Impact of coupling coordination development of port and city environments on urban economic competitiveness:Evidence from the coastal port cities in eastern China

Promoting the coupling coordination development of port and its hinterland city environments is an important way to improve urban economic competitiveness.Based on relevant data of 13 coastal port cities in eastern China from 2000 to 2018,this study explores the coupling coordination development of port and city environments and its impact on urban economic competitiveness by constructing the coupling coordination degree model and the panel threshold model.The research results show that:(1)In terms of the coupling coordination development of port and city environments,most coastal ports and their hinterland cities are in a state of moderate or serious disorder.Overall,the degree of coupling coordination of port and city environments needs to be further improved;(2)The coupling coordination degree of port and city environments has a significant impact on urban economic competitiveness,and this effect gradually increases with the development of the ports and the urban economy.Among the variables that impact the urban economic competitiveness,fixed assets investment and foreign trade are significant factors that can enhance urban economic competitiveness.(3)At present,there is a“U-shaped”relationship between the coupling coordination degree of port-city environments and the urban economic competitiveness.This relationship lies on the right side of the inflection point of the“U-shaped”curve.Therefore,following the concept of assigning priority to ecological development,expanding fixed assets investment and actively developing foreign trade can further enhance the urban economic competitiveness.

Research on the Coupled and Coordinated Development of Tourism and Transport in Chengdu City

Based on a total of 16 indicators selected from the tourism and transport industries,an evaluation index system of the coupling and coordination development level of tourism and transport is constructed.The entropy value method and the coupling coordination degree model are used to conduct an empirical study on the development level and coupling coordination level of the transport and tourism industries in Chengdu City from 2011 to 2020.The results show that,on the whole,the coupling coordination degree of transport and tourism in Chengdu is poor and has been in a state of mild to moderate dysfunction.The development level of tourism lagged behind the development of transport from 2011 to 2012,and the two were in a state of mild dysfunction.However,from 2013 onwards,the development level of tourism was prioritized over the development level of transport.This shift caused the coupling coordination degree of the two industries to decline sharply to 0.23305 in 2013.The development level of the tourism industry increased again,reaching 0.34206 in 2019,which marked an improvement.Consequently,the coordination degree of the transport and tourism industries evolved from moderate dislocation to mild dislocation.Finally,the results of the empirical research are analyzed,and corresponding suggestions are put forward to promote the sustainable growth of the transport and tourism industries in Chengdu City.These suggestions aim to improve the coupled and coordinated development level of the two industries.

Carrying Capacity and Coupling Coordination of Water and Land Resources Systems in Arid and Semi-arid Areas: A Case Study of Yulin City, China

Quantitatively assessing the carrying capacity of water and land resources systems in arid and semi-arid areas is crucial for achieving the 2030 Sustainable Development Goals.In this work,taking Yulin City in China as a case study and employing the Criteria Importance Through Intercriteria Correlation(CRITIC)method,a modified model of coupling degree was developed to evaluate the car-rying capacity of water and land resources systems endowment and utilization,as well as their coupling coordination degree from 2013 to 2020.Our findings indicate that the water and land resources of Yulin are diminishing due to declines in agriculture,higher industrial water use,and wetland shrinkage.However,reallocating domestic water for ecological sustainability and reducing sloping farmland can mitigate this trend of decline.Temporally,as the coupling coordination between water and land resources system endowment in Yulin continuously improved,the coupling coordination between water and land resources system utilization first decreased and then in-creased with 2016 as the turning point.Spatially,the carrying capacity of water and land resources systems,the coupling coordination degree between water and land resources system endowment,and the coupling coordination degree between water and land resources system utilization in Yulin exhibited the same pattern of being higher in the six northern counties than in the six southern counties.Improving the water resources endowment is vital for the highly efficient use of water and land resources.

