摘要
为探究交流电阻率法监测紫色土锌污染环境的可行性,文章选取了万州长江周边农田典型紫色土为研究对象,分析了含水量、干密度、锌含量等因素对紫色土交流电阻率的影响,建立了紫色土受锌污染影响的交流电阻率测试模型。研究表明:测试电流频率选择高频时,交流电阻率稳定,而在低频范围内,则变化较大;交流电阻率对含水量敏感;环境质量标准关注范围内,交流电阻率受锌含量的影响随含量增大而减小;基于电阻率测试模型,获取紫色土的有关密度、含水量、交流电阻率,便可预测锌含量。
In order to explore the feasibility of monitoring zinc contaminated in purple soil by using AC resistivity method,the typical purple soil of farmland along the Yangtze River in Wanzhou was selected for analysis.By analyzing the influence of water content,dry density and zinc content on AC resistivity of the purple soil,an AC resistivity test model of the zinc contaminated purple soil was established.The results show that when the test current frequency is selected at high frequency,the AC resistivity is stable,while in the low frequency range,the change is large.The AC resistivity is sensitive to the water content.Within the focus of the environmental quality standards,the AC resistivity is influenced by the zinc content,and decreases with the increase of the zinc content.In the model,the zinc content can be predicted only by obtaining the relevant density,water content,and AC resistivity of the purple soil.
作者
申纪伟
毛海涛
王正成
闫磊
SHEN Jiwei;MAO Haitao;WANG Zhengcheng;YAN Lei(College of Civil Engineering,Chongqing Three Gorges University,Chongqing 404100,China)
出处
《环境科学与技术》
CAS
CSCD
北大核心
2019年第2期134-138,共5页
Environmental Science & Technology
基金
国家自然科学基金项目(41602367)
重庆市教委科学技术研究项目(KJ1601017
KJ1601029)
重庆市基础研究与前沿探索项目(cstc2018jcyjAX0673)
关键词
锌污染监测
紫色土
交流电阻率
测试模型
三峡库区
zinc contaminated monitoring
purple soil
AC resistivity method
testing model
Three Gorges Reservoir Area
作者简介
申纪伟(1987-),男,助教,硕士,主要从事道路与环境监测的研究,(电子信箱)shenjiwei200888@163.com;通讯作者:毛海涛,男,教授,博士,主要从事水土环境监测的研究,(电子信箱)maohaitao1234@163.com。
