关键词: 城市管理, 温室气体, 碳排放, 碳达峰, 减排策略, 成都市

Abstract: Urban management, as one of the sources of urban greenhouse gas emissions, involves environmental sanitation management, solid waste collection, transportation and disposal and urban lighting management, etc. The 2021 greenhouse gas emissions study in the field of urban management in Chengdu indicated that solid waste collection, transportation and disposal was the most important source of greenhouse gas emissions, accounted for more than 95.81%. Followed by urban lighting management and environmental sanitation management, with emission contributions of 1.87% and 1.82%, respectively. Future scenario analysis demonstrated that the greenhouse gas emissions would decline rapidly with the increase of domestic waste incineration disposal rate, reached the lowest level in 2025. Then showed a slow increase trend with the growth of domestic waste collection and transportation scale. The emission contribution of solid waste collection, transportation and disposal was 94.66% when the peak was reached in 2030. At the same time, the emission contribution ratio of urban lighting management and municipal road, bridge and utility tunnel maintenance would rise to 2.80% and 1.20%, respectively. The contribution of environmental sanitation management emissions would fall to 1.07%. Finally, the countermeasures and suggestions for carbon emission reduction by urban management departments were proposed under the background of carbon peaking and carbon neutrality.

Key words: urban management, greenhouse gases, carbon emissions, carbon dioxide peaking, emission reduction strategy, Chengdu city