御蔵所の空間構成の特徴と形成要因

－近世期の熊本藩御蔵所の空間構成に関する研究（その１）－

抄録

 Chapter 1: The purpose of this study is to clarify the characteristics of spatial structures of Okura-syo owned by the Kumamoto Domain in the Edo Period. This study highlighted that three buildings of Okura remain in current Kumamoto prefecture, and some Okura-syo had the Yard for placing the straw bag of rice as well. The Yard was an outside storehouse to keep the straw bag of rice collected. Due to abolition of the Jikatachigyo system where lands were given to the Domain vassals so that they could collect their salary from such lands in 1680, the need of Okura arose and the scale of Okura-syo was expanded.

 Chapter 2: The previous studies and the procedure were shown. The study on Ochaya also referred to Okura-syo as some Okura-syo were established with Ochaya, Domain's accommodation for rest and stay. In addition, in view of the partial remaining of stone buildings such as the Yard, a scope of Okura-syo in the site was considered.

 Chapter 3: The Okura-syo for which consideration on spatial structures is available were found in two castles and five towns/villages. First, the formation process, components of spatial structures and facts were shown respectively. Kawashiri-machi had three Okura-syo, of which "Higashigura" and "Nakagura" as well as Ochaya formed the external enclosure. Each Okura-syo had the internal enclosure. Also in Takase-machi, Ochaya, the Okura group and the Yard formed the external enclosure. However, the Okura group did not have the internal enclosure. Many Okura-syo with only one building of Okura were found as well, and the scale of such Okura was large. Okura-syo at a river port had the unique spatial structures. First, the main Okura stood with its gable side facing to a river. Second, there were some Kura standing opposite each other without sharing the gardens, where the straw bags of rice were piled up for storage.

 Next, the types of the building arrangement were considered by comparing with the Kaga Domain with large fiefdom. The Kumamoto Domain had only a few parallel types and enclosure types that were often seen in Okura-syo of the Kaga Domain. On the other hand, the study found many Okura-syo without having any type of arrangement: (i) the Okura-syo with only one building of Okura, and (ii) the Okura-syo with more than one Okura but arranged in disorder. Finally, the formation factors of the above were considered. For the first one, the existence of the Yard and increased scale of Okura can be the factors. For the second one, the sharing of the space was not necessary for each Kura. The Okura-syo at a river port had the spatial structures where each place for storage of goods such as the Yard, garden and Okura linked to the port.

 Chapter 4: In the end, the conclusion of this study was stated. In the case of the Kumamoto Domain, many Okura-syo did not have a building arrangement, and their spatial structures were different from other Okura-syo in the heavy snowfall region in Japan. One of the factors has been found that they could use the outside space for a storage of the straw bag of rice.