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Commuting behaviors response to living and working built environment: Dissecting interaction effects from varied supply and demand masses 通勤行为对生活和工作建筑环境的影响:剖析不同供需群体的互动效应
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-10-05 DOI: 10.1016/j.apgeog.2024.103430
De Tong , Yueer Dai , Yue Shen
Most developed megacities have experienced poly-centralization and suburbanization, leading to job-housing mismatches and negative outcomes such as increased commuting distances and frequencies. Recognizing the scarcity of structural analysis concerning the attractiveness of commuting's geographic endpoints, this study examines the diverse impact of the built environment at living and working locations on commuting flows, considering various supply-demand masses and distance levels. Utilizing a Gradient Boosting Decision Tree (GBDT) model, the study highlights the importance of job-housing ratio, POI diversity, and subway station proximity in employment locations, while informal area rates and subway proximity remain significant in residential locations. A three-dimensional analysis further indicates that achieving a perfect job-housing balance in megacities remains a dream, with each area presenting unique challenges requiring tailored solutions beyond a one-size-fits-all approach. Potential policies, such as planning large residential areas in the inner suburbs and upgrading convenient infrastructure in the outer suburbs, are proposed. Furthermore, with the uncovered distinct interaction effects of built environment on commuting behavior across various masses and distances, common perceptions related to mixed-use land and the role of informal settlement, are critically challenged. This extends our understanding of sustainable urban system design and provides references for planning policies.
大多数发达大城市都经历了多中心化和郊区化,导致了工作与住房的不匹配以及通勤距离和频率增加等负面结果。由于缺乏对通勤地理终点吸引力的结构性分析,本研究考虑到不同的供需质量和距离水平,研究了生活和工作地点的建筑环境对通勤流的不同影响。利用梯度提升决策树(GBDT)模型,研究强调了就业地点的职住比、POI 多样性和地铁站邻近性的重要性,而居住地点的非正规区域率和地铁站邻近性仍具有重要意义。三维分析进一步表明,在特大城市实现就业与住房的完美平衡仍然是一个梦想,每个地区都面临着独特的挑战,需要量身定制的解决方案,而不能采用一刀切的方法。我们提出了一些可行的政策,如在内郊规划大型居住区,在外郊升级便利的基础设施。此外,由于发现了建筑环境对不同质量和距离的通勤行为的独特互动效应,与混合用途土地和非正规居住区的作用有关的常见观念受到了严峻的挑战。这拓展了我们对可持续城市系统设计的理解,并为规划政策提供了参考。
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引用次数: 0
Identification and Spatial Characterization of suburban areas in Chengdu 成都郊区的识别与空间特征描述
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-10-05 DOI: 10.1016/j.apgeog.2024.103428
Lingli Mou , Heping Li , Yuxuan Rao
As transitional territories where urban and rural functions interpenetrate, suburban areas have multiple values such as recreation, ecology, agriculture and landscape. Promoting their benign development is the key to realizing global sustainable development of urban and rural areas. Planning control is based on precisely defining the spatial extent of suburban areas, and understanding suburban area differentiation and its driving forces scientifically is a key component in raising the bar for focused planning. However, there are currently few research on fine-scale quantitative identification of suburban regions because of their spatial complexity, ambiguous boundaries, and structural dynamic features. Based on this, this paper develops a multi-dimensional identification index system for suburban areas by using multi-source big data and remote sensing information technology, employs the random forest model and the K-Medoids clustering algorithm, identifies the distribution of suburban areas and their subdivided types, analyzes spatial differentiation characteristics, and conducts empirical research using Chengdu City as an example. The findings demonstrate that: (1) The majority of suburban areas in Chengdu City are concentrated in groups or belts surrounding the urban centers of various districts and counties, and the higher the functional class of a district or county, the denser the distribution of suburban areas. (2)The distribution pattern of suburban areas in Chengdu basically conforms to its planned urban hierarchy system.(3)Urban-oriented, suburban-interacted and rural-oriented suburban areas have their own characteristics in land use level, economic development and regional population characteristics.(4)Regional openness, government behavior, social development and geographical location are the core driving factors of spatial differentiation of suburban areas in Chengdu, and the interaction between urban and rural systems, the flow of social resources and the transformation of development models are the spatial mapping dimensions that affect its differentiation.(5)Chengdu can draw up detailed regulatory planning of suburban units to standardize and guide the overall development of suburban areas. In support of the global sustainable development goals, this study offers a methodology for precisely and impartially defining suburban areas, assisting in the implementation of integrated urban-rural development globally.
