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Zhang X, Fan H, Hou H, Xu C, Sun L, Li Q, Ren J. Spatiotemporal evolution and multi-scale coupling effects of land-use carbon emissions and ecological environmental quality. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171149. [PMID: 38402977 DOI: 10.1016/j.scitotenv.2024.171149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/25/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
The coupling relationship between land-use carbon emissions (LCE) and ecological environmental quality (EEQ) is critical for regional sustainable development. Rapid urbanization promotes a notable increase in LCE, which imparts significant stress on EEQ. This study used land use and cover change (LUCC) and Open-Data Inventory for Anthropogenic Carbon dioxide (ODIAC) data from the urban agglomeration in the middle reaches of the Yangtze River (UAMRYR) to evaluate LCE, applied a remote sensing ecological index (RSEI) model to calculate EEQ, and combined gravity and centroid movement trajectory models to analyze the spatiotemporal evolution characteristics of LCE and EEQ. Four-quadrant and coupling degree (CD) models were used to analyze the synergistic relationship and interaction intensity between LCE and EEQ based on three different scales of pixels, counties, and cities. The results show that: (1) LCE and EEQ exhibit clear spatial inequality distribution, and the total amount of LCE increased from 40.16 Mt. in 2000 to 131.99 Mt. in 2020; however, LCE has not yet reached peak carbon emissions. (2) From 2000 to 2020, cities with a strong correlation between LCE and EEQ showed an increasing trend, and the centroid of LCE moved sharply to Jiangxi during 2000-2005 and 2005-2010. (3) High-CD areas were primarily located in quadrant II, and low-CD areas in quadrant IV. The relationship between LCE and EEQ has improved over the past 21 years, and CD has been increasing. (4) The stability of the coupling results between LCE and EEQ was affected by different research scales; the larger the research scale is, the greater the change in the results. This study provides a scientific basis and practical scheme for LCE reduction, ecological environmental management, and regional sustainable development in the UAMRYR.
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Affiliation(s)
- Xinmin Zhang
- School of Applied Economics, Jiangxi University of Finance and Economics, Nanchang 330013, China; School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Houbao Fan
- School of Applied Economics, Jiangxi University of Finance and Economics, Nanchang 330013, China
| | - Hao Hou
- Institute of Remote Sensing and Earth Sciences, Hangzhou Normal University, Hangzhou 311121, China
| | - Chuanqi Xu
- College of Geographical Science, Shanxi Normal University, Taiyuan 030031, China
| | - Lu Sun
- School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Qiangyi Li
- School of Economics and Management, Guangxi Normal University, Guilin 541006, China
| | - Jingzheng Ren
- Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong SAR, China
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Zhu E, Yao J, Zhang X, Chen L. Explore the spatial pattern of carbon emissions in urban functional zones: a case study of Pudong, Shanghai, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:2117-2128. [PMID: 38049690 DOI: 10.1007/s11356-023-31149-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 11/17/2023] [Indexed: 12/06/2023]
Abstract
It is crucial for the development of carbon reduction strategies to accurately examine the spatial distribution of carbon emissions. Limited by data availability and lack of industry segmentation, previous studies attempting to model spatial carbon emissions still suffer from significant uncertainty. Taking Pudong New Area as an example, with the help of multi-source data, this paper proposed a research framework for the amount calculation and spatial distribution simulation of its CO2 emissions at the scale of urban functional zones (UFZs). The methods used in this study were based on mapping relations among the locations of geographic entities and data of multiple sources, using the coefficient method recommended by the Intergovernmental Panel on Climate Change (IPCC) to calculate emissions. The results showed that the emission intensity of industrial zones and transport zones was much higher than that of other UFZs. In addition, Moran's I test indicated that there was a positive spatial autocorrelation in high emission zones, especially located in industrial zones. The spatial analysis of CO2 emissions at the UFZ scale deepened the consideration of spatial heterogeneity, which could contribute to the management of low carbon city and the optimal implementation of energy allocation.
