禁裏御用水の構成と周辺園池との関係

Abstract

現在の京都御苑周辺に歴史上設けられた数多くの園池へは，禁裏御用水が供給されていた．本研究では，広域的な導配水システムとしての禁裏御用水に着目し，その流路構造や付帯施設を歴史的資料を用いて明らかにした．その結果，禁裏御用水の4つの施設面の特徴とマネジメントルールを抽出し，禁裏御用水が水の安定供給に加えて上流の田畑と下流の園池での水の共用にも配慮していたことを示した．更に，各園池への導水経路を検証し，水の引き込み方の特徴として，相国寺開山塔庭園の特殊性と御溝水の自由度の高さを指摘した．

Kyoto Gyoen today and its surroundings is an area where many ponds of gardens have been constructed. These ponds used to be irrigated by "Kinri Goyosui" (the canal for Kyoto Imperial Palace) taking the water from the River Kamo. This paper aims to reveal the configuration of "Kinri Goyosui" through an analysis of historical documents. As a result, we can point out four characteristic mechanics and a management rule of "Kinri Goyosui" for sharing water resources between upstream farms and downstream ponds. Moreover, by examining the route of channels to supply water to the ponds, we can reveal particularity of the pond in the garden of Kaisanto in Shokokuji temple and flexibility of water supplying system of "Mikawa-mizu" (the channels around the palaces and the residences).