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This research addresses the urgent challenges posed by rapid urbanization and climate change through an integrated interdisciplinary approach combining advanced technologies with rigorous scientific exploration. The comprehensive analysis focused on Wuhan, China, spanning decades of meteorological and land-use data to trace extreme urbanization trajectories and reveal intricate temporal and spatial patterns. Employing the innovative 360° radial Fibonacci geometric growth framework, the study facilitated a meticulous dissection of urban morphology at granular scales, establishing a model that combined fixed and mobile observational techniques to uncover climatic shifts and spatial transformations. Geographic information systems and computational fluid dynamics were pivotal tools used to explore the intricate interplay between urban structures and their environments. These analyses elucidated the nuanced impact of diverse morphosectors on local conditions. Furthermore, genetic algorithms were harnessed to distill meaningful relationships from the extensive data collected, optimizing spatial arrangements to enhance urban resilience and sustainability. This pioneering interdisciplinary approach not only illuminates the complex dynamics of urban ecosystems but also offers transformative insights for designing smarter, more adaptable cities. The findings underscore the critical role of green spaces in mitigating urban heat island effects. This highlights the imperative for sustainable urban planning to address the multifaceted challenges of the 21st century, promoting long-term environmental sustainability and urban health, particularly in the context of tomorrow’s climate-adaptive smart cities.

This research offers valuable perspectives on the nexus between urbanization and the smart environment within the Najran city, Saudi Arabian context. Najran City, with its diverse districts and evolving urban landscape, is at the forefront of adopting advanced technologies and participatory governance models to create a resilient, environmentally conscious, and sustainable urban environment, likewise positioning itself as a model of smart urban development but is also fostering an innovation-driven community equipped to address the difficulties and exploit the prospects given by the 21st century. The study systematically analyzes the multifaceted factors of smart city variables in Saudi Arabia and their direct impact on urban sustainability through extensive quantitative investigations. This study reveals the positive correlations between smart city attributes, on the attainment of urban sustainability. In order words, the smart city’s attributes such as IoT (Internet of Things) devices, smart infrastructure, and data-driven solutions are linked to the creation of a resilient urban environment in the face of urbanization and sustainability challenges. On the other hand, the study noted that the integration of smart technologies might lead to unintended consequences in urban planning. For example, an overemphasis on technology may overshadow human-centric approaches, which might potentially affect the community well-being and social cohesion. Study’s insights provide policymakers, urban planners, and players with an in-depth knowledge of the pathways to harness smart city attributes for sustainable Najran urban development. The implications of this research extend beyond the borders of Saudi Arabia, serving as a valuable reference for regions worldwide grappling with similar urbanization and sustainability challenges in the 21st century. By harnessing the potential of smart cities, Saudi Arabia and other nations can pave the way for greener, more resilient urban futures.

An extensive examination of urban energy system optimization in rapidly urbanizing countries An extensive examination of urban energy system optimization in rapidly urbanizing countries like China fills a research gap. This paper addresses a research need by creating a comprehensive model of urban energy subsystem interdependencies and dynamics. Research simulates and optimizes energy systems using software such as EnergyPLAN, HOMER, and TRNSYS. Sustainable urban energy systems optimize energy transmission nodes, model multi-zone energy systems, and integrate regional models. Urban energy systems are modelled using national energy statistics, literature surveys, and 10-year-old simulation models. Joint power grid-heating network simulations, energy transmission node optimization, and heating network integration with energy storage and conversion nodes are included. The findings illuminate urban energy dynamics, including how energy infrastructure impacts system efficiency, renewable energy integration, and demand-side management. Optimization improves energy efficiency, system resilience, and profitability. Moreover, this study theoretically understands complicated urban energy system dynamics to promote sustainable urban development and energy transition debates. The findings can help policymakers, urban planners, and energy stakeholders optimize urban energy systems and promote sustainable development. The study's theoretical implications go beyond Chinese urban energy efficiency to sustainable urban development and energy transition. Practical implications indicate that integrated energy planning and management informs urban policy and decision-making worldwide.

A growing body of literature discusses food insecurity in rural and urban contexts in Sub-Saharan Africa (SSA). Peri-urban food insecurity and coping strategies remain an understudied topic. To fill this gap, household cross-sectional survey data was collected from randomly selected 300 farm households in the peri-urban area of Jimma City and complemented with key informant interviews (KIIs) and focus group discussions (FGDs) to assess their food insecurity status and coping strategies in the face of rapid urbanization. A structured questionnaire was used to collect quantitative data from farm households while an unstructured questionnaire was used to gather qualitative data from key informants. Twelve indicators involving the four food insecurity dimensions were identified to develop a food insecurity index and categorize households into four food insecurity levels. The Principal Component Analysis (PCA) is employed to determine the most important indicators of household food insecurity. The ordered probit regression model was employed to ascertain significant factors affecting farming household food insecurity. The results revealed that 46% of peri-urban farm households were food-insecure at various levels. The household food insecurity status varied with their level of human capital, physical endowments, risk aversion behaviour, and institutional barriers. The expansion of built-up areas and marketable crops, particularly eucalyptus trees have greatly affected the food security status of peri-urban farm households. Income diversification, farming diversification, social ties, and farming specialization were the main food insecurity coping strategies of peri-urban farm households. The findings of this study highlighted insights into the urban expansion of medium-sized cities and agricultural land loss, marginalization of staple food crops, and market food prices increase, which resulted in increased vulnerability to food insecurity and poverty among farm households in peri-urban areas. The recommendations drawn from these findings are formulating strategies that preserve agricultural land-use and promoting food insecurity mitigation programs that capitalize on the coping strategies of households in peri-urban areas in the face of rapid urbanization.

