Comparative Analysis of the Evolution of Community Space in Chengdu-Chongqing Region: A Case Study of Main Urban Areas in Chengdu and Chongqing

Due to the integrated development between Chengdu and Chongqing,there are a large number of residents flowing into the two cities from their surrounding areas,so community renewal is imminent.Because of the similarity in the historical and cultural background of the two places,a comparative analysis of the evolution of community space in Chengdu-Chongqing Region enables Chengdu and Chongqing learn from each other and speed up the pace of renewal.This paper analyzed the evolution of community space in main urban areas of Chengdu and Chongqing.Specifically,the evolution of community space in Chengdu and Chongqing went through three stages.The starting time of community renewal in the two places was very close,but the duration of each stage varied.The second stage of Chengdu continued for a longer time,so its renovation and renewal of the community space was more detailed and thorough,and the emphasis and extension direction of the evolution of the community space were different.The evolution of community space in both Chengdu and Chongqing went through"mechanical renewal of demolition and construction—small-scale gradual renewal",but the path of renewal and development of the community space in Chengdu was faster.This paper,from the perspective of the evolution of community space,put forward the framework and content of community renewal in Chengdu and Chongqing based on community development and elaborated the community research content based on community development.

The Integration and Sustainable Development of Chengdu-Chongqing Urban Agglomeration

Urban Agglomeration is an inevitable outcome of urbanization and industrialization, and a main form of urban development. Based on the analysis of urbanization and urban system situation, this paper will discuss the integration of urban agglomeration development, using the urban area of Cheng (Chengdu)-Yu (Chongqing) Urban agglomeration (CYUA) as a case study. By means of industries, population and spatial integrations, the function, strength and competition of CYUA will be improved and this urban agglomeration will transit from a budding state to a growing and mature one in future. The sustainable development of CYUA will depend on countermeasures, such as accelerating industrialization and urbanization, building a traffic network and express roads, strengthening the ability of self-sufficiency, enlarging the ecological construction and environmental protection, and establishing the synergetic institution of cross districts.

The evaluation of interregional status and development proposals of Chongqing

As the fourth municipality directly under the Central Government, there exist some economic development obstacles including dual economic structures and regional development disparity in Chongqing. According to the local position, economic basis and technical superiority, Chongqing should be an economic growth pole in the interior of China so that it is necessary to evaluate its interregional status. Although the position of economic strength is generally among all of the administrative divisions, the position of Chongqing is very prominent between Southwest China and the Yangtze River industrial zone. In order to give play to the spread action of a growth pole and to promote regional economic coordinated development of the Central and Western part of China, Chongqing should adopt the regional sustained and rapid development strategy. Correspondingly, a series of development proposals has also been put forward in the paper.

Comparison of Integrated Urban-Rural Development between Chongqing and Chengdu

On the basis of review of integrated urban and rural development process in Chengdu and Chongqing, we summed up experience of reform and compared the practice in these two regions. Results show that both regions have opened free flow of rural and urban factors, made detailed and scientific planning of integrated urban and rural development, and carried out exploration in equalization of urban and rural public service.

The Theory of Unitary Development of Chengdu and Chongqing

Chengdu and Chongqing are two megalopolises with the synthesized economic strength and the trongest urban competitiveness in the entire western region, which have very important positions in the devel- opment of western China. Through horizontal contrast of social economic developing levelof the two cities, the wo cities’ economic foundation of unitary development is analyzed from complementary and integrative elationship.Then the policies and measures of economic unitary development of two cities is put forward.

REGIONAL ECONOMY Chongqing Tells Story of Changes on First Anniversary as Municipality

In early spring, this reporter visited Chongqing, China’s youngest municipality. Having been promoted to the status of a municipality for just a little more than a year, this mountain dry has seen great changes: more bridges have been built, roads have been widened, and streets have become better lit. Although there are still a lot of difficulties, the trend of development is promising.

