Tu, Chen
; Wei, Jing; Guan, Feng; Liu, Ying; Sun, Yuhuan; Luo, Yongming发表期刊ENVIRONMENT INTERNATIONAL
ISSN0160-4120
2020-04
卷号137页码:UNSP 105576
关键词MICROBIAL COMMUNITYMETAL AVAILABILITYSTRAW BIOCHARPLANT UPTAKECADMIUMSORPTIONLEADADSORPTIONBIOACCESSIBILITYBIOAVAILABILITY
研究领域Environmental Sciences
DOI10.1016/j.envint.2020.105576
产权排序[Tu, Chen; Wei, Jing; Guan, Feng; Liu, Ying; Luo, Yongming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Guan, Feng; Sun, Yuhuan] Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266042, Peoples R China; [Luo, Yongming] Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China; [Tu, Chen; Wei, Jing; Luo, Yongming] Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
通讯作者Luo, Yongming(ymluo@issas.ac.cn)
作者部门海岸带环境过程实验室
英文摘要The application of biochar in the remediation of heavy metal contaminated soil has received increasing global attention during the past decade. Although there has been some review work on the mechanism of heavy metals stabilization by biochar, the effects and mechanisms of interaction between biochar and functional microbes such as heavy metal tolerant, adsorption and transformation microbial strains remains unclear. In this paper, maize biochar and a heavy metal-tolerant strain Pseudomonas sp. NT-2 were selected to investigate the dynamic effects and potential mechanisms of biochar and bacteria loaded biochar on the stabilization of Cd and Cu mixed contaminated soil by a 75-day pot experiment. The results showed that, compared to the single biochar amendment, the application of biochar inoculated with NT-2 strain at the rate of 5% significantly increased the soil pH at the initial stage of incubation, and followed by a slight decline to a neutral-alkaline range during the reaction. The addition of NT-2 loaded biochar could also significantly increase the proportion of residual fraction of Cd and Cu, thus reduce the proportion of exchangeable and carbonate bound species in the soil, which lead to the decreasing of plant and human bioavailability of the metal in the soil indicated by DTPA and simulated human gastric solution extraction (UBM), respectively. Finally, the application of bacterial loaded biochar also markedly enhanced soil urease and catalase activities during the later stage of the incubation, and improved soil microbial community at the end of incubation, which indicates a recovery of soil function after the metal stabilization. The research results may provide some new insights into the development of functional materials and technologies for the green and sustainable remediation of heavy metal contaminated soil by the combination of biochar and functional microorganisms.
文章类型Article
资助机构National Key R&D Program of China [2016YFE0106400, 2018YFC1801001]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41977139, 41571310]; Yantai Key Research and Development Program [2019XDHZ104]
收录类别SCI
语种英语
关键词[WOS]MICROBIAL COMMUNITY; METAL AVAILABILITY; STRAW BIOCHAR; PLANT UPTAKE; CADMIUM; SORPTION; LEAD; ADSORPTION; BIOACCESSIBILITY; BIOAVAILABILITY
研究领域[WOS]Environmental Sciences & Ecology
WOS记录号WOS:000517970800011
引用统计被引频次：63[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/25058
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China;
2.Qingdao Univ Sci & Technol, Coll Environm & Safety Engn, Qingdao 266042, Peoples R China;
3.Chinese Acad Sci, Inst Soil Sci, CAS Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Peoples R China;
4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714Tu, Chen,Wei, Jing,Guan, Feng,et al. Biochar and bacteria inoculated biochar enhanced Cd and Cu immobilization and enzymatic activity in a polluted soil[J]. ENVIRONMENT INTERNATIONAL,2020,137:UNSP 105576.
APATu, Chen,Wei, Jing,Guan, Feng,Liu, Ying,Sun, Yuhuan,&Luo, Yongming.(2020).Biochar and bacteria inoculated biochar enhanced Cd and Cu immobilization and enzymatic activity in a polluted soil.ENVIRONMENT INTERNATIONAL,137,UNSP 105576.
MLATu, Chen,et al."Biochar and bacteria inoculated biochar enhanced Cd and Cu immobilization and enzymatic activity in a polluted soil".ENVIRONMENT INTERNATIONAL 137(2020):UNSP 105576.
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