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Remote Sens. 2017, 9(11), 1141; https://doi.org/10.3390/rs9111141

Spatial Recognition of the Urban-Rural Fringe of Beijing Using DMSP/OLS Nighttime Light Data

1
Northwest Institute of Eco-Environment and Resources, CAS, Lanzhou 730000, China
2
School of civil engineering, Lanzhou University of Technology, Lanzhou 730050, China
3
University of Chinese Academy of Sciences, Beijing 100049, China
4
Chongqing Engineering Research Center for Remote Sensing Big Data Application, Southwest University, Chongqing 400715, China
*
Author to whom correspondence should be addressed.
Received: 20 August 2017 / Revised: 26 October 2017 / Accepted: 31 October 2017 / Published: 7 November 2017
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Abstract

Spatial identification of the urban-rural fringes is very significant for deeply understanding the development processes and regulations of urban space and guiding urban spatial development in the future. Traditionally, urban-rural fringe areas are identified using statistical analysis methods that consider indexes from single or multiple factors, such as population densities, the ratio of building land, the proportion of the non-agricultural population, and economic levels. However, these methods have limitations, for example, the statistical data are not continuous, the statistical standards are not uniform, the data is seldom available in real time, and it is difficult to avoid issues on the statistical effects from edges of administrative regions or express the internal differences of these areas. This paper proposes a convenient approach to identify the urban-rural fringe using nighttime light data of DMSP/OLS images. First, a light characteristics–combined value model was built in ArcGIS 10.3, and the combined characteristics of light intensity and the degree of light intensity fluctuation are analyzed in the urban, urban-rural fringe, and rural areas. Then, the Python programming language was used to extract the breakpoints of the characteristic combination values of the nighttime light data in 360 directions taking Tian An Men as the center. Finally, the range of the urban-rural fringe area is identified. The results show that the urban-rural fringe of Beijing is mainly located in the annular band around Tian An Men. The average inner radius is 19 km, and the outer radius is 26 km. The urban-rural fringe includes the outer portions of the four city center districts, which are the Chaoyang District, Haidian District, Fengtai District, and Shijingshan District and the part area border with Daxing District, Tongzhou District, Changping District, Mentougou District, Shunyi District, and Fangshan District. The area of the urban-rural fringe is approximately 765 km2. This paper provides a convenient, feasible, and real-time approach for the identification of the urban-rural fringe areas. It is very significant to extract the urban-rural fringes. View Full-Text
Keywords: urban-rural fringe area; DMSP/OLS nighttime light data; breakpoint method; Beijing urban-rural fringe area; DMSP/OLS nighttime light data; breakpoint method; Beijing
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Yang, Y.; Ma, M.; Tan, C.; Li, W. Spatial Recognition of the Urban-Rural Fringe of Beijing Using DMSP/OLS Nighttime Light Data. Remote Sens. 2017, 9, 1141.

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