期刊论文

中文

环境化学

0254-6108

2015

34

3

514-519

10.7524/j.issn.0254-6108.2015.03.2014062503

环保部公益项目（201009047） 湖南省环境科学重点学科建设项目资助

本校为第一机构

以湘中某工矿区农田为研究对象,野外定点采集红壤和紫色土母质水稻土耕层土壤及其对应样点水稻分蘖期和成熟期样品,分别使用富集系数、迁移系数和累积系数研究了Pb在土壤-水稻系统中的迁移特征.结果表明,成熟期水稻各部位Pb含量为根>茎叶>稻壳>糙米,其富集系数分别为55.07%、8.13%、2.47%、0.10%;迁移系数分蘖期为0.034%,成熟期0.080%,成熟期高于分蘖期(P

In the present study, the rice plants containing samples of tillering and mature stage, and corresponding soil samples ( red and purple soils) were collected from the industrial and mining area in central Hunan Province. Then the transfer characteristics of Pb in soil?rice system were analyzed using enrichment coefficient, transfer coefficient and accumulation coefficient. The results showed that the concentration order of Pb in the different parts of mature rice was in the order of:root>stem leaf> chaff> brown rices and the enrichment coefficient was 55. 07%, 8. 13%, 2. 47%, 0. 10%, respectiv...