Fuzhou City Research Articles

From service capacity to spatial equity: Accurately and comprehensively evaluating urban park green space distribution under multi-trips mode.

The health of city inhabitants is considerably impacted by the urban park green spaces (UPGS). Existing studies lack an assessment of the UPGS equity from different perspectives and are limited to poor accuracy. This study reviews the definition and determination methods of UPGS, as well as UPGS accessibility and spatial equity related studies. Then, a spatial equity evaluation system is established from the dimensions of equity in providing UPGS services and equity in supply and demand matching. This study extrapolates from micro to macro analysis using network big data and census data to pinpoint the population down to the building level in the main urban area of Fuzhou City, China. The network analysis method, improved Gaussian floating catchment area method, Gini coefficient, and Lorenz curve measurement help to evaluate UPGS service euquity, explore the similarities and differences of UPGS fairness under different travel modes. It also helps to understand the service relationship between UPGS service and population demand under objective space, and to pinpoint the weak supply area using the locational entropy method. The results show that: (1) The overall accessibility and per capita accessibility show similar spatial distribution patterns under different travel modes, which are "high around and low in the middle" and "centered on the Minjiang River and dispersed to the north and south, respectively" in study area. (2) The supply of UPGS services in Fuzhou is relatively adequate and at a relatively equity level, while varies in the allocation of UPGS services among sub-districts. The spatial equity of different traveling modes varies widely. (3) The sub-districts on the periphery of the study area should be subject to increased UPGS and improvements to the road network and public infrastructure. Sub-district with high population density and old neighborhoods should implement micro-renewal and build community parks. Our study presents a new idea for spatial equity research.

Spatio-temporal Evolution Characteristics and Driving Forces of Winter Urban Heat Island: A Case Study of Rapid Urbanization Area of Fuzhou City, China

Spatio-temporal Evolution Characteristics and Driving Forces of Winter Urban Heat Island: A Case Study of Rapid Urbanization Area of Fuzhou City, China

Emergency evacuation of urban underground commercial street based on BIM approach

Urbanization has led to increased construction of underground buildings to overcome limited surface space. However, safety concerns in urban underground commercial buildings have become a major issue due to frequent accidents. Ensuring safe evacuation in densely populated underground commercial buildings is crucial. This study focuses on the safe evacuation of an urban underground commercial street A in Fuzhou City. A simulation framework based on Building Information Modelling (BIM) is proposed, integrating the Fire Dynamic Simulator (FDS) and BIM. The framework overcomes limitations in fire dynamic simulators. Using a BIM model, the study analyzes the risk of each fire protection area and selects the most unfavorable area for simulation. PyroSim technology is employed to study the entire fire development process in the underground commercial street under three different fire scenarios. The analysis includes evacuation stair travel time and personnel available safe evacuation time (TASET). By comparing the results, the study optimizes building layout design and identifies factors affecting personnel evacuation efficiency. The simulation outcomes aim to minimize casualties and property losses, contributing to fire safety management in urban underground commercial streets.

Construction of a cold island network for the urban heat island effect mitigation

The urban heat island (UHI) effect seriously challenges sustainable urban development strategies and livability. Numerous studies have explored the UHI problem from the perspective of isolated blue and green patches, ignoring the overall function of cold island networks. This study aims to explore the construction method of cold island network by integrating scattered cold island resources, rationally guiding urban planning and construction, and providing effective ideas and methods for improving the urban thermal environment. Taking the central city of Fuzhou as an example, the identification of the cold island core source (CICS) was optimized by applying relative land surface temperature (LST), morphological spatial pattern analysis, and landscape connectivity analysis. The combined resistance surface was constructed based on a spatial principal component analysis. Subsequently, the cold island network was constructed by applying circuit theory and identifying the key nodes. The results showed that the central and eastern parts of the study area experienced the most significant UHI effects and there was a tendency for them to cluster. Overall, 48 core sources, 104 corridors, 89 cooling nodes, and 34 heating nodes were identified. The average LST of the CICSs was 28.43 °C, significantly lower than the average LST of the entire study area (31.50 °C), and the 104 cold corridors were classified into three categories according to their importance. Different targeting measures should be adopted for the cooling and heating nodes to maintain the stability of the cold island network and prevent the formation of a heat network. Finally, we suggest a model for urban cold island network construction and explore methods for mitigating issues with UHI to achieve proactive and organized adaptation and mitigation of thermal environmental risks in urban areas, as well as to encourage sustainable urban development.

