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当前位置: 首页 > 文章 > 金昌市市郊农田土壤-小麦系统Cu、Zn、Ni行为特性 西北农业学报 2008,17 (6) 298-302
Position: Home > Articles > Behavior of Heavy Metals(Cu,Zn,Ni) in Soil-wheat System of the Suburb in Jinchang Acta Agriculturae Boreali-occidentalis Sinica 2008,17 (6) 298-302

金昌市市郊农田土壤-小麦系统Cu、Zn、Ni行为特性

作  者：
李媛;南忠仁;刘晓文;王胜利;丁海霞
单  位：
兰州大学资源环境学院西部环境教育部重点实验室
关键词：
金昌;市郊农田;土壤-小麦系统;行为特性
摘  要：
以干旱区典型矿业城市——金昌市市郊农田和小麦作为研究对象,考察重金属元素(Cu、Zn、Ni)在土壤-小麦系统中的富集及迁移特征。结果表明:①研究区域农田土壤均有一定程度重金属积累;其中Ni积累最为严重,其平均质量分数超过土壤环境质量三级标准,其次是Cu,其平均质量分数超过土壤环境质量二级标准,而元素Zn的积累不显著;②小麦各组织(籽粒、麦壳、麦叶、茎秆、根须)中也有不同程度的重金属积累,其中元素Ni、Cu易在小麦根部积累,元素Zn易在小麦籽粒中积累;部分样品的籽粒中Cu含量超过中国食物卫生标准,超标率为18.18%,所有样品的Zn含量均未超出中国食品卫生标准,Ni在所有样品籽粒中的含量均超过人造奶油卫生标准。③不同元素在小麦体内迁移能力为Zn>Cu>Ni。
译  名：
Behavior of Heavy Metals(Cu,Zn,Ni) in Soil-wheat System of the Suburb in Jinchang
作  者：
LI Yuan,NAN Zhong-ren,LIU Xiao-wen,WANG Sheng-li and DING Hai-xia(National Laboratory of Western China's Environmental System & College of Resource and Environment Sciences,Lanzhou University,Lanzhou 730000,China)
关键词：
Jinchang;Suburb farmland;Soil-wheat system;Behavior
摘  要：
The behaviors of selected heavy metals(Cu,Zn and Ni) in wheat grown in the land of Jinchang were discussed through ten pairs samples both of soils and wheat.The paper obtained the following results:①Soil pollution in the research region was serious.Cu and Ni were more serious than Zn and their content in soil were far beyond grade Ⅱof the national standard of soil quality in China.②There was a significant difference in accumulation of same element in different part of wheat.The contents of Cu in some seeds were beyond the national hygienic limits for food in China.the contents of Zn in all the sample seeds were below the national hygienic limits for food in China.However,the contents of Ni in all the sample seeds were beyond the national hygienic limits for artificial cream in China.③The transfer ability of different element in wheat was Zn>Cu>Ni.

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