PDF
Full
Outline
Under the major strategic deployment of a dualcarbon strategy, studying the whole lifecycle carbon emissions of rail transit and reasonably quantifying its carbon emission level is essential to achieve peak carbon and carbon neutrality in the transportation sector. Based on a new metro line in Beijing, this study analyzes the whole lifecycle carbon emissions of rail transit, establishes a carbon emission calculation model for the whole line and the whole lifecycle of rail transit, and quantitatively calculates the carbon emission of the whole line and the whole lifecycle of the new metro line. Carbon reduction measures in the construction and operation phases are analyzed simultaneously, and their carbon reduction potential is quantitatively assessed. The carbon emission calculation for the 81km long new metro line yields a carbon emission of 2.57 million tons of CO2eq in the construction phase, 54,000 tons of CO2eq per year in the operation phase, and a total carbon emission of 5.24 million tons of CO2eq in the 50year operation cycle. The use of renewable materials and prefabricated structures in the construction phase can reduce carbon emissions by 7%. The use of comprehensive carbonreducing measures in the operation phase can reduce carbon emissions by 27%, and the carbon reduction potential of the 50year operation cycle is 17%. The establishment of the model has guiding significance for the quantitative calculation of carbon emissions in the whole life cycle of urban rail transport, and the research results of the carbon reduction measures can provide a reference for urban rail transport to achieve a green and lowcarbon transformation and carbon peak and carbon neutrality in the transport sector.
PDF
535
227
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