A Study on the Spatiotemporal Aggregation and Corridor Distribution Characteristics of Cultural Heritage: The Case of Fuzhou, China

Fuzhou is an important city on the southeast coast of China with rich cultural heritage resources, and it is a national historical and cultural city in China. The main purposes of this study are the following: 1. To study the current situation and spatial distribution of cultural heritage; 2. To study the construction of cultural heritage corridors; 3. To utilize the holistic characteristics of heritage corridors to integrate the cultural heritage elements along the corridors and achieve the optimal allocation of resources. This study collects data from 605 cultural heritage sites in Fuzhou City and establishes a GIS database. The spatial distribution characteristics of cultural heritage in Fuzhou City are studied using aggregation analysis, nearest neighbor analysis, and buffer analysis in GIS technology. The following results were obtained: there is a cultural heritage corridor in Fuzhou City with the Minjiang River serving as the main land and water transportation line, and the closer one is to the water transportation line, the more intensive the distribution of cultural heritage points; and there are three cultural heritage node areas and one special cultural heritage node area. The study of Fuzhou’s heritage corridor system has important reference significance for the protection of cultural heritage in coastal historical cities in China and even in East Asia and has exploratory value for the holistic protection of cultural heritage and for the planning and development of tourism.

Research on the Spatiotemporal Characteristics of Block Vitality based on LBS Data and the Impact Mechanisms of the Built Environment -Taking the Third Ring Road in Fuzhou City as an example

Using location-based services (LBS) data from the third ring area in Fuzhou city, this study analyzes the spatiotemporal characteristics of block vitality by measuring the density of active population gatherings. It explores the spatiotemporal heterogeneity of block vitality based on a geographically and temporally weighted autoregressive model (GTWAR), considering built environment features such as POI density, functional mix, and road network density. Additionally, it investigates their interactions using a geographic detector and compares differences between weekdays and weekends across five daily periods. Key findings include:(1) The overall urban vitality in the region exhibits a spatial pattern of “one core, two centers, multiple sub-centers, and multiple clusters” and undergoes spatiotemporal dynamic changes across five periods, characterized by ‘dispersion, agglomeration, deep agglomeration, and dispersion.” (2) The marginal effects of POI density, functional mix, and road network density on block vitality exhibit instability in both spatial and temporal dimensions.(3)Interaction effects between two factors exert a more significant impact on block vitality than the effects of individual factors, with interaction types including dual-factor enhancement and nonlinear enhancement.(4)Differences exist in the spatiotemporal characteristics of block vitality, built environment influences, and their interactions between weekdays and weekends.

Comparison Of Wind Environment Adaptation and Street SpaceIn Traditional Coastal Villages—— A Case Study Of Typical Coastal Villages In Fuzhou City

At present, most of the existing research on traditional dwellings focuses on their preservation and reuse, while their environmental adaptability is relatively underexplored. Especially in coastal areas, understanding and enhancing the environmental adaptability of buildings is crucial to guarding against natural disasters, protecting the ecological environment, maintaining socio-economic stability, and coping with climate change, all of which are key factors in achieving sustainable development. In this paper, two traditional villages in Fuzhou (Dinghai Village and Houguan Village), which have similar geographic environments but different types, are selected as examples to explore the adaptability of village street layouts and spatial patterns with different degrees of integration to coastal wind environments by analyzing and comparing them through CFD simulations.The study summarizes the conclusions through the horizontal comparative analysis: 1. the degree of spatial integration of the central street and the wind resistance of the village are positively proportional 2. the layout with high connectivity value and strong permeability of the space is conducive to the improvement of the village's wind environment adaptability. By comparing different village patterns, the article refines the spatial characteristics of streets and alleys for the wind adaptability of coastal traditional villages, with a view to providing certain technical support and theoretical basis for the protection and renewal of traditional villages in China, as well as for the strategic planning in terms of sustainable development.

Research on Environmental Safety Evaluation of Urban Parks Based on Analytic Hierarchy Process: A Case Study of Four Urban Parks in Fuzhou City

In this study, Analytic Hierarchy Process was used to construct the environmental safety evaluation level of physical spatial layout, social environment guidance and security technical means as the evaluation criteria. In addition, using the complete evaluation index system constructed after the weight value is given, the environmental safety of the four research object urban parks in Fuzhou city is evaluated, and the comprehensive evaluation grade is divided. The results show that: 1) The each evaluation index in the criterion layer is ranked from high to low as physical spatial layout (0.4097), security technical means (0.3244), social environment guidance (0.2659); 2) In the factor layer, the top 5 places in the overall weight value order of the evaluation index factors are CCTV monitoring (0.1040), organization of social activities (0.0840), lighting (0.0827), plant furnishing (0.0806), mixed crowd (0.0743); 3) In terms of environmental safety construction of the four research object urban parks in Fuzhou city, the comprehensive evaluation results are that Wenquan park is in Grade I (Very Good), Xihu Park and Chating Park are in Grade Ⅱ (Good), and Wangzhuang Nanhu Park is in Grade III (Average).

