Potential evaluation of different intercropping remediation modes based on remediation efficiency and economic benefits - a case study of arsenic-contaminated soil

doi:10.1080/15226514.2021.1920571

	Potential evaluation of different intercropping remediation modes based on remediation efficiency and economic benefits - a case study of arsenic-contaminated soil
	Yan, Yunxian 1,2; Yang, Jun 1,2; Guo, Yue 2; Yang, Junxing 1,2; Wan, Xiaoming 1,2; Zhao, Chen 1,2; Guo, Junmei 1,2; Chen, Tongbin 1,2
刊名	INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
	2021-05-11
页码	9
关键词	Intercropping remediation soil contamination hyperaccumulator remediation efficiency economic benefits
ISSN号	1522-6514
DOI	10.1080/15226514.2021.1920571
通讯作者	Yang, Jun(yangj@igsnrr.ac.cn)
英文摘要	Hyperaccumulator-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] .
资助项目	National Natural Science Foundation of China[41771510] ; National Key Research and Development Project of China[2018YFC1802604]
WOS关键词	PTERIS-VITTATA L. ; HYPERACCUMULATOR PLANTS ; PHYTOEXTRACTION ; PHYTOREMEDIATION ; METALS ; AVAILABILITY ; ACCUMULATION ; PHYSIOLOGY ; PROVINCE ; CROPS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000651318700001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Project of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162821]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Jun
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 2.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
推荐引用方式 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.