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标题：Accumulation of Zn, Cu, Ni and Pb in Soil and Leaf of Pinus eldarica Medw. Following Irrigation with Municipal Effluent
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作者：Azadeh Salehi ; Masoud Tabari
期刊名称：Research Journal of Environmental Sciences
印刷版ISSN：1819-3412
电子版ISSN：2152-8238
出版年度：2008
卷号：2
期号：4
页码：291-297
DOI：10.3923/rjes.2008.291.297
出版社：Academic Journals Inc., USA
摘要：In order to assess the long-term effect of effluent irrigation on heavy metals accumulation in soil and leaf, a case study was undertaken in two neighboring Pinus eldarica Medw. plantations irrigated with municipal effluent and well water (for at least 15 years) in south of Tehran. In either of both areas 16 trees were considered to collect the leaf samples. One soil profile was dug under each selected tree to take the samples in depths of 0-15, 15-30 and 30-60 cm. In laboratory, the concentration of Zn, Cu, Ni and Pb of effluent and well water, soil and leaf samples were determined. Results indicated that municipal effluent had higher concentration of Zn, Cu, Ni and Pb compared to well water. The concentrations of Zn, Ni and Pb of municipal effluent and Ni and Pb of well water were greater than the normal range. Heavy metal accumulation of soil were significantly greater in effluent-irrigated area and in depth of 0-15 cm. Pb concentration of soil irrigated with both treatments and Ni concentration of soil irrigated with municipal effluent were greater than the normal range. Zn and Cu concentrations in leaf of trees irrigated with effluent were significantly greater than those in well water. Neither Ni nor Pb was detected in leaves. In general, there was not elevation of heavy metal in leaves.