东北沿海港口群腹地空间格局及驱动机理

The Northeast Coastal Ports Group of Hinterland Space Structure and Drive Mechanism Analysis

以辽宁沿海港口群—东北腹地为研究对象,在Huff模型基础上,综合考虑港城引力、时间成本因素,分别利用实际最短时间距离和加权时间距离,探究港口群腹地的范围划分问题,并在此基础上进一步划分混合腹地范围。研究结果表明:1营口港凭借时间成本的优势对大连港在东北地区的影响力造成威胁,腹地范围不仅局限在沈阳经济区,而且沿哈大交通线深入到东北腹地。丹东港腹地包括丹东、本溪和通化市,锦州港口腹地包括辽西地区及赤峰和通辽市,盘锦港和葫芦岛港服务于本市。2加权时间距离考虑腹地城市与港口城市的空间吸引作用,大连港腹地范围扩展至吉林、黑龙江大部,营口港腹地缩减。锦州港腹地范围为锦州市、朝阳市、阜新市。丹东港、盘锦港和葫芦岛港腹地范围为所在市。3混合腹地按照两种距离测度都分为三种类型,其中大连港与营口港混合腹地范围最广。归纳演化机理为港口综合能力主导腹地格局、港腹可达水平制约腹地格局、腹地城市综合实力抵消距离衰减。

The paper take Liaoning coastal port group- northeastern hinterland as the research object,on the basis of the Huff model,considering harbour city gravity, time, cost factors,respectively using real time shortest distance and time weighted distance,, explore the scope of the port group of hinterland division problem.The results show that,port of Yinkou with the advantages of time costs pose a threat to the influence of the Dalian port in northeast China. Hinterland range is not only limited in Shenyang economic zone, along the Harbin to Dalian traffic line and deep into the northeast hinterland.Dandong port hinterland, including Dandong, Benxi, and Tonghua, Jinzhou port hinterland including western Liaoning region and Chifeng and Tongliao, Panjin port and Huludao port service in this city.Weighted time distance consider hinterland cities and the space of the port city of attraction,Dalian port hinterland range extended to Jilin,Heilongjiang, port of Yinkou hinterland cut.Jinzhou port hinterland range for Jinzhou city, Chaoyang city, Fuxin city.Dandong port, Panjin port and Huludao port hinterland range for the city. Inductive evolution mechanism for the port comprehensive ability dominate the hinterland pattern,port of abdomen can reach deep level restriction pattern and the hinterland of urban comprehensive strength offset distance attenuation.