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Affiliation(s)
- Enyan Zhu
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China.
| | - Jian Yao
- College of Transport and Communications, Shanghai Maritime University, Shanghai, 201306, China
| | - Xinghui Zhang
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, 201306, China
| | - Lisu Chen
- College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai, 201306, China
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Ding Y, Yin J, Jiang H, Xia R, Zhang B, Luo X, Wei D. A dual-core system dynamics approach for carbon emission spillover effects analysis and cross-regional policy simulation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119374. [PMID: 37871547 DOI: 10.1016/j.jenvman.2023.119374] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 09/18/2023] [Accepted: 10/14/2023] [Indexed: 10/25/2023]
Abstract
As carbon emission continue to rise and climate issues grow increasingly severe, countries worldwide have taken measures to reduce carbon emission. However, carbon dioxide is continuously flowing in the atmosphere and is easily influenced by neighboring cities' policies. Therefore, how to solve the problem of carbon emission spillover effect has become the key to improve policy efficiency. Cross-regional carbon governance provides a perspective on solving the carbon emission problem by regulating and guiding the cooperative behavior of cross-regional governance actors. Taking Chengdu-Chongqing area as an example, this study used the SDM to analyze the influencing factors and spatial spillover effects of emission. Then we used the system dynamics method to construct a dual-core carbon emission system, and simulated the spillover effect and emission reduction potential of Chengdu and Chongqing emission reduction policies under different policy schemes. The results reveal that the mobility of population and enterprises have a significant impact on carbon emission prediction. Carbon reduction policies exhibit the phenomena of "carbon transfer" and "free-riding." When Chengdu lowers its economic growth rate, it leads to the transfer of high energy-consuming enterprises to Chongqing, increasing carbon emission in Chongqing. The implementation of comprehensive carbon reduction policies in Chongqing has a positive effect on Chengdu. Emission reduction policies exhibit issues related to their temporal efficacy, as the effects of industrial structural policies in Chengdu yield opposite outcomes in the short and long term. Each city's unique circumstances necessitate tailored carbon reduction policies. In order to reduce carbon emissions, Chengdu and Chongqing require opposite population policies.
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Affiliation(s)
- Yi Ding
- Center for China Western Modernization, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; Key Laboratory of Green Fintech, Guizhou University of Finance and Economics, Guiyang, 550025, China.
| | - Jian Yin
- Center for China Western Modernization, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China; Key Laboratory of Green Fintech, Guizhou University of Finance and Economics, Guiyang, 550025, China.
| | - Hongtao Jiang
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Ruici Xia
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Bin Zhang
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Xinyuan Luo
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
| | - Danqi Wei
- College of Big Data Application and Economic, Guizhou University of Finance and Economics, Guiyang, Guizhou, 550025, China
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Qiao R, Dong F, Xie X, Ji R. Regional differences, dynamic evolution, and spatial spillover effects of carbon emission intensity in urban agglomerations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:121993-122010. [PMID: 37957497 DOI: 10.1007/s11356-023-30807-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/28/2023] [Indexed: 11/15/2023]
Abstract
Taking three major urban agglomerations in China as examples, this paper uses the Dagum Gini coefficient and its decomposition method, a Kernel density estimation method, and Markov chain and spatial Markov chain to study the regional differences, dynamic evolution characteristics, and spatial spillover effects of carbon emission intensity (CEI) of urban agglomerations, and accordingly, it proposes differentiated emission reduction and carbon reduction policies. The following results were obtained: (1) The overall CEI of the three major urban agglomerations and each individual urban agglomeration were found to have declined significantly over time, with an overall spatial pattern of "high in the north and low in the south," with inter-group differences being the main source of the overall differences. (2) The imbalance in CEI between cities was more obvious within the Beijing-Tianjin-Hebei (BTH) urban agglomeration, while the synergistic emission reduction effect of the Yangtze River Delta (YRD) and Pearl River Delta (PRD) urban agglomerations increased over the study period. (3) The probability of a city maintaining a stable level of CEI was much higher than the probability of a state shift, and there was a spatial spillover effect of carbon emissions between neighboring cities. This study can provide theoretical support for the global response to greenhouse gas emissions, promoting green development and carbon reduction in various countries and urban agglomerations and providing a quantitative basis for the formulation of relevant policies.