Coordinated Development of Human Settlement and Economy in County-level Cities in the Yellow River Basin

[Objective] To provide quantification means for comprehensively analyzing the coordinated development of urban human settlement and economy by constructing an index system of economy and human settlement. [Method] By constructing an evaluation index system of economy and human settlement, and using the coordinate measurement model of them, 22 county-level cities in the Yellow River Basin were analyzed. [Result] In the Yellow River Basin, the construction level of economy and human settlement in those county-level cities is low with distinct spatial differences and deteriorating polarization; there is a great spatial corresponding between coordinated development degree and economic level, the higher the economic development level, the higher coordinated development degree in county-level cities; county-level cities around the boundaries of provinces have difficulties in development. [Conclusion] Evaluation standards and models are clear in significance, convenient in application, which can successfully evaluate the coordination of human settlement development in the study region.

Driving Factors of Coordinated Development in Chinese Border Cities:A Case Study of Lincang City in Southwest China

In the context of the“Belt and Road Initiative”,the sustainable development of border cities is paramount for facilitating intergovernmental exchanges.Using the system dynamics approach,we integrated border policy factors to create the Border City Coordinated Development(BCCD-SD)model,encompassing three dimensions:Economic,Social,and Resource-Environment.Furthermore,a comprehensive evaluation indicator,the City Coordinated Development Index(CCDI),was devised.Using Lincang City in Southwest China as a case study,this article examines the trends in city development under three scenarios:Inertial Development,Rapid Development,and Green Development.The research findings demonstrate that the model adeptly captures trends in the city coordinated development indicators.Among the three scenarios,the rapid development scenario stands out,yielding the most favorable economic indicators,superior public infrastructure,and the highest employed population.However,the rapid development path,which is heavily focused on economic growth,intensifies resource and environmental pressures,giving rise to sustainability challenges.In contrast,although the green development scenario trails slightly in economic performance compared to rapid development,it fosters a larger urban population and transition of the employed population into citizens while excelling in resource and environmental aspects.Overall,the CCDI attains its highest score under the green development scenario,surpassing those of rapid and inertia development,signifying superior city development coordination along the green path.This scenario effectively combines economic growth,social progress,and resource-environment protection.This study also emphasizes the pivotal role of ports in the coordinated development of border cities and underscores the necessity of expediting the transition from a“gateway”economy to a“port+”economy.One objective of this article is to encourage border cities to serve as more effective windows to the outside world,promote regional coordination,and achieve high-quality development.

Research on the coordinated utilization of land resource in the intergrated economic region of industry, farming and grazing-a case study of Baotou city in Inner Mongolia

Baotou City is an industrial city developed in the farming-grazing transitional zone in northern China. The development of industry, farming and grazing is very fast. It has become a typical intergrated economic region of industry, farming and grazing. Based on the analysis of utilization of land resources, this paper points out the main conflicts and problems on the utilization of land resources in the city, and puts forward a corresponding proposal.

Path Exploration and Practice of Sponge City Construction in the Pearl River Delta:A Case Study of Dalang Town,Dongguan City

In order to deal with global climate warming and practice the construction of national ecological civilization,a sponge city has become an important national plan for regional comprehensive management and development because it can systematically solve the issues of regional water resources,water security,water environment and water ecology,and provide a comprehensive plan of sustainable development for regional water control,storage and use.Sponge city construction has been carried out across the country.In this paper,taking Dalang Town as an example,and combining its local climate,geological geomorphology,hydrological conditions,current situation and future planning of urban space,management system and other characteristics,the connotation,construction strategy and objectives,index decomposition and other key contents of sponge city were discussed,and the methods of sponge city construction in the builtup area with high rainfall,abundant groundwater and high density were studied to provide reference for formulating solutions and schemes for Dalang Town and developing sponge city construction in the Pearl River Delta.

Coordination of economic development and ecological environment in resource exhausted cities

This paper establishes the evaluation index system of ecological environment and economic development in resource exhausted cities, and calculates the level of economic development and ecological environment during the year 2005-2012 by using the entropy method. Furthermore, this study analyzes the coordination degree and coordinated development degree by using the coordination model. The results show that the coordination relationship of economic development and ecological environment continues to improve from 2005 to 2012 in most of these resource exhausted cities. By 2012, other resource depletion cities are in all kinds of hierarchical coordination except Yichun and Hegang. From the standpoint of coordination development degree, although most of these resource exhausted cities have been increased continuously but the level is also lower except in Tongling and Xinyu. Finally, this paper puts forward the corresponding countermeasures and suggestions according to the results of the analysis.