郊区作为城乡功能相互渗透的过渡地带,具有休闲、生态、农业、景观等多重价值。促进其良性发展是实现全球城乡可持续发展的关键。规划控制的基础是精确界定郊区的空间范围,科学认识郊区分异及其驱动力是提升重点规划水平的关键环节。然而,由于郊区的空间复杂性、边界模糊性和结构动态性等特点,目前对郊区的精细化定量识别研究较少。基于此,本文利用多源大数据和遥感信息技术,开发了郊区多维识别指标体系,采用随机森林模型和K-Medoids聚类算法,识别郊区分布及其细分类型,分析空间分异特征,并以成都市为例进行了实证研究。研究结果表明(1)成都市郊区大多集中在各区县中心城区周边的组团或带状区域,区县功能等级越高,郊区分布越密集。(2)成都市郊区的分布格局基本符合成都市规划的城市等级体系。 (3)城市型郊区、城郊互动型郊区和乡村型郊区在土地利用水平、经济发展水平和区域人口特征等方面各有特点。(4)区域开放度、政府行为、社会发展和地理区位是成都市郊区空间分异的核心驱动因素,城乡体系互动、社会资源流动和发展模式转变是影响郊区分异的空间图谱维度;(5)成都市可制定郊区单元的详细控规,规范和引导郊区的整体发展。为支持全球可持续发展目标,本研究提供了一种精确、公正地界定郊区的方法,有助于在全球范围内实施城乡一体化发展。
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引用次数: 0
The impact of the built environment on human mobility patterns during Covid-19: A study of New York City's Open Streets Program 建筑环境对科维德-19 期间人类流动模式的影响:对纽约市开放街道计划的研究
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-10-04 DOI: 10.1016/j.apgeog.2024.103429
Helena H. Rong , Lance Freeman
This study uses the Open Streets Program in New York City as a natural experiment to test the effects of change in street use on foot traffic changes during COVID-19. In a two-stage-least-squares (2SLS) design, the Open Streets Program is used as an instrumental variable to isolate the exogenous effect of expanded streets for pedestrians on foot traffic patterns. We then estimate a difference-in-differences model that compares the change in foot traffic to public points-of-interests (POI) in neighborhoods that are part of the Open Streets Program with those that are not “before and after” the start of the city-wide program, in addition to other controls such as street types and weather characteristics to help reduce the error variance of the regression. We find that the Open Streets Program helped increase pedestrian activity at a neighborhood level, even when controlling for street types and other confounding temporal factors such as precipitation and temperature.