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Affiliation(s)
- Rui Qiao
- School of Economics and Management, China University of Mining and Technology, Xuzhou, 221116, People's Republic of China
- Economic Research Institute of Inner Mongolia Academy of Social Sciences, Hohhot, 010029, People's Republic of China
| | - Feng Dong
- School of Economics and Management, China University of Mining and Technology, Xuzhou, 221116, People's Republic of China.
| | - Xiaoqian Xie
- School of Economics and Management, China University of Mining and Technology, Xuzhou, 221116, People's Republic of China
| | - Rui Ji
- School of Economics and Management, China University of Mining and Technology, Xuzhou, 221116, People's Republic of China
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Yao X, Zheng W, Wang D, Li S, Chi T. Study on the spatial distribution of urban carbon emissions at the micro level based on multisource data. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:102231-102243. [PMID: 37665441 DOI: 10.1007/s11356-023-29536-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 08/22/2023] [Indexed: 09/05/2023]
Abstract
Global warming is currently an area of concern. Human activities are the leading cause of urban greenhouse gas intensification. Inversing the spatial distribution of carbon emissions at microscopic scales such as communities or controlling detailed planning plots can capture the critical emission areas of carbon emissions, thus providing scientific guidance for intracity low-carbon development planning. Using the Sino-Singapore Tianjin Eco-city as an example, this paper uses night-light images and statistical yearbooks to perform linear fitting within the Beijing-Tianjin-Hebei city-county region and then uses fine-scale data such as points of interest, road networks, and mobile signaling data to construct spatial characteristic indicators of carbon emissions distribution and assign weights to each indicator through the analytic hierarchy process. As a result, the spatial distribution of carbon emissions based on detailed control planning plots is calculated. The results show that among the selected indicators, the population distribution significantly influences carbon emissions, with a weight of 0.384. The spatial distribution of carbon emissions is relatively distinctive. The primary carbon emissions are from the Sino-Singapore Cooperation Zone due to its rapid urban construction and development. In contrast, carbon emissions from other areas are sparse, as there is mostly unused land under construction.
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Affiliation(s)
- Xiaojing Yao
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China
| | - Wei Zheng
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China
- College of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing, 100083, China
| | - Dacheng Wang
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China.
| | - Shenshen Li
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China
| | - Tianhe Chi
- Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, 100094, China
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Pu X, Cheng Q, Chen H. Spatial-temporal dynamics of land use carbon emissions and drivers in 20 urban agglomerations in China from 1990 to 2019. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:107854-107877. [PMID: 37740809 DOI: 10.1007/s11356-023-29477-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 08/20/2023] [Indexed: 09/25/2023]
Abstract
Urban agglomerations (UAs) are the largest carbon emitters; thus, the emissions must be controlled to achieve carbon peak and carbon neutrality. We use long time series land-use and energy consumption data to estimate the carbon emissions in UAs. The standard deviational ellipse (SDE) and spatial autocorrelation analysis are used to reveal the spatiotemporal evolution of carbon emissions, and the geodetector, geographically and temporally weighted regression (GTWR), and boosted regression trees (BRTs) are used to analyze the driving factors. The results show the following: (1) Construction land and forest land are the main carbon sources and sinks, accounting for 93% and 94% of the total carbon sources and sinks, respectively. (2) The total carbon emissions of different UAs differ substantially, showing a spatial pattern of high emissions in the east and north and low emissions in the west and south. The carbon emissions of all UAs increase over time, with faster growth in UAs with lower carbon emissions. (3) The center of gravity of carbon emissions shifts to the south (except for North China, where it shifts to the west), and carbon emissions in UAs show a positive spatial correlation, with a predominantly high-high and low-low spatial aggregation pattern. (4) Population, GDP, and the annual number of cabs are the main factors influencing carbon emissions in most UAs, whereas other factors show significant differences. Most exhibit an increasing trend over time in their impact on carbon emissions. In general, China still faces substantial challenges in achieving the dual carbon goal. The carbon control measures of different UAs should be targeted in terms of energy utilization, green and low-carbon production, and consumption modes to achieve the low-carbon and green development goals of the United Nations' sustainable cities and beautiful China's urban construction as soon as possible.
