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 | |
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 |
2019-09-15 | |
卷号 | 683页码:782-792 |
关键词 | Atmospheric Cd deposition Soil Cd fraction Soil microbial property Crop Cd uptake Path-coefficient analysis |
ISSN号 | 0048-9697 |
DOI | 10.1016/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 |
内容类型 | 期刊论文 |
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. |
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