During the rapid urbanization phase, the trade-off between ecosystem services is the most severe and also the most effective stage to implement ecological management. Exploring the natural—social driving mechanisms for trade-offs contributes to the coordinated development of the social economy and nature. Taking the typical mountainous city (Yibin) that is currently in the rapid urbanization phase and ecologically fragile as an example, utilizing a combination of difference comparison, trade-off–synergy index (TSI), optimal-parameter-based geographical detector model (OPGD), and multi-scale geographically weighted regression (MGWR), we spatially assess the nature and intensity of ES relationships and explore its social–natural driving mechanisms. Our findings reveal the following: (1) Varied geospatial patterns of four ESs—habitat quality (HQ), carbon storage (CS), soil conservation (SC), and water yield (WY)—with the greatest fluctuations in WY. (2) Significant changes in the nature and intensity of ES relationships over time, showing predominant positive synergies between WY-HQ, WY-SC, and HQ-CS, and negative synergies between HQ and SC, and trade-offs between WY-CS and SC-CS. (3) Distinct, time-varying driving factors for different ES relationships: climate and topography for WY, vegetation and topography for CS, topography and economic factors for HQ, and climate and topography for SC. Rapid urbanization has diminished the role of natural factors. (4) The regression coefficients reveal the local mechanisms of various driving factors, based on which targeted recommendations can be proposed. For instance, the establishment of interconnected small wetlands and green spaces in urban areas contributes to the enhancement of multiple ESs. The purpose of this study is to provide scientific insights into the driving mechanisms and optimizations of the key ecosystem services’ relationships in areas that are currently undergoing rapid urbanization.

ABSTRACTAs Africa is rapidly urbanizing, there is perhaps no other urban policy area more pressing than the elimination of slums along with the development of equitable access to affordable housing for low-income residents, which requires immediate attention. Ethiopia has taken on this challenge through its Integrated Housing Development Program (IHDP), a policy that incorporates slum clearance and resettlement through a government-led development of condominium housing targeting those displaced and other low- and middle-income households. However, construction of most condominiums has taken place at large-scale conglomerations on periphery of the city considered peri-urban. These sites are far from the city center where slum clearance took place and where most social and economic activity continue to be concentrated. Utilizing a survey instrument, this study examines the mediating effect of IHDP residents’ perception of access to public, urban facilities, and transportation condition, two dimensions of spatial equity. The analysis found that those living at peri-urban IHDP sites perceive lower levels of spatial equity compared to urban IHDP condominium residents. Moreover, peri-urban residents’ perception of spatial equity is a statistically significant mediating factor on the relationship between their location and lower levels of overall satisfaction living at their IHDP condominiums.

BackgroundEqualization of medical services is fundamental to the development of people-centered urbanization in Chinese-style modernization. In the past few decades, the achievements of the Chinese economy have remarkably increased the quantity and quality of healthcare services. Under rapid urbanization, large-scale population floating has led to a mismatch between supply and demand for healthcare services and raised the tension between spatial demographic reorganization and the relative stability of public healthcare service facilities. The current studies of healthcare spatial deprivation (HSD) mainly are focus on either supply, or demand, or accessibility based on census data. Therefore, it is necessary to build a multiple index that could give a physical result by using ordinary indices and mixing them together by relative methods to overcome this problem.MeasureWe chose Ningbo city, Zhejiang province, located in the eastern coastal region of China, as the study area. Moreover, from 2000 to 2020, the urbanization rate of Ningbo rapidly increased from 55.75 to 78.0%. In order to show the HSD in a rapidly urbanizing city, we first consider the subdistrict as the scale, innovatively absolve the medical accessibility to the IRD (Index of Relative Disadvantage), and construct the Index of Healthcare Relative Spatial Deprivation (IHRSD) framework. Based on the seventh national census data, we apply an IHRSD with Entropy Weight Method, 2SFCA (Two-step Floating Catchment Area Method) and GDM (Geographical Detector Model) to measure where and who are vulnerable to deprive in healthcare.ResultMeasured by IHRSD, (1) There is stronger healthcare spatial deprivation in peri-urban and developed-town in Ningbo; (2) Young childhood and fertile-women are vulnerable to healthcare spatial deprivation, in fact, they are spatially deprived in healthcare; (3) The socio-demographic attribute is a significant factor in healthcare spatial deprivation, especially the level of aging and population clustering; and (4) The relationship between healthcare spatial deprivation and accessibility shows an inverted U-shaped structure.ConclusionOur experiments show that the problems of HSD are mainly from the characteristics of the population, the layout of healthcare service institutions, the accessibility of the traffic system and the natural conditions. Although the constructions of equalization of primary medical and health services, hierarchical diagnosis, and treatment, and the “healthcare complex” are currently trying to reduce the phenomenon of HSD. Faced with groups and location, the acquisition of the accurately healthcare service supply is the key to realizing healthcare spatial equity.

