Spatial Effects of Cross Yangtze Highway Passage on Interurban Linkages in the Yangtze River Delta
Received date: 2019-08-27
Revised date: 2020-05-30
Online published: 2025-04-01
For a long time,there has been a gap between northern and southern bank area in the Yangtze River Delta (YRD). In order to achieve better cross-river cooperation,the cross Yangtze highway passage has played an important role in accelerating factor flows and coordinating the spatial linkage during the process of regional integration. Under the above background and from the perspective of spatial distance and administrative division,this paper studies the overall cross-river linkages of 41 cities and the characteristics of the spatial pattern in this area. The results are indicated as follows. 1) The construction of the river-crossing passages has significantly improved the accessibility between banks. There are distinct differences in cross-river linkage among cities in the YRD region. Specifically,cities with high level of linkages concentrating along the river,presenting a trend of decrease with distance from the river bank. In addition,the linkage level in the northern bank is relatively lower than that of the southern bank. Meanwhile,the growth of cross-river linkages presents a transport-oriented feature. The transport corridor acts as a crucial part in connecting cross-river bridges and farther cities,stimulating the developing potential of these cities and thus making some of these cities obtain better opportunities than the near-shore area. 2) Cross-river linkage intensity between city pairs demonstrates zonal distributed characteristics,which mainly manifested as inter- and intra-provincial differences. There are relatively high linkages between cities in Jiangsu and Shanghai,cities of northern Zhejiang. However,only the linkages between cities of southern Anhui and central Anhui exceed the average inside Anhui cities. Moreover,higher linkages are concentrated in intra-provincial cities,such as cities of south Jiangsu and central Jiangsu. Growth rate of inter-provincial linkage is greater than intra-provincial linkage. With the opening up of connecting channels between each province in Yangtze River Delta region,the cost of linkage between inter-provincial neighboring cities as well as regional peripheral regions and central cities has been greatly reduced. 3) Each passage has access utilization and hinterland differences. With the help of the cross-river channel network built earlier,the higher linkage network is further shifted to eastern regions such as Jiangsu and Zhejiang where the comprehensive urban strength is higher,so as to release the potential of river-crossing development in coastal areas. During the research period,the construction of cross-river channel has promoted north-south integration continuously. As a transport corridor composed of cross-river bridges and high-grade road network,the diversification of cross-river choice has enhanced the intensity of cross-river linkage. The construction of the "core-periphery" high-grade highway network in the Yangtze River Delta can be seen as an opportunity to strengthen the linkages between long-distance cities lying in northern and southern bank of the Yangtze River and also between peripheral cities. The cross Yangtze highway passages have lessened the extent of development imbalance generated by the difference of location in order to reconstruct the spatial pattern both in northern and southern bank of the Yangtze River,and thus to promote regional integration.
