景観の記号化からみた「畿内の四至」の選定要因

行動と景観のコンテクストの対応関係

抄録

In this paper, the author attempts to approach the kinai-no-shiishi of the Nihon-shoki from both a historical geographical and a behavioural geographical viewpoint. The starting point for this study will be an examination of the special characteristics of the kinai-no-shiishi in their behavioural context. These characteristics are (1) territorial marking by (four) points, (2) their area is larger than that of shikinai (designated by kuni) (3) the inconsistency in the marking system (listings are given at the varying levels of kuni, gun, go, or place). As for (1), the author draws and explains a network map of the territory at the time, based on successes in the field of ethology in network cognition. It is proposed that the characteristics in (2) and (3) arose from the fact that in defensive behaviour, the most defendable point is chosen as the first point. In addition, (2) and (3) are explained from the standpoint of boundary marking behaviour. Also with (1), it is shown that shiishi were narrowed down from all defensive points based on whether they posessed traits as boundary markers or not. For the verification of these proposed explanations based on behavioural geographical approaches, methodology from traditional historical geography was used.
Next, the author proposes a correspondence between behavioural context and landscape context, and attempts to interpret kinai-no-shiishi in the context of landscape semiotics, based on the relation between people and landscape as treated in research on environmental perception in behavioural geography (which has in turn been influenced by environmental psychology and architecture). Landscape semiotics is a method for inscribing landscape in architectural spaces employed by P. Thiel. As a result, it was found that the landscape contexts of the shiishi were all the same. Furthermore, a correspondence was proven between the landscape context of shiishi and network cognition, defense behaviour and marking behaviour.