With cities sprawling and populations booming in developing regions, ensuring social sustainability in urban areas has become more urgent. This study investigates the challenges of implementing social sustainability initiatives for cities in developing countries, focusing on Dhaka as a representative city. A mixed-method approach involving structured questionnaire surveys and key informant interviews was used to collect quantitative and qualitative data. The study identified eighteen challenges to implementing social sustainability initiatives in Dhaka city, including a lack of poor urban governance, an inefficient city management system, a lack of political stability, a long delay in the planning approval process, etc. Additionally, experts identified additional challenges that require attention. The study offers empirical evidence to assist government officials, policymakers, and urban planners overcome these challenges and implement social sustainability effectively. To address the identified challenges, the study recommends revisiting the Structure Plan, Urban Area Plan, Detailed Area Plan, and Urban Sector Policy-2011. It highlights the crucial role of community social workers in mitigating specific issues in socially sustainable urban development. Eventually, the study will contribute to the implementation of SDG-11 in the 2030 Agenda for Sustainable Development by bridging the gap between urbanization and socially sustainable cities.

Understanding the changes and drivers of water ecosystem services (WESs) can provide guidance for the management of ecological restoration programs (ERPs). This study analyzed the changes in WESs (water yield and water purification) and landscape patterns in the Jianghuai Ecological Economic Zone (JHEEZ) from 2000 to 2020 and revealed the effect of landscape patterns on WESs in different periods (development priority and ecological priority) through a geographic detector (GD) and geographic weighted regression (GWR). During the development priority period, there was an increase in landscape diversity and aggregation, as well as a decrease in landscape fragmentation and complexity. Additionally, the area of water bodies landscape decreased while the aggregation of cropland and built-up land increased. In contrast, during the ecological priority period, landscape diversity, fragmentation, and complexity increased, while landscape aggregation decreased. The water body area also increased, and cropland fragmentation increased. Water yield experienced an initial decrease and subsequent increase, while water purification continued to improve. Patch density and the contagion index are the main factors affecting WESs, and the improvement of water connectivity and the reduction of fragmented Landscape are of great significance to WESs. This study analyzed the impact of landscape pattern changes on WESs from a geospatial perspective and provided a reference for the sustainable development of ERPs in the JHEEZ.

The spatial-temporal distribution pattern of China’s cultivated land has changed dramatically from 1990 to 2020, and the problem of cultivated land fragmentation has become more prominent. However, the existing research lacks a focus on the two specific land use types, paddy fields and dryland. In this study, the spatiotemporal distribution pattern and the fragmentation driving mechanism of paddy field and dryland during the years 1990 to 2020 were identified by using the center of gravity center migration model, standard deviation ellipse, and land-use dynamic model for the urban agglomeration in the middle reaches of the Yangtze River as an example. The results show that there are significant differences in the spatiotemporal distribution characteristics of paddy field and dryland in the MRYRUA. Among the provinces and cities, Hubei province and its Xiangyang city showed the most obvious trend of change. The loss and gain of paddy fields and dryland is related to economic and policy contexts in each period. The main driving factor of paddy field and dryland fragmentation is natural condition, whereas a relatively important factor is the per capita disposable income of rural residents. The effects of each factor on paddy field and dryland fragmentation were not independent; any two factor interactions had a stronger effect on paddy field and dryland fragmentation than a single factor. In general, this study provides guidance and references for the main grain-producing areas undergoing rapid urbanization relating to cultivated land conservation, food security, and sustainable agricultural utilization.

This paper discusses the phenomenon of rapid urbanization and modernity that has omitted communities’ traditions. It evaluates the effectiveness of closing in on the sentience of ethics identity, it also presents solutions and instructions that create the balance between tradition and imitation, to conserve the history of our cities and social behaviors.

Lagos State, which is home to Lagos metropolis and the eighteenth largest urban agglomeration in 2018 in the world, has been characterized by rapid urbanization. An earlier study of the eastern segment of the state revealed dramatic urban growth in previously rural local councils where it replaced mostly ecological assets. For a statewide view of the landscape pattern changes, this study examined the western segment of the state to characterize the magnitude and trend of these changes. This was done with Landsat images for 1984, 2006 and 2015 along with ENVI 5.0 software and FRAGSTATS v.4.2 spatial pattern analysis program. Results show that cumulatively, the ecological assets, which comprised 75% of the area in 1984, have been whittled down to about 34% by 2015 having been lost through urban development. At the council level in 2015, the highest growth areas, in decreasing order of magnitude, were Alimosho, Badagry, Ojo and Amuwo Odofin local government areas. Both class and landscape-level metrics confirmed the dominance and fragmentation of the resultant landscape in 2015 by urban development. In 1984, vegetation dominated the landscape at 55% coverage and was the largest feature with the highest area-weighted contiguity or connectedness index. Thirty-one years later in 2015, built-up areas were the dominant patch with 54% coverage and the highest contiguity and area-weighted contiguity index, higher than vegetation. These findings have narrowed the information gap about the spatial and temporal changes in the ecological assets of the western segment of Lagos State as a result of rapid urban expansion.

