Spatial Patterns of Carbon Emission from Land Use and Carbon Balance Partitioning in Chengdu-Chongqing Economic Zone

Deng Yuanjie; Chen Hang; Hai Yifeng; Zhou Jiani; Jize Dingdi; Luo Ji; Li Lan

doi:10.13961/j.cnki.stbctb.2024.05.036

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Spatial Patterns of Carbon Emission from Land Use and Carbon Balance Partitioning in Chengdu-Chongqing Economic Zone

- Spatial Patterns of Carbon Emission from Land Use and Carbon Balance Partitioning in Chengdu-Chongqing Economic Zone
- Bulletin of Soiland Water Conservation Vol. 43, Issue 5, Pages: 337-346(2024)
- 作者机构：
  
  1. 四川轻化工大学经济学院,四川,自贡,643000
  2. 四川轻化工大学经济学院农业经济研究中心,四川,自贡,643000
  3. 宜宾市农业科学院,四川,宜宾,644000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2024.05.036
  CLC： X321;F301.24
- Published：2024
- 稿件说明：
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Deng Yuanjie, Chen Hang, Hai Yifeng, et al. Spatial Patterns of Carbon Emission from Land Use and Carbon Balance Partitioning in Chengdu-Chongqing Economic Zone[J]. Bulletin of Soiland Water Conservation, 2024, 43(5): 337-346.
DOI：

Deng Yuanjie, Chen Hang, Hai Yifeng, et al. Spatial Patterns of Carbon Emission from Land Use and Carbon Balance Partitioning in Chengdu-Chongqing Economic Zone[J]. Bulletin of Soiland Water Conservation, 2024, 43(5): 337-346. DOI： 10.13961/j.cnki.stbctb.2024.05.036.

摘要

[目的] 在“双碳”目标下，研究土地利用对碳排放、碳吸收以及碳平衡的影响，为国土空间规划提供依据。[方法] 以成渝经济圈作为研究区，基于土地利用和社会经济数据，并采用系数法测算研究区2000—2022年的碳收支量并探讨其时空格局差异，通过经济贡献率和生态承载系数从多角度对处理后的结果进行碳平衡分区，并提出具有针对性的策略。[结果] ①碳排放量总体上呈现上升趋势，耕地和建设用地是最主要的碳源，在空间上主要分布在研究区域的成都平原地区以及重庆市区。②碳吸收总量呈现上升趋势，碳汇的主要来源为林地，在空间上主要分布在研究区域周边的山区。③净碳排放总量增幅达273%。实现碳平衡县域由23个减少至10个。④基于碳平衡分析，根据净碳排放量、经济贡献率等指标，将优质农产品产区等区域划分为低碳发展区，人稠地窄的核心发达区域划分为碳强度控制区，传统工业区域划分为高碳优化区，将生态屏障区划分为碳汇功能区。[结论] 成渝经济圈碳排放时空差异具有相应规律性，碳吸收空间较稳定，可以根据国土分区优化方案对土地资源利用结构进一步进行更精细化调整，推动经济圈低碳发展和可持续发展。

Abstract

[Objective] Under the “double carbon” goal

the impact of land use on carbon emission

absorption

and balance was examined to provide a basis for national spatial planning. [Methods] The Chengdu-Chongqing economic zone was taken as the study area

based on land use and socio-economic data

and the coefficient method was adopted to measure the carbon balance of the study area from years 2000 to 2022. The study then explored the differences in the spatial and temporal patterns of the area and conducted carbon balance zoning of the processed results from multiple perspectives using the economic contribution rate and ecological carrying capacity coefficient. Lastly

a targeted strategy was proposed. [Results] ① Carbon emissions generally showed an upward trend

and cropland and construction land were the most important sources of carbon. These land types were spatially distributed mainly in the Chengdu Plain and Chongqing metropolitan areas of the study area. ② The total amount of carbon sequestration showed an upward trend

and the main source of carbon sinks was forest land

which was spatially distributed mainly in the mountainous areas around the study area. ③ Total net carbon emissions increased by 273%. The number of counties achieving carbon balance reduced from 23 to 10. ④ Based on carbon balance analysis

indicators of net carbon emissions

and economic contribution rate

among others

high-quality agricultural production areas were classified as low-carbon development zones

densely populated and narrowly developed core areas as carbon-intensity control zones

traditional industrial areas as high-carbon optimization zones

and ecological barrier zones as carbon sink functional zones. [Conclusion] The spatial and temporal differences in carbon emissions in the Chendu-Chongqing ecomic zone had corresponding regularities

and the carbon absorption space were more stable. Therefore

to promote the low-carbon and sustainable development of the economic zone

the land resource utilization structure can be further adjusted in a more refined way according to the land zoning optimization plan.

关键词

Keywords

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