Lead uptake by plant in soil-plant system at lead-zinc deposit area of western Hunan province

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	Lead uptake by plant in soil-plant system at lead-zinc deposit area of western Hunan province
	Li Hai-Rong; Wang Wu-Yi; Yang Lin-Sheng; Li Yong-Hua
	2008
英文摘要	Contents of lead in several crops as well as its uptake and distribution by paddy in typical lead-zinc deposit area of western Hunan province were studied based on field systematic sampling and laboratory analysis. The average concentration of lead in rice, maize and soy bean in the deposit was 2.4, 1.2 and 3.3 times higher than that in control area, respectively, suggesting that crops in the deposit were heavily contaminated by the element. Significant difference of the lead concentrations in crops was found among different crop species and different organs of the same crops. The average concentration of lead followed the trend: soy bean > rice > maize (among crop species), and root > haulm > seed (among organs). Paddy root exhibited strong binding and tolerant capacity to lead. Correlation analysis indicated that soil lead was main retention in paddy root, whereas the gaseous lead might be the main source for lead in the aerial part of crop. Heavy metals such as Hg, Cd as well as Pb co-enriched in crops, therefore the mechanism and health risk of the combined pollution of heavy metals in the deposit crops should be paid attention to.
出处	Huanjing Kexue/Environmental Science
卷	29 期:1 页:196-201
收录类别	EI
语种	英语
内容类型	EI期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/24793]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li Hai-Rong,Wang Wu-Yi,Yang Lin-Sheng,et al. Lead uptake by plant in soil-plant system at lead-zinc deposit area of western Hunan province. 2008.