Article
Environmental Sciences
Dan Lu, Yahui Wang, Qingyuan Yang, Kangchuan Su, Haozhe Zhang, Yuanqing Li
Summary: The study examines the impact of non-farm wage growth on population migration in China's mountainous areas, focusing on the spatiotemporal evolution of population in Chongqing municipality from 2000-2018. The results show that population in Chongqing has shifted towards the west and low-altitude areas, with population density increasing in central urban areas and decreasing in non-urban areas such as northeast Chongqing.
Article
Environmental Sciences
Mohammed Alahmadi, Shawky Mansour, David Martin, Peter M. Atkinson
Summary: This paper introduces a novel index called VBANTLI, which integrates DMSP-OLS data with vegetation and bare land areas to improve population mapping accuracy. Experimental results show that VBANTLI successfully reduces overglow and saturation effects, outperforming traditional indices.
Article
Multidisciplinary Sciences
Gabriel Cotlier, Yoav Lehahn, Doron Chelouche
Summary: The distribution of COVID-19 carriers in Israel during the early stages of the pandemic outbreak was found to be closely correlated with satellite-derived surface metrics, including night light intensity and landscape patchiness. Risk of exposure to the virus carriers was significantly higher in patchy parts of the city characterized by high spatial heterogeneity, reflecting a scale-dependent constraint imposed by the city's morphology on people's behavior. These results highlight the complex interrelationships between humans and the urban landscape, and suggest new avenues for utilizing multi-satellite data in large scale modeling of urban phenomena.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Lin Fan, Baifa Zhang, Yihang Wang, Wei Zhao, Shuai Dong
Summary: The study identified and calculated urban spatial expansion patterns in the Yellow River Basin cities. Results showed differences in expansion intensity and rate among cities, as well as different patterns between provincial capital cities and non-capital cities. The UB areas expanded from 3500 km(2) in 2000 to 10600 km(2) in 2018.
Article
Multidisciplinary Sciences
Lin Fan, Baifa Zhang, Yihang Wang, Wei Zhao, Shuai Dong
Summary: The research on urban spatial expansion patterns in the Yellow River Basin has revealed significant spatial differences, including expansion intensity and growth rates of urban built-up areas, as well as differences between provincial capital cities and non-capital cities.
Article
Remote Sensing
Yuchen Hong, Bin Wu, Zhichao Song, Yangguang Li, Qiusheng Wu, Zuoqi Chen, Shaoyang Liu, Chengshu Yang, Jianping Wu, Bailang Yu
Summary: This study produced monthly NTL composites of NOAA-20 for China from April 2019 to December 2019, showing good agreement with S-NPP composites with an R-2 ranging from 0.81 to 0.99, indicating high reliability and potential applications of NOAA-20 monthly NTL composites.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2021)
Article
Environmental Studies
Shengnan Jiang, Guoen Wei, Zhenke Zhang, Yue Wang, Minghui Xu, Qing Wang, Priyanko Das, Binglin Liu
Summary: Africa is experiencing rapid urbanization with a significant increase in built-up areas, particularly in regions with low nighttime lighting types. Countries with higher urbanization levels such as South Africa, Algeria, Egypt, Nigeria, and Libya are leading the trend of increasing brightness. The distribution of nighttime lighting types reflects the characteristics of urban development, which will have important implications for the future of African cities.
Article
Geochemistry & Geophysics
Kaifang Shi, Jingwei Shen, Yizhen Wu, Xuguang Tang
Summary: This study identified and quantified the morphology of intercity urban polycentric development using DMSP-OLS data and UL data sets in China. It evaluated the spatiotemporal change and impact factors of UPD from 2000 to 2012. The results showed that China's urban structure exhibited a pattern of high values in the eastern region and low values in the western region, and the gross domestic product had a significant impact on UPD.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Sungyeol Lee, Jaemo Kang, Jinyoung Kim
Summary: In this study, the attribute information of underground utilities and history information of ground subsidence were collected to develop a prediction model. Spatial lag model (SLM) was selected as suitable for analyzing the vulnerability of ground subsidence, and the density of underground utilities was found to be the highest influencing factor. A vulnerability map of ground subsidence in the target area was prepared using the model.
APPLIED SCIENCES-BASEL
(2023)
Article
Environmental Sciences
Yuanmao Zheng, Qiang Zhou, Yuanrong He, Cuiping Wang, Xiaorong Wang, Haowei Wang
Summary: The paper presents an optimized approach that combines nighttime light data with multiple index data to extract urban land information effectively. The novel method called VWANUI reduces saturation and blooming effects, providing high performance in analyzing and estimating urban land areas through regression models.
Article
Environmental Sciences
Chen Zuo, Wei Gong, Zhiyu Gao, Deyi Kong, Ruyi Wei, Xin Ma
Summary: This study explores the relationship between nighttime light and carbon emissions, and proposes a method to improve the accuracy of the existing carbon emission estimation model by investigating the relationship between nighttime light and carbon concentration.
