Abstract: Phenological scheme of urban greening tree species is an important research content in urban horticulture. In this paper, the phenological table of 29 main trees in Shenyang urban forest was drawn based on six year observation, and their phenological phenomena were clustered into sprouting-leaf expanding, leaf coloring, leaf falling, and flowering-fruiting. According to the time of leaf coloring and flowering, which was most considered in horticulture, the main tree species in Shenyang urban forest were clustered into several groups, which could be helpful for the tree species selection and composing, and their benefit evaluation of urban forest.

Key words: Hinterland of Takilimakan Desert, Soil microorganisms, Soil factors, Irrigating by salt water