Uranium and thorium leached from uranium mill tailing of guangdong province, China and its implication for radiological risk | |
J. Wang; J. Liu; L. Zhu; J. Y. Qi; Y. H. Chen; T. F. Xiao; S. M. Fu; C. L. Wang; J. W. Li | |
2012 | |
发表期刊 | Radiation Protection Dosimetry |
卷号 | 152期号:1-3页码:215-219 |
摘要 | Both soil nematodes and microorganisms have been shown to be sensitive bioindicators of soil recovery in metal-contaminated habitats; however, the underlying processes are poorly understood. We investigated the relationship among soil microbial community composition, nematode community structure and soil aluminum (Al) content in different vegetated aluminum-rich ecosystems. Our results demonstrated that there were greater soil bacterial, fungal and arbuscular mycorrhizal fungal biomass in Syzygium cumini plantation, greater abundance of soil nematodes in Acacia auriculiformis plantation, and greater abundance of soil predatory and herbivorous nematodes in Schima wallichii plantation. The concentration of water-soluble Al was normally greater in vegetated than non-vegetated soil. The residual Al and total Al concentrations showed a significant decrease after planting S. cumini plantation onto the shale dump. Acid extractable, reducible and oxidisable Al concentrations were greater in S. wallichii plantation. Stepwise linear regression analysis suggests the concentrations of water-soluble Al and total Al content explain the most variance associated with nematode assembly; whereas, the abundance of early-successional nematode taxa was explained mostly by soil moisture, soil organic C and total N rather than the concentrations of different forms of Al. In contrast, no significant main effects of either Al or soil physico-chemical characteristics on soil microbial biomass were observed. Our study suggests that vegetation was the primary driver on soil nematodes and microorganisms and it also could regulate the sensitivity of bio-indicator role mainly through the alteration of soil Al and physico-chemical characteristics, and S. cumini is effective for amending the Al contaminated soils. |
关键词 | Al Toxicity land Restoration nematodes plfas soil Food Web |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.gyig.ac.cn/handle/42920512-1/10955 |
专题 | 环境地球化学国家重点实验室 |
作者单位 | 1.School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, China 2.Key Laboratory of Waters Safety & Protection in the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China 3.South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou 510655, China 4.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China 5.Research Center for Environmental Science, Guangdong Provincial Academy of Environmental Science, Guangzhou 510045, China |
推荐引用方式 GB/T 7714 | J. Wang;J. Liu;L. Zhu;J. Y. Qi;Y. H. Chen;T. F. Xiao;S. M. Fu;C. L. Wang;J. W. Li. Uranium and thorium leached from uranium mill tailing of guangdong province, China and its implication for radiological risk[J]. Radiation Protection Dosimetry,2012,152(1-3):215-219. |
APA | J. Wang;J. Liu;L. Zhu;J. Y. Qi;Y. H. Chen;T. F. Xiao;S. M. Fu;C. L. Wang;J. W. Li.(2012).Uranium and thorium leached from uranium mill tailing of guangdong province, China and its implication for radiological risk.Radiation Protection Dosimetry,152(1-3),215-219. |
MLA | J. Wang;J. Liu;L. Zhu;J. Y. Qi;Y. H. Chen;T. F. Xiao;S. M. Fu;C. L. Wang;J. W. Li."Uranium and thorium leached from uranium mill tailing of guangdong province, China and its implication for radiological risk".Radiation Protection Dosimetry 152.1-3(2012):215-219. |
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