本研究以纽约市的 "开放街道计划 "为自然实验,检验 COVID-19 期间街道使用变化对步行交通变化的影响。在两阶段最小二乘法(2SLS)设计中,"开放街道计划 "被用作一个工具变量,以隔离扩大行人街道对步行交通模式的外生影响。然后,我们估算了一个差分模型,比较了 "开放街道计划 "与 "全市范围计划 "启动 "前后 "未参与该计划的街区公共兴趣点(POI)的人流量变化,此外,我们还使用了其他控制因素,如街道类型和天气特征,以帮助减少回归的误差方差。我们发现,即使控制了街道类型以及降水和气温等其他时间因素,"开放街道计划 "仍有助于增加街区层面的行人活动。
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引用次数: 0
Drivers of local government borrowing in China: Fiscal hunger and competition game under asymmetric decentralization 中国地方政府举债的驱动因素:非对称分权下的财政饥饿与竞争博弈
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-10-04 DOI: 10.1016/j.apgeog.2024.103422
Yuanshuo Xu , Jiahe Liang , Yan Wu
This paper contributes two mechanisms through which asymmetric fiscal decentralization drives local government borrowing: ‘fiscal hunger’ (borrowing to address budgetary fiscal gaps, leverage land resources, and pay off existing loans) and ‘competition game’ (borrowing to compete for bond issuance and state funds). Analyzing a dataset of 290 Chinese cities from 2006 to 2015, we find local government borrowing is driven by both fiscal hunger and inter-city competition. Borrowing is not confined to the growth-oriented purpose. Our Geographically Weighted Panel Regression uncovers the spatial patterns of two borrowing mechanisms, in which borrowing in less-developed regions is predominantly driven by fiscal hunger, while developed coastal regions actively engage in inter-city competition through borrowing. These dynamics may aggravate fiscal disparities among Chinese cities.
本文介绍了非对称财政分权推动地方政府借贷的两种机制:财政饥渴"(为解决预算财政缺口、利用土地资源和偿还现有贷款而借贷)和 "竞争博弈"(为争夺债券发行和国家资金而借贷)。通过分析 2006 年至 2015 年中国 290 个城市的数据集,我们发现地方政府借贷是由财政饥渴和城市间竞争共同驱动的。借贷并不局限于以增长为导向的目的。我们的地理加权面板回归揭示了两种借贷机制的空间模式,其中欠发达地区的借贷主要由财政饥渴驱动,而沿海发达地区则通过借贷积极参与城市间竞争。这些动力可能会加剧中国城市间的财政差距。
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引用次数: 0
Understanding temporary residential mobility during urban renewal: Insights from a structured community survey and machine learning analysis 了解城市重建过程中的临时居住流动性:结构化社区调查和机器学习分析的启示
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-10-02 DOI: 10.1016/j.apgeog.2024.103425
Hao Chao , Minghui Xu , Scarlett T. Jin , Hui Kong
Existing studies on urban renewal have primarily focused on the final effects of urban redevelopment, while often overlooked the social costs incurred during the temporary displacement phase. This gap is significant, as many residents must vacate their homes for an average of 3–5 years during Shantytown redevelopment, which brings about challenges of renting houses and the associated negative impacts on their well-being before returning to their resettled homes. Therefore, this study focuses on examining the temporary residence arising during Shantytown redevelopment while awaiting resettlement. We selected Heze city as our case study area, which has been through China's most intensive redevelopment between 2016 and 2018 that affected about 1.2 million population. A structured community survey was conducted, and 1035 valid samples were collected. We then applied spatiotemporal analysis and the Random Forest model to examine stability, direction, and distance of temporary residence mobility, along with its influencing factors. Findings reveal that 92.4% of households move just once or twice during the temporary phase, indicating the preference for stable residence. Regarding moving direction, households seek life service centers rather than city centers, and prefer familiar community environments. Furthermore, 74.8% of households resettled within 2.5 km of their original residence, indicating a preference for nearby temporary housing. The built environment emerged as the most critical factor influencing the mobility, followed by family socioeconomic status, while housing costs, surprisingly, having the minimal impact. This study highlights the importance of considering the interim social costs in urban renewal projects and provides valuable insights for housing market regulation and urban planning to mitigate these effects.
