中国科学院地理科学与资源研究所机构知识库(IGSNRR OpenIR): Potential of arsenate-reducing bacterial inoculants to enhance field-scale remediation of arsenic contaminated soils by Pteris vittata L
Potential of arsenate-reducing bacterial inoculants to enhance field-scale remediation of arsenic contaminated soils by Pteris vittata L
Zhu, Ganghui1,4; Liu, Weijiang1; Wen, Yi1; Liao, Xiaoyong2 ; Sun, Lu3
Corresponding Author Liao, Xiaoyong(liaoxy@igsnrr.ac.cn) ; Sun, Lu(sunl@cigem.cn)
Abstract The effects of arsenate-reducing bacterial inoculants (C13, F2, F2-As and compound microbial inoculant) on the remediation of arsenic (As) contaminated soil by Pteris vittata L. were studied in field experiments. The results showed that the application of F2, F2-As and the compound microbial inoculant significantly promoted plant growth, increased the As accumulation of P. vittata, and improved soil As removal efficiency. When compared with the uninoculated treatment, the frond biomass and As accumulation of P. vittata increased by 14.89% -50.98% and26.83%-54.26%, respectively, and the As removal rate increased by 0.55%-3.82%. The combination of the F2-As inoculant and P. vittata showed the highest remediation efficiency with the As removal rate reaching 6.66% during the 3-month experimental period. Application of arsenate-reducing bacterial inoculants increased the dissolved organic carbon content and available As content in rhizosphere soil of P. vittata by 15.67%-20.39% and 22.49%-44.09%, respectively, indicating that arsenate-reducing bacterial inoculants could modify As bioavailability and therefore might be beneficial for plant As accumulation. The results reveal that arsenate-reducing bacterial inoculants can improve the remediation efficiency of P. vittata, and can be exploited as a promising strategy for As contamination remediation.
Keyword Arsenic contamination Arsenate-reducing bacterial inoculants Pteris vittata L Phytoextraction Remediation efficiency Field scale
WOS Keyword RESISTANT ENDOPHYTIC BACTERIA ; FERN ; PHYTOREMEDIATION ; ACCUMULATION ; RHIZOSPHERE ; REMOVAL ; METALS
Funding Project Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China[2015FY111300] ; National Key Research and Development Program of China[2017YFD0800900] ; National Natural Science Foundation of China[41501351]
Funding Organization Program of National Science and Technology Basic Works of the Ministry of Science and Technology of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China
Corresponding Author Liao, Xiaoyong; Sun, Lu
Affiliation 1.Minist Ecol & Environm, Tech Ctr Soil Agr & Rural Ecol & Environm, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Land Contaminat Assessment & Remediat Lab, 11A Datun Rd Anwai, Beijing 100101, Peoples R China
3.China Geol Environm Monitoring Inst, 20 Dahuisi Rd, Beijing 100081, Peoples R China
GB/T 7714 Zhu, Ganghui,Liu, Weijiang,Wen, Yi,et al. Potential of arsenate-reducing bacterial inoculants to enhance field-scale remediation of arsenic contaminated soils by Pteris vittata L[J]. ECOLOGICAL ENGINEERING,2021,169:7.
APA Zhu, Ganghui,Liu, Weijiang,Wen, Yi,Liao, Xiaoyong,&Sun, Lu.(2021).Potential of arsenate-reducing bacterial inoculants to enhance field-scale remediation of arsenic contaminated soils by Pteris vittata L.ECOLOGICAL ENGINEERING,169,7.
MLA Zhu, Ganghui,et al."Potential of arsenate-reducing bacterial inoculants to enhance field-scale remediation of arsenic contaminated soils by Pteris vittata L".ECOLOGICAL ENGINEERING 169(2021):7.
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