香港城市垃圾填埋场的发展历程及景观改造策略研究

Research on the Development History and Landscape Renovation Strategy of Hong Kong Landfills

封场垃圾填埋场的景观改造是中国香港地区对已开发土地进行综合再利用的重要举措。有别于将封场垃圾填埋场作为城郊绿化种植区的常规方式,香港地区已关闭的垃圾填埋场不仅多分布于城区内,而且景观改造的目标多样。首先,回溯了香港地区垃圾填埋场的独特发展历程,揭示不同时期推动填埋场发展的多元动因。其次,从城市发展的视角分析填埋场外部环境的变化对填埋场景观产生的整体性影响。通过梳理填埋场改造三阶段的总体技术路线,以及各阶段的工程策略和前后阶段之间存在的紧密联系,总结香港地区垃圾填埋场景观改造的基本策略与方法,以期为国内其他高密度城市地区垃圾填埋场的景观改造提供思路与方法层面的借鉴。

Landscape renovation of landfill is an important measure for comprehensive reuse of developed land in Hong Kong.It is different from the conventional way that the closed landfill site is used as the suburban greening planting area,the closed landfills in Hong Kong are not only distributed in urban areas,but also have various targets for landscape renovation.This paper first reviews the unique development process of Hong Kong landfill and reveals the multiple motivations for promoting the development of landfill in different periods.Secondly,from the perspective of urban development,the overall impact of the change of the external environment on the landfill landscape is analyzed.By sorting out the overall technical route of landfill reconstruction in three stages,and the engineering strategy for each phase,and the close relationships that exist between the phases,the basic strategies and methods of landscape renovation of landfill in Hong Kong are summarized,in order to provide ideas and methods for the landscape renovation of landfill sites in other high-density cities in China.