Urbanization has reduced river network connectivity, posing a great threat to water security. However, the mechanism through which changes in river network connectivity impact water security remains uncertain. River network connectivity and water security have been separately and thoroughly assessed by several researchers; however, few studies conducted a coupled assessment of these two aspects together, which may shed light on this mechanism. Based on assessment indicators developed in previous studies and key influence factors identified in the study area, this study proposed a comprehensive evaluation method to continually evaluate the adaptability between river network connectivity and water security in the Wuchengxiyu region, a highly urbanized area in Eastern China. The continuous evaluation was conducted for the period 2010–2019 based on the coupling coordination degree calculation formula. The results show that from 2010 to 2015, the coupling coordination degree between river network connectivity and water security followed a downward trend, due to the uncoordinated development between water systems and urbanization. After 2015, an increasing trend was observed with the implementation of environmental policies. In the past decade, the water surface rate and the coverage rate of suitable flow velocity decreased from 4.59% to 4.28% and from 54.1% to 30.9%, respectively, which may have negative effects on water quality and limit the improvement of regional flood control capacity. Moreover, the evaluation results also prove that policies such as the Ecological River–Lake Construction and the River Chief System have contributed to improve the quality of the water environment and regional flood control. The proposed assessment framework can be used as a guidance to evaluate the relationship between water network connectivity and water security; moreover, it provides new ideas for water network system protection and water quality maintenance in similar highly urbanized areas.

To achieve sustainable urban development, it is essential to gain insight into the spatial and temporal differentiation characteristics and the driving mechanisms of the urban thermal environment (UTE). As urbanization continues to accelerate, human activity and landscape configuration and composition interact to complicate the UTE. However, the differences in UTE-driven mechanisms at different stages of urbanization remain unclear. In this study, the UTE of Shenyang was measured quantitatively by using the land surface temperature (LST). The spatial and temporal differentiation characteristics were chronologically studied using the standard deviation ellipse (SDE) and hotspot analysis (Getis–Ord Gi*). Then, the relationship between human activities, landscape composition and landscape configuration and LST was explored in a hierarchical manner by applying the geographical detector. The results show that the UTE in Shenyang continues to deteriorate with rapid urbanization, with significant spatial and temporal differentiation characteristics. The class-level landscape configuration is more important than that at the landscape level when studying UTE-driven mechanisms. At the class level, the increased area and abundance of cropland can effectively reduce LST, while those of impervious surfaces can increase LST. At the landscape level, LST is mainly influenced by landscape composition and human activities. Due to rapid urbanization, the nonlinear relationship between most drivers and LST shifts to near-linear. In the later stage of urbanization, more attention needs to be paid to the effect of the interaction of drivers on LST. At the class level, the interaction between landscape configuration indices for impervious surfaces, cropland and water significantly influenced LST. At the landscape level, the interactions among the normalized difference building index (NDBI) and other selected factors are significant. The findings of this study can contribute to the development of urban planning strategies to optimize the UTE for different stages of urbanization.

The Urban Agglomerations of Middle and Lower Reaches of the Yangtze River Economic Belt (UAMLYREB) have experienced rapid and intense urbanization over the past decades with natural ecosystems being converted to impervious surfaces. Thus, impervious surfaces are recognized as critical parameters when considering the effect of urbanization on water quality. While understanding how the threshold of impervious surfaces affects water quality has been a hot topic, there has been little quantitative analysis on how such thresholds change during rapid urbanization periods across large urban areas. To remedy this deficiency, this article made use of remotely-sensed impervious surface area data and in situ water quality monitoring observations for the period 2000 to 2018 to quantitively derive the temporal variation in the thresholds of the percentage of the impervious surface area (PISA) when inferring the relationship between PISA and a set of water quality indicators for a selection of watersheds within the UAMLYREB. We employed segmented regression model to derive the nonlinear relationship between PISA, the water quality indicators, and the PISA-related thresholds. Our results indicate that PISA may be considered a useful water quality indicator over watershed spatial scales. We also found that the threshold effects differed between water quality indicators (DO, CODMn, NH3-N), where, except for NH3-N, the indicators showed a PISA threshold of 30.08 to 42.34%, with slight variations over the study period. These results imply that maintaining PISA to be around 30% in watershed areas may be sufficient to mitigate against water quality degradation during the urbanization process.

