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Bacterial community analysis of stabilized soils in proximity to an exhausted mine

Title
Bacterial community analysis of stabilized soils in proximity to an exhausted mine
Authors
Park, Jae EunLee, Byung-TaeKim, Byung-YongSon, Ahjeong
Ewha Authors
손아정
SCOPUS Author ID
손아정scopus
Issue Date
2018
Journal Title
ENVIRONMENTAL ENGINEERING RESEARCH
ISSN
1226-1025JCR Link

2005-968XJCR Link
Citation
ENVIRONMENTAL ENGINEERING RESEARCH vol. 23, no. 4, pp. 420 - 429
Keywords
Bacterial community analysisHeavy metalMethylobacterPyrosequencingSoil stabilization
Publisher
KOREAN SOC ENVIRONMENTAL ENGINEERS
Indexed
SCIE; SCOPUS; KCI WOS
Document Type
Article
Abstract
Soil stabilization is a soil remediation technique that reduces the mobility of heavy metals in soils. Although it is a well-established technique, it is nonetheless essential to perform a follow-up chemical assessment via a leaching test to evaluate the immobilization of heavy metals in the soil matrix. Unfortunately, a standard chemical assessment is not sufficient for evaluation of the biological functional state of stabilized soils slated for agricultural use. Therefore, it is useful to employ a pyrosequencing-based microbial community analysis for the purpose. In this study, a recently stabilized site in the proximity of an exhausted mine was analyzed for bacterial diversity, richness, and relative abundance as well as the effect of environmental factors. Based on the Shannon and Chao1 indices and rarefaction curves, the results showed that the stabilized layer exhibited lower bacterial diversity than control soils. The prevalence of dominant bacterial populations was examined in a hierarchical manner. Relatively high abundances of Proteobacteria and Methylobacter tundripaluilum were observed in the stabilized soil. In particular, there was substantial abundance of the Methylobacter genus, which is known for its association with heavy metal contamination. The study demonstrated the efficacy of (micro)biological assessment for aiding in the understanding and post-management of stabilized soils.
DOI
10.4491/eer.2018.040
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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