Evaluation of Overall Coordination of Urban and Rural Land Use in Xiangtan City

Based on regional characteristics of Xiangtan City and in line with relevant principle of overall coordination of urban and rural land use,this paper builds an evaluation system for overall urban and rural land use in Xiangtan City. With weight of each index determined by Analytic Hierarchy Process,it makes quantitative analysis of overall urban and rural land use of Xiangtan City in recent 8 years. Finally,it proposes feasible recommendations for overall coordinated development of urban and rural land use in Xiangtan City according to current land use situations.

山地多中心城市公园绿地生态系统文化服务供需匹配特征

城市公园绿地为居民提供了重要的生态系统文化服务,在促进居民身心健康和提高社会福祉方面发挥着关键作用。以典型山地城市重庆中心城区为例,构建供需匹配评估体系,利用多源数据量化供给与需求,识别供需平衡与协调发展关系。结果表明:(1)重庆市中心城区城市公园绿地生态系统文化服务供需具有显著空间异质性,供给呈北高南低、分散布局的格局,需求呈中心高、外围低的格局;(2)生态系统文化服务供需失衡特征显著,其中52.38%的组团文化服务供给滞后,33.33%的组团属于供给超前状态;供需耦合协调指数平均值为0.50,协调发展程度空间分布呈“中心高、外围低”格局;(3)综合分析供需均衡与耦合协调结果发现,由于供给超前导致了外围城市组团的失调发展,而城市中心区域组团在供给滞后状态下维持了中等水平协调发展程度。总体来看,重庆市中心城区各组团存在不同程度的公园绿地生态系统文化服务供需错配,基于评估提出针对性的城市公园绿地优化策略,可为公园绿地的合理配置与规划提供重要支持。

黄河流域乡村集群的空间协同发展路径——以黄河滨州段为例

立足于黄河流域生态保护和高质量发展、乡村振兴国家战略在山东的地域性实践背景,基于对黄河流域乡村集群的空间协同发展路径研究,阐释乡村集群的概念并归纳沿黄乡村集群特征,从黄河流域乡村的发展壁垒入手,将乡村集群类型划分为城乡融合型、带状集聚型、组团提升型等3种集群空间模式,提出统筹体系架构与空间优化两层面的协同路径。随后,以《滨州市黄河沿岸国土空间规划》为例,以229个村庄为样本,构建由城乡融合示范区、特色集聚段、门户提升段构成的“一区三段”乡村集群空间格局,提出“尺度嵌合、显隐结合、城乡融合”的空间协同路径,以及空间多尺度的分类传导和规划多嵌套的分级传导体系,以期为黄河流域乡村高质量发展提供可参考的路径模式。

皖江城市带数字经济产业协同发展水平评价及障碍因子诊断

数字经济以数字技术和数据要素为核心,是我国增强实体经济新动能、建设现代化产业体系的关键之举。文章依据数字经济的核心要义,从数字基础设施、产业数字化和数字产业化3个维度构建皖江城市带数字经济产业协同发展评价指标体系,采用熵值法和耦合协调度模型测度皖江城市带数字经济产业协同发展水平,结合Kernel密度函数刻画其动态演化规律,进一步引入障碍度模型识别阻碍皖江城市带数字经济产业协同发展的主要因素。结果表明:2011—2021年,皖江城市带数字经济产业协同发展水平逐年提升,受制于产业数字化的滞后发展,数字产业化与产业数字化协同发展水平较低。此外,皖江城市带数字经济产业协同发展的空间动态演进特征差异较大,极化现象明显,梯度特征显著。障碍度分析显示数字产业化是制约皖江城市带数字经济产业协同发展的主要因素。基于此,提出推进皖江城市带数字经济产业协同布局、加速城市带传统产业数字化转型、优化皖江城市群竞合关系、促进皖江城市带新型数字经济产业发展的政策建议。

