Relationship between heavy metals and property of agricultural soil in Guangzhou suburb

Soil property and heavy metal content of agriculture soil in the suburbs of Guangzhou were studied to analyse relations between soil property and soil heavy metal content.The results showed that the 70.5% of the samples gathered in the suburbs of Guangzhou were loamy soil with an average pH value being 5.93,and an average content of organic matter being 317 g·kg^-1.Though not high, CEC of the soil varied greatly from site to site.The distribution of Cu,Pb,Zn,Cr,Ni,Cd,As and Hg differed in garden soil,latosolic red soil and paddy soil.The results of correlation analysis showed that the relations between soil heavy metal and the soil property were very complicated.