文献类型：期刊文献

英文题名：A comparative study on various indicators for evaluating soil health of three biochar materials application

作者：Wang, Gehui[1];Liu, Fang[2];Tariq, Muhammad[3];Wan, Jiang[1];Liang, Weiyu[1];Zhang, Wei[1];Peng, Cheng[1];Yang, Jie[2]

机构：[1]East China Univ Sci & Technol, Sch Resource & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Acad Environm Sci, State Environm Protect Engn Ctr Urban Soil Contam, Shanghai 200233, Peoples R China;[3]Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Div Adv Nanomat, Suzhou 215123, Peoples R China

年份：2022

卷号：343

外文期刊名：JOURNAL OF CLEANER PRODUCTION

收录：;EI(收录号：20220911736924);WOS:【SCI-EXPANDED(收录号:WOS:000807372500004)】；

基金：This research was supported by the projects of the National Key Research and Development Program of China (2018YFC1800606, 2019YFC1805202) ; the National Natural Science Foundation of China (41877124, 21737005) .

语种：英文

外文关键词：Biochar materials; As/Pb; Toxic effects; Microbial community; E. fetida

摘要：The application of biochar materials in metal(loid)s-polluted soil has been widely explored, while lesser is known about their potential threats to ecological environment. The impacts of biochar, Fe3O4 supported biochar, and sulfide Fe3O4 supported biochar both in the clean and arsenic (As)/lead (Pb) contaminated soil were systematically investigated by laboratory simulation experiments. Results showed that two of them, biochar and Fe3O4 supported biochar revealed a positive role in improving soil fertility, promoting soil enzyme activities, and maintaining microbial community stability, while these positive effects were observed less by sulfide Fe3O4 supported biochar due to its special morphology, amorphous structure, surface characteristics, and more Fe release. In the contaminated soil, the bioavailability of As/Pb were significantly reduced after using these materials, which further decreased the accumulation of As and Pb in earthworms alleviating their oxidative damage. Moreover, the addition of modified biochars could promote the richness of microbial community, but further inhibited the soil enzyme activities showing joint toxicity of biochar materials and co-existing of As and Pb metal (loid)s. We believe that our systematic approach and concluding findings will open a new window for a deeper understanding of ecological risks of biochar materials and application potential in soils.