ANALYSIS ON EFFECT OF SOUTH ASIA HIGH ON MID-SUMMER EXTREME DROUGHT AND FLOOD IN SICHUAN-CHONGQING REGION

NCEP/NCAR data are utilized to analyze an extreme flood year(1998) and an extreme dry year(2006) in the Sichuan-Chongqing region(SCR) and the results are as follows. The positive divergence of South Asia High(SAH) is stronger in the flood year; the position of the ridge line of SAH is southward compared with the annual average; Western Pacific Subtropical High(WPSH) extends westward and its ridge line is southward. In the drought year, the positive divergence of SAH is weaker, its ridge line is northward, and the position of WPSH is also northward. As shown in the dynamics, in drought(flood) years, negative(positive) vorticity advection in the upper atmosphere can cause the atmosphere to ascend(descend), and anomalous circulation of SAH displays divergence(convergence), and anomalous circulation of the lower atmosphere shows convergence(divergence). Thermal structure of the atmosphere shows that there is warm(cold) temperature advection in the lower atmosphere, and the vertical distribution of diabetic heating causes SAH's local circulation to display convergence(divergence) and affects vertical motion of the lower atmosphere circulation eventually. To some extent, the two extreme years in the SCR is closely related to the vertical motion of atmosphere circulation and the variation of such vertical motion is caused by differences of interactions between SAH and lower atmosphere circulations.

The 10^(th) Annual Conference of the Consortium for Western China Development Studies held in Chongqing, China

On June 15,2015,the 10th Annual Conference of the Consortium for Western China Development Studies,with the theme of New Urbanization in Western China Development,was held at Chongqing,China.The conference was co-sponsored by Southwest University,Consortium for Western China Development Studies,Western

New urbanizations in Western China Development The 10th Annual Conference of the Consortium for Western China Development Studies will be held on June 15, 2015 at Southwest University, Chongqing, China

Since its establishment in 2004,the Consortium for Western China Development Studies(CWCDS for short)has organized nine conferences on various issues concerning the development of western China.The initial conference was held in Chengdu in 2004 with the theme of"Towards a New Paradigm for Developing Western China:Meeting the Challenges of Sustainable Development and Globalization."The eight follow-up conferences continued to focus on the different is-

地方政府竞争对土地资源错配的影响研究——基于成渝地区双城经济圈面板数据

成渝地区双城经济圈是我国经济的重要新兴增长极,但其发展相对滞后,经济增长内生动力不足,依靠土地出让的地方政府竞争行为依然普遍存在,不利于土地资源的高效配置。基于政府土地出让视角,构建地方政府博弈模型,选取成渝地区双城经济圈2009—2017年城市面板数据,采用系统GMM的实证研究表明:成渝地区政府竞争与土地资源错配呈现显著的“U”形变化特征,地区经济发展水平是这一影响的重要作用机制;在替换变量和剔除核心城市后,结论依然稳健;此外,由于政府竞争博弈行为的反复特征,土地资源错配程度存在动态循环的正向累积趋势。