数字经济与绿色物流的协同发展研究——以智慧城市试点城市为例

文章选取108个智慧城市试点城市2017-2021年面板数据,采用耦合协调模型,对试点城市中数字经济与绿色物流的协同程度进行评价。在此基础上,通过固定效应模型,检验试点城市中数字经济与绿色物流协同关系的影响因素。研究发现:108个智慧城市试点中,华北、华东地区中的试点城市耦合协调度相对较高,西北、东北地区中的试点城市耦合协调度相对较低,不同等级城市之间的耦合协调度存在梯度差异。经济发展水平、信息化水平以及技术行业人力资本对耦合协调关系存在显著相关关系,产业结构与环境建设对耦合协调发展均没有显著影响。

石家庄市县域科技创新与经济发展耦合协调关系时空演变

选取石家庄市13个县域单元作为研究区域,构建科技创新能力和经济发展水平评价指标体系,计算评价指数,测算两者的耦合协调度,使用ArcGIS绘制空间分布图,深入剖析科技创新能力、经济发展水平以及两者耦合协调关系的时空演变特征。研究发现:全市县域科技创新能力和经济发展水平呈现较强的正相关性,且都在2010—2017年间提升速度较快,而在2019年之后提升速度呈减慢的趋势。2010—2021年经济发展水平指数均高于科技创新能力指数,但后者提升速度高于前者,表明石家庄市各县域科技创新能力滞后于经济发展水平,但科技创新能力的发展势头较好。2010年以来,全市县域耦合协调度呈现上升趋势,但耦合协调度与科技创新能力和经济发展水平的变化趋势相似,即2018年之前的提升速度要快于2018年之后。2021年,全市县域耦合协调度等级为“勉强协调发展”,协调发展水平较低,有待进一步提升。

沿黄城市生态保护与高质量发展耦合协调时空演变分析

为丰富黄河流域生态保护和高质量发展研究,并为沿黄城市经济发展提供对策建议,分别构建生态保护和高质量发展评价指标体系,以60个沿黄地级市为样本单元,采用熵值法对指标赋权并计算2010—2020年沿黄各市生态保护指数、高质量发展指数,采用耦合协调度模型计算生态保护与高质量发展耦合度、协调度并划分协调等级,计算相对发展度以判断生态保护与高质量发展耦合协调类型,分析沿黄城市生态保护与高质量发展耦合协调动态演变情况,结果表明:2010—2020年沿黄城市生态保护与高质量发展协调度大都稳中有升、少数城市呈下降趋势,2020年协调等级整体上还较低,尚有37个城市处于失调状态,生态保护与高质量发展的耦合协调任重道远;从空间上看,沿黄城市生态保护和高质量发展协调度总体上呈现下游>中游>上游的格局,研究时段生态保护与高质量发展协调度平均值大小排序前十位的城市多为沿海城市或省会城市、后十位的城市多为各省(区)的边缘城市,地理位置、资源禀赋、政策扶持程度和经济发展模式等对耦合协调度有重要影响;2020年沿黄城市生态保护与高质量发展耦合协调类型为生态保护滞后型的城市有31个、为均衡型的城市有5个、为生态保护领先型的城市有24个,表明沿黄城市生态保护整体上滞后于高质量发展。