Article
Environmental Sciences
Yang Zhong, Aiwen Lin, Chiwei Xiao, Zhigao Zhou
Summary: Based on the electrical power consumption data extracted from DMSP/OLS night light data, this study selected three national-level urban agglomerations in China's Yangtze River Economic Belt to investigate the spatio-temporal dynamic evolution characteristics of EPC. Various analysis methods were used to reveal the trends and influencing factors of EPC in these urban agglomerations. Results showed that EPC values varied among the urban agglomerations and certain factors, such as proportion of secondary industry in GDP and urbanization rate, had a positive impact on EPC.
Article
Economics
George Halkos, Aikaterini Leonti, Eleni Sardianou
Summary: This study uses quantile and multiple regressions to analyze the determinants of willingness to pay for entry into urban parks. The results indicate that park attributes, demographic factors, and other factors have a significant impact on willingness to pay.
ECONOMIC ANALYSIS AND POLICY
(2022)
Article
Engineering, Civil
Birong Zhang, Jia Li, Mingguo Wang, Ping Duan, Chen Li
Summary: This study examines the changes in 21 urban agglomerations in China from 1995 to 2015 using nighttime light data from two different satellite sensors. The research shows that urban expansion is more pronounced in the eastern and southern regions compared to the northern and western regions, with the Yangtze River Delta, the Pearl River Delta, and Beijing-Tianjin-Hebei experiencing the most significant changes. The urban agglomerations exhibit different internal characteristics and development modes.
JOURNAL OF URBAN PLANNING AND DEVELOPMENT
(2021)
Article
Environmental Sciences
Zeyu Zhang, Jun Zhou, Jingzhe Liu, Xiaoqian Liu, Yanwen Zhu, Huixuan Li, Yurong Cui
Summary: With the insidiously growing impact of urban development on the environment, the issue of air quality has attracted extensive attention nationally and globally. Through studying the correlation between urbanization and air quality in Jinan City over the past decade, it is found that urban development does not inevitably result in elevated levels of aerosol optical depth (AOD), and the city government has achieved remarkable results in controlling the atmospheric environment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Ziwen Liu, Qingxu Huang, Chunyang He, Changbo Wang, Yihang Wang, Kaixin Li
Summary: This study developed a new assessment framework for the water-energy nexus at the urban agglomeration scale, which can be used to identify key regions and sectors for water and energy saving. The framework considers the efficiency of input resources and connections of interregional industrial sectors, providing valuable insights for sustainable development goals.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Article
Biodiversity Conservation
Ju Shen, Shiqiang Du, Qun Ma, Qingxu Huang, Jiahong Wen, Zhan'e Yin, Jun Gao
Summary: This study proposes a new framework that integrates multiple flood return periods to assess the expected annual EFRS supply and demand in the Yangtze River Basin, China. The results show that EFRS demand increases dramatically with the return period, while EFRS supply remains relatively constant. Considering upstream EFRS supply can reduce the number of unsatisfied sub-basins, highlighting the importance of catchment-wide EFRS management.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Qingxu Huang, Han Zhang, Jasper van Vliet, Qiang Ren, Raymond Yu Wang, Shiqiang Du, Zhifeng Liu, Chunyang He
Summary: This study used a long-term multitemporal data set to analyze the spatiotemporal trends of urban expansion in endorheic and exoreic watersheds from 1992 to 2016, revealing that 70% of watersheds showed a decelerating trend in urban expansion. The speed of urban expansion in endorheic watersheds lagged behind exoreic watersheds, with the former approximately 1/4 of the latter. The pattern of urban expansion in endorheic watersheds was found to follow the low-density and sprawling trend observed in exoreic watersheds.
Article
Construction & Building Technology
Ling Zhang, Qinxu Huang, Chunyang He, Huanbi Yue, Quanbo Zhao
Summary: By utilizing the adaptive cycle framework and catastrophe theory, a method was developed to assess the sustainability dynamics of social-ecological systems (SESs) in order to ensure human well-being and achieve sustainable development goals. Applied to the Beijing-Tianjin-Hebei urban agglomeration (BTHUA), the results indicated an overall improvement in sustainability from 2000 to 2017, with identified release phases in 2006 and 2012 leading to a decrease in sustainability.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Urban Studies
Yang Yang, Jianguo Wu, Ying Wang, Qingxu Huang, Chunyang He
Summary: This study developed a new approach to quantify shrinking cities in China using nighttime light data, and identified 153 shrinking cities from 1992 to 2019, mainly distributed across eight economic regions and most provinces. The number of shrinking cities changed periodically and peaked after both the Asian Financial Crisis in 1997 and Global Economic Crisis in 2008, with severe urban shrinkage mainly occurring in northeast China between 2008 and 2013.
