中文摘要：

通过引入索绪尔的时态理论，探索少数民族村寨介入旅游的时空形态及其对文化的影响。从时间维度上分为共时态和历时态，空间维度上分为强介入和弱介入。调查发现，少数民族村寨介入旅游存在三种时空形态，即共时态弱介入、历时态弱介入，共时态强介入、历时态强介入，以及共时态强介入、历时态弱介入。不同时空形态中，民族村寨在时间和空间维度上介入旅游的程度均有所不同，对民族村寨文化生态系统产生的影响也有所差异。

英文摘要：

Ethnic community participation in tourism has been a hot issue of academic concerns. This paper introduces Sanssure＇s tense theory and expands the theory of community participation from the perspective of time and space. Based on the re- search, the time dimension is divided into synchronic and diachronic, and the spatial dimension is divided into strong participation and weak participation. It is found that there exist three categories of time - space form, namely, synchronic weak participation and diachronic weak participation; synchronic strong participation and diachronic strong participation; synchronic strong participation and diachronic weak participation in ethnic community participation in tourism. Through the analysis of three ethnic communities＇ participation in tourism, it verifies the theoretical construction. This study also finds that the degree of participation in tourism va- ries in different time and spatial forms of ethnic communities, which has different impacts on the cultural and ecological system of ethnic communities.