A method for city-level high-resolution CO<sub>2</sub> emission inventories： a case study of Yingkou

LI Xuan; GAO Bei; LIU Xinyao; GUO Weihua; SUN Zhaonan; PAN Yujin

doi:10.13205/j.hjgc.202504020

Volume 43 Issue 4

Apr. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(4): 204-212

LI X，GAO B，LIU X Y，et al.A method for city-level high-resolution CO2 emission inventories： a case study of Yingkou［J］.Environmental Engineering，2025，43（4）：204-212. doi: 10.13205/j.hjgc.202504020

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A method for city-level high-resolution CO₂ emission inventories： a case study of Yingkou

doi: 10.13205/j.hjgc.202504020

1. Liaoning Ecological Environment Protection Technology Center, Shenyang 110031, China;
2. Liaoning Provincial Key Laboratory of Energy Storage and Utilization, Yingkou Institute of Technology, Yingkou 115014, China

Received Date: 2024-02-21
Accepted Date: 2024-05-06
Rev Recd Date: 2024-03-27
Publish Date: 2025-04-01

Abstract

Abstract

A carbon emission inventory with high-spatial-resolution covering various fields is an important foundation for cities to implement precise carbon reduction policies. A method for city-level high-resolution CO₂ emission inventories was proposed. Based on the provincial energy balance table， the economic and industrial indexes， population， roads， land use， and points of interest （POI） data were applied to establish a 1 km × 1 km CO₂ emission inventory for Yingkou in northestern China. The results showed that the total CO₂ emissions in Yingkou in 2020 reached 17.9327 million tons， consisting of 18.0084 million tons from energy consumption and -0.0722 million tons from land use. In terms of energy consumption emissions， the main sources were concentrated in manufacturing and coal consumption. CO₂ emissions from manufacturing accounted for 69.94%， and CO₂ emissions from coal consumption accounted for 53.56%. The spatial agglomeration effect of CO₂ emissions was obvious. Among the 5550 grids， CO₂ emissions from 18 extremely high-emission grids （≥ 50000 tons） accounted for 68% of the total city， while CO₂ emissions from 37 high-emission grids （≥ 20000 tons） accounted for 90%. As for the space distribution of key industries， the emissions from the steel making and power thermal industries were relatively concentrated， whereas the grid emissions from the non-ferrous and non-metallic mineral product industries showed gradient differences.High-emission grids from other industries were mainly distributed in areas with rapid economic development and dense population. It is necessary to conduct localized research on emission factors， improve the basic data statistical system and CO₂ accounting for key enterprises to enhance the accuracy of city-level CO₂ emission inventories.
- energy balance table,
- land use,
- Yingkou,
- CO₂ emission inventory,
- spatial distribution

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