时空锥视角下土地集约利用与新型城镇化交互效应

Interaction Between Intensive Land Use and New-type Urbanization from Perspective of Spatiotemporal Cone

[目的]探究土地集约利用与新型城镇化之间的定性交互机理,为区域高质量发展提供参考。[方法]依据时空锥理论和系统论,从土地集约利用的“资源—资产—资本”属性和新型城镇化的“规模—集聚—红利—财富”效应出发,构建二者的交互机理并据此组建指标体系。以2003—2020年广西壮族自治区14个市的面板数据为样本,采用熵值法、模糊综合评价法和耦合协调模型定量评估二者的发展状态,并运用面板向量自回归模型(PVAR)对两者的交互效应进行实证分析。[结果]①广西土地集约利用以资源性(0.388)和资产性(0.541)为主,平均综合指数由0.104增至0.318。新型城镇化以规模(0.470)和红利效应(0.306)为主,平均综合指数由0.184增至0.425。②二者的耦合协调度由0.367增至0.600,耦合协调状态呈“轻度失调—濒临失调—勉强耦合协调—初级耦合协调”的向好演变态势,但各市级单元的发展差异较大。③从PVAR模型结果来看,土地集约利用与新型城镇化之间存在正向的交互作用,二者受自身发展惯性的冲击显著,土地集约利用对新型城镇化的促进程度(47.11%)大于新型城镇化对土地集约利用的促进程度(35.05%)。[结论]土地集约利用的“资源—资产—资本”属性相对新型城镇化来说属于生产力范畴,新型城镇化的“规模—集聚—红利—财富”效应相对土地集约利用来说属于生产关系范畴,在一定的时空视角下二者之间存在不对等的作用与反作用关系。

[Objective]The interaction mechanism between intensive land use and new-type urbanization was determined in order to provide a reference for regional high quality development.[Methods]We qualitatively analyzed the interaction mechanism between the“resource-asset-capital”attribute of intensive land use and the“scale-agglomeration-dividend-wealth”effect of new-type urbanization,and set up an evaluation index system.We used survey data from 14 cities in Guangxi Zhuang Autonomous Region from 2003 to 2020 to quantitatively evaluate the development status of two cities by using an entropy method,a coupling coordination model,and a fuzzy comprehensive evaluation method.The panel vector autoregressive(PVAR)model was used to empirically analyze the interaction between the two cities as well.[Results]①Intensive land use in Guangxi was dominated by resource(0.388)and asset(0.541)intensiveness,and the average composite index increased from 0.104 to 0.318.New-type urbanization was dominated by the scale effect(0.470)and the dividend effect(0.306).The average composite index increased from 0.184 to 0.425.②The coupling coordination degree between intensive land use and new-type urbanization increased from 0.367 to 0.600,and the coupling coordination state showed a good evolution trend of“mild imbalance-near imbalance-low coupling coordination-major coupling coordination”.However,the development of each municipal unit was quite different.③According to the PVAR model results,there was a significant interaction between new-type urbanization and intensive land use.However,the influence of intensive land use level on new-type urbanization level was greater(47.11%)than that of new-type urbanization level on intensive land use level(35.05%).[Conclusion]Compared with new-type urbanization,the“resource-asset-capital”attribute of intensive land use belonged to the category of productivity.Compared with intensive land use,the“scale-agglomeration-dividend-wealth”effect of new-type urbanization belonged to the category of production relationship.There was an unequal interaction relationship between new-type urbanization and intensive land use.