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Heavy Metal Content in Chinese Vegetable Plantation Land Soils and Related Source Analysis 预览 被引量:17

Heavy Metal Content in Chinese Vegetable Plantation Land Soils and Related Source Analysis
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摘要 根据自从 1989,出版的以前的文学,为在中国蔬菜种植园土壤的重金属上的报导数据的统计分析在这篇文章系统地被执行。这调查的目的是在土地通过客观评价系统地玷污与高质量和效率支持蔬菜生产的发展的蔬菜学习重金属内容的地位。它被结束那 Zn, Cr,当时, Cu 有相对高的集中有毒的金属的吝啬的集中,同样 Hg, Cd 是 8.03, 0.12, 0.28 mg kg ? 1,分别地与在中国蔬菜的比较地低的集中登陆。比作中国土壤质量标准 GB 15618-1995 ( 6.5 【 pH 【 7.5 ),大约 24.1 , 10.3 ,和9.2%总数件样品被 Cd 污染, Hg ,并且作为,分别地并且重金属的下降顺序作为】 Zn 】 Cu 】 Cr 】 Pb 是 Cd 】 Hg 】 。当在不同区域之中比较了时,更严肃的重金属污染在东方中国的蔬菜陆地被发现,主要污染元素是 Cd, Hg,和 Zn。在中间的区域,蔬菜种植园陆地土壤主要被弄脏由作为并且 Cd,以及由 Hg, Zn,和 Cu,到某程度。在中国的西方区域, Cd 并且当污染也在某种程度上被观察,与超过等级的很少土壤样品一起, II GB 15618-1995 铺平(6.5 【 pH 【 7.5 ) 为 Cu, Cr,和 Hg 内容。比作五个蔬菜种植园陆地模式,最高的集中作为, Cd, Hg,和 Zn 发生在 industrial/sewage 灌溉蔬菜土地,特别为有 2.36 的 Hg mg kg ? 1 平均满足,它比蔬菜陆地的另外的四种类型高是 10.5-21.1 时间。Cu 和 Cr 的最高的集中在土地玷污的温室蔬菜发生了,并且城市的蔬菜土地土壤与蔬菜种植园土地模式的另外的类型比较有最高的 Pb 内容。由在不同蔬菜陆地模式下面分析重金属内容,在蔬菜生产底的土壤在郊区区域与稍微更高的数量除了 Pb 有相对低的重金属集中,这被发现。普通蔬菜土地的土壤质量与为大多数重金属的最低集中好。在蔬菜土地的现在的利用模式下面,在中国蔬菜底土地的土� According to the previous literature published since 1989, statistical analysis for reported data on the heavy metals in Chinese vegetable plantation soils was carried out systematically in this article. The purpose of this investigation was to study the status of heavy metal content in vegetable land soils systematically through objective assessment to promote the development of vegetable production with high quality and efficiency. It is concluded that Zn, Cr, Cu had relatively high concentrations while the mean concentrations of toxic metals, As, Hg, Cd were 8.03, 0.12, 0.28 mg·kg^-1, respectively with comparatively low concentrations in Chinese vegetable land. Comparing to Clainese Soil Quality Criterion GB 15618- 1995 (6.5 〈 pH 〈 7.5), about 24.1, 10.3, and 9.2% of the total samples was contaminated by Cd, Hg, and As, respectively, and the descending order of heavy metals was Cd 〉 Hg 〉 As 〉 Zn 〉 Cu 〉 Cr 〉 Pb. When compared among different regions, the more serious heavy metal contamination was found in the vegetable land of eastern China and the main contamination elements were Cd, Hg, and Zn. In the mid region, vegetable plantation land soil was mainly polluted by As and Cd, as well as by Hg, Zn, and Cu, to some extent. In the west region of China, Cd and As contamination was also observed to some degree, along with few soil samples exceeding the grade Ⅱ level of GB 15618-1995 (6.5 〈 pH 〈 7.5) for Cu, Cr, and Hg content. Compared to the five vegetable plantation land patterns, the highest concentration of As, Cd, Hg, and Zn occurred in the industrial/sewage irrigation vegetable land, especially for Hg with 2.36 mg·kg^-1 content averagely, which is 10.5-21.1 times higher than the other four types of vegetable lands. The highest concentration of Cn and Cr occurred in the greenhouse vegetable land soils, and urban vegetable land soil had the highest Pb content in comparison with the other types of vegetable plantation land patterns. By analyzing heavy metal content under differe
作者 ZENG Xi-bai LI Lian-fang MEI Xu-rong Xi-bai ZENG[0]&Email:zengxb@cjac.org.cn; Lian-fang LI[0]; Xu-rong MEI[0]
出处 《中国农业科学:英文版》 CAS CSCD 2008年第9期 1115-1126,共12页 Agricultural Sciences in China
基金 This paper is translated from its Chinese version in Scientia Agricultura Sinica.This study was supported by the National Key Tech- nology R&D Program during the 11th Five-Year Plan period (2006BAD05B01), and the project of Standards on Heavy Metal Contamination of Farmlands (2007-2009) on Special Public Welfare Fund of Basic Scientific Research Service Spends for Research Institute/Academy supported by China Central Government.
关键词 中国 蔬菜种植地 土壤污染 水源污染 重金属污染 China, vegetable land, heavy metal, content, reason
作者简介 Correspondence ZENG Xi-bai, Professor, E-mail: zengxb@cjac.org.cn
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