摘要
跨江发展是滨江城市拓展发展空间,优化城市布局的有效措施。文章以南昌市为例,选取1990、2000、2010、2017年共4期遥感影像,利用GIS空间分析等方法对其建设空间生长过程及动力机制进行研究,探索城市跨江战略实施下研究区建设空间演化的特征与规律。结果表明:①1990年代以来,南昌市建成区建设空间生长总体经历了低速生长阶段(1990—2000年)、加速生长阶段(2000—2010年)、稳定生长阶段(2010—2017年),分别对应城市跨江发展的起步期、成长期、成熟期。②空间生长模式可划分为填充式、外延式、飞地式3类,不同阶段其生长模式呈现差异,其中低速生长阶段3类模式占比相差不大,加速生长阶段以外延式扩展为主导,稳定生长阶段则以填充式扩展为主导。③不同阶段对应的主导影响因素也有所不同,低速生长阶段主要受滨江沿岸自然环境、经济发展程度及跨江交通设施的制约,城市跨江发展缓慢,两岸相对独立发展;加速生长阶段,由人口增长、经济快速发展的内生推力以及地方政府发展意愿、跨江交通设施不断完善的外生拉力共同驱动城市空间生长,加速城市跨江发展;稳定生长阶段,科技进步带动交通工程技术的提升及市场驱动下的产业结构转型是促进空间生长的主要驱动因素,该阶段滨江新区逐渐发展成为新的城市中心,城市"一江两岸"格局得到巩固。
Cross-river development is an effective measure to expand the development space and optimize the layout of city.Taking Nanchang City as an example,this paper selects four remote sensing images in 1990,2000,2010 and 2017,studies the spatial growth process and dynamic mechanism of its construction by using GIS spatial analysis and other methods,and explores the characteristics and laws of the spatial evolution of the construction under the implementation of the urban cross-river strategy.The results show that:1)Since the 1990 s,the urban construction space growth in the study area has generally experienced the low-speed growth stage(1990-2000),the accelerated growth stage(2000-2010)and the stable growth stage(2010-2017)which respectively correspond to the initial stage,the growth stage and the mature stage of the urban cross-river development.2)The spatial growth pattern of the study area can be divided into three types:filling type,extension type and enclave type.The growth pattern is different in different stages,among which the proportion of three types in the low-speed growth stage is not different,the extended growth is dominant in the accelerated growth stage,and the filling expansion is dominant in the stable growth stage.3)The main influencing factors corresponding to different stages of urban construction space growth are also different.The low-speed growth stage is mainly restricted by the natural environment along the riverside,the degree of economic development and the cross-river traffic facilities.The urban cross-river development is slow and the two sides are relatively independent.The accelerated growth stage is driven by the endogenous push that is population growth and rapid economic development,and the external pulling force that is the development willingness of local governments and the continuous improvement of crossriver traffic facilities,which jointly drive the growth of urban space and accelerate the cross-river development of the city.In the stable growth stage,the promotion of traffic engineering technology driven by scientific and technological progress and the transformation of industrial structure driven by the market are the main driving factors to promote the growth of urban construction space in the research area.In this stage,Bin Jiang New Area gradually develops into a new urban center and consolidates the pattern of"one river and two areas".
作者
吴巍
陈敏
赵晓杰
张福梅
钟业喜
WU Wei;CHEN Min;ZHAO Xiaojie;ZHANG Fumei;ZHONG Yexi(School of Urban Construction,Jiangxi Normal University,Nanchang 330022,Jiangxi,China;Key Laboratory of Poyang Lake Wetland and Watershed Research,Ministry of Education,Nanchang 330022,Jiangxi,China;School of Geography and Environment,Jiangxi Normal University,Nanchang 330022,Jiangxi,China)
出处
《经济地理》
CSSCI
CSCD
北大核心
2020年第11期77-85,共9页
Economic Geography
基金
江西省高校人文社会科学研究项目(GL17238)
江西省教育厅科学技术研究项目(GJJ150315)。
关键词
跨江城市
跨江发展
建设空间
交通设施
建设用地
动力机制
南昌
cross-river city
cross-river development
construction space
transportation facilities
construction land
power mechanism
Nanchang
