A potential microbiological approach to the evaluation of earthquake-induced soil liquefaction

iScience

卷:24

Sheng Hao Lai¹  Yi Chiung Hsu¹  Ying Ting Chao¹  Mei Hsun Chang²  Chun Chi Chen²  Wei Feng Lee²  Jing Wen Chen² 

[1] Department of Biomedical Sciences and Engineering, National Central University, Taoyuan City, Taiwan;

[2] Department of Civil Engineering, National Cheng Kung University, Tainan City, Taiwan;

关键词: Earth sciences;    Soil science;    Biogeochemistry;    Seismology;    Microbiology;   

DOI  :  

来源: DOAJ

【 摘 要 】

Summary: Earthquakes occur thousands of times every day around the world. They are naturally destructive seismic events and often result in soil liquefaction. Soil microbiota plays a vital role in soil environments and may serve as an effective indicator to assess soil liquefaction after earthquakes. This study aimed to detect the microbial community abundance and composition in soil samples of different depths. Soil samples were collected in Southern Taiwan immediately after the 2010 earthquake. Their physical characteristics were determined, and their microbial communities were analyzed through 16S amplicon sequencing. The results revealed that Nitrospirae phylum dominated in the liquefied layer. In particular, the genus HB118, dominant in the liquefied layer, was not detected at other soil depths or in the expelled liquefied soil. This finding not only provides valuable insights into changes in microbial community composition at different soil depths after earthquakes but also suggests a useful indicator for monitoring liquefied soil.

【 授权许可】

Unknown