生态环境分区管控减污降碳协同技术路径实践探索以邹平市为例

Exploration of technical paths for collaborative pollution and carbon reduction under ecological environment zoning control: a case study of Zouping City

  • 摘要: 开展生态环境分区管控减污降碳协同研究,是“双碳”背景下强化生态环境保护政策协同、促进绿色低碳发展的重要支撑。以邹平市为例,评估研究区域内重点工业行业碳排放现状,用清单网格化的方式识别大气污染物与碳排放的双高值区域,构建碳污一体化清单;运用卫星遥感、激光雷达等手段开展碳汇空间研究,识别碳汇重点区域与重点种类;针对重点行业,形成减污降碳协同措施库,采用协同控制效应分级指数法分析减污降碳协同性,提出生态环境准入清单优化建议。结果显示:2020年邹平市规模以上工业企业碳排放量约为5 867万t,热电联产、炼焦、铝冶炼加工等为重点行业;全市在韩店镇、魏桥镇、长山镇、高新街道等重点区域存在4处碳污高排放物网格,电解铝、焦化等重点企业集中了大部分碳污排放;2020年邹平市平均植被碳汇强度为364 t/(km2·a),年植被碳汇量为45万t,碳汇主要集中在九户镇、码头镇、魏桥镇和临池镇,耕地和林地是主要的碳汇系统类型,在各管控单元中应根据区域行业特点与植被碳汇类型推进产业优化升级、工艺升级改造、林地碳汇提质增效等措施。本研究提出的减污降碳协同纳入生态环境分区管控体系的技术路径,为减污降碳协同要求结合生态环境准入清单优化提供了支撑。

     

    Abstract: Conducting research on collaborative pollution and carbon dioxide (CO2) reduction through ecological environment zoning control is crucial for strengthening the coordination of ecological and environmental protection policies and promoting green and low-carbon development in the context of China's "dual-carbon" goals. Taking Zouping City as an example, we assessed the current status of CO2 emissions from key industrial sectors within the research area, identified double high-value areas of air pollutants and CO2 emissions using a gridded inventory approach, and constructed an integrated carbon and pollution inventory. We employed satellite remote sensing, lidar, and other methods to conduct carbon sequestration space research, and identified key areas and species for carbon sequestration. We developed a database of collaborative pollution and CO2 reduction measures for key industries, analyzed the synergistic effect of collaborative pollution and CO2 reduction using a graded index method, and proposed suggestions for optimizing the ecological environment access list. The results indicated that in 2020, industrial enterprises above the designated size in Zouping City emitted approximately 58.67 million tons of CO2, with cogeneration, coking, and aluminum smelting and processing being the key industries. There were four grids with high emissions of pollutants and CO2 in key areas, such as Handian Town, Weiqiao Town, Changshan Town, and Gaoxin Street. Most emissions originated from key enterprises such as electrolytic aluminum and coking. In 2020, the average vegetation carbon sequestration intensity in Zouping City was 364 t/(km2·a), with an annual vegetation carbon sequestration volume of 450 000 t. Carbon sequestration was concentrated in Jiuhu Town, Matou Town, Weiqiao Town, and Linchi Town. Cultivated land and forest land were currently the primary carbon sequestration systems. In each control unit, measures such as industrial optimization and upgrading, process retrofitting, and improving the quality and efficiency of forest land carbon sequestration should be optimized and improved, based on the regional industry characteristics and the vegetation carbon sequestration types. The technical pathway proposed in this study for integrating pollution and CO2 emission reduction into the ecological environment zoning control can support collaborative pollution and CO2 emission reduction in combination with optimizing the ecological environment access list.

     

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