现有的城市更新研究主要关注城市重建的最终影响,而往往忽视了临时迁移阶段所产生的社会成本。由于许多居民在棚户区重建期间必须腾空房屋平均达 3-5 年之久,这给他们在返回重新安置的房屋之前带来了租房的挑战和相关的负面影响,因此这一差距非常明显。因此,本研究重点考察棚户区改造期间居民在等待安置期间产生的临时居住问题。我们选择了菏泽市作为案例研究区,该市在 2016 年至 2018 年期间经历了中国最密集的棚户区改造,约 120 万人口受到影响。我们进行了结构化社区调查,收集了 1035 个有效样本。然后,我们运用时空分析和随机森林模型研究了暂住人口流动的稳定性、方向、距离及其影响因素。研究结果显示,92.4%的家庭在暂住阶段只搬迁一到两次,这表明他们更倾向于稳定的居住地。在迁移方向上,住户寻求生活服务中心而非城市中心,更喜欢熟悉的社区环境。此外,74.8% 的家庭在原居住地 2.5 公里范围内重新安置,这表明他们更喜欢就近的临时住所。建筑环境是影响流动性的最关键因素,其次是家庭社会经济地位,而住房成本的影响却出人意料地最小。这项研究强调了在城市改造项目中考虑临时社会成本的重要性,并为住房市场监管和城市规划提供了有价值的见解,以减轻这些影响。
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引用次数: 0
Place attachment and lived values in Western Australian communities 西澳大利亚社区的地方依恋和生活价值观
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-10-01 DOI: 10.1016/j.apgeog.2024.103424
A. Kelly , P. Tschakert , C. Lawrence , P. Horwitz , C. Bourgault , N. Ellis
Substantial research exists on attachments people have to places and the phenomena and objects they value. However, insights on how values vary between different locations and across demographics and how place attachment differs between rural and urban areas are more limited. These understandings are needed to design meaningful adaptation strategies for people and communities at risk from climate change. This study examines attachment to place and things people value in eight communities in Western Australia, using a survey with 403 participants. Results showed that residents across the rural communities shared similar values, but that the values of urban communities were differentiated socioeconomically. Contrary to our hypothesis, place attachment was not stronger among the rural compared to the urban sites. The findings point to the importance of incorporating place-based, lived values and needs, particularly from less affluent residents, into inclusive adaptation planning.
关于人们对地方的依恋以及他们所珍视的现象和物品,已有大量研究。然而,对于不同地点和不同人口的价值观有何差异,以及城乡地区对地方的依恋有何不同,这方面的研究却十分有限。要为面临气候变化风险的人们和社区设计有意义的适应战略,就必须了解这些情况。本研究通过对 403 名参与者进行调查,考察了西澳大利亚八个社区中人们对地方的依恋和重视程度。结果显示,农村社区的居民具有相似的价值观,但城市社区的价值观则因社会经济因素而有所不同。与我们的假设相反,与城市相比,农村居民对地方的依恋并不强烈。研究结果表明,将基于地方的生活价值观和需求(尤其是不太富裕的居民的需求)纳入包容性适应规划非常重要。
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引用次数: 0
Exploring China's food security evolution from a local perspective 从地方视角探索中国粮食安全的演变
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-09-26 DOI: 10.1016/j.apgeog.2024.103427
Xinyuan Liang , Xiaobin Jin , Yue Dou , Fei Meng , Yinkang Zhou
Local food self-sufficiency is a feasible path to make up for supply chain dependence caused by food system globalization. However, despite policies advocating food localization, China's current trends, such as the imbalance between food supply and nutritional demand and the mismatch between production space and consumption space, gradually restrict the sustainability of food security. This study analyzes China's local food security from 2000 to 2020 around the multi-dimensionality of supply, acquisition, and demand. Results show that regional differentiation of China's staple food self-sufficiency has become more significant. As a result, food supply capacity in rapidly urbanizing areas has weakened, and mountainous and underdeveloped areas are difficult to be self-sufficient. Fortunately, staple foods in China are highly accessible, and urban with a population of less than 50,000 have the best food transportation security. Overall, aging and scale management greatly affect China's food system, which currently can resist sudden natural disasters. In the future, decision-makers should focus on urban resources integration and rural land consolidation and realize sustainable food system transition by optimizing the local supply-demand structure through central planning based on popular science and healthy diet structure.
