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Life-cycle carbon emission calculation and reduction for rural dwellings of “hollow village”: A case study in South China
Environmental Impact Assessment Review ( IF 6.122 ) Pub Date : 2024-04-23 , DOI: 10.1016/j.eiar.2024.107514 Zujian Huang , Hao Tang , Yuhe Wen , Wenbo Sun , Hao Zhou , Borong Lin
Environmental Impact Assessment Review ( IF 6.122 ) Pub Date : 2024-04-23 , DOI: 10.1016/j.eiar.2024.107514 Zujian Huang , Hao Tang , Yuhe Wen , Wenbo Sun , Hao Zhou , Borong Lin
The “hollow village” refers to villagers retaining their household registration and housing property in rural areas while spending most of their time living in urban areas. This has emerged from China's unique urbanization process, leading to massive construction redundancy and excessive carbon emissions (CEs). In order to identify the CE characteristics and carbon reduction priorities for the rural dwellings of “hollow villages”, this study carried out a bottom-up CE analysis of a representative case in South China. First, a life-cycle CE (LCCE) framework was developed comprising the embodied CE (ECE) and operational CE (OCE). Second, a case study of a typical masonry structure was selected to calibrate the LCCE framework with actual recorded data and present the CE characteristics. The ECE was 381.3 kg CO/m in a 50-year calculation period, higher than the 289.5 kg CO/m of the OCE. As a comparison, the median ECE for the masonry structure dwellings was 301.0 kgCO/m, and the OCE under the same climate conditions was 748.5 kgCO/m in the reviewed detached houses worldwide. This highlights the high proportion of ECEs in the dwellings. Third, LCCE calculations were performed in parallel for the concrete and steel structure schemes based on the calibrated framework. Finally, carbon reduction priorities were compared to highlight the specific CEs from dwellings in the “hollow village” and propose recommendations.
更新日期：2024-04-23
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