Interactive effect of radioactive and heavy-metal contamination on soil enzyme activity in a former uranium mine

• Autorzy: Yang G. , Dong F. , Liu M. , Nie X. , Zong M. , Peng C. , Chen H. , Wei H. , Wang P. , Zhang W.
• Języki publikacji: EN

Abstrakty

EN

Radioactivity and heavy metal toxicity of multi-metal deposits coexisting with the element uranium (U) could have long-term adverse impacts on soil biological processes and the health of soil ecosystems. Soil enzyme activities are considered bioindicators for assessing soil health. An experiment was designed to investigate invertase and ß-glucosidase activity in multi-metal deposits. Radioactivity and heavy metals were also investigated during this study. Our results showed that the invertase and ß-glucosidase activities were significantly lower in the core mining area than the control area (p<0.05). Activities of the two enzymes decreased with increasing metal concentrations and radioactivity. Cu and Zn showed significant negative effects on ß-glucosidase and invertase activities in a multi-metal deposit at the study site. A significant nonlinear relationship was recorded between soil enzyme activities, radiation dose (R² = 0.71, 0.63; p<0.05), Zn (R² = 0.34, 0.41; p<0.05) and Cu concentrations (R² = 0.46, 0.45; p<0.05). There were turning points at 1 μGy h⁻¹, 250 μg g⁻¹, and 30 μg g⁻¹ for radiation dose, Zn and Cu contents, respectively. The findings could provide more information regarding the toxic effects of radiation and heavy metals on the soil health of multi-metal deposits, which can more precisely guide environmental protection.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2018
• Tom: 27
• Numer: 3
• Opis fizyczny: p.1343-1351,fig.,ref.

Twórcy

autor

Yang G.

• School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

autor

Dong F.

• Key Laboratory of Solid Waste Treatment and Resource Recycling, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China

autor

Liu M.

• School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

autor

Nie X.

• Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory-Collaborative Innovation Center of Nuclear Wastes and Environmental Safety, Southwest University of Science and Technology, China

autor

Zong M.

• School of Earth Science and Engineering, Nanjing Univiersity, Nanjing 210023, China

autor

Peng C.

• Center of CEF/ESCER, Department of Biological Science, University of Quebec at Montreal, Montreal H3C 3P8, Canada

autor

Chen H.

• CAS Key Laboratory of Mountain Ecological Restoration and Bioresources Utilization and Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China

autor

Wei H.

• School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China

autor

Wang P.

• Key Laboratory of Solid Waste Treatment and Resource Recycling, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China

autor

Zhang W.

• Key Laboratory of Solid Waste Treatment and Resource Recycling, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China

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Identyfikatory

DOI

10.15244/pjoes/76182