Spatial Distribution of Magnetic Properties and Selected Heavy Metals in Calcareous Soils as Affected by Land Use in the Isfahan Region,Central Iran

作     者：Z. DANKOUB S. AYOUBI H. KHADEMI LU Sheng-Gao 

作者机构：Department of Soil Science College of Agriculture Isfahan University of Technology Isfahan 84156-83111 （Iran） College of Environmental and Resource Sciences Zhejiang University Hangzhou 310000 （China） 

出 版 物：《Pedosphere》 (土壤圈（英文版）)

年 卷 期：2012年第22卷第1期

页      面：33-47页

核心收录：

学科分类：0818[工学-地质资源与地质工程] 09[农学] 0903[农学-农业资源与环境] 0901[农学-作物学] 090301[农学-土壤学] 

基　　金：Supported by the Isfahan University of Technology Iran 

主　　题：重金属污染 石灰性土壤 磁学性质 土地利用 空间分布 伊朗 土壤环境质量 饱和等温剩磁 

摘      要：Anthropogenic activities have caused the accumulation of heavy metals in the soil *** of the soils significantly reduces environmental quality and affects human *** many recent studies,magnetic susceptibility measurements have been used for pollution *** objective of this research was to determine the spatial variability of magnetic properties and selected heavy metals and the effect of land use on their variability in the surface soils of the Isfahan region,Central Iran.A total of 158 composite surface(0-5 cm) samples of calcareous soils were collected from an area of about 700 km 2,located along a cross-border transect from Isfahan City to a steel plant,covering urban,industrial,agricultural,and uncultivated land *** of copper(Cu),zinc(Zn),lead(Pb),manganese(Mn),iron(Fe),nickel(Ni),chromium(Cr),and cobalt(Co) and magnetic parameters,magnetic susceptibility at low frequency(χlf),natural remanent magnetization(NRM),saturation isothermal remanent magnetization(SIRM),and isothermal remanent magnetization at the field of 100 mT(IRM 100mT) and the backfield of 100 mT(IRM 100mT),were measured in all the soil *** showed that magnetic susceptibility in the urban and industrial land topsoils(0-5 cm) samples was significantly higher than that in the agricultural and uncultivated land soils in the study *** of Cu,Zn,Pb,Mn,and Fe were positively correlated with magnetic properties(χlf,IRM 100mT,SIRM,IRM 100mT,and NRM),which could be attributed to their inputs from traffic emissions and industrial activities at the study *** and Cr concentrations showed significant negative correlations with magnetic *** significant correlation was found between Co concentration and magnetic *** Tomlinson pollution load index(PLI) showed significant correlation with the magnetic properties(χlf,IRM 100mT,SIRM,IRM 100mT,and NRM).The spatial distribution of the selected heavy metals and χlf in