一带一路 "沿线国家在用钢材内含碳排放量的时空格局

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2024-11-27 DOI:10.1016/j.resconrec.2024.108038

Liang Zhong , Yongpeng Lin , Miao Yang , Yuanrong He , Xiaosheng Liu , Peng Yu , Zhiying Xie

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引用次数: 0

摘要

在用钢材库存（IUSS）的内含碳排放量（ECE）对城市可持续性和气候目标至关重要，但目前仍缺乏相关的时空信息。本研究利用多源时空数据开发了一种动态估算方法，评估了 "一带一路"（B&R）沿线 67 个国家从 1992 年到 2020 年的在用钢材库存嵌入式碳排放时空动态。结果表明，1992 至 2020 年间，"一带一路 "地区 IUSS 的大幅增长导致 ECE 增加了 24 GtCO2，其中 2005 年是加速增长的转折点。单位面积的欧洲经委会强度从 3.4 ktCO2/km2 增加到 5.9 ktCO2/km2，主要集中在 B&R 东部地区。时空分析揭示了整个 B&R 地区欧洲经委会的地区趋同效应，表明地理关系对欧洲经委会的演变有重大影响。此外，该研究还强调了短流程炼钢技术、清洁能源供应以及促进跨区域资源循环对 IUSS 脱碳的重要意义。

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Spatiotemporal pattern of embodied carbon emissions from in-use steel stock in countries along the Belt and Road

Embodied carbon emissions (ECE) from in-use steel stocks (IUSS) are crucial for urban sustainability and climate goals, yet relevant spatiotemporal information is still lacking. This study employs multi-source spatiotemporal data to develop a dynamic estimation method, evaluating the spatiotemporal dynamics of IUSS-ECE across 67 countries along the Belt and Road (B&R) from 1992 to 2020. The results indicate that a significant increase in IUSS in the B&R region led to a 24 GtCO₂ rise in ECE between 1992 and 2020, with 2005 marking a turning point for accelerated growth. ECE intensity per unit area increased from 3.4 to 5.9 ktCO₂/km², mainly in eastern B&R regions. Spatiotemporal analysis reveals the area convergence effect in ECE across the B&R, indicating that geographical relationships significantly influence ECE evolution. Additionally, the study emphasizes the significance of short-process steelmaking technology, clean energy supply, and promoting cross-regional resource circulation for the decarbonization of IUSS.

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来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.