Spatio-temporal Variation of Landuse Carbon Budget and Carbon Compensation Zoning in Beibu Gulf Urban Agglomeration Area

Wang Zhengqiang; Qin Menglin; Tang Shibin; Zhao Yincheng; Pang Yayue; Gong Yuanhong

doi:10.13961/j.cnki.stbctb.20220829.001

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Spatio-temporal Variation of Landuse Carbon Budget and Carbon Compensation Zoning in Beibu Gulf Urban Agglomeration Area

- Spatio-temporal Variation of Landuse Carbon Budget and Carbon Compensation Zoning in Beibu Gulf Urban Agglomeration Area
- Bulletin of Soiland Water Conservation Vol. 42, Issue 5, Pages: 348-359(2022)
- 作者机构：
  
  1. 广西大学林学院,广西,南宁,530004
  2. 广西大学土木建筑工程学院,广西,南宁,530004
  3. 广西大学土木建筑工程学院人居环境设计研究中心,广西,南宁,530004
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.20220829.001
  CLC： X321
- Published：2022
- 稿件说明：
移动端阅览
Wang Zhengqiang, Qin Menglin, Tang Shibin, et al. Spatio-temporal Variation of Landuse Carbon Budget and Carbon Compensation Zoning in Beibu Gulf Urban Agglomeration Area[J]. Bulletin of Soiland Water Conservation, 2022, 42(5): 348-359.
DOI：

Wang Zhengqiang, Qin Menglin, Tang Shibin, et al. Spatio-temporal Variation of Landuse Carbon Budget and Carbon Compensation Zoning in Beibu Gulf Urban Agglomeration Area[J]. Bulletin of Soiland Water Conservation, 2022, 42(5): 348-359. DOI： 10.13961/j.cnki.stbctb.20220829.001.

摘要

[目的] 分析市域空间尺度对城市群碳收支时空格局演变特征及耦合协调关系，构建碳补偿分区评价体系，为实现碳中和目标提供城市群层面的实施策略参考。[方法] 以北部湾城市群为例，在分析2000，2010，2020年研究区土地利用碳收支时空分异及耦合协调度分析的基础上，结合熵权法和TOPSIS法测算2020年15个城市碳补偿贴近度，构建碳补偿综合评价体系并引入三维魔方单元模型初步构建碳补偿等级进行功能分区研究。[结果] ①2000—2020年北部湾城市群碳收支量呈现整体上升状态，市域尺度主体碳排放区域呈现“核心—外围”结构，主体吸收区域呈现“倒钩”状空间格局。②2000—2020年该区城市群碳源、碳汇在分异格局上，除广西区域呈现西北—东南方向，其余地区均呈现东北—西南为主导的方向，空间分布重心稳定。③2000—2020年城市群内部碳源与碳汇坐标均高于0.5，碳排放与碳吸收水平较高，两者具有较高的耦合协调性。[结论] 北部湾城市群的碳收支存在明显的时空异质性，碳排放与碳吸收耦合协调程度较高。为了进一步探索实现“双碳”目标多元化路径，北部湾城市群未来应多方面考虑区域资源能力、碳排放强度和经济发展条件等，从而健全城市群区域间碳补偿体制。

Abstract

[Objective] The evolution characteristics and coupling coordination relationship between the spatial scale of cities

and the spatiotemporal pattern of the carbon budget in urban agglomeration areas were analyzed

and a regional evaluation system for carbon compensation was constructed in order to provide a reference for implementing strategies at the urban agglomeration level to achieve the goal of carbon neutrality. [Methods] Based on an analysis of the spatial and temporal variation of land use carbon income and expenditure and the coupling coordination degree in the Beibu Gulf urban agglomeration area in 2000

2010

and 2020

the entropy weight method and TOPSIS method were combined to measure the carbon compensation closeness of 15 cities in 2020 in order to construct a comprehensive evaluation system of carbon compensation and to introduce a three-dimensional magic square unit model to initially construct carbon compensation levels for functional zoning research. [Results] ① From 2000 to 2020

the carbon balance of the Beibu Gulf urban agglomeration showed an overall increase

the main carbon emission area at the municipal scale showed a “core-periphery” structure

and the main absorption area has shown a “barb” spatial pattern. ② From 2000 to 2020

the carbon sources and sinks in the Beibu Gulf urban agglomeration area showed a northwest-southeast direction

except for the Guangxi region that showed a northeast-southwest dominant direction

with a stable spatial distribution center of gravity. ③ From 2000 to 2020

the coordinates of carbon sources and carbon sinks in the urban agglomeration area were greater than 0.5. Furthermore

the level of carbon emission and carbon absorption were high

showing relatively high coupling coordination. [Conclusion] There was obvious spatio-temporal heterogeneity in the carbon budget of the Beibu Gulf urban agglomeration

and the degree of coupling coordination between carbon emissions and carbon absorption were high. In order to further explore diversified paths to achieve the “double carbon” goal

regional resource capacity

carbon emission intensity

and economic development conditions should be considered in the future so that the inter-regional carbon compensation system of urban agglomeration areas can be improved.

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