Coupled Coordination and the Spatial Connection Network Analysis of New Urbanization and Ecological Resilience in the Urban Agglomeration of Central Guizhou, China

IF 3.2 2区环境科学与生态学 Q2 ENVIRONMENTAL STUDIES

Land Pub Date : 2024-08-09 DOI:10.3390/land13081256

Chengmin Wu, Haili Ren

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Abstract

This study evaluates the new urbanization (NU) quality and the ecological resilience (ER) of 33 districts and counties in the Urban Agglomeration of Central Guizhou from 2010 to 2020. For this purpose, we used a modified coupled coordination degree (CCD) model, spatial autocorrelation analysis, and trend surface analysis to analyze the spatiotemporal evolutionary characteristics of the CCD of NU and ER. Meanwhile, we used a modified gravity model and social network analysis to investigate the spatial connection network (SCN) characteristics of the CCD of NU and ER. The results show that (1) the general NU quality has increased significantly in the Urban Agglomeration of Central Guizhou. There is, however, a downward trend in ER. (2) For the CCD of NU and ER in the Urban Agglomeration of Central Guizhou, there is coupling dissonance, with a double U-shaped arc, characterized by west > north > south > east > central. (3) The network density increases and then decreases. Network connectivity is 1, and network efficiency decreases and then increases. (4) During the study period, the SCN is characterized by significant core–edge characteristics; there are no “island nodes” in the SCN.

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中国黔中城市群新型城镇化与生态恢复力的耦合协调与空间关联网络分析

本研究评估了黔中城市群33个区县2010-2020年的新型城镇化（NU）质量和生态恢复力（ER）。为此，我们采用修正的耦合协调度（CCD）模型、空间自相关分析和趋势面分析，分析了新型城镇化和生态恢复力CCD的时空演化特征。同时，我们利用修正的重力模型和社会网络分析，研究了NU和ER的CCD的空间连接网络（SCN）特征。研究结果表明：(1) 黔中城市群的一般 NU 质量显著提高。2）黔中城市群 NU 和 ER 的 CCD 存在耦合失调，呈双 U 型弧线，即西部 > 北部 > 南部 > 东部 > 中部。(3）网络密度先增后减。网络连通性为 1，网络效率先降后升。(4) 在研究期间，SCN 具有显著的核心-边缘特征；SCN 中不存在 "孤岛节点"。

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来源期刊

Land ENVIRONMENTAL STUDIES-Nature and Landscape Conservation

CiteScore

4.90

自引率

23.10%

发文量

1927

期刊介绍： Land is an international and cross-disciplinary, peer-reviewed, open access journal of land system science, landscape, soil–sediment–water systems, urban study, land–climate interactions, water–energy–land–food (WELF) nexus, biodiversity research and health nexus, land modelling and data processing, ecosystem services, and multifunctionality and sustainability etc., published monthly online by MDPI. The International Association for Landscape Ecology (IALE), European Land-use Institute (ELI), and Landscape Institute (LI) are affiliated with Land, and their members receive a discount on the article processing charge.