世界城市的生态建设及北京的选择

生态问题是世界城市建设的制约因素之一。全球公认的三大世界城市在生态建设方面各有特色，效果显著。建设世界城市过程中的北京可以借鉴三大世界城市的相关经验，并结合自身的生态问题，积极寻求解决问题的途径。运用博弈理论，提出北京要解决生态问题，为建设世界城市扫清障碍，需要从都市圈整体的角度思考问题，即要进行区域生态合作建设，具体的对策是改变思想观念、强化政府作用和建设相关机制。

The Ecological Construction of World City and the Choice of Beijing

Ecological problem is one of the factors that restrict the construction of a world city. The three major world cities which are globally accepted have their own characteristics in the ecological construction, and the effects are very significant. Beijing needs to consider from the overall perspective of metropolitan circle to solve its ecological problems and clear away the obstacles in building world city. Conceptions must be changed, governmental roles must be strengthened and relevant mechanism must be built up.