城市群型自创区创新共同体的建构基础与策略

创新共同体作为促进跨区域创新体系建设的有效途径,已成为城市群型自创区引领区域均衡发展和跨界协同创新的重要模式,其建构基础决定着自创区的创新路径选择与突破重点。结合城市群型自创区创新共同体的基本内涵与运行结构,设计涵盖自主创新力、协同配置力、效益贡献力和国际竞争力的“四力”评价体系,运用全局熵值法和耦合协调度模型测度我国8个城市群型自创区41个核心园区的“四力”耦合协调水平。结果表明:核心园区“四力”耦合协调水平整体呈结构稳定的偏态分布,板块间差异显著且趋势向好;自创区“四力”两极分化且优势各异。随后基于Dagum基尼系数揭示创新共同体建构基础的组内和组间差异,并对差异性溯源分析。组内差异显示:覆盖核心园区越多,协同创新难度越大;核心园区非均衡异化,差异性变动反差明显。组间差异显示:创新共同体建构基础表现出奋力争先、震荡纠缠、低速稳健、成长禁锢4种类型。基于此,从创新动力、协同配置、效益输出、国际竞争等方面提出创新共同体建构策略,以期为打造高质量紧密型创新生态圈提供参考。

“三生”视角下中国式现代化水平测度与发展路径——以江苏省淮安市为例

基于“三生”协同发展理念与中国式现代化5大特征的内在逻辑关系阐释,构建中国式现代化发展测度指标体系,运用熵值法和耦合协调度模型定量测度江苏省及其各设区市中国式现代化发展水平和结构,并以淮安市为例进行重点分析.结果表明:江苏省中国式现代化发展水平和结构总体进入后疫情时期的恢复和调整阶段;当前淮安市中国式现代化发展存在的主要问题表现在人口规模巨大的现代化发展内生动力不足、全体人民共同富裕的现代化发展不充分问题凸显、人与自然和谐共生的现代化发展潜力有待挖掘等方面,究其本质,在于发展不充分、不均衡.因此,重构产业技术体系、优化产业空间体系、完善产业服务体系,构建城乡一体的现代化产业体系是破解淮安市中国式现代化发展难题的重要路径.

基于耦合协调模型的人水和谐度评价

为了合理地定量评价人水关系,以西安市为例,在人水和谐概念的基础上,构建人水和谐评价指标体系,通过改进G1赋权法计算各指标权重;以水系统和人文系统综合发展水平为基础,采用耦合协调模型计算人水系统协调度,并通过障碍度模型识别人水系统协调发展障碍因素;采用单指标量化—多指标综合—多准则集成评价方法,先计算出水系统健康度和人文系统发展度,再与人水系统协调度集成,最终得到西安市2012—2021年人水和谐评价结果。结果表明:西安市人水协调度逐渐提高,各年份各指标对人水系统协调发展的阻碍程度清晰可见,人水和谐从较不和谐提升至和谐等级;该方法评价结果与实际相符,具有良好适用性,障碍因素的识别对人水关系进一步和谐有一定启发性。

中国省会航空节点城市复杂时空系统协调度变化及空间特征分析

航空运输业提升了城市系统的吸引力并激发新的交通需求,引导城市经济和空间结构快速演进。本文构建了包含经济、规模、外贸、科技、社会、环境、航空等要素在内的城市复杂时空系统指标体系,对中国省会航空节点城市及其构成的7个空管区的复杂时空系统发展的协调程度变化情况及时空聚类特征、空间溢出效应进行了分析。研究发现:2001—2019年,中国31个省会(首府、直辖市)航空节点城市在复杂时空系统发展过程中呈现了或分散、或集中的趋势特征,南方城市在研究末期的协调程度表现更好。7个空管区中,华北区协调度最高,新疆区、西北区、华东区、中南区的协调度水平发展增速较快,航空系统的平均协调度最高。各航空节点城市复杂时空系统协调度的时空聚类模式存在空间分异特征与聚类特征,航空系统在空管区的聚类优势最为突出,经济系统在空管区聚类辐射范围最大。航空、规模、科技与环境系统均表现了正向直接空间溢出效应,经济与科技系统表现了正向间接空间溢出效应。通过全面分析航空节点城市及空管区的复杂时空系统协调度变化,精准判定了航空节点城市多指标系统在区域发展过程中的影响程度及时空分布异质性,对拓展航空地理研究及促进航空节点城市高质量综合发展提供理论依据。

大运河沿线省市文旅商产业融合发展研究——基于耦合协调、时空演进与发展路径分析

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