Planning nature-based solutions for water management and circularity in Ljubljana, Slovenia: Examining how urban practitioners navigate barriers and perceive institutional readiness

Abstract

Nature-based Solutions (NBS) and the circular economy offer new opportunities for water management and water circularity in cities. In the process towards circular water NBS planning and implementation, urban practitioners such as urban planners and environmental/water engineers operate as facilitators and change agents due to their technical expertise. Moreover, from their professional standpoint, they can navigate barriers and influence key actors of institutional readiness of cities to uptake NBS. This study aims (i) to explore the barriers that urban professionals face towards the widespread mainstreaming and implementation of NBS for water management and circularity in Ljubljana, and (ii) to understand the perceived institutional readiness for planning NBS for water management and circularity in the city. Through 14 semi-structured expert interviews, and following a content discourse analysis, three overarching topics emerged: urban planning, urban design, and NBS implementation. The findings reveal the institutional readiness of Ljubljana to adopt and upscale solutions like NBS, although barriers still persist: misalignment of strategic goals, institutional fragmentation, lack of supportive policy and legal frameworks (procurement rules, urban design laws), and limited citizen involvement. New approaches and skilled knowledge brokers are required in order to change the narrative of water being perceived as a problem, and to mainstream NBS for water circularity across the city in the future.