How Do Urban Waterfront Landscape Characteristics Influence People’s Emotional Benefits? Mediating Effects of Water-Friendly Environmental Preferences

Landscapes in urban waterfront spaces are of high societal value as they can meet people’s physical, psychological, and social needs for health and well-being, but the relationship between waterfront landscape features and public health benefits has yet to be clarified. From the perspective of blue health, this paper takes blue spaces along the Min River of Fuzhou City as the research object. It constructs the mediation model of “Waterfront landscape characteristic (WLC)→Water-friendly environmental preference (WEP)→Emotional benefit (EB)”. The role of WEP in the mechanisms linking WLC and EB in different waterfront spaces was explored through the quantification of indicators, questionnaires, and physiological measurements. The main results showed that (1) the ability of different types of waterfront spaces to arouse positive emotions in the population is characterized by blue-dominated space > co-dominated space > green-dominated space, while the opposite is true in terms of inducing negative emotions; (2) green visibility, blue visibility, naturalness, water-friendliness, and openness are all significantly related to EBs and could affect positive emotions either directly or mediated by WEPs, but openness seems not to affect negative emotions through WEPs; (3) cleanliness affects the population’s WEP for the coherence dimension, but has no significant role in improving EBs. This study could expand new ideas for research in habitat health, provide a reference for embodied evidence-based waterfront landscape design, and help promote the construction and development of healthy cities.

Research and Analysis of Modern Consulate Complexes --Taking Yantai Hill in Fuzhou City as an Example

Since the First Opium War, foreign forces have flooded into China, building a great variety of public buildings across China, and importing Western culture. As one of the representatives of the recent Western culture, the consulate building plays an important role in history. As the political, economic, and cultural center of Fujian Province, Fujian was introduced to many Western cultures as one of the five port cities after the signing of the Treaty of Nanjing. Foreigners set up all kinds of buildings and municipal facilities here, such as consulate buildings, customs, foreign firms, churches, hospitals, workshops, clubs, etc. Western architectural techniques and forms have collided and fused with the traditional architectural culture of Fuzhou, together constituting a diverse modern architectural history of Fuzhou. Taking the modern consulate building complex in Yantai Mountain of Fuzhou City as an example, through field research and literature arrangement and induction, we analyze the buildings of modern consulates, understand the historical evolution of consulate buildings in Fuzhou, the architectural form and the existing situation, excavate their characteristics and summarize them, to provide basic information for the study of modern architectural history in Fuzhou. The article concluded that the Western consulate architecture is characterized by the central axis symmetry, the characteristics of each country are obvious, while retaining part of the local characteristics, to achieve the fusion of Chinese and foreign.

Analysis of spatial variation of street landscape greening and influencing factors: an example from Fuzhou city, China

Urban street greening is an important part of urban green infrastructure, and Green View Index (GVI) is widely used to assess urban street quality and ecosystem service value as an important indicator to quantify the perception of green street landscape from a pedestrian perspective. However, the distribution of street greenery is imbalanced. Therefore, to explore the differences in street greening levels within urban cities, we crawled streetscape data using the Internet to assess the spatial distribution patterns of urban street GVI using deep learning and spatial autocorrelation, and combined 11 surrounding environmental features with multi-source geographic data to further analyze the key factors influencing the spatial variation of block GVI using ordinary least squares, geographically weighted regression (GWR) models, and multi-scale geographically weighted regression (MGWR) models. The results show that the mean value of GVI in Fuzhou city is low (23.08%), with large differences among neighborhoods and a significant spatial autocorrelation. Among the regression models, MGWR has the best fit with an R2 of 0.702, where the variables of NDVI, house price, accessibility of water bodies and parks, and the proportion of built-up land have a greater impact on GVI, and the factors do not have the same spatial effect size. The results can provide a scientific basis for promoting green visual equity in different blocks.