Article
Biodiversity Conservation
Jian Li, Zihang Fang, Jinxi Zhang, Qingxu Huang, Chunyang He
Summary: This study explores the dynamic changes in the supply-demand relationship of Flood Regulation Service (FRS) in rapidly urbanizing basins. By proposing the Supply-Demand Ratio (SDR) method, the authors successfully quantify the supply and demand of FRS and find that the imbalance of FRS supply and demand intensifies and is related to rapid urbanization. Therefore, the authors suggest proactive policies be adopted to defend against flood disaster risks in future urban construction.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Xianwang Xia, Chentai Jiao, Shixiong Song, Ling Zhang, Xingyun Feng, Qingxu Huang
Summary: This study developed a method to assess long-term regional environmental sustainability in the Beijing-Tianjin-Hebei urban agglomeration using the Google Earth Engine (GEE) platform. The assessment showed that the environmental sustainability of the urban agglomeration exhibited a trend of first rising, then falling, and then rising again over the past 30 years. The method proposed in this study provides a rapid and automatic way to evaluate regional environmental sustainability.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geography, Physical
Chunyang He, Jinxi Zhang, Zhifeng Liu, Qingxu Huang
Summary: This paper aims to systematically review land use/cover change (LUCC) research from 1990 to 2018. The study found that the number of publications and citations on LUCC research grew exponentially, with a change in research focus over time. Current LUCC research is facing theoretical, methodological, and practical challenges. To move forward, the integration of LUCC research with landscape sustainability science and geodesign is recommended.
JOURNAL OF GEOGRAPHICAL SCIENCES
(2022)
Article
Ecology
Dan Yin, Qingxu Huang, Chunyang He, Xiaobo Hua, Chuan Liao, Luis Inostroza, Ling Zhang, Yansong Bai
Summary: This study investigates the importance of ecosystem services at the landscape level and household characteristics in connecting ecosystem services and poverty alleviation in a rapidly urbanizing landscape. The results indicate that household-level differences have significant impacts on poverty alleviation. In terms of ecosystem services, regional food supply is significantly associated with poverty alleviation, and household-level benefits from cultural services have a significant positive effect on households moving to the better-off group.
Article
Geosciences, Multidisciplinary
Keer Zhang, Xuhui Lee, Natalie M. Schultz, Lei Zhao, Chunyang He, Qingxu Huang, Zhifeng Liu, Haoran Chu, Jiayu Zhao
Summary: This paper presents a global dataset on subgrid land surface climate variables produced by the Community Earth System Model. It includes data on physical state, surface energy fluxes, runoff, and atmospheric forcing conditions, making it a valuable resource for studying the climatic impacts of land use and land cover change.
GEOSCIENCE DATA JOURNAL
(2023)
Article
Multidisciplinary Sciences
Shiyin Chen, Qingxu Huang, Raya Muttarak, Jiayi Fang, Tao Liu, Chunyang He, Ziwen Liu, Lei Zhu
Summary: This paper updates the projections of global urbanization using a logistic fitting model and iteratively identifying reference countries. The projections provide urbanization levels and uncertainties for 204 countries and areas every five years, as well as year-by-year projections for 188 countries and areas based on historical data. The updated dataset is relevant for understanding future socioeconomic development and policy planning, as well as its implications for climate change.
Article
Ecology
Jinxi Zhang, Chunyang He, Qingxu Huang, Jian Li, Tao Qi
Summary: The Tibetan Plateau has a unique supply of cultural ecosystem services (CESs) with increasing demand due to rapid urbanization. However, research on the relationship between CESs supply and demand is lacking due to difficulties in obtaining empirical data. This study developed an approach using the SolVES model and social media big data to evaluate CESs supply and demand in the Qinghaihu-Huangshui basin. The results showed spatial mismatch between CESs supply and demand, with low subjective well-being in areas with high supply and low demand. Improving transportation systems to connect central cities with other counties is recommended to enhance regional sustainable development.
Article
Green & Sustainable Science & Technology
Qiang Ren, Chunyang He, Qingxu Huang, Peijun Shi, Da Zhang, Burak Guneralp
Summary: Urban expansion in dryland areas has significant indirect impacts on surrounding habitats, with the potential to threaten a large number of threatened species globally. Strategic management is crucial to mitigate the substantial impacts of dryland urban expansion on biodiversity.
NATURE SUSTAINABILITY
(2022)
Article
Remote Sensing
Xinhao Pan, Zhifeng Liu, Chunyang He, Qingxu Huang
Summary: Accurately simulating urban expansion is crucial for predicting ecological and environmental impacts, optimizing urban landscape patterns, and improving urban sustainability. In this study, a new model integrating U-Net and LSTM was proposed and successfully applied in the Beijing-Tianjin-Hebei urban agglomeration, yielding better results than existing models. The proposed model has the potential to be used worldwide.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2022)
Article
Development Studies
Chuan Liao, Ding Fei, Qingxu Huang, Lu Jiang, Peijun Shi
Summary: China launched a nationwide poverty reduction campaign in 2014 by deploying photovoltaic systems in rural areas to support over 2 million households. The study focused on Qinghai province finds that while the total installation capacity was met, there are challenges in accurately targeting the poor, improving their income, and enhancing local economic development capacity. Future photovoltaic intervention programs should consider local contexts and promote local engagement to achieve sustainable energy transition and poverty reduction goals.