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Effects of simulated Cd deposition on soil Cd availability, microbial response, and crop Cd uptake in the passivation-remediation process of Cd-contaminated purple soil

文献类型：期刊论文

作者Cui, Jian6,7,8,9; Wang, Wenqiang5; Peng, Ying4; Zhou, Fengwu3; He, Dongyi5,7; Wang, Jingjing6; Chang, Yajun8,9; Yang, John2; Zhou, Jing6; Wang, Wei8,9
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2019-09-15
卷号683页码:782-792
ISSN号0048-9697
关键词Atmospheric Cd deposition Soil Cd fraction Soil microbial property Crop Cd uptake Path-coefficient analysis
DOI10.1016/j.scitotenv.2019.05.292
通讯作者Cui, Jian(cuijian@cigit.ac.cn) ; Zhou, Jing(zhoujing@issas.ac.cn)
英文摘要Atmospheric deposition of heavy metals such as Cd is a threat to ecosystems and food safety. Our knowledge is still limited about the effectiveness of remediation process for Cd-contaminated agro-soils under atmospheric Cd deposition. In this study, eight soil amendments were used in a Cd-contaminated purple soil to investigate their impacts on soil Cd availability, microbial response, and Cd uptake by mustard and corn plants via simulating the atmospheric Cd deposition under laboratory incubation and greenhouse conditions. Results showed that the simulated atmospheric Cd deposition increased the soil high-risk Cd (HR, exchangeable and carbonate Cd) and decreased soil medium-risk Cd fraction (MR, bound to Fe/Mn oxide and organic Cd), and the largest direct effects on crop Cd uptakes were 0.94 and 0.66 for mustard and corn based on the path-coefficient analysis, respectively. Generally, Cd deposition led to decreasing soil microbial biomass carbon, populations of bacteria, fungi and actinomycetes, and enzyme activities of urease, catalase, sucrase, and acid phosphatase whereas increasing soil microbial biomass nitrogen. Compared with control and lime treatments, an organic-inorganic combined preparation (OCP) appeared to be effective for remediation of the Cd-contaminated purple soil due to its potential to increase the HR-Cd and reduce both MR-Cd and crop Cd uptake, as accompanied by its neutral effects on soil bacterial alpha diversity and community structure. Results also indicated that application of nitrogen fertilizers should be considered for remediation of the Cd-contaminated soils as nitrogen inputs were demonstrated to promote soil health under elevated Cd condition. (C) 2019 Elsevier B.V. All rights reserved.
资助项目National Natural Science Foundation of China[41571461] ; Chongqing Science & Technology Commission[cstc2017shms-xdny80088] ; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000471657600079
源URL[http://119.78.100.138/handle/2HOD01W0/8200]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Cui, Jian; Zhou, Jing
作者单位1.Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310010, Zhejiang, Peoples R China
2.Lincoln Univ Missouri, Dept Agr & Environm Sci, Jefferson, AR 65201 USA
3.Nanjing Normal Univ, Coll Geog Sci, Nanjing 210023, Jiangsu, Peoples R China
4.Nanjing Xiaozhuang Univ, Sch Environm Sci, Nanjing 211171, Jiangsu, Peoples R China
5.Southwest Univ, Coll Resources & Environm, Chongqing 400715, Peoples R China
6.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China
7.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Ctr Atmospher Environm Res, Chongqing 400714, Peoples R China
8.Chinese Acad Sci, Nanjing Bot Garden, Mem Sun Yat Sen, Nanjing 210014, Jiangsu, Peoples R China
9.Inst Bot, Nanjing 210014, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Cui, Jian,Wang, Wenqiang,Peng, Ying,et al. Effects of simulated Cd deposition on soil Cd availability, microbial response, and crop Cd uptake in the passivation-remediation process of Cd-contaminated purple soil[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,683:782-792.
APA Cui, Jian.,Wang, Wenqiang.,Peng, Ying.,Zhou, Fengwu.,He, Dongyi.,...&Zhao, Hongting.(2019).Effects of simulated Cd deposition on soil Cd availability, microbial response, and crop Cd uptake in the passivation-remediation process of Cd-contaminated purple soil.SCIENCE OF THE TOTAL ENVIRONMENT,683,782-792.
MLA Cui, Jian,et al."Effects of simulated Cd deposition on soil Cd availability, microbial response, and crop Cd uptake in the passivation-remediation process of Cd-contaminated purple soil".SCIENCE OF THE TOTAL ENVIRONMENT 683(2019):782-792.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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