成渝地区双城经济圈无偿献血志愿服务运营模式分析与改进

目的调研分析成渝地区双城经济圈无偿献血志愿服务队伍的建设及运营模式,提出改进策略,为优化献血志愿服务管理策略提供科学依据。方法研究选取了2024年1月—6月期间,重庆和成都各500名共1000名志愿者作为研究对象,采用问卷调查法收集数据。问卷内容包括基本信息和评分量表两部分,后者采用李克特量表对行为方式、主观意识、服务动机、生活幸福感及持续服务意向进行评分。数据通过SPSS 26.0进行统计分析,包括描述性统计、因子分析、线性回归分析以及模型拟合度评估。结果研究发现,年轻(如18~25岁)、高学历(如本科及以上)和高收入(如月收入8001元以上)群体在服务动机(得分分别为3.38,3.40,3.47,P<0.05)和生活幸福感(得分分别为3.53,3.57,3.63,P<0.05)上得分显著较高;成都志愿者在主观意识(得分3.59,P<0.01)、服务动机(得分3.35,P<0.01)和持续服务意向(得分3.57,P<0.05)上显著高于重庆志愿者(得分分别为3.51,3.28,3.39);线性回归分析显示,生活幸福感(偏回归系数=0.214,P<0.001)、服务动机(偏回归系数=0.200,P<0.001)、主观意识(偏回归系数=0.117,P=0.013)和行为方式(偏回归系数=0.130,P=0.019)对持续服务意向有显著正向影响;模型拟合度评估表明,模型的拟合度良好,卡方自由度比(χ^(2)/df)=1.844,GFI=0.933,RMSEA=0.006,CFI=0.919,NFI=0.958,NNFI=0.942,均满足拟合优度标准。结论本研究揭示了影响无偿献血志愿者行为及态度的关键因素,并发现成都和重庆地区在志愿服务方面的差异。建议通过增强社会责任感、优化招募与培训策略、提升服务动机和主观意识、关注生活幸福感、建立激励机制及加强区域合作等措施,促进成渝地区双城经济圈内无偿献血志愿服务队伍的高质量发展。

数字经济赋能成渝地区双城经济圈制造业高质量发展

基于2008—2020年成渝地区双城经济圈的城市数据,采用CRITIC-熵权法与TOPSIS相结合的方法测算数字经济发展水平和制造业高质量发展水平,考察数字经济对成渝地区双城经济圈制造业高质量发展的影响。研究表明:第一,数字经济能够显著推动成渝地区双城经济圈制造业高质量发展,该结论在经过一系列稳健性检验后依然成立。第二,数字经济对制造业高质量发展的推动效果在技术创新水平较高的地区表现得更为明显;此外,数字经济推动了流域地区制造业高质量发展,但现阶段并不利于非流域地区制造业的高质量发展。第三,数字经济显著提升了成渝地区双城经济圈制造业的创新能力和质量效益,但在促进制造业绿色发展和提升制造业产业基础能力方面并不明显。为此,应发挥成都、重庆双城辐射带动作用,促进成渝地区双城经济圈数字经济与制造业深度融合,增强成渝地区双城经济圈制造业区域协同发展力度,夯实成渝地区双城经济圈制造业高质量发展数字基础。

基于成渝中线隧道参数CR450高速动车组气密性阈值分布特征研究

以成渝中线隧道特征为研究背景,利用一维可压缩不等熵流动模型的广义黎曼变量特征线方法,研究了CR450高速动车组单列车通过隧道和两列车中央等速交会时,车内外压力波特征及隧道长度、速度、不同时间间隔内最大压力变化量对气密阈值影响特性。研究表明:最不利隧道内车外压力波动幅值最大,随着隧道长度增加,车内压力波动幅值增大;单列车满足车内每3 s内最大压力时时间常数阈值基本在最不利隧道内最大,交会时基于气密性的最不利隧道与根据车外压力载荷得到的最不利隧道长度不同;单列车时间常数阈值随速度的增加而增加,两列车以430 km/h和450 km/h交会时,时间常数阈值基本相同;单列车头尾车和中间车满足13个压力标准时时间常数阈值最大分别为51 s和42 s,交会分别为88 s和92 s。

