中文摘要：

城市文化旅游品牌演化经历孕育期、成长期、成熟期、成熟后期四个阶段，各个阶段皆呈现出异质的演变规律，其演化动力包含内源动力与外源动力，内源动力表现为各生物单元追求共生带来的回报；外源动力为外部政府的制度引力、外部城市文化旅游品牌建设带来的压力、消费者日益增长的文化消费拉力。城市文化旅游品牌包含选择机制、创新机制、生态平衡机制，选择机制主导着城市文化旅游品牌进化的方向；创新机制给予源源不断的能量补给；生态平衡机制增加了城市文化旅游品牌的生态耐受幅度，使其成为一个广适应性物种。

英文摘要：

The evolution of urban cultural tourism brand experiences four stages： birth, growth, maturity, and post-maturity. Each stage of evolution is highly heterogeneous. The evolution power of urban cultural tourism brand includes internal and external source of power, the internal source of power is pursuit of symbiotic payoff from biological units, the external sources of power inelude institutional attraction from outside urban governments, pressure of building cultural tourism brand from other regions, and the pull strength from growing culture consumption. Urban cultural tourism brand includes selection mechanism, innovative mechanisms, and ecological balance mechanism. The selection mechanism dominates the evolution direction of urban cultural tourism brand, the innovative mechanism gives a steady energy supply, and ecological balance mechanism increases the magnitude of ecological tolerance of cultural tourism brand, making it a widely adaptable species.