LIU Weichen , CAO Youhui , LIANG Shuangbo , GUO Jiaying . Spatial Effects of Cross Yangtze Highway Passage on Interurban Linkages in the Yangtze River Delta[J]. Economic geography, 2020 , 40(7) : 49 -56 . DOI: 10.15957/j.cnki.jjdl.2020.07.006
表1 长三角地区城市质量综合评价体系Tab.1 Evaluation index system of the comprehensive power among cities |
一级指标 | 二级指标 |
---|---|
城市规模 | 常住人口(万人)、建成区面积(km2)、城市化率/城镇人口比重(%) |
经济发展 | GDP(亿元)、人均GDP(元)、GDP中第三产业占比(%)、人均固定资产投资额(元)、实际FDI(亿美元)、社会消费品零售总额(亿元)、地方财政收入(亿元) |
人民生活 | 人均城乡居民年末存款余额(元)、城镇居民人均可支配收入(元)、农村居民人均纯收入(元)、城镇居民人均住房面积(m2)、农村居民人均住房面积(m2) |
社会建设 | 万人拥有医疗机构床位数(张)、人均公共图书馆藏书量(册)、人均邮电业务量(元)、客运总量(万人)、货运总量(万t)、R&D支出(亿元) |
环境保护 | 建成区绿化覆盖率(%)、垃圾粪便年处理能力(万t)、三废综合利用率(%)、空气质量达到二级以上天数占比(%) |
表2 长江三角地区过江通道基本信息Tab.2 Basic information of cross Yangtze passages in the YRD |
过江通道名称 | 通车年份 | 通道限速 | 南岸城市 | 北岸城市 |
---|---|---|---|---|
南京长江大桥 | 1968 | 50 km/h | 南京市 | 南京市 |
铜陵长江公路大桥 | 1995 | 60 km/h | 铜陵市 | 铜陵市 |
江阴长江大桥 | 1999 | 100 km/h | 江阴市 | 靖江市 |
芜湖长江大桥 | 2000 | 70 km/h | 芜湖市 | 芜湖市 |
江阴长江大桥 | 1999 | 100 km/h | 无锡市 | 泰州市 |
南京长江二桥 | 2001 | 100 km/h | 南京市 | 南京市 |
安庆长江大桥 | 2004 | 100 km/h | 池州市 | 安庆市 |
润扬长江大桥 | 2005 | 100 km/h | 镇江市 | 扬州市 |
苏通长江大桥 | 2008 | 100 km/h | 苏州市 | 南通市 |
南京长江隧道 | 2010 | 80 km/h | 南京市 | 南京市 |
南京长江四桥 | 2012 | 100 km/h | 南京市 | 南京市 |
泰州长江大桥 | 2012 | 100 km/h | 泰州市 | 扬中市 |
马鞍山长江大桥 | 2013 | 100 km/h | 马鞍山市 | 马鞍山市 |
铜陵长江公铁大桥 | 2015 | 100 km/h | 铜陵市 | 芜湖市 |
上海长江隧桥 | 2009 | 隧道:80 km/h | 上海市 | 南通市 |
桥梁:100 km/h | ||||
望东长江大桥 | 2016 | 100 km/h | 池州市 | 安庆市 |
南京扬子江隧道 | 2016 | 70 km/h | 南京市 | 南京市 |
表3 长三角地区城市对间过江联系强度特征Tab.3 Statistical characteristics of cross river linkages between cities on the YRD |
地区 | 类型 | 2000 | 2008 | 2016 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
苏北 | 苏中 | 皖北 | 皖中 | 苏北 | 苏中 | 皖北 | 皖中 | 苏北 | 苏中 | 皖北 | 皖中 | ||||
上海 | 均值 | 2.26 | 9.99 | 1.04 | 2.08 | 13.78 | 95.99 | 4.97 | 9.31 | 53.23 | 353.04 | 17.54 | 37.08 | ||
变异系数 | 0.43 | 0.13 | 0.54 | 0.58 | 0.57 | 0.95 | 0.39 | 0.53 | 0.61 | 0.79 | 0.36 | 0.66 | |||
苏南 | 均值 | 1.41 | 7.67 | 0.79 | 2.79 | 12.41 | 71.74 | 5.34 | 14.08 | 59.43 | 337.41 | 22.17 | 72.09 | ||
变异系数 | 0.74 | 0.57 | 1.11 | 1.76 | 0.65 | 0.59 | 0.87 | 1.33 | 0.63 | 0.53 | 0.87 | 1.53 | |||
皖南 | 均值 | 0.25 | 0.69 | 0.26 | 0.90 | 2.07 | 5.11 | 1.76 | 7.43 | 10.00 | 23.43 | 7.54 | 38.25 | ||
变异系数 | 0.75 | 0.94 | 1.01 | 1.00 | 0.70 | 0.81 | 0.84 | 0.90 | 0.68 | 0.78 | 0.79 | 0.98 | |||
浙东北 | 均值 | 0.35 | 1.17 | 0.19 | 0.38 | 3.16 | 13.27 | 1.47 | 3.09 | 15.87 | 64.91 | 6.48 | 16.03 | ||
变异系数 | 0.59 | 0.54 | 0.70 | 0.69 | 0.61 | 0.73 | 0.60 | 0.70 | 0.61 | 0.70 | 0.55 | 0.76 | |||
浙西南 | 均值 | 0.12 | 0.27 | 0.08 | 0.14 | 1.03 | 2.69 | 0.57 | 1.18 | 5.46 | 14.46 | 2.70 | 6.77 | ||
变异系数 | 0.47 | 0.40 | 0.53 | 0.45 | 0.41 | 0.42 | 0.43 | 0.50 | 0.45 | 0.46 | 0.36 | 0.57 |
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