中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Mitigation of mercury accumulation in rice using rice hull-derived biochar as soil amendment: A field investigation

文献类型:期刊论文

作者Ying Xing;  Jianxu Wang;  Sabry M. Shaheen;   Xinbin Feng;  Zhuo Chen;   Hua Zhang;  Jörg Rinklebe
刊名Journal of Hazardous Materials
出版日期2020
卷号388页码:1-10
关键词Rice Hg Accumulation biochar Application sulfur Fractionation risk Management field Trial
英文摘要

Effect of application of 24 t ha−1 and 72 t ha-1 rice hull-derived biochar (RHB) on total Hg (THg) and methylHg (MeHg) immobilization and their accumulations by rice plants were studied in a field experiment (Wanshan Hg mine, China). The addition of two doses of RHB significantly increased the biomass of rice plants, and decreased the MeHg concentration in the pore water, as compared to the control. The RHB promoted the partitioning of pore water MeHg to the soil solid phase throughout rice growing season, and pore water THg partitioning only at rice filling stage. Mercury methylation potential was weakly affected by the RHB addition to the soil. Mercury might be immobilized through binding of thiols (e.g., cysteine) presented in the RHB or in the soil induced by RHB addition. Biochar addition decreased MeHg and THg contents in the tissues of rice plants, particularly in the polished rice. We attributed the reduction of THg in the rice to the bio-dilution effect, and of MeHg content in the rice to the decreased MeHg availability in the soil by RHB addition. Results suggest that RHB might be suitable for managing Hg transfer in soil-rice plants at Hg contaminated mining regions in China and beyond.

语种英语
源URL[http://ir.gyig.ac.cn/handle/42920512-1/10530]  
专题地球化学研究所_环境地球化学国家重点实验室
作者单位1.CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, PR China
2.University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany
3.School of Chemistry and Materials Science, Guizhou Normal University, Guiyang, 550002, PR China
4.University of Sejong, Department of Environment, Energy and Geoinformatics, 98 Gunja-Dong, Guangjin-Gu, Seoul, South Korea
5.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, PR China
6.University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516, Kafr El-Sheikh, Egypt
7.King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, 21589, Jeddah, Saudi Arabia
推荐引用方式
GB/T 7714
Ying Xing;Jianxu Wang;Sabry M. Shaheen; Xinbin Feng;Zhuo Chen; Hua Zhang;Jörg Rinklebe. Mitigation of mercury accumulation in rice using rice hull-derived biochar as soil amendment: A field investigation[J]. Journal of Hazardous Materials,2020,388:1-10.
APA Ying Xing;Jianxu Wang;Sabry M. Shaheen; Xinbin Feng;Zhuo Chen; Hua Zhang;Jörg Rinklebe.(2020).Mitigation of mercury accumulation in rice using rice hull-derived biochar as soil amendment: A field investigation.Journal of Hazardous Materials,388,1-10.
MLA Ying Xing;Jianxu Wang;Sabry M. Shaheen; Xinbin Feng;Zhuo Chen; Hua Zhang;Jörg Rinklebe."Mitigation of mercury accumulation in rice using rice hull-derived biochar as soil amendment: A field investigation".Journal of Hazardous Materials 388(2020):1-10.

入库方式: OAI收割

来源:地球化学研究所

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