This study assessed the influence of rapid urbanization on environmental quality in selected neighborhoods of Port Harcourt city. The investigation used both primary and secondary data sources. Primary data were collected using a structured household questionnaire was distributed to the selected neighborhoods. The study identified that population growth can cause changes to the state of solid waste collection, drainage system, basic water facilities and urban landscape in the selected neighborhoods in Port Harcourt. The study further reveals that provision of waste receptacle were inadequate in Port Harcourt (PH) Township thereby resulting to inadequate frequency of waste collection in the neighborhoods; also due to inadequate drainage facilities there was occurrence of flood in Mgbuoba and PH Township. The lack of adequate drainage system has resulted in the occurrence of flood in Mgbuoba and PH Township. Solid waste collection facilities are not adequate in all the selected neighborhoods thereby resulting in improper sanitary conditions in the neighborhoods. The Loss of vegetation cover due to urbanization has led to the reduction in the aesthetic quality and also decrease in green spaces. It was recommended to achieve an adequate environment; the government should provide adequate infrastructure for both the rural and urban areas as this will cut down the rate of population growth that put pressure on the urban environment.

In a country like Ethiopia where the vast majority of the populations are employed in agriculture, land is an important economic resource for the development of rural livelihoods. Agricultural land in peri-urban areas is, however, transformed into built-up regions through horizontal urban expansion that has an effect on land use value. In recent years Ethiopia has been experiencing rapid urbanization, which has led to an ever-increasing demand for land in peri-urban areas for housing and other nonagricultural activities that pervades agricultural land. There is a high demand for informal and illegal peri-urban land which has been held by peri-urban farmers, and this plays a vital role in the unauthorized and sub-standard house construction on agricultural land. This urbanization has not been extensively reviewed and documented. In this review an attempt has been made to assess the impacts of rapid urbanization on agricultural activities. Urban expansion has reduced the areas available for agriculture, which has seriously impacted upon peri-urban farmers that are often left with little or no land to cultivate and which has increased their vulnerability. Housing encroachments have been observed to be uncontrolled due to a weak government response to the trend of unplanned city expansion. This has left peri-urban farmers exposed to the negative shocks of urbanization because significant urbanization-related agricultural land loss has a positive correlation with grain production decrease. Appropriate governing bodies should control urban development in order to control the illegal and informal spread of urbanization on agricultural land that threatens food production.

Abstract Rapid growth coupled with the prevailing land allocation system in Oman led to a shift from compact dwellings typologies to detached single-family houses, arranged in monofunctional zoning systems that exclusively rely on cars. Due to the sprawled transformation, authorities are unable to provide new neighborhoods with basic infrastructure and attractive open spaces. Consequently, the level of non-communicable diseases is increasing, making urban regeneration programs promoting active lifestyles in built environments a matter of public health. In our research we explore participative-planning strategies to enhance pedestrian activity within existing neighborhoods and regenerate public spaces. We conducted a quantitative survey using a standard walkability scale and physical maps to identify barriers to pedestrian activity. Subsequently, we employed the data to frame culturally sensitive co-creation workshops, gaining in-depth knowledge to guide future redesign proposals. We found that mosques are walking magnets yet engender contrasting views with regard to walkability; finding solutions to the spatial problems could develop them into walkable cores. We also observed that residents were aware of health problems caused by lack of physical activity and how that links with the built environment they inhabit. They were eager to discuss solutions, including alternative governance models, as long as the process was short and produced immediate small interventions with high-level impact on their surroundings. We employed a fine-grained combination of methods to address site-specific challenges. Its quantitative data allows the insertion in a broader discourse and the linkage to a large body of research in walkability. Co-creation workshops, especially city games, proved to be a powerful tool to initiate dialogue on complex spatial negotiation, even in societies where participatory approaches do not have a well-established tradition.

Shenzhen exemplifies the rapid development of urban planning and construction in China. Over the last 40 years, many representative urban spaces and buildings have been built on Shennan Road, the city's main east–west thoroughfare, which has witnessed the formation of a multicenter structural layout and the miraculous expansion of the city. Many iconic buildings were designed by Hong Kong or foreign architects. The continuous development along Shennan Road not only symbolizes the fruits of the reform and opening up policies of Shenzhen and even China, but also reflects the modern architectural history in Shenzhen. This study uses historical research methods to review the changes in the urban fabric and the design trends, as seen in representative buildings along Shennan Road in different periods. In addition to the transition path of the city center, the unique role of streets and buildings in the development of the urban structure is analyzed, and other urban functions and symbolic meanings are identified. This work contributes to the history and theory of the modernization of contemporary Chinese architecture.

Due to climate change and rapid urbanization, contemporary cities face the dual challenges of providing sufficient stormwater management and adequate park services, which potentially conflict over limited space and resources. To solve these problems, cities are increasingly combining stormwater infrastructure with park space in ways that create new efficiencies. To date, most research has focused on the stormwater management performance aspect of these combinations and not the techniques employed to achieve the combined goals. To fill this gap, 23 sponge city parks in Shanghai were investigated to examine the combination of stormwater and park services. Our findings show that stormwater techniques were primarily combined with the park facilities of water areas, paved open spaces, and pathways. Additionally, we found that larger parks employed a wider range of techniques for managing stormwater runoff and supported broader sets of park activities, while those at smaller scales prioritized infiltration, detention, and purification measures, as well as concentrated on social and economic activities. This study is the first to explore SPC parks that integrate stormwater management and park services, thereby providing implications for SPC development in China and insights into the ways that the two properties can be combined in other cities.

