Assessing the potential of decarbonizing China's building construction by 2060 and synergy with industry sector
Assessing the potential of decarbonizing China's building construction by 2060 and synergy with industry sector
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DOI：
10.1016/j.jclepro.2022.132086
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发表时间：
2022-07
影响因子：
11.1
通讯作者：
Yang Zhang;Shan Hu;Fei Guo;A. Mastrucci;Shaohui Zhang;Ziyi Yang;Da Yan
中科院分区：
文献类型：
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作者：
Yang Zhang;Shan Hu;Fei Guo;A. Mastrucci;Shaohui Zhang;Ziyi Yang;Da Yan
建筑业的固定碳排放量占碳排放量的大部分。建筑存量发展路径、建设模式的选择以及建筑业与工业部门的协同效应将对未来中国建筑业隐含碳排放产生重要影响。研究的主要目的是分析不同路径选择下中国建筑业的碳排放量，为政策制定者提供量化支持，帮助中国建筑业实现低碳发展。因此，我们开发了中国建筑施工模型来说明建筑存量、材料存量和隐含碳排放之间的关系。研究结果表明，合理控制建筑存量、避免过早拆除延长建筑使用寿命、鼓励建筑改造等措施可以显著降低建筑材料需求和建筑材料生产的碳强度。到2060年，通过这些措施可以实现70%以上的碳排放减少。此外，低碳发展依赖于回收和提高建筑材料生产效率;这样，到2060年，隐含碳排放量可以减少近50%。
Embodied carbon emissions of the building sector constitute the majority of carbon emissions. The selection of a building stock development pathway, construction mode, and synergy between the building construction and industry sectors will greatly influence the future embodied carbon emissions in China's building sector. The main purpose of this study is to analyze the carbon emission related to China's building construction under different path choices, to provide quantitative support for policy makers, helping to realize low-carbon development in China's construction sector. So, we developed the China Building Construction Model to illustrate the relationship between building stock, material stock, and embodied carbon emissions. The results show that controlling the total building stock at a reasonable level, extending the building lifetime by avoiding the buildings' early demolition, and encouraging building retrofitting can significantly reduce the material demand of construction as well as the carbon intensity of the production of building materials. Over 70% of the reduction in carbon emissions can be realized through these measures by 2060. Moreover, low carbon development depends on recycling and increased efficiency in producing building materials; this way, embodied carbon emissions can be reduced by nearly 50% by 2060.