Heavy Metals Distribution In Soil Profile Of Farmland Along With NECT Areas Of Jilin Province (China)

In the last decades,various anthropogenic and natural activities have caused substantial increases in soil organic and inorganic pollutants worldwide.Various studies have carried out to monitor and measure the soil heavy metals throughout China.However,the North East China Transect area(NECT)was not explored for heavy metal pattern in farmland along with different soil types and soil profile.The present work aimed to investigate and understand the distribution of heavy metals in four different soil types of NECT(e.g saline soil,light chemozem and chemozem soil,black soil and dark brown soil|),via inductively coupled plasma method mass spectrometer(ICP-MS).We obtained 780 measurements of the heavy metals from 10-20 cm and 40-50 cm depths of different soils.The selected seven locations were respectively Changling,Sijianfang,Changchun,Nongwan,Longwan,Donglio and Baihe of(NECT).The qualitative analysis detected ten heavy metals;such as Cr,Ni,Cu,Zn,As,Cd,Pb,Co,Se,and Sb.The concentrations of respective metals showed distinct variation among the different soil of the NECT.Result showed that Cr and Zn concentration were the highest among all the metals,while,Se of black soil in Changchun area.The dark brown soil of(Baihe area)was observed to be more pollutant with the Cr concentration of 142.00 mg/kg.Moreover,saline soil,light chemozem soil,chemozem soil and dark brown soil were moderately polluted with heavy metal contents.Correlation and PCA result showed the source was closely related with anthropogenic activities and agriculture activities.This study provides information on soil pollution caused by heavy metals and its affected regions and cropping systems on a regional scale.It can be useful for developing heavy metals pollution control and management strategies in northeast China.