长三角地区跨界共建园:时空特征、城市偏好与影响机制

Cross-regional co-construction of parks in the Yangtze River Delta:Spatiotemporal characteristics,urban preferences and influence mechanisms

基于政府网站收集的2003—2020年长三角41个城市跨界共建园空间数据,运用ESDA、网络层次聚类和地理探测器等方法对跨界共建园时空特征、城市偏好和影响机制分析。结果显示:(1)2003年以来,长三角41个城市跨界园数量整体呈上涨趋势,跨界园地域中心由北向南移动;(2)空间上表现为多点扩散的不规则圈层面状分布,并呈现出地域单极趋势,存在较大空间溢出性和阶段均衡性;(3)跨界园城市形成了5级聚类,分类结果具有城市空间关联性和波动性,第Ⅰ、Ⅱ级城市尤其是盐城、南通等是跨界园区选择的最大偏好城市;(4)因子交互对于跨界共建园时空分布和地区偏好决定力更大,其首位驱动因子为政策制度,其余驱动因子从大到小依次为培训交流、交流平台、干部挂职、产业科研基地转化、市场开放程度,因子之间存在明显城市空间分异。

Based on the spatial data of co-construction parks from government websites,using ESDA,network hierarchical clustering and geographic detector to simulate and analyze the spatial distribution characteristics,urban preferences and influencing mechanisms of co-construction parks.The results show that:①Since 2003,the number of co-construction parks in 41 cities in the Yangtze River Delta has been on the rise,and the regional center of co-construction parks has moved from north to south;②Spatially,it is an irregular circle-like distribution with multi-point diffusion,and presents a regional distribution,with huge spatial spillover and equilibrium.③The co-construction parks cities have formed 5-level clusters,and the classification results have urban spatial correlation and volatility,and especially Yancheng,Nantong of the first and second level cities are the most preferred cities for co-construction parks selection.④Factor interaction has a greater determinant effect on the spatial and temporal distribution and regional preference of co-construction parks.The primary driving factor is policy and system,and the rest of the driving factors in order from large to small are training exchanges,exchange platforms,secondment of cadres,transformation of industrial scientific research bases,and degree of market openness.There are obvious urban spatial differences among the factors.