地方粮食自给自足是弥补粮食系统全球化造成的供应链依赖的可行路径。然而,尽管政策倡导粮食本土化,但中国当前粮食供给与营养需求失衡、生产空间与消费空间错配等趋势,逐渐制约了粮食安全的可持续性。本研究围绕供给、获取、需求等多维度,分析了 2000-2020 年中国地方粮食安全状况。结果表明,中国主粮自给率的区域分化更加显著。因此,快速城市化地区的粮食供给能力减弱,山区和欠发达地区难以实现自给自足。值得庆幸的是,中国主食的可获得性很高,人口在 5 万以下的城市粮食运输保障能力最强。总的来说,老龄化和规模化管理对中国的粮食系统影响很大,目前中国的粮食系统能够抵御突如其来的自然灾害。未来,决策者应注重城市资源整合和农村土地整理,以科普和健康饮食结构为基础,通过中央规划优化地方供需结构,实现粮食系统的可持续转型。
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引用次数: 0
Community park visits determined by the interactions between built environment attributes: An explainable machine learning method 建筑环境属性之间的相互作用决定了社区公园的访问量:可解释的机器学习方法
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-09-23 DOI: 10.1016/j.apgeog.2024.103423
Zuopeng Xiao , Chengbo Zhang , Yonglin Li , Yiyong Chen
Uncovering the association between built environment (BE) attributes and community park visits by considering potential nonlinear effects can inform more effective spatial policies. This study utilizes real-time population visitation big data to depict the spatial variances in community park visits in the case city of Shenzhen. An explainable machine learning method incorporating random forest and Shapley Additive exPlanations (SHAP) is applied to reveal the relative importance of BE attributes and to examine the nonlinear associations and interaction effects on park visits. The results confirm the decisive roles of park size and walking-based street connectivity on associating with visits, with threshold points at 2 hm2for park size and 0.3 for network warp. The revealed interaction between park size and surrounding BE attributes benefits defining the optimal scale by considering surrounding attributes of both attraction and demand factors. Based on the findings, we further discuss the possible patterns of threshold effects and interaction effects rooted in the examined nonlinearity. The findings guide policy makers in adopting smarter and more effective strategies to improve community park visits.
通过考虑潜在的非线性效应来揭示建筑环境(BE)属性与社区公园访问量之间的关联,可以为制定更有效的空间政策提供依据。本研究利用实时人口访问大数据来描述深圳社区公园访问量的空间差异。研究采用随机森林和 Shapley Additive exPlanations(SHAP)相结合的可解释机器学习方法来揭示 BE 属性的相对重要性,并检验公园访问量的非线性关联和交互效应。研究结果证实,公园面积和步行街的连通性对公园访问量具有决定性作用,公园面积的阈值为 2 hm2,网络翘曲的阈值为 0.3。所揭示的公园规模与周边 BE 属性之间的相互作用有利于通过考虑吸引力和需求因素的周边属性来确定最佳规模。根据研究结果,我们进一步讨论了所研究的非线性中可能存在的阈值效应和交互效应模式。研究结果将指导政策制定者采取更明智、更有效的策略来提高社区公园的访问量。
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引用次数: 0
Assessing spatial configuration of barrier-free facilities from the perspective of age-friendliness: A case Study of Beijing, China 从适老性角度评估无障碍设施的空间配置:中国北京案例研究
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-09-21 DOI: 10.1016/j.apgeog.2024.103426
Jian Liu , Zhongyu Lai , Bin Meng , Zijian Guo , Xintao Liu

Enhancing urban inclusivity is a crucial task for sustainable urban development. One key challenge is to create seamless and accessible urban space that caters to the mobility needs of people, especially the elderly. Addressing this pressing challenge requires a comprehensive overview of barrier-free facilities (BFFs) configuration within cities. In this study, we propose an integrated framework for assessing the BFFs in Beijing by leveraging open BFFs data and mobile phone data. The proposed framework encompasses considerations of spatial distribution, accessibility, and supply-demand patterns of BFFs. Our findings reveal the significant agglomeration and heterogeneity of BFFs in Beijing, as well as serious spatial and social inequalities. Furthermore, the supply-demand relationship of BBFs in Beijing is relatively good, with 77.8% of supply-demand balanced areas. Overall, our study provides a holistic understanding of the BFFs within Beijing, offering valuable insights for informed decision-making in inclusive city planning and development.

