Culture-Commerce-Tourism Integration in Xiamen Shapowei: Economic Outcomes and Governance Logic

China's urban renewal has entered a stage of upgrading the existing assets. The integration of culture, commerce and tourism has become the mainstream approach for revitalizing old neighborhoods. However, the experience of leading benchmark projects is difficult to adapt to the limited resource endowments of small and medium-sized characteristic neighborhoods. The transformation of production-oriented waterfront fishing ports faces particularly prominent contradictions. This article takes the Shapowei Fishing Port District in Xiamen as a case and uses the longitudinal time-series comparison method to analyze the economic effects and governance logic of the integration of culture, commerce and tourism. The research shows that the gradual renovation of Shapowei achieved significant revitalization results, with the rent level increasing by more than doubled, the business structure being comprehensively upgraded, and the passenger flow scale continuously growing. The rent premium follows a three-layer transmission path of "space scene empowerment - cultural traffic transformation - business iteration value increase", essentially being the process of gradually realizing the potential rent of the space through the replacement of business types; the local fishing business types being squeezed out is the result of market spontaneous evolution, not an inevitable trend. Through institutional designs such as gradient spatial layout and symbiotic business type cultivation, the coexistence development of the two can be achieved. The research in this article can provide a path reference for the high-quality revitalization of similar small and medium-sized fishing port districts.