Cities and urban areas are an important part of global sustainable development, and the health and well-being of urban residents are closely related to the quality, quantity, and diversity of urban ecosystem services. Although the rapid urbanization process has changed the structure and function of urban ecosystems, which is notably different from natural ecosystems, the affected ecosystem services and their interactions—the trade-off impact of urbanization intensity on ecosystem services—remain to be discussed. Using land use/land cover and impervious surface area remote sensing datasets, and InVEST and RUSLE-related ecosystem services models to evaluate seven typical ecosystem services in Shenzhen, this study explored the evolution of multiple ecosystem service trade-offs and synergies during the transition from a natural ecosystem to an urban ecosystem, and how they are affected by urbanization intensity through correlation analysis and a discrete time-step simulation model. The results show that: (1) from 1978 to 2018, in the process of ecosystem transformation, grain production dropped from 228,795 tons to 11,733 tons, fruit production peaked in 1990 at 271,508 tons, and service capacity of both showed obvious degradation. Conversely, the cultural service capacity was remarkably enhanced. (2) With the increase in urbanization level, the trade-off and synergy of ecosystem services gradually transition from linear to nonlinear. The rapid urbanization process drives the nonlinear degradation of ecosystem services and the nonlinear enhancement of synergy. (3) Over the past four decades, ecosystem service bundles within the same kilometer grid have shown a quadratic curve-like decrease with increasing impervious surface area, slowly in the early stages and faster in the later stages. This study concludes that urbanization intensity has a significant impact on ecosystem service trade-offs, which can provide support for the formulation of ecological protection and restoration strategies in territorial space based on ecosystem services.

Farmland is the most precious natural resource and the primary source of food for human beings. Urbanization not only occupies a large amount of farmland spatially, but also economically squeezes agricultural production, resulting in farmland marginalization and causing serious threats to food security. However, the manner in which rapid urbanization drives farmland marginalization in surrounding areas and the factors that might play a dominant role in this process remain elusive. Therefore, the present study considered rapidly urbanized regions of 128 county-level units in the Yangtze River Delta (YRD) of China from 2000 to 2020 as the study area. Methods such as spatial autocorrelation analysis, hotspot analysis, and multiple linear regression analysis were used to explore the spatiotemporal evolution characteristics and the driving factors of farmland marginalization. The results showed that: (i) the marginalization ratio of farmland in YRD from 2000 to 2020 was 31.34%, with a distinctly increasing trend, generally high in the central and southern and low in the north areas; (ii) marginalization exhibited different spatial agglomeration under different influencing factors: the economy-induced marginalization ratio was 23.19%, playing a dominant role, in general, distributed as high in the middle and low on the sides, while the nature-induced marginalization ratio was 8.15%, and in general, the spatial pattern shifted from discrete- to a clear- distribution of high in the south and low in the north; and, (iii) farmland area per capita, total power of agricultural machinery, GDP per capita and government farmland subsidies were the main factors driving farmland marginalization. In addition, nature-induced marginalization was primarily driven by economic level and topographical conditions, whereas economy-induced marginalization was primarily driven by production conditions. We suggest that in the future, corresponding policies and measures should be established to reduce farmland marginalization in rapidly urbanized areas and to ensure food security.

In the process of rapid urbanization, the coordination of the population–land relationship, the optimal allocation of land resources, and the improvement in land-use efficiency are the keys to ensuring the sustainable development of the region. This study takes the Nanjing Jiangbei New Area (NJNA), a national development zone in China, as a case study to construct an analytical framework for the regional population–land–industry (PLI) coupling coordination relationship. A spatial organization model of population–land (PL) flow is used to calculate the coupling coordination degree of PLI factors. The allocation of land resources is adjusted and optimized through the characteristics of the actual population served in the area to determine the new urban population that can be effectively accommodated by the new district. The comprehensive evaluation of the coordination degree of PLI coupling shows that the area connected with Jiangpu and Dacang Street has high development potential in terms of population concentration and construction land layout and can be used as a key area for future development. Based on the analysis of the spatial layout of the PL flow, further suggestions are made to optimize planning for the future population concentration area in NJNA. This study can also provide a reference for the optimal management of land resources in similar areas at home and abroad.

Municipal solid waste (MSW), commonly known as garbage, refuses or rubbish, is waste consisting of everyday items that are discarded by the public. Rapid urbanisation in India accelerates the generation of MSW, thereby producing major problems with its disposal. Improper handling of MSW creates environmental and health related hazards. In this paper an attempt is made to evaluate the solid waste management within the Jangipur Municipality, a cantonment town of West Bengal. This paper portrays MSW generation, its collection, as well as the attention of local self-government to spreading diseases. The paper also highlights the issues and challenges related to MSW, while trying try to find out some scientific treatment for solid waste management.

