Study on the Distribution and Evolution of Red Cultural Sites in Dongguan Based on Historical Documents and Spatial Autoregression Model

Red cultural sites are an important carrier of China's revolutionary history. The study of their spatial distribution and evolution law is of great significance for cultural heritage protection and urban planning. This paper proposes an analysis framework based on the spatial autoregression (SAR) model, combining historical document data mining with GIS spatial analysis, to quantitatively study the spatial distribution pattern of red cultural sites in Dongguan. The experimental results show that the spatial distribution of red cultural sites in Dongguan has significant autocorrelation, and shows a trend of agglomeration from discrete distribution to urban core areas over time, which is affected by factors such as economic development and policy protection. Compared with traditional analysis methods, SAR models can more accurately depict the spatial interaction characteristics between sites and improve the ability to analyze the distribution patterns of cultural sites. The research results provide a scientific basis for the protection and rational development of Dongguan's red cultural sites, and also provide new methodological support for the spatial analysis of cultural heritage.