Enhanced iron(III) reduction following amendment of paddy soils with biochar and glucose modified biochar

doi:10.1007/s11356-016-8081-3

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	Enhanced iron(III) reduction following amendment of paddy soils with biochar and glucose modified biochar
	Mi, Nana 2; Qu, D (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China.; Qu, D (reprint author), Northwest A&F Univ, Coll Nat Resources & Environm, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China.; Li, Lina 1,2; Jia, Rong 1,2; Qu, Dong 1,2
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2018
卷号	25 期号:1 页码:91-103
关键词	Iron(Iii) Reduction Biochar Glucose Adsorption Dissolved Organic Matter Paddy Soil
ISSN号	0944-1344
DOI	10.1007/s11356-016-8081-3
文献子类	Article
英文摘要	Although biochar application to paddy fields has been widely studied, its effects on Fe(III) reduction have not yet been investigated. Paddy soil slurry and soil microbial inoculation incubation were conducted with unmodified biochar (UMB) or glucose-modified biochar (GMB) additions at different particle sizes. The Fe(II) concentration and pH value were determined regularly, and Fe(III) reducing capacity (FeRC) was evaluated by modeling. Fe(III) reduction potential (a) was increased by 0-1.96 mg g(-1) in response to UMBs addition, and a more remarkable increase in a was related to the decrease of particle size. The dissolved organic carbon of UMBs was responsible for the majority of the biochar reducing capacity. UMBs addition increased the contribution of free Fe and nitrate nitrogen to FeRC, while it decreased that of available phosphorus. Moreover, GMBs led to greater promotion of FeRC than the corresponding UMBs, with an increase in a of 2.9-16% in soil slurry and reduction rate of 13-35% in microbial inoculation incubation. The maximum Fe(III) reduction rate (V-max) with GMBs addition was faster or invariable than UMBs, while the time to V-max (T (Vmax)) was shorter or stable. The effect of GMBs on Fe(III) reduction was less sensitive as GMB particle size increased. Compared with UMBs addition, pH declined remarkably in response to GMBs. These findings suggest that GMBs can effectively stimulate Fe(III) reduction in paddy fields, while simultaneously alleviating the pH increase usually caused by pristine biochar application.
学科主题	Environmental Sciences
出版地	TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000419608400012
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/7857]
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Qu, D (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China.; Qu, D (reprint author), Northwest A&F Univ, Coll Nat Resources & Environm, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China 2.Northwest A&F Univ, Coll Nat Resources & Environm, 3 Taicheng Rd, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Mi, Nana,Qu, D ,Qu, D ,et al. Enhanced iron(III) reduction following amendment of paddy soils with biochar and glucose modified biochar[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(1):91-103.
APA	Mi, Nana,Qu, D ,Qu, D ,Li, Lina,Jia, Rong,&Qu, Dong.(2018).Enhanced iron(III) reduction following amendment of paddy soils with biochar and glucose modified biochar.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(1),91-103.
MLA	Mi, Nana,et al."Enhanced iron(III) reduction following amendment of paddy soils with biochar and glucose modified biochar".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.1(2018):91-103.