Real-time model predictive control of urban drainage system in coastal areas

In the context of global climate change and urbanization, model predictive control (MPC) has been increasingly applied in the field of real-time control of urban drainage systems to cope with frequent urban flooding events caused by extreme rainstorms. However, the computation time of the predictive model calculation greatly hinders further development of MPC in this field. In this study, we propose two surrogate models, namely the water tank-water balance model 1 (TWBM1) and the water tank-water balance model 2 (TWBM2), to replace the storm water management model (SWMM) as the prediction model for MPC, thus improving MPC computational efficiency. Both surrogate models can obtain the total outflow process at the downstream outfall of the study area and the corresponding overflow process. In comparison with TWBM1, TWBM2 requires 26 % fewer calibration parameters, and its structure is simpler. These results have been verified in the real-time optimal scheduling of a rainwater drainage system in the Doumen area of Fuzhou City, China. The results show that TWBM1 and TWBM2 have shorter computation time compared to SWMM, which improves the efficiency of MPC computation. Additionally, in comparison with the existing scheduling results, MPC has better performance in terms of economy, security and computational efficiency.

Construction and Optimisation of Ecological Networks in High-Density Central Urban Areas: The Case of Fuzhou City, China

Constructing and optimising ecological networks in high-density cities plays an important role in mitigating urban ecological problems. Our study uses comprehensive evaluation methods such as Morphological Spatial Pattern Analysis (MSPA), the Remote Sensing Ecological Index (RSEI), and Connectivity to identify ecological source areas in Fuzhou City, and constructs and optimises the network using the Minimum Cumulative Resistance (MCR) model, current theory, and other methods. Meanwhile, the changes in urban landscape connectivity under different development scenarios were explored. The results show that the following: (1) the identification of ecological source sites based on the integrated approach is better than the single MSPA method; (2) the ecological network of Fuzhou City consists of 44 ecological source sites and 92 corridors; and (3) among the various development modes, transforming the top 30% of the bare land patches in Fuzhou City into green spaces improves the overall connectivity of the ecological network the most. The results can provide auxiliary decision-making for ecological construction in high-density cities.

Exploring the spatiotemporal relationship between green infrastructure and urban heat island under multi‐source remote sensing imagery: A case study of Fuzhou City

AbstractGreen Infrastructure (GI) has garnered increasing attention from various regions due to its potential to mitigate urban heat island (UHI), which has been exacerbated by global climate change. This study focuses on the central area of Fuzhou city, one of the “furnace” cities, and aims to explore the correlation between the GI pattern and land surface temperature (LST) in the spring and autumn seasons. The research adopts a multiscale approach, starting from the urban scale and using urban geographic spatial characteristics, multispectral remote sensing data, and morphological spatial pattern analysis (MSPA). Significant MSPA elements were tested and combined with LST to conduct a geographic weighted regression (GWR) experiment. The findings reveal that the UHI in the central area of Fuzhou city has a spatial characteristic of “high temperature in the middle and low temperature around,” which is coupled with a “central scattered and peripheral concentrated” distribution of GI. This suggests that remote sensing data can effectively be utilised for UHI inversion. Additionally, the study finds that the complexity of GI, whether from the perspective of the overall GI pattern or the classification study based on the proportion of the core area, has an impact on the alleviation of UHI in both seasons. In conclusion, this study underscores the importance of a reasonable layout of urban green infrastructure for mitigating UHI.

Analysis of the Effect of Shared Finance Implementation in Yonghui Supermarket

Some of the retail enterprises in China are still in the traditional business model, and their financial model will not match the scale of operation and financial control ability with the development of the enterprise. Nowadays, the integration of the world economy is developing deeply, and the business between enterprises is complicated, so it is imperative to strengthen the overall control of enterprise finance. There is no doubt about the influence of the shared finance model on the control of corporate financial processes and capital management. Yonghui Supermarket is a large-scale private joint-stock enterprise group cultivated in Fujian Province to promote the transformation of traditional farmers' market to modern distribution mode. Yonghui Supermarket is one of the top 500 enterprises in China and has been honored as a "Famous Trademark of China". Founded in 2001, Yonghui Supermarket is located in Fuzhou City, Fujian Province. Yonghui is one of the first companies in China to introduce fresh agricultural products into modern supermarkets. Yonghui Supermarket Co., Ltd. is a supermarket model that combines community chain stores, specialty stores, and supermarkets as its core business, supplemented by convenience store franchising, and combines food processing and modern agriculture. This case takes Yonghui Supermarket as the research object to explore the shared finance model of retail enterprises and its effects.

Deformation analysis and protection measures of existing metro tunnels effected by river channel excavation in soft soils

The excavation of river channel in soft soils has an inevitable influence on adjacent metro tunnels. This paper investigates the effect of river channel excavation on the underlying metro tunnels and corresponding protective measures based on an engineering project in Fuzhou city, China. A three-dimensional finite element model is developed to calculate the vertical and horizontal displacements and diametrical distortion of tunnels under different excavation sequences and soil reinforcement measures. Real-time monitoring of the vertical and horizontal displacements and diametrical distortion of tunnels is carried out and analyzed in detail. The results show that the vertical displacements and diametrical distortion of tunnels are primarily caused by the excavation of the river directly above the tunnels, while the horizontal displacements are induced by the excavation of the river next to the tunnels. A combination of cement slurry with a portal form and concrete with a plate form is recommended to reinforce the bottom soil of rivers and protect the operational tunnels. The accuracy of the calculation model and the effectiveness of the protection measure are confirmed by using on-site measurements. The findings can provide useful reference for the safety assessment and protection measures of similar projects.

