水域城市的主题

水文地理景观需要一种独特的设计思考及实践方式，甚至一种当代设计语境下新的水理念。鉴于水域都市主义急需认知的转变，文章引用达卡城作为此理念的起点。将达卡与经历了类似爆炸式增长的其它城市区别开来的是达卡城与由壮丽河流、凶猛洪水、大量的河道淤积与陆地偏移所构成的景观之间错综复杂的关系。在三角洲变幻莫测的水文世界里，动态的河流、运河、湿地、冲积平原、农田、冲积阶地，及人类栖息地构成了城市及聚落。对这类城市的水利愿景应从其边缘的珍贵湿地和农田景观开始，引导一种整合都市生活、农业和洪泛区的理念。

Themes for an Aqueous City

A hydro-geographical landscape calls for a different measure in design thinking and practice, and even a new water ethos in contemporary design discourse. Considering that an aqueous urbanism entails an epistemic shift, this paper cites the city of Dhaka as a point of departure for such a thinking. What distinguishes Dhaka from other cities in similar growth outbursts is its deeply intertwined relationship with a landscape constructed by powerful rivers, epic floods, silting and land-shifting of monumental proportions. In that fluctuating hydrological world of the delta, cities and settlements have been structured by the dynamics of rivers, canals, wetlands, floodplains, agricultural fields, chars (silted landforms) and human habitation. An hydraulic vision for such cities has to begin from the edge of the precious landscape of wetlands and agricultural terrain, ushering a conception that integrates urbanism, agriculture, and flood terrains.