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Affiliation(s)
- Xuefu Pu
- School of Geography and Ecotourism, Southwest Forestry University, Kunming, 650224, Yunnan, China
| | - Qingping Cheng
- School of Geography and Ecotourism, Southwest Forestry University, Kunming, 650224, Yunnan, China.
- Southwest Research Centre for Eco-Civilization, National Forestry and Grassland Administration, Kunming, 650224, Yunnan, China.
- Yunnan Key Lab of International Rivers and Transboundary Eco-Security, Yunnan University, Kunming, 650091, China.
| | - Hongyue Chen
- School of Geography and Ecotourism, Southwest Forestry University, Kunming, 650224, Yunnan, China
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Tong Y, Tang L, Xia M, Li G, Hu B, Huang J, Wang J, Jiang H, Yin J, Xu N, Chen Y, Jiang Q, Zhou J, Zhou Y. Identifying determinants for the seropositive rate of schistosomiasis in Hunan province, China: A multi-scale geographically weighted regression model. PLoS Negl Trop Dis 2023; 17:e0011466. [PMID: 37440524 DOI: 10.1371/journal.pntd.0011466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 06/16/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND Schistosomiasis is of great public health concern with a wide distribution and multiple determinants. Due to the advances in schistosomiasis elimination and the need for precision prevention and control, identifying determinants at a fine scale is urgent and necessary, especially for resource deployment in practice. Our study aimed to identify the determinants for the seropositive rate of schistosomiasis at the village level and to explore their spatial variations in local space. METHODOLOGY The seropositive rates of schistosomiasis were collected from 1714 villages or communities in Human Province, and six spatial regression models including ordinary least squares (OLS), spatial lag model (SLM), spatial error model (SEM), geographically weighted regression (GWR), robust GWR (RGWR) and multiscale GWR (MGWR) were used to fit the data. PRINCIPAL/FINDINGS MGWR was the best-fitting model (R2: 0.821, AICc:2727.092). Overall, the nearest distance from the river had the highest mean negative correlation, followed by proportion of households using well water and the annual average daytime surface temperature. The proportions of unmodified toilets showed the highest mean positive correlation, followed by the snail infested area, and the number of cattle. In spatial variability, the regression coefficients for the nearest distance from the river, annual average daytime surface temperature and the proportion of unmodified toilets were significant in all villages or communities and varied little in local space. The other significant determinants differed substantially in local space and had significance ratios ranging from 41% to 70%, including the number of cattle, the snail infested area and the proportion of households using well water. CONCLUSIONS/SIGNIFICANCE Our study shows that MGWR was well performed for the spatial variability of schistosomiasis in Hunan province. The spatial variability was different for different determinants. The findings for the determinants for the seropositive rate and mapped variability for some key determinants at the village level can be used for developing precision intervention measure for schistosomiasis control.
