国土空间功能与土地利用碳排放的脱钩效应及驱动机制研究——以平陆运河经济带为例

doi:10.16258/j.cnki.1674-5906.2026.05.006

生态环境学报 ›› 2026, Vol. 35 ›› Issue (5): 725-737.DOI: 10.16258/j.cnki.1674-5906.2026.05.006

国土空间功能与土地利用碳排放的脱钩效应及驱动机制研究——以平陆运河经济带为例

文少强¹^,²(), 胡宝清²^,^*(), 包婷¹^,², 谢薇薇¹^,², 劳茵茵¹^,², 高劲松²

¹ 南宁师范大学自然资源与测绘学院，广西南宁 530100
² 南宁师范大学/北部湾环境演变与资源利用教育部重点实验室/广西地表过程与智能模拟重点实验室，广西南宁 530100

收稿日期:2025-07-17 修回日期:2025-11-05 接受日期:2025-12-22 出版日期:2026-05-18 发布日期:2026-05-08
通讯作者: *E-mail: hbq1230@nnnu.edu.cn
作者简介:文少强（2000年生），男，硕士研究生，研究方向为土地利用与区域发展。E-mail: 1254191480@qq.com
基金资助:
广西科技重大专项(桂科AA23062039-2);国家自然科学基金项目(42071135)

Research on the Synergistic Path of Optimisation of Territorial Spatial Functions and Carbon Emissions Reduction: Analysis of Decoupling Effect Based on Pinglu Canal Economic Belt

WEN Shaoqiang¹^,²(), HU Baoqing²^,^*(), BAO Ting¹^,², XIE Weiwei¹^,², LAO Yinyin¹^,², GAO Jinsong²

¹ School of Natural Resources and Surveying and Mapping, Nanning Normal University, Nanning 530100, P. R. China
² Key Laboratory of Beibu Gulf Environmental Evolution and Resource Utilisation, Ministry of Education/Guangxi Key Laboratory of Surface Processes and Intelligent Simulation/Nanning Normal University, Nanning 530100, P. R. China

Received:2025-07-17 Revised:2025-11-05 Accepted:2025-12-22 Online:2026-05-18 Published:2026-05-08

摘要/Abstract

摘要：

为深入探讨国土空间功能演变与土地利用碳排放的耦合关系，以服务于平陆运河经济带的高质量与可持续发展。构建基于“生产、生活、生态”视角的国土空间功能评价体系，识别2010－2022年区域功能演变特征；以地类面积与碳排放系数测算直接碳排放，采用“自上而下”方法估算间接碳排放；并耦合Tapio模型与LMDI方法，分析国土空间功能与碳排放之间的脱钩效应及其驱动机制。1）生产与生活功能核心区成为主要的碳源，其环境压力由边缘生态功能区承载。2）脱钩状态呈现脆弱的倒“U”型，其“强脱钩”阶段多为外部政策驱动下的被动改善，而非发展模式的内生性转变，系统缺乏韧性。3）功能驱动机制揭示了生产与生活功能之间的博弈，生产功能优化是实现脱钩的关键，生活功能则是主要约束。4）驱动机制存在显著的区域异质性，核心区的压力来自生活消费，而沿海港口区则与产业结构紧密相关。该研究有助于深化对功能结构与碳排放耦合机制的理解，为实现平陆运河经济带的功能优化驱动碳减排治理提供理论支撑与实证参考。

关键词: 国土空间功能, 土地利用碳排放, 脱钩分析, 驱动机制, 平陆运河经济带

Abstract:

This study aims to comprehensively investigate the coupling relationship between the functional evolution of territorial space and land-use carbon emissions, thereby providing a theoretical basis for the high-quality and sustainable development of the Pinglu Canal Economic Belt. This paper constructs a comprehensive evaluation system from the perspective of “production, living, ecological” functions. It identifies the spatio-temporal evolution characteristics of regional territorial spatial functions from 2010 to 2022, quantifies direct carbon emissions based on land area and emission coefficients, and estimates indirect carbon emissions using a top-down approach. The decoupling relationship and driving mechanisms between territorial spatial functions and carbon emissions are analysed by integrating the Tapio decoupling model with the LMDI decomposition method. The results show that: 1) The core areas of production and living functions emerged as the main carbon sources, and their environmental pressure was borne by the peripheral ecological function areas. 2) The decoupling status exhibited a fragile inverted “U” shape; its “strong decoupling” phase was largely a passive improvement driven by external policies rather than an endogenous transformation of the development model, and the system lacked resilience. 3) The functional driving mechanism revealed a trade-off between production and living functions, where the optimization of production function was the key to achieving decoupling, while the living function acted as the main constraint. 4) The driving mechanisms showed significant regional heterogeneity; the pressure in the core areas came mainly from residential consumption, whereas that in the coastal port areas was closely related to the industrial structure. This study contributes to deepening the understanding of the coupling mechanism between functional structures and carbon emissions, providing theoretical support and empirical references for achieving carbon emission reduction governance through functional optimization in the Pinglu Canal Economic Belt.

