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| Carbon emission accounting of open-pit mining in high-altitude and cold regions |
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Received:June 21, 2025
Revised:July 12, 2025
Accepted:September 25, 2025
Published Online:April 30, 2026
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| DOI：10.3969/j.issn.1005-7854.2026.01.019 |
| KeyWord:carbon emissions;mining machinery;Julong copper mine;high altitude and cold weather;accounting model |
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| 1.Zijin School of Geology and Mining, Fuzhou University, Fuzhou 350108, China;2.Shandong Hualian Mining Co. Ltd., Yiyuan 256119, Shandong, China |
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| Abstract: |
| The high-energy-consuming and high-emission mining industry is one of the important links in achieving the goals of energy conservation, emission reduction and carbon neutrality. Traditional carbon emission models underestimate the impact of temperature and altitude on carbon emissions from open-pit mining in high-cold and high-altitude areas. Taking the Julong Copper Mine in Xizang as an example, the IPCC inventory factor method was used to reconstruct the carbon emission response model considering temperature and altitude, and the carbon emission indicators of open-pit mining in high-cold and high-altitude areas were calculated. The results indicate that dump trucks are the primary source of direct carbon emissions, with a maximum diesel consumption of 12 580 kg·h?1 and an hourly carbon emission of up to 38 996 kg·h?1, exceeding the combined emissions of other equipment. Temperature and altitude significantly affect the mechanical power of mining equipment, with engine power declining by 49% and a temperature correction factor reaching 1.06 in winter. Based on the mining characteristics, management strategies such as optimizing dump trucks, adjusting transportation routes, and modifying the loader-to-truck ratio are proposed to reduce carbon emissions. Accurately accounting for carbon emissions from open-pit mining in high-altitude and cold regions contributes to refining national carbon emission accounting models and supports the formulation of national carbon reduction policies. |
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