The relationship between plants growth and soil physic_ chemical features such as texture, bulk density and compaction, water supply, organic matter and nutrient, soil reaction, salinity and salt base saturation.

• 从城市土壤的物理化学特征如结构、壤容重和紧实度、市土壤的水分供应、壤有机质与养分含量、壤酸碱度、壤次生盐渍化和盐基饱和度等角度讨论了城市土壤与城市绿化植物生长之间的关系。