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Potential evaluation of different intercropping remediation modes based on remediation efficiency and economic benefits - a case study of arsenic-contaminated soil
Yan, Yunxian1,2; Yang, Jun1,2; Guo, Yue1; Yang, Junxing1,2; Wan, Xiaoming1,2; Zhao, Chen1,2; Guo, Junmei1,2; Chen, Tongbin1,2
2021-05-11
Source PublicationINTERNATIONAL JOURNAL OF PHYTOREMEDIATION
ISSN1522-6514
Pages9
Corresponding AuthorYang, Jun(yangj@igsnrr.ac.cn)
AbstractHyperaccumulator-cash crop intercropping remediation is a research hotspot for heavy metal contaminated farmland, but few studies evaluated its feasibility based on practice. Field experiments and survey statistics were conducted to obtain parameters of Pteris vittata-Citrus reticulata/Zea mays intercropping, and potential of intercropping remediation was evaluated based on remediation efficiency and economic benefits. The results showed that intercropping hyperaccumulator with cash crop (especially herbs) had a certain negative effect on remediation efficiency because of the influence on planting density and harvest times of hyperaccumulator; while trees could partly alleviate this effect. Until achieving the predetermined target, the net remediation cost of P. vittata-Z. mays was 18.2 $/g As, followed by P. vittata monoculture (13.3 $/g) and P. vittata-C. reticulata (8.6 $/g). Based on the proposed evaluation model, nealy half of the P. vittata intercropping modes had low economic benefits, insufficient to compensate the cost of sacrificing remediation efficiency. Based on the data from two soil remediation projects, when net income of cash crops intercropped with As-hyperaccumulators exceeded 5865/1607 $/hm(2) (herbs/trees), the economic benefit of intercropping will be relatively obvious. Therefore, cash crops should be considered from three aspects: planting conditions, spatial allocation and economic benefits. Novelty statement: This work analyzed remediation efficiency and economic benefits of intercropping remediation. An economic benefit evaluation model was established to evaluate intercropping remediation modes. The selection principle and net income threshold of cash crops in intercropping was put forward for the first time. [GRAPHICS] .
KeywordIntercropping remediation soil contamination hyperaccumulator remediation efficiency economic benefits
DOI10.1080/15226514.2021.1920571
WOS KeywordPTERIS-VITTATA L. ; HYPERACCUMULATOR PLANTS ; PHYTOEXTRACTION ; PHYTOREMEDIATION ; METALS ; AVAILABILITY ; ACCUMULATION ; PHYSIOLOGY ; PROVINCE ; CROPS
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41771510] ; National Key Research and Development Project of China[2018YFC1802604]
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Project of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000651318700001
PublisherTAYLOR & FRANCIS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/162822
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYang, Jun
Affiliation1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Yan, Yunxian,Yang, Jun,Guo, Yue,et al. Potential evaluation of different intercropping remediation modes based on remediation efficiency and economic benefits - a case study of arsenic-contaminated soil[J]. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,2021:9.
APA Yan, Yunxian.,Yang, Jun.,Guo, Yue.,Yang, Junxing.,Wan, Xiaoming.,...&Chen, Tongbin.(2021).Potential evaluation of different intercropping remediation modes based on remediation efficiency and economic benefits - a case study of arsenic-contaminated soil.INTERNATIONAL JOURNAL OF PHYTOREMEDIATION,9.
MLA Yan, Yunxian,et al."Potential evaluation of different intercropping remediation modes based on remediation efficiency and economic benefits - a case study of arsenic-contaminated soil".INTERNATIONAL JOURNAL OF PHYTOREMEDIATION (2021):9.
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