摘要
为了解污灌区弱碱性土壤中镉的运移状况和积累特性,以汾河典型断面下河床土壤中的镉为研究对象,通过土柱试验分析镉在河床土壤中的分布状况及其含量随时间的变化规律。结果表明:不同深度土壤中镉的积累量因河床土壤的性质不同而异;临汾地区河床土壤镉污染程度较清徐严重;镉基本分布于土壤表层,对地下水的污染影响较小。
In order to investigate the state of migration and characteristics of accumulation of cadmium in the weakly alkaline soil of the sewage irrigation, cadmium in the riverbed soil of the typical section along the Fenhe River was used to analyze the distribution and the content variation of cadmium in the riverbed soil as a function of time by Soil-column experiments. The results show that the accumulation of cadmium in different depth varies with the quality of the soil. The pollution degree of the riverbed soil in Linfen is heavier than that in Qingxu. With the fundamental distribution in the topsoil, cadmium has insignificant effect on the groundwater contamination.
出处
《太原理工大学学报》
CAS
北大核心
2014年第3期415-419,共5页
Journal of Taiyuan University of Technology
基金
山西省河道管护服务总站资助项目(2010-11)
关键词
汾河
河床土壤
镉
纵向迁移
积累机理
the Fenhe River
riverbed soil
cadmium
vertical migration
accumulation
