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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第46卷

期数:

2024年第02期

页码:

196-210

栏目:

环境与可持续发展

出版日期:

2024-04-10

文章信息/Info

Title:

Spatial DifferentiationCharacteristicsof Carbon Emission and Its InfluencingFactors inHunan Province, China at theCounty Scale

文章编号:

1672-6561(2024)02-0196-15

作者:

周 航; 赵先超^*

(湖南工业大学 城市与环境学院,湖南 株洲 412007)

Author(s):

ZHOU Hang;  ZHAO Xian-chao^*

(College of Urban and Environmental Science, Hunan University of Technology, Zhuzhou 412007, Hunan, China)

关键词:

碳排放;  空间分异;  影响因素;  县域尺度;  夜间灯光数据;  地理探测器;  时空地理加权回归模型;  湖南

Keywords:

carbon emission;  spatial differentiation;  influencing factor;  county scale;  nightlight data;  geodetector;  GTWR model;  Hunan

分类号:

F301.24; X24

DOI:

10.19814/j.jese.2023.12007

文献标志码:

A

摘要:

开展县域尺度下的碳排放空间分异与影响因素研究,是助推实现县域等多尺度区域“双碳”目标的重要环节。以湖南省122个县(市、区)为研究对象,通过夜间灯光数据估算湖南省各区县的碳排放量,采用探索性空间数据分析方法刻画了县域碳排放时空格局,运用地理探测器和时空地理加权回归(GTWR)模型,从政策、经济、能源、社会和产业维度对县域碳排放空间分异与影响因素进行了定量研究。结果表明:①2012～2020年,湖南省县域碳排放总体呈减弱趋势,且差异较为明显,空间格局分布为北高南低,东西差距较小; ②莫兰指数(Moran's I)逐年下降,空间集聚特征较为显著,总体成正相关关系; ③财政支出、人口规模、城镇化率、能源碳排放强度和农业发展水平是影响县域碳排放的主导因子; ④通过时空地理加权回归模型对主导因子进行分析,发现同一指标对不同区县碳排放的影响存在显著的时空差异。

Abstract:

Carrying outtheresearch on the spatial heterogeneity of carbon emissions and influencing factors at the countyscale is an important link to help achieve the goal of “double carbon” for counties and districts and other multi-scale regions. Using 122 counties in Hunan province as the research object, the carbon emissions of each county in Hunan province were estimated throughnightlightdata, the exploratory spatial data analysis methods were used to depict the spatial and temporal patterns of carbon emissions in the counties, and the geodetector and geographicallyand temporallyweighted regression(GTWR)model were used to quantitatively investigate the spatial differentiation ofcarbon emissionsin the countiesand the factors influencing in terms of policy, economy, energy, society, and industry. The results show that ① from 2012 to 2020, the overall trend of carbon emissionin the countiesof Hunan province is weakening and the difference is more obvious, the spatial pattern distribution is high in the north and low in the south, and the gap between the east and west is relatively small; ② the Moran's I value decreases year by year, the spatial clustering feature is more significant, and the overall positive correlation trend is shown; ③ the financial expenditures, the size of population, the urbanization rate, energy carbon intensity and agricultural development level are the dominant factors affecting carbon emissionsin the counties; ④ based on GTWR model, there are significant spatial and temporal differences in the impact of the same indicator on carbon emissions in different counties.

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备注/Memo

备注/Memo:

收稿日期:2023-12-06; 修回日期:2024-01-19
基金项目:湖南省社会科学成果评审委员会重大课题(XSP22ZDA008); 湖南省教育厅科学研究重点项目(22A0419); 湖南省教育科学规划重点课题(XJK23AGD007); 湖南省自然资源科研项目(2023-08)
作者简介:周 航(2000-),女,湖南益阳人,工学硕士研究生,E-mail:zhouhang_2000@163.com。
*通信作者:赵先超(1983-),男,山东郓城人,教授,博士研究生导师,理学博士,E-mail:zhaoxianchao@hut.edu.cn。

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更新日期/Last Update: 2024-04-10