| The developing trend of nurseries was analyzed from three aspects: the main problems existing in the choice of tree species in Beijing, the analysis of market situation, and problem-orientated aspect. This study aims to solve problems of urban afforestation: mixed species, male and female mixed,catkins flying, fruit dropping, late sprout, early deciduous phenomenon. Meanwhile, the purpose of "green extension" to enhance the landscape effect is also considerable. To build large-scale nurseries，we should create professional technical team, orchestrate characteristics of the nursery brand, and focus on seed selection work. |