Urban Tree Life Cycle and Its Recycling Potential into Sustainable Wood Materials in Le Van Tam Park, Ho Chi Minh City

Abstract

Urban trees play a vital role in mitigating greenhouse gas emissions, regulating microclimates, and enhancing quality of life. However, in Ho Chi Minh City, dozens of trees are removed each year due to disease, aging, or infrastructure requirements, generating a large amount of biomass that remains underutilized. This study employs the Life Cycle Assessment (LCA) framework to evaluate the recycling potential of biomass from removed trees in Le Van Tam Park. Survey data from 473 trees indicate that an average of 40 trees are cut down annually. Using the OpenLCA software, the study estimates the potential reduction in CO₂-equivalent emissions and energy savings achievable through recycling the biomass into materials such as plywood or public furniture. The recycling value chain is analyzed by tree species and trunk diameter classes, covering stages from collection and classification to product design. The findings propose a tripartite collaboration model involving urban tree management agencies, recycling enterprises, and research institutions, along with an integrated policy framework linking urban planning, material standards, and low-carbon strategies. The study contributes a novel approach to life-cycle-based urban tree management and promotes circular economy development in the context of rapid urbanization in Vietnam.