On the Cu Distribution in the Soil of Park Green Land of Neijiang

A survey was made of the heavy metal Cu, the organic substances and the pH value in the layer of 0-20cm soil taken from the Daqian Park, Tower Hill Park, Dazhou Square and People's Park in Neijiang; and a comparison was made with the farm land and the results showed that:(1)the Cu content in the soil of Tower Hill Park was significantly lower than that of people's Park. No significant difference was found between the green land and agricultural land. The content of Cu in green land is up to the state's first-class standard for the soil Cu content;(2)the overall Cu content detected for different positions of slope is: downsope > mesoslope > upslope;(3)the green land soil pH value were between 7.4 and 8.33, and the difference of organic content was found to be insignificant;(4)the Cu content in soil was not significantly related with the organic matter and pH value