Spatial Correlation Characteristics of Amount and Intensity of Carbon Emissions Resulting from Cultivated Land Utilization in an Urban Agglomeration in Middle Reaches of Yangtze River

Xiong Zixin; Kuang Bing; Ke Nan

doi:10.13961/j.cnki.stbctb.20230216.004

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Spatial Correlation Characteristics of Amount and Intensity of Carbon Emissions Resulting from Cultivated Land Utilization in an Urban Agglomeration in Middle Reaches of Yangtze River

- Spatial Correlation Characteristics of Amount and Intensity of Carbon Emissions Resulting from Cultivated Land Utilization in an Urban Agglomeration in Middle Reaches of Yangtze River
- Bulletin of Soiland Water Conservation Vol. 43, Issue 3, Pages: 406-413(2023)
- 作者机构：
  
  1. 华中师范大学公共管理学院,湖北,武汉,430079
  2. 华中师范大学自然资源治理研究院,湖北,武汉,430079
  3. 华中科技大学公共管理学院,湖北,武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.20230216.004
  CLC： X321;F323.211
- Published：2023
- 稿件说明：
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Xiong Zixin, Kuang Bing, Ke Nan. Spatial Correlation Characteristics of Amount and Intensity of Carbon Emissions Resulting from Cultivated Land Utilization in an Urban Agglomeration in Middle Reaches of Yangtze River[J]. Bulletin of Soiland Water Conservation, 2023, 43(3): 406-413.
DOI：

Xiong Zixin, Kuang Bing, Ke Nan. Spatial Correlation Characteristics of Amount and Intensity of Carbon Emissions Resulting from Cultivated Land Utilization in an Urban Agglomeration in Middle Reaches of Yangtze River[J]. Bulletin of Soiland Water Conservation, 2023, 43(3): 406-413. DOI： 10.13961/j.cnki.stbctb.20230216.004.

摘要

[目的] 揭示长江中游城市群耕地利用碳排放“总量—强度”的空间关联特征，为实现高质量发展提供理论和现实指导。[方法] 采用IPCC系数法、总体耦合态势模型和双变量空间自相关法分析相关指标。[结果] ①2010—2013年长江中游城市群耕地利用碳排放总量呈显著上升趋势，年均增率为2.0%；2014—2020年则呈下降趋势，年均降幅为2.6%，且碳排放的市域间差异趋于扩大。②长江中游城市群耕地利用的碳排放强度总体处于波动下降态势，年均降幅达4.9%，但受边际递减效应影响，碳排放强度进一步改善的难度不断加大。③2010—2020年长江中游城市群耕地利用碳排放量与碳排放强度的加权中心距离从0.571 km减少到0.312 km，移动方向夹角总体也呈减小趋势，总体耦合态势不断加强。④2010—2020年长江中游城市群耕地利用碳排放总量与强度存在显著空间正相关，同时存在空间异质性。聚集态势主要表现为武汉城市圈“双高”聚集区和环长株潭城市群“双低”聚集区。[结论] 应采取差异化手段对耕地利用碳排放总量与强度进行分区调控，完善碳排放总量和强度“双控”机制。

Abstract

[Objective] The spatial correlation characteristics of the amount and intensity of carbon emissions resulting from cultivated land utilization in an urban agglomeration in the middle reaches of the Yangtze River were analyzed in order to provide theoretical and practical guidance for achieving regional high-quality development.[Methods] The IPCC coefficient method

the overall coupling analysis model

and the bivariate spatial autocorrelation method were used in this study.[Results] ① The amount of carbon emissions resulting from cultivated land utilization in the study area showed a significant upward trend during 2010-2013

with an average annual growth rate of 2.0%. Carbon emissions showed a downward trend during 2014-2020

with an average annual decline of -2.6%. During the study period

the difference between the carbon emissions of each city tended to expand. ② The intensity of carbon emissions resulting from cultivated land utilization in the study area showed a fluctuating downward trend

with an average annual decline of -4.9%. However

due to the marginal decline effect

it was increasingly difficult to further improve the carbon emission intensity. ③ During the study period

the center-weighted distance between the amount and intensity of carbon emissions resulting from cultivated land utilization in the study area decreased from 0.571 km to 0.312 km. The included angle between their moving directions also showed a general declining trend

and the coupling situation continued to strengthen. ④ From 2010 to 2020

there was a significant spatial positive correlation between the amount and intensity of carbon emissions resulting from cultivated land utilization in the study area

and there was also spatial heterogeneity in this effect. The agglomeration situation was mainly manifested in the "high-high" and "low-low" area

which was represented by the Wuhan urban agglomeration and the Changsha-Zhuzhou-Xiangtan urban agglomeration

respectively.[Conclusion] Different regulation measures should be taken according to the spatial correlation pattern between the amount and intensity of carbon emissions resulting from cultivated land utilization. The "dual control" mechanism for the amount and intensity of carbon emissions resulting from cultivated land utilization is also an important consideration.

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