GIS-based research on the spatial distribution and spatiotemporal evolution of grottoes along the Gansu section of the Silk Road

Grottoes along the Gansu section of the Silk Road exhibit clustered and uneven distribution, with primary and secondary gathering areas identified in Qingyang–Tianshui and Wuwei-Zhangye cities, respectively. Spatiotemporal analysis reveals significant shifts in excavation and repair activities across dynasties, with notable peaks during the Northern and Southern Dynasties, Sui and Tang Dynasties, and Ming and Qing Dynasties. The central location of grottoes shifted from northwest to southeast over time. Natural factors like topography and lithology, along with human influences such as politics and transportation, significantly impacted their spatial pattern. This GIS-based study provides critical insights for the theoretical research and practical management of Buddhist cultural heritage on the Silk Road.

Yang, R., & Wei, W. (2023). GIS-based research on the spatial distribution and spatiotemporal evolution of grottoes along the Gansu section of the Silk Road. https://doi.org/10.21203/rs.3.rs-2584780/v1