城市近郊菜地土壤和蔬菜重金属含量分析与研究  

Analysis and study on heavy metal content in the suburban vegetable garden soil and vegetable

作　　者：苏琪娇 王济[1] 陆晓辉[1] 戴凌骏 

机构地区：[1]贵州师范大学地理与环境科学学院,贵州贵阳550001 [2]贵州省山地资源与环境遥感应用重点实验室,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2016年第6期27-32,共6页Journal of Guizhou Normal University：Natural Sciences

基　　金：国家十二五科技支撑计划项目(2012BAD14B02-6);贵州省科学技术基金重点项目(黔科合JZ字[2014]2012号);大学生创新训练计划项目(201310663015)联合资助;贵州省社发项目(黔科合SY字[2012]3042)

摘　　要：为了解城市近郊菜地土壤、蔬菜中Zn、Cd、Pb、Cu含量间的关系,选取贵阳市花溪区为研究区,采集研究区菜地土壤样本46个,蔬菜样本22个,分别测出土壤、蔬菜中重金属Zn、Cd、Pb、Cu的含量。结果表明:1)菜地土壤、蔬菜中4种重金属含量偏离均值,空间分布差异较大;2)菜地土壤中Zn、Cd元素来源可能相同;蔬菜中Cu与Zn元素相关性达极显著水平,Cu与Pb元素相关性达显著水平;3)蔬菜中的Zn、Cu主要来源于土壤;4)菜地土壤中4种重金属出现了不同程度的污染,其中受Zn元素影响较为明显。蔬菜受Cd、Pb元素污染相对严重。In order to determine the relationships among Zn,Cd,Pb and Cu contents in garden soil and vegetables in the suburbs,we collect 46 samples of garden soil samples and 22 samples of vegeta-bles from Huaxi District of Guiyang city to measure the content of heavy metal Zn,Cd,Pb,and Cu in garden soil and vegetables. The results are as follows：1）4 kinds of heavy metal content are deviation from the mean and spatial distribution differences in garden soil and vegetables. 2）Zn and Cd in gar-den soil may have the same source. For vegetables,the correlation between Cu and Zn reaches a very significant level,and the levels of Cu and Pb are significant. 3）Zn and Cu of vegetables come mainly from garden soil. 4）4 kinds of heavy metal contents in garden soil showed varying degrees of contami-nation,affected by Zn element of which is obvious. Vegetables polluted by Cd,Pb element is relative-ly severe.

关 键 词：土壤 蔬菜 重金属含量 

分 类 号：X53[环境科学与工程—环境工程]