中文摘要：

在生态学理论中，谈到生物的种间竞争时会引入“寄生”与“共生”两个概念。从种问竞争的角度看城市的成长也可以分为“寄生”和“共生”两种模式，“寄生”和“共生”现象在城市群中对不同类型和不同能级的城市都有借鉴意义，从“寄生”到“共生”再到超越是城市成长中的必然过程，是城市成长的必然的理性选择，也是城市自然“进化”的结果。

英文摘要：

Two concepts ＂parasitic＂ and ＂ symbiotic＂ will be introduced in Ecology when talking about the competition among species. The city＇ s self - growth pattern can be also divided into two patterns： ＂parasitic＂ and ＂symbiotic＂. The phenomenon of ＂pm＇asitic＂ and ＂symbiotic＂ can be used for reference to urban agglomeration of different types and different levels. That the small and medium - sized cities grow from the ＂parasitic＂ to the ＂symbiotic＂ and then exceed to further development is an inevitable process in urban growth, is an inevitable rational choice, and is also the result of natural ＂ evolution＂ of city groups.