Living Cultural Infrastructure as a Model for Biocultural Conservation: A Case Study of the Maekha Canal, Chiang Mai, Thailand

This paper introduces and defines ‘Living Cultural Infrastructure’ as dynamic social-ecological systems where plant heritage and community knowledge are co-produced to reclaim degraded urban landscapes. Addressing the dual challenges of ecological degradation and cultural erosion, we demonstrate this concept through a case study on the Maekha Canal in Chiang Mai, Thailand, employing Participatory Landscape Architecture integrated with urban ethnobotany. Through co-design workshops, biocultural spatial analysis, and ethnobotanical surveys involving 20 key community members, the project engaged residents to reclaim the canal as a functional biocultural corridor. The research documented 149 culturally significant plant species and resulted in a co-created trail system that embodies the principles of a living infrastructure, fostering intergenerational knowledge exchange and strengthening community stewardship. This study demonstrates how a participatory, ethnobotany-informed process can regenerate degraded urban waterways into Living Cultural Infrastructure. The research advances a new paradigm for landscape architecture by providing replicable governance and design tools.