成渝地区双城经济圈数字化要素对产业结构升级的空间效应

数字要素赋能已成为成渝地区双城经济圈产业升级的新途径,然而,目前缺乏对其在地理、经济和数字新型基础设施建设(以下简称“新基建”)等距离特征条件下数字化要素产生的空间效应的深入研究。为对成渝地区双城经济圈产业高质量发展在政策层面提供理论支持,从数字化创新环境、数字化创新技术、数字化人力资本、数字化劳动力、数字化资本等维度构建数字化要素评价体系,选取2012—2021年成渝地区双城经济圈的空间面板数据,基于地理、经济和数字新基建距离特征建立内生增长模型,运用空间计量模型实证分析成渝地区双城经济圈数字化要素和产业结构升级的关系。结果表明:成渝地区双城经济圈数字化要素和产业结构升级具有禀赋差异特征和时空集聚特征,且域间集聚差异在逐步扩大,3种距离特征下“成都+重庆”中心城市产业呈现出显著的生态化、集群化和丛林化特征,其他地区产业发展呈现出显著的专业化特征,对中心城市的空间依赖性越来越强。赋能产业结构升级方面,3种距离特征下,数字化要素对域内带来空间效应、对域外带来空间外溢效应,资源禀赋对域内具有空间促进作用、对域外具有空间抑制作用;在地理距离特征条件下,数字化技术创新对域外具有空间抑制作用;在数字新基建距离特征条件下,数字化人力资本具有空间抑制作用。此外,动态空间面板模型可以修正静态空间面板模型产生的过高空间估计误差。据此,建议加强成渝两极协同发展,形成两地产业的梯度化分工格局,实现成渝“双核”驱动相邻区域发展。

成渝地区双城经济圈数字创意产业设计人才的培养路径分析

随着国家工业设计质量提升牵引的质量强国的战略部署,先进制造业和现代服务业升级转型,成渝双城经济圈建设过程中数字产业发展不均衡、人才供给不足的问题逐渐显露。以成渝地区双城经济圈的数字创意产业生态差异为研究切入点,分析“产业-人才-教育-城市”互动的内在机理,提出基于产业需求的多元教学资源库建设路径思路,根据成渝地区数字产业特点差异,紧扣产业需求,构建“产教地政”相结合的特色人才模式,形成区域经济的人才供应链优势互补,为成渝地区高校、企业及政府之间展开协同育人活动,实现数字创意的设计人才培养资源共创共享合作提供参考方法。

基于复杂网络的成渝地区双城经济圈区域铁路网络时空演化研究

基于复杂网络理论,借助Space L空间方法,构建区域铁路网络拓扑结构模型,研究2000—2030年成渝地区双城经济圈区域铁路网络时空演化。将成渝区域铁路网络的演化划分为初步发展、快速发展、高等化完善化3个发展阶段,分析铁路网络整体结构特征与节点特征的演化,结果表明,成渝地区双城经济圈区域铁路网络空间格局分布存在差异性,成渝地区双城经济圈内部已演变形成以成都、重庆双核心为引领,以遂宁、南充、合川等城市为次核心的非均衡区域铁路网络;随着铁路站点与线路的增加,成渝地区双城经济圈区域铁路网络逐渐呈现小世界特性,核心-边缘的分异特征较为明显;第二阶段的网络化水平提升幅度高于第一阶段的网络化水平提升幅度,且区域边缘节点城市的中心性指标提升较大。

成渝地区双城经济圈区域协调发展的理论逻辑、实践创新与优化路径

成渝地区双城经济圈建设是深入贯彻党的区域协调发展战略、扎实推进中国式现代化的重要实践途径。成渝地区历经从经济区建设到城市群发展、再到双城经济圈构建的区域协调发展实践进程,基于对跨域治理需求的现实考量,通过调整府际关系、强化地方政府间合作、构建横向行政协调机制,以突破行政区划限制、促进区域资源优化配置、实现风险共担和利益共享,从而推动经济社会、生态环境等层面的均衡发展。新时代十年成渝地区双城经济圈在合作领域、协调机制、利益共享、政策执行方面创新制度体系,实践混合共力型的区域协调发展模式。但是未来在区域规划、利益格局、组织协同、资源配置上成渝地区双城经济圈建设仍面临诸多阻碍因素,需要从理念重塑、外部支持与内部保障三个维度进行路径优化。推动成渝地区双城经济圈建设向高质量阶段迈进意义重大,进一步从规划层面、执行层面、效能层面探索制度措施和协作策略,为形成各具特色、优势互补的区域发展新格局提供实践经验和路径借鉴。

