A Review of Lifecycle Assessment of Bioretention Systems
摘要
Bioretention systems are a fundamental element of Water Sensitive Urban Design (WSUD), offering decentralised, nature-based solutions for managing urban stormwater. While the water quality and hydrologic benefits of bioretention systems are well established, their long-term environmental and operational impacts are less frequently assessed through rigorous lifecycle assessment (LCA). This review synthesises recent literature to identify the methodologies, data requirements, software tools, and impact assessment methods used in LCA studies of bioretention systems. Key LCA tools such as openLCA, SimaPro, and TRACI, along with databases like Ecoinvent and AusLCI, are evaluated for their applicability to stormwater infrastructure. Based on a monitoring project of six bioretention basins at The Ponds suburb in Blacktown City Council, Australia, this paper explores important aspects (such as data collection) of LCA of this bioretention system. This review concludes with future research directions, including dynamic LCA integration, regional database development, and coupling with economic and spatial planning tools to support resilient and sustainable urban infrastructure.