御拳場境界データを用いた江戸・東京の境界変遷に関する研究

The boundary data of 6 falconry fields for shoguns named “Okobushiba” are published as GIS data by reconstructing these boundary data by old drawing maps. A part of these boundaries performed a function as allotting land in Edo castle town. However, the influence of falconry field boundary on the administrative boundaries in Tokyo in the Meiji and later era still remains unclear. The purpose of this study is to examine the historic changes of boundary of Edo-Tokyo area during Edo period and Meiji era, and to make clear the decision process of boundaries and their difference by comparing the boundary data of falconry fields in Edo period with that of Tokyo 15 wards in Meiji era. As a result, the boundaries in the Edo period and the Meiji era are both mainly based on topography. In addition, the shogunate government also take the location of their main facilities into account of the definition of the boundary in Edo period.