage; ecotoxicity; Corymbia; Daphnia; acid sulphate soil; leaching; heavy metal
ANZSRC Field of Research 2020401999. Resources engineering and extractive metallurgy not elsewhere classified
410304. Environmental biotechnology diagnostics (incl. biosensors)
410601. Land capability and soil productivity
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Byline AffiliationsSouth China Agricultural University, China
Institution of OriginUniversity of Southern Queensland
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