城市用地水平、布局结构与“三生空间”利用质量——基于中国283个城市的实证研究

Urban Land Use Level,Layout Structure and Utilization Quality of“Production-Living-Ecological Spaces”——Empirical Study of 283 Cities in China

以中国地级及以上城市2012—2019年数据为样本,测算城市生产、生活、生态空间利用质量,探究“三生空间”利用质量与城市用地水平、布局结构之间的关系。结果发现:城市空间利用质量整体在波动中上升,东部地区最高,中部地区最低,超大、特大城市和小城市高于中等城市;总体上,城市人均用地水平与城市空间利用质量存在负向关系;在人口与就业密度较大的城市、资源型城市和非旅游城市,城市人均用地水平增加对城市空间利用质量的不利影响更加显著;城市生产、生活、保障空间的布局结构对二者关系具有调节效应。

Using the data from Chinese prefectural-level cities between 2012 and 2019 as samples,this study measured the utilization quality of urban production,living,and ecological spaces,and explored the relationship among the utilization quality,urban land use level,and layout structure.The results showed that,overall,the quality of urban space utilization has been rising amidst fluctuations,with the highest quality in the eastern region and the lowest in the central region.Megacities,large cities,and small cities exhibited higher quality than medium-sized cities.Generally,there was a negative relationship between the level of urban land use and the quality of urban space utilization.The adverse impact of increased urban land use level on the quality of urban space utilization was more pronounced in cities with larger populations and employment scales,resource-based cities,and non-tourist cities.The layout structure of urban production,living,and support spaces had a moderating effect on this relationship.