Mitigating heavy metal accumulation into rice (Oryza sativa L.) using biochar amendment--a field experiment in Hunan, China

Environmental Science and Pollution Research International
Rui-Lun ZhengEdita Baltrėnaitė

Abstract

A field experiment was conducted to investigate the effect of bean stalk (BBC) and rice straw (RBC) biochars on the bioavailability of metal(loid)s in soil and their accumulation into rice plants. Phytoavailability of Cd was most dramatically influenced by biochars addition. Both biochars significantly decreased Cd concentrations in iron plaque (35-81 %), roots (30-75 %), shoots (43-79 %) and rice grain (26-71 %). Following biochars addition, Zinc concentrations in roots and shoots decreased by 25.0-44.1 and 19.9-44.2 %, respectively, although no significant decreases were observed in iron plaque and rice grain. Only RBC significantly reduced Pb concentrations in iron plaque (65.0 %) and roots (40.7 %). However, neither biochar significantly changed Pb concentrations in rice shoots and grain. Arsenic phytoavailability was not significantly altered by biochars addition. Calculation of hazard quotients (HQ) associated with rice consumption revealed RBC to represent a promising candidate to mitigate hazards associated with metal(loid) bioaccumulation. RBC reduced Cd HQ from a 5.5 to 1.6. A dynamic factor's way was also used to evaluate the changes in metal(loid) plant uptake process after the soil amendment with two types of bioch...Continue Reading

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Citations

Nov 5, 2015·Environmental Science and Pollution Research International·Muhammad RizwanYong Sik Ok
Mar 17, 2016·Journal of the Air & Waste Management Association·Pranas BaltrėnasJurgita Švedienė
Mar 22, 2016·Environmental Science and Pollution Research International·Muhammad RizwanYong Sik Ok
Sep 25, 2016·Environmental Science and Pollution Research International·Aparupa SenguptaRupali Datta
Jan 12, 2017·Environmental Science and Pollution Research International·Ruilun ZhengQinghai Wang
Jan 14, 2018·Environmental Science and Pollution Research International·Jun MengJianming Xu
Sep 5, 2017·Environmental Science and Pollution Research International·Linbo QianMengfang Chen
Aug 3, 2017·Environmental Science and Pollution Research International·Peng ChenGuo-Xin Sun
Mar 17, 2020·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Nobuhiko WadaDianyu Zhu
Jul 16, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sheng ChengBo Yan
Aug 13, 2017·Environmental Science and Pollution Research International·Ruilun ZhengQinghai Wang
Dec 6, 2018·Environmental Science and Pollution Research International·Edita Baltrėnaitė, Pranas Baltrėnas
Oct 29, 2017·Environmental Science and Pollution Research International·Chao XuYang-Zhu Zhang
Jun 28, 2019·Environmental Science and Pollution Research International·Dandan PanFangbai Li
Jul 1, 2017·Environmental Science and Pollution Research International·Edita BaltrėnaitėPranas Baltrėnas
Jul 12, 2020·Environmental Science and Pollution Research International·Huaidong HeHuaiqiong Zhao
Mar 17, 2020·Chemosphere·Sandeep Reddy Yanala, Krishna R Pagilla
Feb 28, 2021·Journal of Environmental Sciences (China)·Mingyue LiQingyun Yan
Aug 28, 2018·Ecotoxicology and Environmental Safety·Xu ChaoZhang Yang-Zhu
Nov 14, 2020·Environmental Science and Pollution Research International·Da LvXiangmin Zheng
Sep 24, 2021·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Susan SerfonteinOlusola O Ololade

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