Key words: territorial spatial functions, land use carbon emissions, decoupling analysis, driving mechanism, PingluRiver Economic Belt

中图分类号:

X144

文少强, 胡宝清, 包婷, 谢薇薇, 劳茵茵, 高劲松. 国土空间功能与土地利用碳排放的脱钩效应及驱动机制研究——以平陆运河经济带为例[J]. 生态环境学报, 2026, 35(5): 725-737.

WEN Shaoqiang, HU Baoqing, BAO Ting, XIE Weiwei, LAO Yinyin, GAO Jinsong. Research on the Synergistic Path of Optimisation of Territorial Spatial Functions and Carbon Emissions Reduction: Analysis of Decoupling Effect Based on Pinglu Canal Economic Belt[J]. Ecology and Environmental Sciences, 2026, 35(5): 725-737.

图/表 12

图1 研究区概况

Figure 1 Overview of the study area

图2 国土空间功能演变与碳排放驱动机制的逻辑框架

Figure 2 A logical framework for the evolution of territorial space functions and carbon emission drivers

表1 国土空间功能评价指标体系

Table 1 Indicator system for evaluation of territorial spatial functions

目标层	准则层	系统层	指标层	计算方式	权重
国土空间功能	生产功能	农业生产功能	地均粮食产量	粮食总产量/粮食作物播种面积	0.117
			土地垦殖率	耕地面积/区域总面积	0.102
			地均蔬菜产量	区域蔬菜产量/区域总面积	0.116
		城镇生产功能	地均第二产业产值	第二产业产值/区域总面积	0.280
		城镇生产功能	地均第三产业产值	第三产业产值/区域总面积	0.385
	生活功能	城镇生活功能	建设用地密度	建设用地面积/区域总面积	0.492
			公路密度	公路里程数/区域总面积	0.044
			地均医疗床位数	区域医疗床位数/区域面积	0.179
			人口密度	区域总人口/区域总面积	0.265
		农业生活功能	农民人均收入	－	0.020
	生态功能	生态保育功能	森林覆盖率	林地面积/区域面积	0.126
			生态用地面积	林地、草地和水域面积总和	0.263
			人均耕地面积	区域总人口/区域耕地面积	0.131
		生态承载功能	固碳量	InVEST模型	0.245
		生态承载功能	生物多样性	InVEST模型	0.235

表2 各类能源折算系数

Table 2 Energy conversion factors by type

能源类型	煤炭	焦炭	原油	汽油	煤油	柴油	燃烧油	液化石油气	天然气	电力
折标准煤系数	0.7143	0.9714	1.4286	1.4714	1.4714	1.4571	1.4286	1.7143	1.214	0.1229
碳排放系数	0.7559	0.855	0.5857	0.5538	0.5714	0.5921	0.6185	0.5042	0.4483	0.2132

图3 脱钩状态的划分

Figure 3 Classification of decoupling states

图4 国土空间功能核密度估计曲线

Figure 4 Curve for estimating the functional core density of territorial space

图5 2010－2022年平陆运河经济带各功能的时空分异

Figure 5 Spatial and temporal differentiation of functions in the Pinglu Canal Economic Zone, 2010-2022

图6 2010－2022年功能耦合协调度类型的转变图例中“*”代表各年份

Figure 6 Shift in the type of functional coupling coordination degree in 2010-2022

图7 2010－2022年土地利用直接与间接碳排放总量与变化率

Figure 7 Total direct and indirect carbon emissions from land use and rate of change, 2010-2022

图8 平陆运河经济带土地利用直接与间接碳排放量时空分异

Figure 8 Spatial and temporal variation of direct and indirect carbon emissions from land use in the Pinglu Canal Economic Zone

图9 2010－2022年各县区脱钩状态及水平

Figure 9 Status and level of decoupling by county in 2010-2022

图10 脱钩状态的驱动因子分解

Figure 10 Decomposition of driving factors for decoupled states

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国土空间功能与土地利用碳排放的脱钩效应及驱动机制研究——以平陆运河经济带为例

Research on the Synergistic Path of Optimisation of Territorial Spatial Functions and Carbon Emissions Reduction: Analysis of Decoupling Effect Based on Pinglu Canal Economic Belt

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