Urbanization alters the distribution and characteristics of waterbodies, potentially affecting both the habitat availability and connectivity for aquatic wildlife. We used Landsat satellite imagery to observe temporal and spatial changes in open-water habitats in Zhengzhou, a rapidly growing city in central China. We classified open water into six categories: perennial rivers, seasonal rivers and streams, canals, lakes, ponds, and reservoirs. From 1990 to 2020, in 5-year intervals, we identified, counted, and measured the area of each kind of waterbody, and we used a model selection approach with linear regressions to ask which climate and anthropogenic drivers were associated with these changes. We also used Conefor software to examine how these changes affected the landscape connectivity for waterfowl. Over the study period, lakes and canals were the only waterbody types to show statistically significant changes in surface area, increasing by 712% and 236%, respectively. Changes in lakes and canals were positively correlated with the length of water pipeline in the city. The connectivity of waterbodies fluctuated over the same period, mirroring fluctuations in the perennial Yellow River. Ponds contributed very little to landscape connectivity, and the importance of reservoirs decreased over time. Conversely, canals played an increasingly important role in landscape connectivity over time. Counterintuitively, the connectivity of waterbodies increased in the built-up part of the city. Our results show that urbanization can have unexpected effects—both positive and negative—on the connectivity and area of open-water habitats. These effects are likely to be important for waterfowl and other aquatic organisms.

One of the key challenges of developing countries is to tackle the mitigation of the impacts of rapid and uncontrolled urbanization. Assessing this phenomenon is crucial to lessen the consequences for the environment and society. ‘Literature has been concentrated in planning strategies for the cities’ adaptation and engagements to the principles of green development ensuring a long-term quality of life for their citizens. Hereby, smart technologies and applications consist of two of the most encouraging concepts for solutions for achieving the 2030 and 2050 horizon targets towards clean energy transition and carbon neutrality. In academia, scholars have already raised the importance of ‘smartness’ to define the adaptative patterns for the global pressures of climate change and uncontrolled urban growth. The mitigation of these phenomena is crucial to ensure the cities’ future and lessen their impacts. This study seeks a strategic and smart-driven vision to leverage smartness on the phenomenon of rapid urbanization that occurred in the case of Beijing, China. Defining and evaluating the environmental impacts in line with the RIAM approach as one of its main targets. Future works can be focused on addressing solutions in similar cases in further developing countries to not only overcome environmental, but also economic, social, and digital complications.

The major global pressures of rapid urbanization and urban growth are being compounded by climate impacts, resulting in increased vulnerability for urban dwellers, with these vulnerabilities exacerbated during the COVID-19 pandemic. Much of this is concentrated in urban and peri-urban areas where urban development spreads into hazard-prone areas. Often, this development is dominated by poor-quality homes in informal settlements or slums with poor tenure security. Lessons from a resilience-building project in the Pacific shows that a fit-for-purpose (FFP) approach to land administration can provide solutions by increasing the number of households with security of tenure, and consequently, improving resilience outcomes as informal settlements grow. This paper specifically discusses the influence of FFP land administration on reducing vulnerabilities to external shocks, such as climate change and COVID-19. It proposes ways to be better manage urban growth through the responsible governance of land tenure rights and more effective land-use planning to improve resilience to multiple shocks and stresses, hence, delivering improved access to safe land and shelter. Land administration systems can contribute to enhanced resilience to the shocks of climate extremes and pandemics by improving tenure security and enhancing land-use planning controls. It is argued that climate change adaptation and disaster risk reduction need to be better mainstreamed into two major elements of land governance: (i) securing and safeguarding of land rights, and (ii) planning and control of land use.

Most semi-enclosed seas have experienced severe eutrophication owing to high nutrient loading from rivers during rapid population growth periods. In Japan, the coastal areas of some megacities (e.g. Tokyo and Osaka) experienced considerable economic growth during the 1960s–1970s. Therefore, determining the amount of nutrient loading during this period is essential to undertake measures for the conservation of coastal environments. However, determining the nutrient loading that occurred several decades ago is generally difficult owing to lacking water quality records. In this study, the nitrogen loading in the Yamato River catchment, an urbanized coastal catchment in Asia, for 80 years from the 1940s to the 2010s is reconstructed using the Soil and Water Assessment Tool. We considered factors such as population growth, wastewater treatment plant (WWTP) construction, and changes in land and fertilizer usage in different urbanization stages. Results show that the total nitrogen loading in the catchment peaked in the 1970s at 6616 tons yr ^−1 owing to untreated wastewater discharge and rapid increase in population growth. By reducing 57% of the nitrogen loading in the 2010s from the catchment, WWTPs have been instrumental in improving the water environment. The decrease in and integration of agricultural land has reduced nitrogen loading attributed to nonpoint sources; however, this reduction was not obvious because of the high fertilizer usage before the 2000s. Overall, the findings of this study provide a comprehensive understanding of the impact of rapid urbanization in an Asian coastal catchment on nitrogen loading during the high economic growth period in the past. This study will be useful for the long-term assessment of nutrient loading in other.

