内蒙古河套地区小麦重金属含量与土壤质量的关系研究  

Research on the Relationship between the Heavy Metal Content of Wheat and the Quality of Soil in Hetao Area,Inner Mongolia

作　　者：张青[1,2] 段海龙[3] 廖蕾[1,2] 樊永刚[2] 赵锁志[1,2] 

机构地区：[1]中国地质大学水资源与环境学院,北京100083 [2]内蒙古自治区地质调查院,呼和浩特010020 [3]内蒙古国土资源勘查开发院,呼和浩特010020

出　　处：《安全与环境工程》2010年第1期36-40,共5页Safety and Environmental Engineering

基　　金：内蒙古河套农业经济区生态地球化学调查项目(200414200005)

摘　　要：依据在内蒙古河套地区采集的小麦茎叶、籽粒及根系土样品,分析了小麦籽粒和土壤重金属污染状况,结果表明:小麦作物中各部位重金属含量大小顺序依次为根系>茎叶>籽粒,小麦对重金属Cu、Pb、Zn、Cd、Cr、Ni的吸收能力从大到小的顺序为Zn>Cu>Ni>Cr>Pb>Cd>Hg;小麦籽粒个别土样存在Pb污染问题,需要做进一步的研究和关注;整体上看河套地区为绿色食品基地的土壤,适宜发展AA级绿色食品。Through collecting stems,leaves,fruits and root soils of wheat in Hetao area, this paper analyzes the pollution conditions of heavy metals in wheat fruits and root soil. The heavy metal content of wheat is ranked in the order of root soil〉stem〉fruit. The absorptive capacity of heavy metal of wheat is ranked in the order of Zn〉Cu〉Cr〉Ni〉Cd〉Pb. On the whole,the soil of Hetao area is green food base, suitable for developing pollution-free food of AA grade. But there exists Pb pollution in individual fruits of wheat in Hetao area, so this problem of excessive Pb needs to be further researched and paid more attention to.

关 键 词：小麦籽粒 重金属 土壤污染 河套地区 

分 类 号：X835[环境科学与工程—环境工程]