【摘要】 城市生活垃圾焚烧已成为我国垃圾行业温室气体排放的主要来源，而对于运输过程中的温室气体排放特别是中小城市却关注较少。中小城市由于较慢的技术革新和不规范的管理可能引起较多的运输频次，从而造成较高的温室气体排放。为量化湛江市区生活垃圾收运环节运输车辆的温室气体排放情况和减排潜力，结合湛江市区的实际运输情况，基于《2006 IPCC Guidelines for National Greenhouse Gas Inventories》构建了温室气体排放核算模型，同时借助蒙特卡洛模拟方法进行变量模拟。结果表明：湛江市区生活垃圾收运环节运输车辆的温室气体排放量（以CO₂计）为5.20～5.44 t/d，碳排放当量（以CO₂计）为3.47～3.63 kg/t，且其随着运输里程的增加显著增加。湛江市区生活垃圾运输环节的温室气体减排潜力较大，未来可通过路径优化、合理选址和建设垃圾转运站及处理设施、应用信息化收运管理系统、投运清洁能源垃圾转运车等措施来降低温室气体排放量。以赤坎区为例，若全部垃圾转运车更换为大型纯电动转运车，则温室气体减排量可达86.52%，运营5 a后使用成本将减少3 188万元。本研究可为优化生活垃圾运输路径和制定相关环境管理策略提供科学依据。更多还原

【Abstract】 Municipal solid waste incineration has become a major source of greenhouse gas(GHG)emissions in China’s MSW treatment sector,while the GHG emissions during the transportation process have received less attention,especially in small and medium-sized cities.The slower pace of technological innovation and non-standard management in these cities may lead to higher GHG emissions due to unreasonable transportation routes and frequencies.To quantify the GHG emissions and reduction potential of transportation vehicles in the MSW collection and transportation link of Zhanjiang city,a GHG emission accounting model based on the actual transportation situation in Zhanjiang city was constructed,in accordance with 2006 IPCC Guidelines for National Greenhouse Gas Inventories,and the Monte Carlo simulation method was used for variable simulation.The results indicated that the GHG emissions from transportation vehicles of MSW collection and transportation chain in Zhanjiang city ranged from 5.20 t/d to 5.44 t/d,and carbon emission equivalent was 3.47-3.63kg/t,which significantly increasing with the transportation distance.There is a considerable potential for GHG emission reduction in MSW transportation of Zhanjiang city.In the future,GHG emissions can be reduced through measures such as route optimization,rational siting,construction of MSW transfer stations and treatment facilities,application of informationbased collection and transportation management systems,and commissioning clean-energy MSW transfer vehicles.Taking Chikan district as an example,if all MSW transfer vehicles are replaced with large-scale new energy-pure electric transfer vehicles,the reduction of GHG emissions can reach 86.52%,and the cost of using the transfer vehicles will be reduced by 31.88 million yuan after five years of operation.This study provides a scientific basis for optimizing MSW transportation routes and developing associated environmental management strategies.更多还原