Geographical studies on distribution and diffusion of Japanese keyhole-shaped mounded tombs in the Kyushu and the Kinki region

在九州地区和近畿地区有许多日本钥匙孔形土墩墓（Zenpoukouenhun）。一开始，我在这两个地区建立了Zenpoukouenhuns的GIS数据库。我通过使用数据库研究了Zenpoukouenhuns在这两个地区的分布。因此，我在这项研究中获得了以下结果。这种巨大的差异必须通过两个地区的大规模Zenpoukouenhuns的比例随时间的变化来观察。在这两个地区，根据时间的不同，作为典型的贵重物品的三角渊-神镜（一种与领主尸体一起埋葬的铜镜）和Gamontai-shinjukyos（一种与领主尸体一起埋葬的铜镜）的分布存在很大差异，后者的分布倾向于集中在近畿的中部。根据规模和时间对Zenpoukouenhuns的等级进行检查，因此在九州地区的等级不应相同。本研究发现了许多关于九州地区和近畿地区的Zenpoukouenhun分布的有趣事件。

There are many Japanese keyhole-shaped mounded tombs (Zenpoukouenhun) in the Kyushu region as well as the Kinki region. In the beginning I made the GIS database of Zenpoukouenhuns in both areas. I researched the distribution of the Zenpoukouenhuns in both areas by using the database. As a result, I obtained the following results for this research. The great divergence must be seen by the transition of the ratio of large-scale Zenpoukouenhuns in both regions according to time. There are great divergence between the distribution of Sankakubuchi-shinjukyos (a kind of bronze mirror which was buried together with a dead body of lord) and Gamontai-shinjukyos (a kind of bronze mirror which was buried together with a dead body of lord) that are typical prestige goods according to time in both regions, and the distribution of the latter tends to concentrate on the central portion in the Kinki. The hierarchy of the Zenpoukouenhuns shall not be regionally the same in the Kyushu region as a result of examining them according to the scale and time. This research found a lot of interesting events for the distribution of the Zenpoukouenhuns in the Kyushu region and the Kinki region.