Notice of Retraction: A Feasibility Study on the Service Economy in the Rise of Central China

Li-sheng, Qiu; Xiao, Hongrong

doi:10.1109/icmss.2009.5301856

Cited by 1 publication

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“…Population (POP) raster data were obtained from the world pop website https://www.worldpop.org/ (accessed on 1 January 2021), and the total number of people classified by gender and age sets (including 0-14 and over 65) for each grid was calculated in the study area during 2016-2020. Nightlight images were downloaded from https://ngdc.noaa.gov/ (accessed on 1 January 2021), and global NPP-VIIRS-like nighttime light data were obtained from http://doi.org/10.7910/DVN/YGIVCD (accessed on 1 January 2021) during 2000-2015 [47]. In addition, the hourly-averaged air observations during 2016-2020 were from China Environment Monitoring Center (CNEMC).…”

Section: Data Sources and Pretreatmentmentioning

confidence: 99%

Identifying Population Hollowing Out Regions and Their Dynamic Characteristics across Central China

et al. 2022

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Continuous urbanization and industrialization lead to plenty of rural residents migrating to cities for a living, which seriously accelerated the population hollowing issues. This generated series of social issues, including residential estate idle and numerous vigorous laborers migrating from undeveloped rural areas to wealthy cities and towns. Quantitatively determining the population hollowing characteristic is the priority task of realizing rural revitalization. However, the traditional field investigation methods have obvious deficiencies in describing socio-economic phenomena, especially population hollowing, due to weak efficiency and low accuracy. Here, this paper conceives a novel scheme for representing population hollowing levels and exploring the spatiotemporal dynamic of population hollowing. The nighttime light images were introduced to identify the potential hollowing areas by using the nightlight decreasing trend analysis. In addition, the entropy weight approach was adopted to construct an index for evaluating the population hollowing level based on statistical datasets at the political boundary scale. Moreover, we comprehensively incorporated physical and anthropic factors to simulate the population hollowing level via random forest (RF) at a grid-scale, and the validation was conducted to evaluate the simulation results. Some findings were achieved. The population hollowing phenomenon decreasing gradually was mainly distributed in rural areas, especially in the north of the study area. The RF model demonstrated the best accuracy with relatively higher R2 (Mean = 0.615) compared with the multiple linear regression (MLR) and the geographically weighted regression (GWR). The population hollowing degree of the grid-scale was consistent with the results of the township scale. The population hollowing degree represented an obvious trend that decreased in the north but increased in the south during 2016–2020 and exhibited a significant reduction trend across the entire study area during 2019–2020. The present study supplies a novel perspective for detecting population hollowing and provides scientific support and a first-hand dataset for rural revitalization.

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Section: Data Sources and Pretreatmentmentioning

confidence: 99%