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Remediation of Arsenic contaminated soil using malposed intercropping of Pteris vittata L. and maize
Ma, Jie1,2,3; Lei, En4; Lei, Mei1; Liu, Yanhong4; Chen, Tongbin1
2018-03-01
Source PublicationCHEMOSPHERE
ISSN0045-6535
Volume194Pages:737-744
Corresponding AuthorLei, Mei(leim@igsnrr.ac.cn)
AbstractIntercropping of arsenic (As) hyperaccumulator and cash crops during remediation of contaminated soil has been applied in farmland remediation project. However, little is known about the fate of As fractions in the soil profile and As uptake within the intercropping plants under field condition. In this study, As removal, uptake, and translocation were investigated within an intercropping system of Pteris vittata L. (P. vittata) and maize (Zea mays). Results indicated that the concentration of As associated with amorphous Fe (hydr)oxides in the 10-20 cm soil layer was significantly lower under malposed intercropping of P. vittata and maize, and As accumulation in P. vittata and biomass of P. vittata were simultaneously higher under malposed intercropping than under coordinate intercropping, leading to a 2.4 times higher rate of As removal. Although maize roots absorbed over 13.4 mg kg(-1) As and maize leaves and flowers accumulated over 21.5 mg kg(-1) As (translocation factor higher than 1), grains produced in all inter cropping modes accumulated lower levels of As, satisfying the standard for human consumption. Our results suggested that malposed intercropping of a hyperaccumulator and a low-accumulation cash crop was an ideal planting pattern for As remediation in soil. Furthermore, timely harvest of P. vittata, agronomic strategies during remediation, and appropriate management of the above ground parts of P. vittata and high-As tissues of cash crops may further improve remediation efficiency. (C) 2017 Published by Elsevier Ltd.
KeywordRemediation Arsenic fraction Intercropping Pteris vittata L Maize
DOI10.1016/j.chemosphere.2017.11.135
WOS KeywordSEQUENTIAL EXTRACTION PROCEDURE ; PHYTOREMEDIATION TECHNOLOGY ; SAFE UTILIZATION ; POLLUTED SOILS ; ACCUMULATION ; PLANTS ; MINE ; SPECIATION ; TOXICITY ; METALS
Indexed BySCI
Language英语
Funding ProjectScience and Technology Service Network Initiative Project of Chinese Academy of Sciences[KFJ-STS-ZDTP-007] ; China Postdoctoral Science Foundation[2017M610532]
Funding OrganizationScience and Technology Service Network Initiative Project of Chinese Academy of Sciences ; China Postdoctoral Science Foundation
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000423890700081
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/56957
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLei, Mei
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Minist Agr, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China
3.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China
4.Honghe Univ, Sch Life Sci & Technol, Mengzi 661100, Peoples R China
Recommended Citation
GB/T 7714
Ma, Jie,Lei, En,Lei, Mei,et al. Remediation of Arsenic contaminated soil using malposed intercropping of Pteris vittata L. and maize[J]. CHEMOSPHERE,2018,194:737-744.
APA Ma, Jie,Lei, En,Lei, Mei,Liu, Yanhong,&Chen, Tongbin.(2018).Remediation of Arsenic contaminated soil using malposed intercropping of Pteris vittata L. and maize.CHEMOSPHERE,194,737-744.
MLA Ma, Jie,et al."Remediation of Arsenic contaminated soil using malposed intercropping of Pteris vittata L. and maize".CHEMOSPHERE 194(2018):737-744.
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