Safe utilization of heavy-metal-contaminated farmland by mulberry tree cultivation and silk production

doi:10.1016/j.scitotenv.2017.05.150

	Safe utilization of heavy-metal-contaminated farmland by mulberry tree cultivation and silk production
	Wan, Xiaoming; Lei, Mei; Chen, Tongbin; Tan, Yongbi; Yang, Junxing
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017-12-01
卷号	599 页码:1867-1873
关键词	Heavy metal Mulberry tree Phytomanagement Risk assessment Silkworm
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2017.05.150
通讯作者	Lei, Mei(leim@igsnrr.ac.cn)
英文摘要	Heavy-metal-contaminated soil threatens human health and environmental safety. Complete remediation of contaminated soil is expensive; therefore, phytomanagement has emerged as a cost-effective alternative. The current study investigated mulberry tree (Moro alba) plantation, silkworm cultivation, and silk production as phytomanagement options. Results defined the safety of planting mulberry trees in soils with lead (Pb) and arsenic (As) concentrations lower than 369 and 180 mg kg(-1), respectively. Silkworms fed with mulberry leaves collected from slightly contaminated soil exhibited productive growth and normal silk production. The silk, silkworm chrysalis, and silkworm fecal matter reached the national standards for textiles, feed, and agricultural sludge, respectively. Based on risk assessment, planting mulberry trees instead of rice significantly decreased the human health risk from contaminated soil. The total carcinogenic risk (Risk(d)) and noncarcinogenic risk (HQ(d)) derived from mulberry tree plantation and textile production were 2.4 x 10(-8) and 6.7 x 10(-5), respectively, whereas those derived from rice plantation and ingestion were 0.44 and 18.4, respectively. Cost-benefit analysis showed that a mulberry tree plantation can yield $25,675 for every 1 ha soil, whereas a rice plantation can yield $8409 for the same area. Moreover, phytoextraction requires $50,000-$150,000 to remediate 1 ha of soil. Therefore, constructing a mulberry tree plantation with silkworm culture and silk production is a safe means to utilize slightly contaminated soil. (C) 2017 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41301547] ; Program for Bingwei Excellent Talents in the Institute of Geographic Sciences and Natural Resources Research, CAS ; Youth Innovation Promotion Association of Chinese Academy of Sciences
WOS关键词	PTERIS-VITTATA L. ; BOMBYX-MORI L. ; RISK-ASSESSMENT ; TRACE-ELEMENTS ; HUMAN EXPOSURE ; SOIL ; CHINA ; PHYTOMANAGEMENT ; DETOXIFICATION ; ACCUMULATION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000405253500080
资助机构	National Natural Science Foundation of China ; Program for Bingwei Excellent Talents in the Institute of Geographic Sciences and Natural Resources Research, CAS ; Youth Innovation Promotion Association of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/62840]
专题	中国科学院地理科学与资源研究所
通讯作者	Lei, Mei
作者单位	Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Wan, Xiaoming,Lei, Mei,Chen, Tongbin,et al. Safe utilization of heavy-metal-contaminated farmland by mulberry tree cultivation and silk production[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017,599:1867-1873.
APA	Wan, Xiaoming,Lei, Mei,Chen, Tongbin,Tan, Yongbi,&Yang, Junxing.(2017).Safe utilization of heavy-metal-contaminated farmland by mulberry tree cultivation and silk production.SCIENCE OF THE TOTAL ENVIRONMENT,599,1867-1873.
MLA	Wan, Xiaoming,et al."Safe utilization of heavy-metal-contaminated farmland by mulberry tree cultivation and silk production".SCIENCE OF THE TOTAL ENVIRONMENT 599(2017):1867-1873.