北部湾经济区城市土地集约利用与经济高质量发展耦合协调关系及障碍诊断

北部湾经济区作为中国第一个国际区域经济合作区,研究城市土地集约利用与经济高质量发展的协调关系对促进该地区新型城市化发展具有深远意义。运用多因素综合评价、耦合协调度以及障碍度等模型分析了2008—2018年北部湾经济区的城市土地集约利用与经济高质量发展耦合协调关系的时空特征及其影响因素。结果表明:(1)北部湾经济区各市土地集约利用水平和经济高质量发展指数显著提升且空间差异减小,区域均值分别由0.175,0.153升至0.863,0.763;(2)研究区二者耦合协调性趋于优化,由轻度失调转为优质协调,各市均处于良好及以上水平的高度协调发展阶段;(3)各市“土地-经济”两大基本发展系统明显改善,城市竞争力增强,除防城港市属于土地集约利用超前型外,南宁市、北海市、钦州市、玉林市和崇左市实现了土地集约利用与经济高质量同步发展;(4)土地利用结构、社会经济水平、生态环境压力和区域发展政策是影响二者协调发展的主导因素,优化土地利用结构、加强生态环境保护和提升科技创新能力是促进北部湾经济区城市土地集约利用与经济高质量优质协调发展的关键。研究结果可为北部湾经济区制定一体化的区域城市发展政策提供参考依据。

The Coupling Coordinated Relationship and Obstacle Diagnosis Between Urban Intensive Land-Use and High-Quality Economic Development in Beibu Gulf Economic Zone

As China's first international regional economic cooperation zone in the Beibu Gulf Economic Zone, the study of the coordinated relationship between urban land intensive use and high-quality economic development is of far-reaching significance to the promotion of new urbanization in this region. The models of the multi-factor comprehensive evaluation, coupling coordination degree and obstacle degree were used to analyze the spatial-temporal characteristics and influencing factors of the coupling coordinated relationship between urban intensive land-use and high-quality economic development in Beibu gulf economic zone from 2008 to 2018. The results show that:(1)the intensive land-use level and high-quality economic development index in the cities of the Beibu gulf economic zone were significantly improved and the spatial differences were reduced; the regional average value had respectively been elevated from 0.175 and 0.153 to 0.863 and 0.763;(2)the coupling coordination between the two researched areas which transformed from mild imbalance to high-quality coordination tends towarded optimization, and all cities were in a stage of highly coordinated development at a good level and above;(3)the two basic development systems including the lands and economy in the cities were apparently improved; the city competitiveness was enhanced; Nanning, Beihai, Qinzhou, Yulin and Chongzuo had all realized synchronous development between the intensive land-use and the high-quality economy while Fangchenggang city was the advanced intensive land-use;(4)the main factors which can affect the coordinated development between the intensive land-use and the high-quality economic development were land utilization structure, the level of society and economy, the ecological environment pressures as well as the regional development policy; the keys to promote the high-quality coordinated development between the urban intensive land-use and the high-quality economic development in Beibu gulf economic zone were optimizing land structure, strengthening of the protection of ecological environment and enhancement of technological innovation ability. The research results can provide a reference for the formulation of integrated regional urban development policies in the Beibu Gulf Economic Zone.