A carbon footprint analysis of the redevelopment of former residential areas

IF 3.9 2区 社会学 Q1 URBAN STUDIES Journal of Urban Management Pub Date : 2024-06-05 DOI:10.1016/j.jum.2024.05.005
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Abstract

The negative impacts of greenhouse gas emissions, particularly CO2 emissions, have garnered widespread attention. Various old residential areas in China, built more than 20 years ago, have been undergoing urgent transformation to improve citizens’ quality of life, which may significantly reduce carbon emissions. This study developed a carbon emissions accounting framework for residential areas to account the emissions impact of residential transformation. The framework addressed the inventory classifications of landscape greening, residential buildings, water resources, solid waste, infrastructure and transportation. The consumption-based calculation model and bottom-up data collection methods were used. The results show that the transformation of two old residential areas achieved considerable carbon reductions of 17.16% and 33.37% in South and North China, respectively. The macro guidance of local policies, specifically those regarding local urban infrastructure construction, significantly aided the carbon emissions reductions. Based on the calculation results, a list of recommended technologies was proposed to reduce carbon emissions, and four measures (adding greening, improving the garbage recovery rate, separating rain and sewage and transforming envelope structures for energy savings in northern China) were recommended to promote low carbon development in residential areas.

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前住宅区重建的碳足迹分析
温室气体排放,尤其是二氧化碳排放的负面影响已引起广泛关注。中国建于 20 多年前的各种老旧住宅区亟待改造,以提高居民的生活质量,这可能会大大减少碳排放。本研究建立了住宅区碳排放核算框架,以核算住宅区改造对碳排放的影响。该框架涉及景观绿化、居住建筑、水资源、固体废弃物、基础设施和交通的清单分类。采用基于消耗的计算模型和自下而上的数据收集方法。结果表明,在华南和华北地区,两个旧住宅区的改造分别实现了 17.16% 和 33.37% 的可观碳减排量。地方政策的宏观指导,特别是地方城市基础设施建设方面的政策,对碳减排起到了显著的促进作用。根据计算结果,提出了碳减排技术建议清单,并建议采取四项措施(增加绿化、提高垃圾回收率、雨污分流和改造围护结构以节约北方地区能源)来促进居住区的低碳发展。
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来源期刊
CiteScore
9.50
自引率
4.90%
发文量
45
审稿时长
65 days
期刊介绍: Journal of Urban Management (JUM) is the Official Journal of Zhejiang University and the Chinese Association of Urban Management, an international, peer-reviewed open access journal covering planning, administering, regulating, and governing urban complexity. JUM has its two-fold aims set to integrate the studies across fields in urban planning and management, as well as to provide a more holistic perspective on problem solving. 1) Explore innovative management skills for taming thorny problems that arise with global urbanization 2) Provide a platform to deal with urban affairs whose solutions must be looked at from an interdisciplinary perspective.
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