本文以上海为例，探讨了生态平衡、生态位配置、互惠共生和物种多样性等生态学原理在绿地生态建设中的理论和实际应用意义，并从城市绿地指标确定、合理规划布局、丰富植物材料、城市自然公园建设及立体绿化等方面分析讨论了面向２１世纪我国城市绿化发展的思路与对策。 This paper, taking Shanghai as an example, discusses the ecological and ecological balance, ecological niche, reciprocal symbiosis and species diversity and other ecological principles in the ecological construction of green space theory and practical significance, and from the urban green space indicators to determine, rational planning layout, rich plants Materials, urban natural park construction and three-dimensional greening and other aspects of analysis and discussion of the 21st century China’s urban greening ideas and countermeasures.