增强城市包容性是城市可持续发展的一项重要任务。其中一个关键挑战是创造无缝、无障碍的城市空间,满足人们尤其是老年人的行动需求。要应对这一紧迫挑战,需要对城市中的无障碍设施(BFFs)配置进行全面概述。在本研究中,我们利用开放的无障碍设施数据和手机数据,提出了评估北京无障碍设施的综合框架。该框架包括无障碍设施的空间分布、可达性和供需模式。我们的研究结果表明,北京的 "闺蜜圈 "具有明显的聚集性和异质性,同时还存在严重的空间和社会不平等现象。此外,北京商业零售设施的供需关系相对较好,供需平衡区域占 77.8%。总之,我们的研究提供了对北京市内生物多样性保护区的整体认识,为包容性城市规划和发展的明智决策提供了宝贵的见解。
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引用次数: 0
Optimizing the ecosystem service flow of grain provision across metacoupling systems will improve transmission efficiency 优化跨元耦合系统的粮食供给生态系统服务流将提高传输效率
IF 4 2区 地球科学 Q1 GEOGRAPHY Pub Date : 2024-09-19 DOI: 10.1016/j.apgeog.2024.103420
Guangji Fang , Xiao Sun , Hua Zheng , Peng Zhu , Wenbin Wu , Peng Yang , Huajun Tang

Ecosystem service (ES) flow can address mismatches between the supply and demand of ESs. Nevertheless, how to improve ES flow considering spatial flow information and interactions among different flow systems is a research gap. Taking the Beijing-Tianjin-Hebei (BTH) urban agglomeration region of China as an example, this study combined both system and network perspectives to analyze the ES flow of grain provision before and after optimization. Metacoupling system analysis was adopted to assess intra-regional and extra-regional flow. Linear programming was used to calculate the optimal distance cost flow solution with constraints. A network model was finally applied to build and analyze flow and transmission networks. In 2020, BTH participated in nearly 10% of the national flow, among which 57% was extra-regional flow. After optimization, the proportion of extra-regional flow decreased to 36%, all of which was inflow from the nearest provinces, while intra-regional flow increased by 35%. The optimized flow reduced distance costs by 143% and decreased network complexity. Core transmission nodes with both high degree and betweenness centrality played prominent connection roles in the process of flow. Strengthening regional connections and simultaneously effectively managing core transmission nodes are of great significance for improving flow efficiency and ensuring food provision.

生态系统服务流(ES)可以解决生态系统服务供需不匹配的问题。然而,考虑到空间流动信息和不同流动系统之间的相互作用,如何改善生态系统服务流动仍是一个研究空白。本研究以中国京津冀(BTH)城市群区域为例,结合系统和网络两个视角,分析了优化前后的粮食供应服务流。采用元耦合系统分析评估区域内和区域外流量。采用线性规划方法计算带约束条件的最优距离成本流量方案。最后应用网络模型来构建和分析流量和传输网络。2020 年,BTH 参与了全国近 10%的流量,其中 57%为区域外流量。优化后,区域外流量比例下降到 36%,全部来自最近的省份,而区域内流量增加了 35%。优化后的流量减少了 143% 的距离成本,降低了网络的复杂性。在流动过程中,度数中心性和间度中心性均较高的核心传输节点发挥了突出的连接作用。加强区域连接,同时有效管理核心传输节点,对于提高流动效率、保障粮食供应具有重要意义。
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引用次数: 0
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