中国城市城市城市轨道交通的碳排放:综合分析
1College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Research Institute for Intelligent Autonomous Systems, Tongji University, Shanghai 200092, PR China; Institute of Carbon Neutrality, Tongji University, Shanghai 200092, PR China.
The Science of the total environment
|February 22, 2024
概括
中国的城市铁路运输 (URT) 部门在2015-2022年期间的碳排放量增加了217%,经济活动和能源强度是关键驱动因素. 脱总体上有所改善,特别是在发达地区.
科学领域:
- 环境科学 环境科学
- 城市规划 城市规划
- 运输工程 运输工程
背景情况:
- 城市轨道交通 (URT) 系统对于不断增长的城市能源需求至关重要.
- 了解URT碳排放对于有效的减排策略至关重要.
- 中国的URT部门经历了快速扩张.
研究的目的:
- 评估中国URT部门碳排放的时空特征.
- 在URT中分析经济增长与碳排放之间的脱状态.
- 确定影响碳排放增长的主要因素在URT.
主要方法:
- 塔皮奥脱指数用于评估脱状态.
- 逻辑平均分数指数 (LMDI) 识别导致因素.
- 对2015年至2022年时空排放数据的分析.
主要成果:
- 2015年至2022年间,URT总碳排放量增加了217%,显示出显著的时空差异.
- 一类和二类城市贡献了超过85%的排放量,但碳强度较低.
- 大多数城市表现出扩张负解;发达地区显示出强烈的解,在2021-2022年整体改善.
结论:
- 能源密度和经济活动推动了URT排放的增长.
- 交通强度在I型城市起到抑制作用,但在其他城市则起到驱动作用.
- 中国的URT行业需要有针对性的减排战略.
相关概念视频
01:14The Carbon Cycle
42.4K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
42.4K
01:50Global Climate Change
28.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
28.0K