Geographical research on the spatial organization and the change of spatial system in ancient Kyushu, south-weasten Japan

国府（古代省会）、道路网和Jori系统的恢复已经取得进展，挖掘表明，国府省办公室的建筑物、gozokus（强大家族）的主要场所等的布置，似乎可以调查古代九州的空间差异。本研究在总结近世纪以来日本历史地理研究成果的基础上，探讨了古九州的空间组织和空间系统的变迁，得出以下结论：古九州在古坟时代（约1000年）可划分为3个区域; 4-世纪）;与近畿地区的王权关系密切的北方九州地区、古坟时代前半期与北方九州地区相似但在古坟时代后半期表现出区域独创性的有明海地区、以及贯穿古坟时代始终的区域独创性的九州南部地区。强调国府中心的建筑布局取决于王权制定的城市规划并不一定是正确的。肥前国府中心的建筑布局与大泽府（九州古都）相似，而极后国府与大泽府不同。第三，国府似乎位于极后权力相对空缺的地方。国府的建设有可能是与有影响力的五祖在有影响力的五祖所在的省份合作进行的，并实现了空间组织。

The restoration of Kokufu(ancient provincial capital), road networks and the Jori system has progressed and it has been shown by excavations that the arrangement of buildings of provincial office in Kokufu, the principal places of gozokus(powerful families)and so on, so that it seems possible to investigate the spatial differentiation in ancient Kyusyu. This study examines the spatial organization and the change of spatial system in ancient Kyusyu, south-western Japan, on the basis of the fruitful results which Japanese historical-geographical research has obtained in the recent quater century.The conclusions are summarized as follows :First, Kyusyu could be divided into 3 regions in Kofun age(ca. 4- 7th century) ; the northern Kyusyu district which had a close relation to the regal authority in Kinki district, the district on the Ariake Sea which seems alike the northern Kyusyu district in the first half of Kofun age but showed regional originality in the latter half of the age, and southern Kyusyu district which showed regional originality throughout the age.Second, to emphasize as before that the arrangement of buildings in the center of Kokufu depends upon the city plan which the regal authority formed is not necessarily correct. The arrangement of the buildings in the center of Hizen Kokufu was alike that of Dazaifu(ancient capital of Kyusyu), but that of Tikugo Kokufu was not similar to that of Dazaifu.Third, it seems that Kokufu was located a place where the power of gozoku was relatively vacant. It could be possible that the construction of Kokufu was undertaken in cooperation with the influential gozoku in the province where the influential gozoku existed and the spatial organization was achieved.