Satellite monitoring of shrinking cities on the globe and containment solutions

Zhai, Weixin; Jiang, Zhuwu; Meng, Xiangfeng; Zhang, Xiaoling; Zhao, Mengxue; Long, Ying

doi:10.1016/j.isci.2022.104411

Cited by 25 publications

(6 citation statements)

References 71 publications

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“…Nighttime light, aided by advancements in earth observation techniques, has emerged as a valuable tool for capturing economic activity [ 26 ], population density [ 27 , 28 ], and electrical power consumption at various scales [ 29 ]. Due to its ability to reflect light generated from different energy sources, including fossil fuels and oil, remote sensing data of nighttime light has been effectively utilized to estimate energy consumption [ [30] , [31] , [32] ].…”

Section: Literature Reviewmentioning

confidence: 99%

Revisiting the relationships between energy consumption, economic development and urban size: A global perspective using remote sensing data

Ma,

Li,

Luo

et al. 2024

Heliyon

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Section: Literature Reviewmentioning

confidence: 99%

Revisiting the relationships between energy consumption, economic development and urban size: A global perspective using remote sensing data

Ma,

Li,

Luo

et al. 2024

Heliyon

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“…Existing articles, including case studies and satellite image-based studies, have demonstrated and identified the widespread prevalence of SCs mostly based on the present and past datasets in both developed and developing countries (Guan et al, 2021; Zhai et al, 2022). Future predictions are also mostly focused on certain countries, rather than at a global scale.…”

Section: Introductionmentioning

confidence: 99%

Future shrinking cities on the globe: A projection map for 2020–2100 based on global gridded population dataset

Wang

Long

2023

Environment and Planning B: Urban Analytics and City Science

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Shrinking cities have become increasingly prevalent worldwide due to various factors, which pose serious challenges to affected areas in terms of population decline, economic decline, and spatial deterioration. While existing research studies have focused on identifying shrinking cities, there is a need for global projections to mitigate uncertainties in their growth trajectories. Spatially explicit population grids offer a new approach to identifying potentially shrinking cities with sufficient spatial resolution. By utilizing a global gridded population dataset from 2020 to 2100 under the SSP2 (Middle of the Road) scenario, we produce a global projection map for future shrinking cities. Among the total 19,024 natural cities, 9682 cities (50.9%) will face population decline and 1751 cities (9.2%) may lose more than half population by 2100. Cities in East Asia and East Europe may face serious population decline.

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“…Urban shrinkage has become a universal phenomenon globally, with 37% of cities projected to experience shrinkage by 2050 (Zhai et al 2022). Urban shrinkage is a complex, dynamic non-linear feedback process involving the urban population (size, age, and employment), capital, resources, and public services (Wolff and Wiechmann 2017a, Lym 2021, Wichowska 2021.…”

Section: Introductionmentioning

confidence: 99%

Impacts of urban shrinkage on the built environment and its environmental sustainability: an analytical review

He,

Gao,

Guan

et al. 2023

Environ. Res. Lett.

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The proliferation of case studies of shrinking cities in recent years has stimulated intense debate on the impacts of urban shrinkage. However, assessing the impacts of urban shrinkage from a comprehensive perspective could be more present. Also, there is a lake of analytical review of historical studies about the impacts of urban shrinkage. The built environment has different characteristics under different urban development patterns involving infrastructure, services, and social, economic, and structural factors, which provides a best practice for exploring the impacts of urban shrinkage. This study synthesizes the literature surrounding urban shrinkage and built environment changes, identifying that urban shrinkage notably affects the different components of the built environment and gives rise to four related environmental and sustainability impacts involving urban landscapes and structures, ecological sustainability, socioeconomic vitality, and residents' perceptions. Furthermore, there are interactions between the environmental and sustainability impacts, involving trade-offs and synergies between residents' perceptions, ecological sustainability, and socioeconomic vitality. The study also summarized the mainstream methods for assessing the impacts of urban shrinkage and explored the effects of urban shrinkage management strategies on improving the built environment. Finally, a framework for future direction is presented for the final to integrate the theories of urban shrinkage, people and land relationship, and sustainable urban development to guide further exploration in the field. In summary, this study implies that restoring and upgrading the built environment can pave the way for a common goal for long-term sustainable development. The value of this study is to provide relevant researchers with the knowledge to understand the developing frontiers of urban shrinkage impacts on built environments.

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Satellite monitoring of shrinking cities on the globe and containment solutions

Cited by 25 publications

References 71 publications

Revisiting the relationships between energy consumption, economic development and urban size: A global perspective using remote sensing data

Revisiting the relationships between energy consumption, economic development and urban size: A global perspective using remote sensing data

Future shrinking cities on the globe: A projection map for 2020–2100 based on global gridded population dataset

Impacts of urban shrinkage on the built environment and its environmental sustainability: an analytical review

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