Simulating the route of the Tang-Tibet Ancient Road for one branch of the Silk Road across the Qinghai-Tibet Plateau

Autoři: Zhuoma Lancuo aff001;  Guangliang Hou aff001;  Changjun Xu aff002;  Yuying Liu aff003;  Yan Zhu aff001;  Wen Wang aff004;  Yongkun Zhang aff004
Působiště autorů: Key Laboratory of Physical Geography and Environmental Process, College of Geography, Qinghai Normal University, Xining, Qinghai Province, China aff001;  Key Laboratory of Geomantic Technology and Application of Qinghai Province, Provincial geomantic Center of Qinghai, Xining, Qinghai Province, China aff002;  Department of computer technology and application, Qinghai University, Xining, Qinghai Province, China aff003;  State Key Laboratories of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province, China aff004
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article


As the only route formed in the inner Qinghai-Tibet plateau, the Tang-Tibet Ancient Road promoted the extension of the Overland Silk Roads to the inner Qinghai-Tibet plateau. Considering the Complex geographical and environmental factors of inner Qinghai-Tibet Plateau, we constructed a weighted trade route network based on geographical integration factors, and then adopted the principle of minimum cost and the shortest path on the network to simulate the ancient Tang-Tibet Ancient Road. We then compared the locations of known key points documented in the literature, and found a significant correspondence in the Qinghai section. However, there was a certain deviation between the key points recorded in Tibetan section and the simulated route; we found that the reason is the relative oxygen content (ROC) became a limited factor of the choice of the Tibetan section road. Moreover, we argue that the warm and humid climate and the human migration to the hinterland of the Qinghai-Tibet plateau were the fundamental driving forces for the formation of the Tang-Tibet Ancient Road.

Klíčová slova:

Deserts – Forests – Plateaus – Population density – Rivers – Roads – Temperate forests – Tibetan people


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