Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraints
Under the constraint of carbon emission, measuring and analyzing the spatial-temporal evolution characteristics of urban land use efficiency in the Yangtze River Economic Belt is the inherent requirement of its ecological protection and sustainable development. In this paper, we calculated the urban...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-01-01
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| Series: | Frontiers in Environmental Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fenvs.2022.1096087/full |
| _version_ | 1797959823491334144 |
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| author | Qiqi Yang Lijie Pu Caixia Jiang Guofang Gong Hongmei Tan Xiaoqing Wang Gaili He |
| author_facet | Qiqi Yang Lijie Pu Caixia Jiang Guofang Gong Hongmei Tan Xiaoqing Wang Gaili He |
| author_sort | Qiqi Yang |
| collection | DOAJ |
| description | Under the constraint of carbon emission, measuring and analyzing the spatial-temporal evolution characteristics of urban land use efficiency in the Yangtze River Economic Belt is the inherent requirement of its ecological protection and sustainable development. In this paper, we calculated the urban land use efficiency of 107 cities in the Yangtze River Economic Belt from 2006 to 2020 by using the SBM-Undesirable model with unexpected output, and analyzed its temporal evolution trend and spatial correlation relationship by using kernel density and spatial autocorrelation method. The results showed that: except in 2020, the urban land use efficiency was generally low due to the COVID-19 epidemic, and the urban land use efficiency in other years was mostly concentrated in the middle levels, and showed a trend of slow fluctuation and rise year by year. The difference of urban land use efficiency level between regions increased, and the dispersion degree in upstream, midstream and downstream increased with each passing year. Urban land use efficiency spatial imbalance was significant, and the urban land use efficiency level of large and medium-sized cities was generally lower than that of cities with low economic development level. The spatial correlation was weak, and the global spatial autocorrelation was basically insignificant, while the local spatial agglomeration areas were mainly distributed in the upstream and downstream regions, with a small distribution range and weak spatial interaction. The distribution areas of the standard deviation ellipse were gradually flattened, and the center of gravity as a whole shift significantly to the southwest. The research results are helpful to understand the development history and future trend of urban land use efficiency in various regions, and propose that cities should consider the impact of public crisis events in advance, reasonably control the scale of land expansion, and lead coordinated development and other reasonable suggestions when formulating land use policies. |
| first_indexed | 2024-04-11T00:38:17Z |
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| issn | 2296-665X |
| language | English |
| last_indexed | 2024-04-11T00:38:17Z |
| publishDate | 2023-01-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Environmental Science |
| spelling | doaj.art-93e493ba7a974588b327696b2d60a5122023-01-06T14:45:32ZengFrontiers Media S.A.Frontiers in Environmental Science2296-665X2023-01-011010.3389/fenvs.2022.10960871096087Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraintsQiqi Yang0Lijie Pu1Caixia Jiang2Guofang Gong3Hongmei Tan4Xiaoqing Wang5Gaili He6School of Geography and Ocean Science, Nanjing University, Nanjing, ChinaSchool of Geography and Ocean Science, Nanjing University, Nanjing, ChinaSchool of Management, Chongqing University of Technology, Chongqing, ChinaSchool of Management, Chongqing University of Technology, Chongqing, ChinaSchool of Management, Chongqing University of Technology, Chongqing, ChinaSchool of Geography and Ocean Science, Nanjing University, Nanjing, ChinaSchool of Geography and Ocean Science, Nanjing University, Nanjing, ChinaUnder the constraint of carbon emission, measuring and analyzing the spatial-temporal evolution characteristics of urban land use efficiency in the Yangtze River Economic Belt is the inherent requirement of its ecological protection and sustainable development. In this paper, we calculated the urban land use efficiency of 107 cities in the Yangtze River Economic Belt from 2006 to 2020 by using the SBM-Undesirable model with unexpected output, and analyzed its temporal evolution trend and spatial correlation relationship by using kernel density and spatial autocorrelation method. The results showed that: except in 2020, the urban land use efficiency was generally low due to the COVID-19 epidemic, and the urban land use efficiency in other years was mostly concentrated in the middle levels, and showed a trend of slow fluctuation and rise year by year. The difference of urban land use efficiency level between regions increased, and the dispersion degree in upstream, midstream and downstream increased with each passing year. Urban land use efficiency spatial imbalance was significant, and the urban land use efficiency level of large and medium-sized cities was generally lower than that of cities with low economic development level. The spatial correlation was weak, and the global spatial autocorrelation was basically insignificant, while the local spatial agglomeration areas were mainly distributed in the upstream and downstream regions, with a small distribution range and weak spatial interaction. The distribution areas of the standard deviation ellipse were gradually flattened, and the center of gravity as a whole shift significantly to the southwest. The research results are helpful to understand the development history and future trend of urban land use efficiency in various regions, and propose that cities should consider the impact of public crisis events in advance, reasonably control the scale of land expansion, and lead coordinated development and other reasonable suggestions when formulating land use policies.https://www.frontiersin.org/articles/10.3389/fenvs.2022.1096087/fullurban land use efficiencycarbon emissionsYangtze River Economic Beltsustainable developmentSBM-undesirable model |
| spellingShingle | Qiqi Yang Lijie Pu Caixia Jiang Guofang Gong Hongmei Tan Xiaoqing Wang Gaili He Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraints Frontiers in Environmental Science urban land use efficiency carbon emissions Yangtze River Economic Belt sustainable development SBM-undesirable model |
| title | Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraints |
| title_full | Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraints |
| title_fullStr | Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraints |
| title_full_unstemmed | Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraints |
| title_short | Unveiling the spatial-temporal variation of urban land use efficiency of Yangtze River Economic Belt in China under carbon emission constraints |
| title_sort | unveiling the spatial temporal variation of urban land use efficiency of yangtze river economic belt in china under carbon emission constraints |
| topic | urban land use efficiency carbon emissions Yangtze River Economic Belt sustainable development SBM-undesirable model |
| url | https://www.frontiersin.org/articles/10.3389/fenvs.2022.1096087/full |
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