The Spatial Pattern Evolution and Influencing Factors of Logistics Enterprises in Ningbo
基于2004、2009和2014年宁波物流企业数据，以街道为空间单元分析其分布演化，发现企业集中在距市中心30公里内，北仑区为集聚中心，地理可达性、集聚要素和政府政策是主要影响因素。
Based on the data of logistics enterprises in 2004, 2009 and 2014, the paper discusses the spatial distribution of logistics enterprises and its evolution in Ningbo with streets as its space unit. Adopting negative binomial regression model, the paper confirms the factors that influence the spatial distribution and location choice of logistics enterprises,and compares the differences of its effects on logistics enterprises, transport logistics enterprises and non- transport logistics enterprises. The results show: Logistics enterprises are concentrated in the range of 30 km from the center of Ningbo; Hot regional agglomeration is mainly distributed in Qi Jia Shan Street, Xinqi Street, Xiaqi Street, Daqi Street and Xiao Gang Street in Beilun District. Non- transport logistics enterprises have formed the space development pattern with Beilun area as the gathering center. The gathering center of transportation logistics enterprises is gradually coming into being. Negative binomial regression model shows: geographical accessibility, gathering elements and government policies are the main factors that affect the pattern formation of logistics enterprises. The effects of regional accessibility on non-transportation logistics enterprise's location choice are higher than those on transportation logistics enterprises' while the impact of government policies on transportation logistics enterprises is stronger.