Soil Factors on Chlorosis Leaf Cinnamomum camphora in Street Greening

On September 12, 2018, soil samples of 0 - 20 cm and >20 - 40 cm were collected under normal and chlorosis leaf Cinnamomum camphora from 4 streets of Zhangjiagang city, Jiangsu province. Determinations were implemented on pH, HCO3-, organic matter, available N, available P, available K, available Fe, available Mn, available Cu and available Zn, and analysis was made on relationship between chlorosis tree and soil factors. The results indicated that soil pH, HCO3-, available P and available Cu of chlorosis trees was higher than that under normal trees, while its organic matter, available N, available K, available Fe, available Mn and available Zn was the opposite. The results also showed that pH, HCO3-, available P and available Cu had negative correlation with available Fe, while organic matter, available N, available K, available Mn and available Zn had positive one.