Examining the Relationship between Urban Land Expansion and Economic Linkage Using Coupling Analysis: A Case Study of the Yangtze River Economic Belt, China
Examining the Relationship between Urban Land Expansion and Economic Linkage Using Coupling Analysis: A Case Study of the Yangtze River Economic Belt, China
复制标题
用耦合分析检验城市土地扩张与经济联系的关系：以中国长江经济带为例
DOI：
10.3390/su12031227
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发表时间：
2020-02-01
期刊：
影响因子：
3.9
通讯作者：
Yang, Xuefeng
中科院分区：
文献类型：
--
作者：
Chen, Bowen;Wu, Changyan;Yang, Xuefeng
城市用地扩张是我国城市化和工业化进程中的一个重要问题。加强区域间的经济联系与合作，对于有效控制无序的土地利用格局，实现土地的可持续集约利用具有重要意义。以往的研究很少探讨ULE和经济联系之间的关系。因此，本文运用社会网络分析和引力模型分析了长江经济带城镇经济与经济联系的空间格局。通过构建二元空间自相关模型和耦合协调度模型，研究了城市土地利用与经济联系的空间关系和耦合程度。结果表明，YREB经历了快速的ULE，面积从1990年的4.24 x 10（4）km（2）增加到2015年的7.89 x 10（4）km（2）。经历快速ULE的城市逐渐从东部转移到西部的YREB。东部城市的经济关联度明显高于西部城市。我们的二元空间模型进一步证明了ULE与经济联系之间存在较强的负空间相关特征。这表明，经济联系越高，ULE的速度越低。此外，ULE与经济联动的耦合协调表明，总体耦合阶段由对抗阶段转向磨合阶段。然而，长三角区域内的耦合协调呈现出显著的空间异质性，城市群内大部分城市的城市经济生活与经济联系处于勉强平衡、轻度不平衡或严重不平衡的状态。通过考虑目前的举措的限制和障碍，在大区域尺度上的可持续土地利用的建议和政策含义。
Urban land expansion (ULE) has caused negative effects as a result of urbanization and industrialization in China in the past few decades. Strengthening economic linkage and the cooperation among regions has great implications for effectively controlling disorderly ULE and achieving sustainable and intensive land use. Previous research has rarely investigated the relationship between ULE and economic linkage. Therefore, this study analyzes the spatial patterns of ULE and economic linkage in the Yangtze River Economic Belt (YREB) of China via social network analysis and a gravity model. Moreover, the spatial relationship and coupling level between ULE and economic linkage are investigated by building a bivariate spatial autocorrelation model and a coupling coordination degree model, respectively. The results indicate that the YREB experienced rapid ULE, and the area increased from 4.24 x 10(4) km(2) in 1990 to 7.89 x 10(4) km(2) in 2015. The cities that experience rapid ULE have gradually transferred from the east to the west of the YREB. In addition, the economic linkage in eastern cities is evidently higher than that of western cities. Our bivariate spatial model further proves that there are strong negative spatial correlation characteristics between ULE and economic linkage. This indicates that the higher the economic linkage, the lower the speed of ULE. Moreover, the coupling coordination between ULE and economic linkage show that the overall coupling stage changed from an antagonistic stage to a running-in stage. However, the coupling coordination in the YREB presented significant spatial heterogeneity, and most cities in urban agglomeration had a relationship between ULE and economic linkage that was barely balanced, slightly unbalanced, or seriously unbalanced. By considering the limitations and obstacles of current initiatives, suggestions and policy implications for sustainable land use at large regional scales are suggested.