Study on Soil Pollution Status and Its Resilience in Cultivated Land with High Heavy Metal Pollution
In this paper,the agricultural area around a typical industrial and mining enterprise in Guangzhou is selected as the research area,and the cultivated land soil is taken as the research object.1 139 geochemical survey sites and soil survey data were used for the study.The results showed that the potential ecological risk of heavy metals in the surrounding soil was higher,and the soil resilience of cultivated land in the study area was generally not high.Clay content and cation exchange capacity(CEC)are the main strong limiting indexes,CaO,soil organic carbon(SOC)and pH value are the main medium limiting indexes.Different regions have different natural conditions such as terrain,hydrogeology and soil parent material,and different restricting factors.
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