The construction period of the city walls required a large amount of earthworks,which were often accompanied by the excavation of water drains and city trenches.With its low elevation,the urban water drainage and the trench system construction were closely related to the planning and construction of Quanzhou City during the Tang and Song dynasties.The relative positions of the temple and the government office complex,the planning of the Zicheng and Luocheng,and the Bagua Ditches,named as such despite lacking the visual representation of eight trigrams,are many examples of its association with the meaning of Yi.The Bagua Ditches is a dynamic component of this urban system that constantly produces material exchange with the natural environment.It is also a demonstration of the combination of ancient Chinese ideological and cultural theories,the cognition of nature,and engineering techniques in the construction of Quanzhou City.Quanzhou City was built after the introduction of Buddhism into China,and its overall pattern was formed during the emergence of Neo-Confucianism,reflecting the thought and practice of urban construction in the intellectual world where Buddhism,Taoism,and Confucianism coexisted during the Tang and Song Dynasties.
Quanzhou CityTang and Song DynastiesSpacial PatternBagua Ditches
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