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Affiliation(s)
- Yixin Tong
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
| | - Ling Tang
- Hunan Institute for Schistosomiasis Control, Yueyang, China
| | - Meng Xia
- Hunan Institute for Schistosomiasis Control, Yueyang, China
| | - Guangping Li
- Hunan Institute for Schistosomiasis Control, Yueyang, China
| | - Benjiao Hu
- Hunan Institute for Schistosomiasis Control, Yueyang, China
| | - Junhui Huang
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
| | - Jiamin Wang
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
| | - Honglin Jiang
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
| | - Jiangfan Yin
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
| | - Ning Xu
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Qingwu Jiang
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
| | - Jie Zhou
- Hunan Institute for Schistosomiasis Control, Yueyang, China
| | - Yibiao Zhou
- Fudan University School of Public Health, Shanghai, China
- Key Laboratory of Public Health Safety, Fudan University, Ministry of Education, Shanghai, China
- Fudan University Center for Tropical Disease Research, Shanghai, China
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Zhao C, Liu Y, Yan Z. Effects of land-use change on carbon emission and its driving factors in Shaanxi Province from 2000 to 2020. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:68313-68326. [PMID: 37119487 DOI: 10.1007/s11356-023-27110-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 04/15/2023] [Indexed: 05/27/2023]
Abstract
Exploring the process of carbon emissions under the "carbon peaking and carbon neutrality goals" can contribute to sustainable economic development. This research takes Shaanxi Province as an example. We elaborated on the spatial and temporal characteristics of land-use change from 2000 to 2020 and adopted the carbon emission model method to calculate land-use carbon emissions, also used urban morphological indicators to reveal the main factors of carbon emission changes. The results show that from 2000 to 2020, the land-use change in Shaanxi Province is mainly reflected in the increase in construction land area and the decrease in agricultural land area. Among them, the construction land area increased by 2192 km2, and the agricultural land area decreased by 5006 km2. Land-use carbon emissions increased by 1.28 × 1011 kg during this period. Construction land is a major contributor to carbon emissions. The forestland is the main carbon sink. Carbon emissions showed a spatial pattern of "high in the north, low in the south, and concentrated in the middle." Urban form change is the driving factor affecting land-use carbon emissions in Shaanxi Province. The results of the research contribute to the understanding of regional carbon emission mechanisms and provide a scientific basis for reducing carbon emissions.
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Affiliation(s)
- Chenxu Zhao
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, No. 5, South Jinhua Road, Xi'an, 710048, Shaanxi, China
| | - Yuling Liu
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, No. 5, South Jinhua Road, Xi'an, 710048, Shaanxi, China.
| | - Zixuan Yan
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, No. 5, South Jinhua Road, Xi'an, 710048, Shaanxi, China
- State Key Laboratory of National Forestry Administration On Ecological Hydrology and Disaster Prevention in Arid Regions, Xi'an University of Technology, Xi'an, 710048, Shaanxi, China
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Zhang C, Dong X, Zhang Z. Spatiotemporal Dynamic Distribution, Regional Differences and Spatial Convergence Mechanisms of Carbon Emission Intensity: Evidence from the Urban Agglomerations in the Yellow River Basin. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3529. [PMID: 36834225 PMCID: PMC9963863 DOI: 10.3390/ijerph20043529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/28/2023] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
Low-carbon transition is of great importance in promoting the high-quality and sustainable development of urban agglomerations in the Yellow River Basin (YRB). In this study, the spatial Markov chain and Dagum's Gini coefficient are used to describe the distribution dynamics and regional differences in the carbon emission intensity (CEI) of urban agglomerations in the YRB from 2007 to 2017. Additionally, based on the spatial convergence model, this paper analyzed the impact of technological innovation, industrial structure optimization and upgrading, and the government's attention to green development on the CEI's convergence speed for different urban agglomerations. The research results show that: (1) The probability of adjacent type transfer, cross-stage transfer, and cross-space transfer of the CEI of urban agglomerations in the YRB is small, indicating that the overall spatiotemporal distribution type of CEI is relatively stable. (2) The CEI of urban agglomerations in the YRB has decreased significantly, but the spatial differences are still significant, with a trend of continuous increase, and regional differences mainly come from the differences between urban agglomerations. (3) Expanding innovation output, promoting the optimization and upgrading of industrial structure, and enhancing the government's attention to green development has a significant positive effect on the convergence rate of the CEI of urban agglomerations in the YRB. This paper holds that implementing differentiated emission reduction measures and actively expanding regional collaborative mechanisms will play an important role in reducing the spatial differences in carbon emissions in urban agglomerations in the YRB, realizing the goals of peak carbon and carbon neutrality.
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Affiliation(s)
- Chaohui Zhang
- Faculty of Applied Economics, University of Chinese Academy of Social Sciences, Beijing 102488, China
| | - Xin Dong
- Faculty of Applied Economics, University of Chinese Academy of Social Sciences, Beijing 102488, China
- Research Institute for Eco-Civilization, Chinese Academy of Social Sciences, Beijing 100710, China
| | - Ze Zhang
- Faculty of Applied Economics, University of Chinese Academy of Social Sciences, Beijing 102488, China
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