不同产地宁夏枸杞土壤和果实中重金属含量比较研究  

Comparative Study on Heavy Metal Elements in Soil and Fruit of Lycium bararumL.in Different Regions

作　　者：齐国亮[1] 郑国琦[1] 张磊[1] 王俊[1] 王彩艳[2] 张艳[2] 

机构地区：[1]宁夏大学生命科学学院,宁夏银川750021 [2]宁夏农林科学院农产品质监中心,宁夏银川750002

出　　处：《北方园艺》2014年第15期161-164,共4页Northern Horticulture

基　　金：国家科技支撑计划资助项目(2009BAI72B02;2013BAC02B03-02)

摘　　要：为了研究土壤中重金属含量对枸杞果实重金属含量的影响,采用电感耦合等离子光谱-质谱(ICP-MS)检测法,对全国6个宁夏枸杞主产区的土壤和果实中10种重金属元素(Pb、Cd、Cr、As、Ni、Sr、Li、Y、La、Co)进行测定和比较。结果表明:6个主产区土壤重金属含量存在一定的差异;其中,新疆产区的Cd、Cr、As、Li、Ni、Co、Sr和Y,宁夏产区的Pb和La,河北产区的Pb和La含量相对较高。6个主产区枸杞果实中Pb、As、Ni含量差异不显著,其它重金属元素含量差异显著;其中,宁夏产区果实的Cd和Sr,内蒙古和青海产区果实的Cr,甘肃产区果实的Li,河北和青海产区果实的La、Co和Y含量相对较高。果实中Cd和Sr含量分别与土壤中Pb、La、Li和Li、La呈显著正相关;果实中Y和La的积累分别与果实Co之间的积累具有一定协同作用。总体来看,不同产区土壤均适宜种植宁夏枸杞,枸杞中金属元素含量均未超出国家药材标准。To explore the effect of the content of soil heavy metal elements on the fruit of L. Bararurn,lO kinds of heavy metal elements in soil and fruits of Lycium barbarum L. from six main producing areas in China were measured and compared by the method of ICP-MS. The results showed that the contents of heavy metal elements in soil showed significant difference among six areas; The contents of Cd, Cr, As, Li, Ni, Co, Sr and Y were higher in Xinjiang, the contents of Pb and La were higher in Ningxia,and the contents of Pb and La were higher in Hebei. The contents of Pb, As,Ni in fruit of L. Bararum in six areas were not significant difference, and significant difference among other heavy metal elements. The contents of Cd and Sr infrait were higher in Ningxia,the contents of Cr infrait were higher in Inner Mongolia and Qinghai,the contents of Li infrait were higher in Gansu, and the contents of La,Co and Y infrait were higher in Hebei and Qinghai. The concentration of Cd in fruit was significantly positive correlated with Pb,La,and Li in soil;Sr in fruit was significantly positive correlated with Li and I.a in soil; the content of Co in fruit was positive correlated with Y and La in fruit. The soils of all producing areas were suitable for the cultivation of L. Bararum and the contents of heavy metal elements in fruits did not exceed the national standards of Chinese traditional medicine.

关 键 词：宁夏枸杞 土壤 果实 重金属 积累 

分 类 号：R33[医药卫生—人体生理学]