城市的形成和发展是社会经济文化发展的结果。20世纪,特别是第二次世界大战以来,城市规模以空前扩展,我国是世界上城市最多的国家之一。近几年来,我国城市化进程很快,改革开放的大潮,推动着城市建设日新月异地向前发展但作为城市生态主要因素的城市园林绿化,却运运落后于城市建 The formation and development of cities are the result of socio-economic and cultural development. Since the 20th century, especially since the Second World War, the scale of cities has expanded at an unprecedented rate. Our country is one of the cities with the largest city in the world. In recent years, the rapid urbanization in our country and the tide of reform and opening up have promoted the rapid development of urban construction. However, urban landscaping, which is a major factor of urban ecology, lags behind urban construction