Kamata, Y.; Yoon, S.; Lee, T.; Kang, J.E. Flood Risk and CO2 Mitigation: Analysis of Climate Change Response of Greening Vacant Houses in Old Downtown Metropolitan Areas. Sustainability2024, 16, 114.
Kamata, Y.; Yoon, S.; Lee, T.; Kang, J.E. Flood Risk and CO2 Mitigation: Analysis of Climate Change Response of Greening Vacant Houses in Old Downtown Metropolitan Areas. Sustainability 2024, 16, 114.
Kamata, Y.; Yoon, S.; Lee, T.; Kang, J.E. Flood Risk and CO2 Mitigation: Analysis of Climate Change Response of Greening Vacant Houses in Old Downtown Metropolitan Areas. Sustainability2024, 16, 114.
Kamata, Y.; Yoon, S.; Lee, T.; Kang, J.E. Flood Risk and CO2 Mitigation: Analysis of Climate Change Response of Greening Vacant Houses in Old Downtown Metropolitan Areas. Sustainability 2024, 16, 114.
Abstract
This study aims to evaluate the climate-change response of greening persistently vacant houses and barren sites in deteriorated high-density residential areas in old downtown metropolitan areas. The current status of building demolition sites in Ami-dong and Chojang-dong, Busan Metropolitan City, was examined. In this area, of the 340 vacant houses from 2017, 246 (72.35%) remained persistently vacant till 2020. In 2020, 213 barren sites were neglected after building demolition. Amongst these sites, 177 (83.10%) were paved with concrete. Persistently vacant houses and barren sites were afforested, and the climate-change response was quantified in terms of flood reduction and CO2 mitigation in four scenarios (current, concrete, ground cover plants, and trees). Runoff analysis was performed using the Korea low-impact development model (K-LIDM) to assess flood mitigation. The tree scenario showed average runoff mitigations of 1.71%, 2.38%, and 3.06% in the long-term, 30-year, and 2-year rainfall scenarios, respectively. Additionally, 3058 deciduous broadleaf trees may be planted in the study area to promote CO2 mitigation. Thus, an additional annual carbon fixation of 62,123.78 kg CO2 may be expected. The greening of vacant houses and demolished sites was effective in all aspects of the climate-change response, and tree-based greening exhibited the most significant effect.
Keywords
vacant house; old downtown metropolitan areas; greening; flood mitigation; co2 mitigation; climate change
Subject
Environmental and Earth Sciences, Environmental Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