Global large-scale urbanization has a deep impact on climate change and has brought great challenges to sustainable development, especially in urban agglomerations. At present, there is still a lack of research on the quantitative assessment of the relationship between urban scale and urban expansion and the degree of the urban heat island (UHI) effect, as well as a discussion on mitigation and adaptation of the UHI effect from the perspective of planning. This paper analyzes the regional urbanization process, average surface temperature variation characteristics, surface urban heat island (SUHI), which reflects the intensity of UHI, and the relationship between urban expansion, urban scale, and the UHI in the Beijing–Tianjin–Hebei (BTH) urban agglomeration using multi-source analysis of data from 2000, 2005, 2010, and 2015. The results show that the UHI effect in the study area was significant. The average surface temperature of central areas was the highest, and decreased from central areas to suburbs in the order of central areas > expanding areas > rural residential areas. From the perspective of spatial distribution, in Beijing, the southern part of the study area, the junction of Tianjin, Langfang, and Cangzhou are areas with intense SUHI. The scale and pace of expansion of urban land in Beijing were more than in other cities, the influencing range of SUHI in Beijing increased obviously, and the SUHI of central areas was most intense. The results indicate that due to the larger urban scale of the BTH urban agglomeration, it will face a greater UHI effect. The UHI effect was also more significant in areas of dense distribution in cities within the urban agglomeration. Based on results and existing research, planning suggestions are proposed for central areas with regard to expanding urban areas and suburbs to alleviate the urban heat island effect and improve the resilience of cities to climate change.

Şehirler enerji konusunda oburdur; aydınlatma, ısınma, serinleme ve ulaşım için sürekli daha fazla enerji ister. Diğer taraftan şehirler, daha yeşil bir yaşamın umut kaynağıdır; insan faaliyetlerini bir yerde yoğunlaştırmalarısayesinde, geriye kalan alanlar üzerindeki etkiyi hafiflettikleri gibi, yeniliklere uygun bir ortam sunar. Bu bağlamda şehirlerin, dünyamızın büyüme sancılarına en iyi çözüm olacağıöngörülmektedir. Daha fazla şehirleşme bir çözüm olabilir. Bununla birlikte, hızlı şehirleşme süreci, yerele, geleneksele ve doğal dokuya saygılısakin şehirlerin cazibesini her geçen gün daha da artırmaktadır. Bu çalışmada, doğa dostu şehirlerin dünyadaki ve Türkiye’deki örneklerini oluşturan sakin şehirlerde sürdürülen permakültürel yaşam tarzıdeğerlendirilerek bu şehirlerdeki koruma, planlama, yönetim ve eğitim pratikleri gözden geçirilmektedir.

Lanzhou New District is the first and largest national-level new district in the Loess Plateau region of China. Large-scale land creation and rapid utilization of the land surface for construction has induced various magnitudes of land subsidence in the region, which is posing an increasing threat to the built environment and quality of life. In this study, the spatial and temporal evolution of surface subsidence in Lanzhou New District was assessed using Persistent Scatterer Interferometric Synthetic Aperture radar (PSInSAR) to process the ENVISAT SAR images from 2003–2010, and the Small Baseline Subset (SBAS) InSAR to process the Sentinel-1A images from 2015–2016. We found that the land subsidence exhibits distinct spatiotemporal patterns in the study region. The spatial pattern of land subsidence has evidently extended from the major urban zone to the land creation region. Significant subsidence of 0–55 mm/year was detected between 2015 and 2016 in the land creation and urbanization area where either zero or minor subsidence of 0–17.2 mm/year was recorded between 2003 and 2010. The change in the spatiotemporal pattern appears to be dominated mainly by the spatial heterogeneity of land creation and urban expansion. The spatial associations of subsidence suggest a clear geological control, in terms of the presence of compressible sedimentary deposits; however, subsidence and groundwater fluctuations are weakly correlated. We infer that the processes of land creation and rapid urban construction are responsible for determining subsidence over the region, and the local geological conditions, including lithology and the thickness of the compressible layer, control the magnitude of the subsidence process. However, anthropogenic activities, especially related to land creation, have more significant impacts on the detected subsidence than other factors. In addition, the higher collapsibility and compressibility of the loess deposits in the land creation region may be the underlying mechanism of macro-subsidence in Lanzhou New District. Our results provide a useful reference for land creation, urban planning and subsidence mitigation in the Loess Plateau region, where the large-scale process of bulldozing mountains and valley infilling to create level areas for city construction is either underway or forthcoming.

The study examines the challenges of rapid urbanization on the sustainable development of Nyanya, Abuja. An interesting finding of the study is that the primary factor for the rapid urbanization of Nyanya within a short period of time is migration. The consequence of this rapid urbanization and population rise within a short period is that infrastructural facilities and services are grossly inadequate to cater for the population. The study reveals that there is inadequate good quality housing, poor waste management, inadequate electric power supply, inadequate good quality domestic water supply, inadequate and unaffordable health care facilities, poor environmental health and traffic congestion on the Abuja city-Nyanya-Maraba-Keffi road. These challenges do not commend Nyanya as a satellite town on the path of sustainable urban development. Recommendations proffered to address these challenges include; urgent need for the Abuja Federal Capital Territory Administration to embark on urban renewal of Nyanya. Adequate infrastructural facilities and services should be provided for the residents. Mechanism for periodic review and upgrading should be put in place to ensure a qualitative built urban environment, with adequate resources and facilities to support a sustainable healthy living and economic progress of the residents of Nyanya.@JASEM Key Words: Rapid urbanization, false urbanization, infrastructural facilities and services , land use, land cover, sustainable development