The effect of straw-returning on antimony and arsenic volatilization from paddy soil and accumulation in rice grains

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	The effect of straw-returning on antimony and arsenic volatilization from paddy soil and accumulation in rice grains
	Yan, HuiJun; Wang, XueDong; Yang, YuPing; Duan, GuiLan; Zhang, HongMei; Cheng, WangDa
刊名	ENVIRONMENTAL POLLUTION
	2020-08
卷号	263 页码:1-14
关键词	Straw-returning Rice Paddy soil Antimony Arsenic Volatilization
ISSN号	0269-7491
英文摘要	Pollution by antimony (Sb) and arsenic (As) in soil can pose a great threat to human health. Straw-returning is widely applied to paddy fields for improving and remediating soil. A pot experiment was conducted to investigate the effect of straw-returning on Sb and As transformation and translocation in a soilerice system. In this study, Sb and As co-contaminated soil was thoroughly mixed with different proportions (0, 0.5, 1, and 2%) of straw and used for growing rice plants through the entire growing stage in a pot experiment and 4 weeks in a microcosm experiment. The straw application significantly increased Sb and As mobility. The concentrations of total Sb and As in soil-pore water increased after the application of straw in most growing stages. The Sb volatilization in the pot and microcosm experiments was also stimulated by straw application. With the high dose of straw application (2%), the concentration of Sb in brown grain was reduced by 72% compared with the control, but As concentrations increased by around 77%. These findings provide a new perspective in that straw-returning could affect the behavior of both Sb and As in soil and reduce the Sb accumulation in brown grain and some guidance in the use of straw-returning in Sb-contaminated paddy soil. (c) 2020 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44480]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Yan, HuiJun,Wang, XueDong,Yang, YuPing,et al. The effect of straw-returning on antimony and arsenic volatilization from paddy soil and accumulation in rice grains[J]. ENVIRONMENTAL POLLUTION,2020,263:1-14.
APA	Yan, HuiJun,Wang, XueDong,Yang, YuPing,Duan, GuiLan,Zhang, HongMei,&Cheng, WangDa.(2020).The effect of straw-returning on antimony and arsenic volatilization from paddy soil and accumulation in rice grains.ENVIRONMENTAL POLLUTION,263,1-14.
MLA	Yan, HuiJun,et al."The effect of straw-returning on antimony and arsenic volatilization from paddy soil and accumulation in rice grains".ENVIRONMENTAL POLLUTION 263(2020):1-14.