激发极化法在树木生长环境调查中的应用  

Application of induced polarization method in investigation of tree growth environment

作　　者：刘先翠 黄俊革 刘宇 鲁宁琦 王继豪 LIU Xiancui;HUANG Junge;LIU Yu;LU Ningqi;WANG Jihao(School of Urban Construction and Safety Engineering,Shanghai Institute of Technology,Shanghai 201418,China;College of Civil Engineering,Kashgar University,Kashgar 844006,Xinjiang,China)

机构地区：[1]上海应用技术大学城市建设与安全工程学院,上海201418 [2]喀什大学土木工程学院,新疆喀什844006

出　　处：《应用技术学报》2024年第4期480-484,共5页Journal of Technology

基　　金：国家自然科学基金项目(41564004);上海市联盟计划项目(LM201903)资助。

摘　　要：采用激发极化法探测树木生长根部环境下视电阻率和视极化率的变化来判断树木根部生长成因差异。通过对上海应用技术大学奉贤校区宿舍道路两侧长势差异较大的同种树木根系周围采用电法勘探法,得到其根部周围视电阻率拟断面图和视极化率拟断面图,以此推测影响道路两侧树木长势差异较大的成因并验证。结果显示,行道树两侧道路视电阻率拟断面图差异不明显,而极化率拟断面图差异较大,行道树稀疏侧存在多处高极化异常体,其拟断面图高极化形态与地下电力管线的位置对应性良好。研究结果表明,激发极化法在对地下管线等位置、探测土壤环境变化具有较高的准确性。The induced polarization method is used to detect the changes of apparent resistivity and apparent polarizability in the root environment of trees to judge the differences in root growth causes.By adopting electrical prospecting method around the roots of the same kind of trees with large growth potential difference on both sides of the dormitory road in Fengxian campus of Shanghai Institute of Technology,the apparent resistivity pseudo section and apparent polarization pseudo section around the roots are obtained,so as to speculate and verify the cause of the large growth potential difference of trees on both sides of the road.The results show that there is no obvious difference between the pseudo section diagrams of apparent resistivity of roads on both sides of the roadside trees,but there is a large difference between the pseudo section diagrams of polarizability.There are many high polarization anomalies on the sparse side of the roadside trees,and the high polarization morphology of the pseudo section diagrams corresponds well to the location of underground power pipelines.The results show that the induced polarization method has high accuracy in detecting the position of underground pipelines and soil environmental changes.

关 键 词：激发极化法 树木根系 土层环境 电阻率 极化率 

分 类 号：X53[环境科学与工程—环境工程]