Study on the Characteristics of the Settlement Plaques in Tibetan Historical and Cultural Villages and Towns

The research focuses on the 14 Tibetan settlements currently selected as famous historical and cultural villages and towns in China. The field survey and geographic information data are visually expressed, and the data is integrated and calculated through statistical tools in ArcGIS. Using quantitative methods based on fractal theory and domain segmentation theory, from the two levels of the individual and the whole of the plaque, the order and organization characteristics of the traditional Tibetan settlement architectural plaque are explored respectively, which has positive significance for promoting the new urbanization construction of Tibetan villages and towns and the healthy development of rural revitalization strategies in the future. On the scale of a single plaque, the smaller the settlement scale of the Tibetan historical and cultural villages and towns, the simpler the plane of the building plaque, and the pattern is mostly simple rectangle; on the contrary, the plane of the plaque is more diversified. On the overall level of plaque, the Tibetan settlement building plaque are distributed in clusters as a whole. On the whole, the smaller the average nearest neighbor distance, the more compact the cluster distribution structure, the higher the building plaque density index, and the higher the building plaque fragmentation. Religious culture in the region has a profound impact on both. The more declining settlements are affected by religious culture, the smaller the size of the settlements. The order of building plaque tends to weaken, the randomness of the plaque tends to be greater, and the shape characteristics of the plaque tend to be simpler. Based on the common religious beliefs and ethnic culture of the Tibetan community, Tibetan historical and cultural villages and towns have similar characteristics.