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Optimal scale of China's cities under the maximization of economic benefits and environmental benefits.
- Source :
-
Environmental science and pollution research international [Environ Sci Pollut Res Int] 2017 Aug; Vol. 24 (24), pp. 19946-19954. Date of Electronic Publication: 2017 Jul 09. - Publication Year :
- 2017
-
Abstract
- The cities are the consumption concentration of energy, resources, and the concentration of CO <subscript>2</subscript> emissions. The cities' area only accounted for 2% in the world's surface; however, their population accounted for about 50% of the total population, and CO <subscript>2</subscript> emissions accounted for about 80% of the total emissions. The cities lie in a key position in solving the global climate change. China's urbanization level was just exceeding by 50%, which was in the intermediate stage of urbanization. The rapid development of the urbanization process and the expansion of city scale have brought economic growth and all kinds of environmental issues. Therefore, is there an optimal city scale which can make cities maintain economic growth and can also reduce or even avoid the environmental problems in the meantime? The question deserves deep research. Based on the background, the data from 1998 to 2014, and the goals of the cities' economic and environmental benefits, this paper builds the optimal scale model for the cities, and obtain two conclusions: (1) in a certain period and range, the cities have the optimal scale; (2) for the cities in China, the optimal scale is about 1.78 million people.
- Subjects :
- China
Developing Countries economics
Population Dynamics statistics & numerical data
Urban Population statistics & numerical data
Cities economics
Economic Development trends
Environmental Pollution economics
Environmental Pollution prevention & control
Population Dynamics trends
Urban Population trends
Urbanization trends
Subjects
Details
- Language :
- English
- ISSN :
- 1614-7499
- Volume :
- 24
- Issue :
- 24
- Database :
- MEDLINE
- Journal :
- Environmental science and pollution research international
- Publication Type :
- Academic Journal
- Accession number :
- 28689289
- Full Text :
- https://doi.org/10.1007/s11356-017-9499-y