邻苯二甲酸二丁酯在不同品种菜心-土壤系统的累积  

Accumulation of di-n-butyl phthalate in different genotypes of Brassica Campestris - soil systems

作　　者：曾巧云[1] 莫测辉[2] 蔡全英[1] 吴启堂[1] 

机构地区：[1]华南农业大学资源环境学院,广东广州510642 [2]暨南大学环境工程系,广东广州510632

出　　处：《中国环境科学》2006年第3期333-336,共4页China Environmental Science

基　　金：国家自然科学基金资助项目(30471007);广东省自然科学基金资助项目(036716);广东省科技计划项目(03A20504;03C34505)

摘　　要：在邻苯二甲酸二丁酯(DBP)污染的水稻土中盆栽不同品种菜心,采用GC/MS研究了菜心-土壤系统中DBP的分布特征.结果表明,不同品种菜心茎叶和根系对DBP的吸收累积存在明显差异;不同品种菜心茎叶中DBP含量与其叶面积大小之间存在一定的正相关关系.不同品种菜心-土壤系统中DBP的分布特征明显不同,新选45天油菜心表现为茎叶和根系中DBP含量较低,盆栽后土壤中DBP含量也较低;特青60天菜心和新选油青四九菜心表现为茎叶和根系中DBP含量较低,但盆栽后土壤中DBP含量较高;油青60天菜心表现为茎叶和根系中DBP含量较高,盆栽后土壤中DBP含量也较高.Different genotypes of Brassica Campestris were pot-cultured in paddy soil polluted by di-n-butyl phthalate（DBP）, and the distribution of DBP in Brassica Campestris-soil system was studied adopting GC/MS. DBP accumulation of the leaves and roots of different genotypes ofBrassica Campestris varied obviously. The contents of DBP in the leaves and roots of Teqing-60 Brassica Campestris and Youqingsijiu Brassica Campestris were all lower, Yashuquannianyoulu Brassica Campestris and Youqing-60 Brassica Campestris were all higher. The contents of DBP in the leaves existed definite positive correlation with the size of leaves areas. The distribution of DBP in different genotypes of Brassica Campestris-soil systems was different obviously. The contents of DBP in Xinxunsiwu Brassica Campestris in leaves and roots and in pot-cultured soil were lower; DBP contents in Teqing-60 Brassica Campestris and Xinxunsijiu Brassica Campestris in leaves and roots were lower, but DBP content in pot-cultured soil was higher; and DBP contents in Youqing-60 Brassica Campestris in leaves and roots were higher, and also higher in pot-cultured soil.

关 键 词：邻苯二甲酸二丁酯(DBP) 菜心 水稻土 累积效应 

分 类 号：X53[环境科学与工程—环境工程]