[1]Han Yufei,Liu Yanzhong,Chen Yong,et al.Spatiotemporal Evolution of Land Ecological Risk in Wuhan from the Perspective of Carbon Emission[J].Research of Soil and Water Conservation,2024,31(02):331-341.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 02
Page number:
331-341
Column:
Public date:
2024-03-20
- Title:
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Spatiotemporal Evolution of Land Ecological Risk in Wuhan from the Perspective of Carbon Emission
- Author(s):
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Han Yufei1, Liu Yanzhong1,2, Chen Yong1,3, Chen Hongyi1,6, Tan Yuchuan1,7, Wang Ying2,4, Zhang Zuo3,5
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(1.College of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; 2.School of Public Administration, China University of Geosciences, Wuhan 430074, China; 3.School of Public Administration, Central China Normal University, Wuhan 430079, China)
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- Keywords:
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land ecological risk; carbon emissions; spatial data analysis; Wuhan City
- CLC:
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X821
- DOI:
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- Abstract:
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[Objective] The aims of this study are to explore the adverse effects of land use carbon emissions on land ecological security, and to reveal the evolution of different factors. [Methods] The carbon footprint pressure index in combination vegetation cover, precipitation distance level percentage index, soil erosion degree and land use mixing degree together was introduced to construct a land ecological risk evaluation model. The entropy weighting method was used to determine the weight of risk indicators and calculate the comprehensive risk index. Finally, the spatial analysis was used to investigate the spatial and temporal evolution patterns of land ecological risk and spatial agglomeration effects in Wuhan in 2010, 2015 and 2020. [Results] The overall ecological risk in Wuhan City was decreasing but the magnitude was small, the difference of risk indices among administrative districts was large, the vegetation coverage in the central city was low, the land use mix was low, the carbon emission pressure was high, and the land ecological security was worrying. The land ecological risk index showed a strong spatial agglomeration state, and the degree of cold and hot spot agglomeration first increased and then weakened, and the hot spots mainly concentrated in the central urban area and Hannan District. [Conclusion] The surge in land-use carbon emissions has led to the further aggravation of land ecological risks and the diversification of risk sources, and the introduction of carbon footprint pressure index can more comprehensively assess regional land ecological risks and provide a basis for reducing land ecological risks.