完善北京城市隔离片林种植结构的研究

为提高城市隔离片林生态效益及景观面貌,片林结构除简单的乔木层外,还应具有一定面积的复层混交种植结构．该文推荐７６种适合北京城市隔离片林各层次应用的园林植物,设计“林景型”的“春花秋实”、“林生型”的“防护”、“林经型”的“药用”３类３种复层混交种植结构模式,并改造金盏片林（局部）,建立较为理想的复层混交种植结构的示范区

Improve Plantation Structure of Isolating Greenbelts in Beijing

Besides the simple arbor layer, the multi layer plantation structure should be adopted in order to enhance the ecological benefits and scene values of isolating greenbelts in Beijing. Seventy six plant species, which are suitable for varied light situation, have been selected and recommended for each layer of greenbelts. And also, 3 kinds and 3 models of vertical plantation structure, which are “Forest Scene" type “Bloom in Spring & Fruit in Autumn" model, “Forest Ecology" type “Protective Function" Model and “Forest Economy" type “Medical Value" model, are designed. By reforming the Jinzhan greenbelt located in the Chaoyang District,The demonstration model with a perfect multi layer plantation structure of isolating greenbelts has been established.