气候变化对川渝地区再生稻产业的影响与建议——以富顺县为例

2022—2023年以田间调查、电话访谈、文献查阅和专家座谈等方式对川渝地区再生稻生产情况进行了调研,统计分析了气候变化下川渝再生稻种植区生产格局变化和发展趋势,以富顺县为例,剖析了川渝地区再生稻产业发展的潜力和面临的挑战,并就如何提升再生稻气候韧性提出5条建议。调研显示,在气候变暖情况下,川渝地区秋季热量资源更加丰富,再生稻种植呈现适生区、优生区面积不断增加、产量稳步提高等有利变化;但气象灾害呈重发趋势,再生稻生产气候风险增高。富顺县为再生稻种植优生区,具有自然条件、技术、品种、历史、品牌、需求和政策等优势。随着再生稻产业的迅猛发展和极端天气频发重发,提高应对气候变化能力、加强再生稻气候韧性建设,对加快推进川渝地区再生稻产业发展和品牌建设具有重要的现实意义。

以行政协同治理推动区域协同发展——成渝地区双城经济圈协同推进机关事务标准化工作范例

随着区域协同发展政策战略地位的不断提高,区域协同研究正如火如荼,但现阶段学界尚有待阐明区域协同瓶颈之因并提出解决之法及相应的区域协同新机制。本研究试图聚焦于此,在理论层面梳理区域协同瓶颈产生机制与区域协同新机制,并对成渝地区双城经济圈协同推进机关事务标准化工作进行案例分析与问卷调查,在实证层面检验本研究的两个理论框架。案例分析发现,以机关事务为例,成渝地区双城经济圈存在治理尺度差异,这与中央政策调控共同构成协同的内外动机,驱动成渝地区深化合作意愿,卷入区域协同;与此同时,地方保护主义现象在两地机关事务标准化协同工作中亦有所披露,并阻碍了成渝地区双城经济圈建设的协同发展。问卷调查数据进一步验证案例分析结果:推进协同地区加强行政治理协同、推进治理尺度统一具有紧要性,成渝地区双城经济圈建设推进标准化执行助推区域协同发展,标准化的行政治理协同增强了成渝地区双城经济圈协同互信意识,在一定程度上消解行政壁垒和地方保护主义;此外,当前成渝地区双城经济圈建设干部协同卷入的奖惩机制不完善,行政治理协同还需大力推进,两地协同仍有较强的地方本位意识。基于此,本研究认为,地方保护现象是长久以来中国实行区域分治所衍生的治理产物,消弭地方保护主义、强化区域一体化思维成为协同瓶颈破局之必然要求,而基于行政尺度视角出发的行政协同治理则可能通过为地区卷入协同建构与区域空间相适配的治理尺度,从而成为区域协同必然的路径选择。并且,协同是基于时间矢量上不断发展变换的过程,地方政府应当通过牢牢把握不同阶段中区域协同“动机—路径—目的”三核心元素以寻求合理的区域协同合作。

长江经济带上中游地区城市工业生态效率时空演变及驱动机制——以成渝经济圈和武汉都市圈为例

实现最优工业生态效率对促进工业绿色发展有着重要的现实意义。本文通过非期望产出的SBM模型,测度长江经济带上中游代表性地区成渝经济圈和武汉都市圈26个城市2010—2021年工业生态效率,通过Arcgis可视化工具对比分析其时空演变规律,并运用Tobit模型和地理探测器模型分别识别工业生态效率的驱动因素。结果表明:1)两个城市群工业生态效率整体均呈现波动上升态势,且与最优效率还存在一定的差距;2)城市群内部的地级市之间效率值存在少部分两极分化的现象;3)工业生态效率受科技研发投入、经济发展水平、交通可达性、对外开放水平等多个因素的影响,其中经济发展水平和交通可达性对于工业生态效率的提升起到较强的促进作用,对外开放程度与科技研发投入对于工业生态效率的促进作用还不明显,还需要进一步提高外商投资水平和增强科技研发投入质量以实现其对工业生态效率的正向影响。为此,通过强化城市群内外部的融合发展、构建协同创新网络和提升对外开放水平,以提高长江经济带上中游地区工业生态效率水平,促进地区高质量发展。