The research of the Middle Age marine transportation and the circulation in the Kii Channel and tneighboring area

纪伊水道及其附近地区是连接濑户内海和太平洋的重要通道。在日本近代以前，它是日本西进通道的中心。然而，中世纪海上交通的重要性却被忽视了。本课题以淡路、泉、纪伊、阿波、土佐等海滨省份的历史记载为基础，考察中世纪的海上交通和流通的实际状况。由于有关中世纪海上交通的历史记载有限，本文还利用了各省庄园的历史记载。例如，在这个项目中，包括历史记录和在寺庙和神社，如Royasan和Iwashimizu-hachimangu庄园的材料。海上运输曾被用于军事行动，因此，海上运输的历史记录也包括在内。提取了各省成为海上交通基地的锚地，考察了海上交通与流通的面貌。在连接濑户内海的通道中，有经过大本浦的通道和经过鸣门海峡的通道。可以确认，后者的中转站地点被忽视了。研究结果表明，淡路省西南地区在海上交通中发挥了重要作用。此外，土佐省、阿波省、纪伊省也成为木材和森林资源的供应地区。在以前的研究中，连接土佐省和泉省的通道在大仁时代之后被用于濑户的濑户内海。但是，本工程表明，这条通道从早期起就被用作日本国内航道的重要商业通道。

The Kii Cannel and neighboring area are a crucial passage between the Inland Sea of Seto and the Pacific. In pre-modern ages of Japan, it functioned as a center in the western turn passage. However the significance of the marine transportation in the Middle Age has overlooked. This project focused on the examination of the medieval marine transportation and the actual condition of the circulation based on historical records about Awaji Province, Izumi Province, Kii Province, Awa Province and Tosa Province which were seaside provinces. Due to the limited historical records on the medieval marine transportation, the historical records of the manor in those provinces are utilized, too. For example, the historical records and the materials on the manor in the temples and shrines such as Royasan and Iwashimizu-hachimangu are included in this project. Marine transportation had been used for military action, thus the historical records on the marine transportation is included as well. It extracted an anchor ground which became a marine transportation base of each province, and examined the view of the marine transportation and the circulation. There are a passage via Daimotu-ura and a passage via the Naruto Strait in the passage to connect the Inland Sea of Seto. It was possible to confirm that the transfer-station place of the latter which was overlooked. The research result shows that Awaji Province southwest area had played an important role in the sea transportation. Also, it clearly shows that Tosa Province, Awa Province, and Kii Province became the supplying district for lumber and forest resources. In the former research, the passage connected Tosa Province and Izumi Province was used in the Inland Sea of Seto after the Ounin period. However, this project shows that this passage was used as an important commercial aisle of Japan's-domestic channel form the earlier days.