Responses of bird communities to riparian park habitat factors: a case study in a highly urbanized area of Fuzhou city, China

Responses of bird communities to riparian park habitat factors: a case study in a highly urbanized area of Fuzhou city, China

What are the differences in urban citizens’ preferences for the colour of condominium building facades?

The colour of a building facade is an important attribute that significantly influences consumers’ purchasing intentions towards commodity buildings. This influence is often reflected in transaction prices, allowing researchers to extract consumers’ colour preferences and analyse their psychological states. However, there is a significant lack of relevant research in this area. Therefore, this research is the first attempt to explore urban consumers’ preferences for the colour of building facades using a housing price measurement system. It also conducts comparative analyses of the consumption psychology of different homebuying consumer groups. The innovative approach in this research can serve as a reference for exploring similar issues in other regions worldwide, and the empirical results of this research hold important professional value for fields such as social psychology and urban planning. Specifically, this research takes the city of Fuzhou, China, as an example, and it uses cross-sectional transaction data from second-hand residential communities in 2020 as its research reference. Through economic and geographical research methods, this study explores consumers’ preference for colour among various consumer groups. The research reveals that the overall homebuying consumer groups in Fuzhou have specific preferences for the quantity and characteristics of facade colours. Furthermore, consumer preferences vary among different income levels and geographic locations of homebuying consumer groups. Finally, the research estimates the possible reasons for these preference differences.

The response of ecological security to land use change in east and west subtropical China.

Regional land use change and ecological security have received considerable attention in recent years. The rapid economic development of Kunming and Fuzhou has resulted in environmental damage such as water pollution and urban heat island effect. It is thus important to conduct a comparative analysis of the ecological security response to land use/land cover change (LUCC) in different natural zones. Using the Google Earth Engine (GEE) platform, random forest and support vector machine methods were used to classify land cover types in the study area, after which the ArcGIS platform was used to analyze LUCC. The driving force-pressure-state-impact-response (DPSIR) model and entropy weight method were used to construct an ecological security evaluation system, and gray correlation was used to compare the ecological security responses to LUCC in Kunming and Fuzhou. The findings revealed that: (1) The average dynamic degrees of comprehensive land use in Kunming and Fuzhou from 1995 to 2020 were 1.05% and 0.55%, respectively; (2) From 1995 to 2020, the ecological security index values for Kunming and Fuzhou increased from 0.42 to 0.52 and from 0.36 to 0.68, respectively, indicating that Fuzhou's index is rising more rapidly; and (3)There is a strong correlation between LUCC and ecological security, the correlation between the woodland and the ecological security index is very strong in both places. The expansion of construction land may be an important reason for the reduced ecological security level in Fuzhou City, while water resources have a significant impact on the ecological security level of Kunming City.

Quantifying the spatial quality of urban streets with open street view images: A case study of the main urban area of Fuzhou

With the advancement of global urbanization, urban streetscapes have become a critical part of urban public spaces. As one of the important ways to enhance the living environment, relevant government departments have accelerated the construction of urban streetscapes; however, certain issues, such as emphasis on surface and light protection, still persist. The visual effects of street landscapes hardly meet people's daily and spiritual needs. Therefore, assessing the quality of urban streetscapes has scientific and practical significance for improving urban planning and construction and creating a new intelligent and green city. In this study, the spatial distribution of vehicle interference index, spatial feasibility index, road area index, green visual index, sky visibility index, spatial enclosure index, color richness index, and visual entropy evaluation indices were drawn from the framework of combining deep learning and machine learning to quantify the spatial quality of urban streets by integrating a large number of streetscape images. The spatial quality of street landscape was evaluated according to the ELO scoring mechanism and random forest method, taking the main urban area of Fuzhou City as an example. The results showed that the overall street landscape quality of Fuzhou City was high, and the spatial distribution showed a pattern of concentrated high values in the center and dispersed high values in the periphery. Therefore, based on quantifying the spatial quality of urban streets, strategies, such as the pavement layout of pedestrian and vehicular paths, control of the continuity and permeability of visual landscape elements, and plant color matching, should be regulated. The method proposed in this study can provide novel insights for urban builders to improve the construction of cities.