Megalopolisation: An Effect of Large Scale Urbanisation in Post-Reform China
نویسنده
چکیده
Megalopolis is a group of densely populated metropolitan areas that combine to form an urban complex. Since China introduced the economic reforms in late 1970s, the Chinese urban system has experienced unprecedented growth. The process of urbanisation prevailed in the 1980s, and the process of predominantly large city growth appeared to continue through 1990s and 2000s. In this study, the magnitude and pattern of urbanisation in China during 1990s were examined using remotely sensed imagery acquired by TM/ETM+ sensor onboard the Landsat satellites. The development of megalopolis areas in China was also studied based on the GIS analysis of the increases of urban and built-up area from 1990 to 2000. The analysis suggests that in the traditional agricultural zones in China, e.g., Huang-Huai-Hai Plains, Changjiang River Delta, Pearl River Delta and Sichuan Basin, the urban and built-up areas increased by 1.76 million hectares, of which 0.82 million hectares are expansion of urban areas, an increase of 24.78% compared with 1990 at the national scale. The Yellow River Delta, Changjiang River Delta and Pearl River Delta also saw an increase of urban and built-up area by 63.9%, 66.2% and 83.0% respectively. As a result, three major megalopolises were developed in China: the Guangzhou-Shenzhen-Hong KongMacau (Pearl River Delta: PRD) megalopolis area, the ShanghaiNanjing-Hangzhou (Changjiang River Delta: CRD) megalopolis area and the Beijing-Tianjing-Tangshan-Qinhuangdao (Yellow River Delta-Bohai Sea Ring: YRD) megalopolis area. The relationship between the processed of megalopolisation and the inter-provincial population flow was also explored in the context of social-economic and transport infrastructure development in Post-reform China. Keywords—Megalopolisation, Land use change, Spatial analysis, Post-reform China
منابع مشابه
Siqing Chen Megalopolisation : An Effect of Large Scale Urbanisation in Post - Reform China
Megalopolis is a group of densely populated metropolitan areas that combine to form an urban complex. Since China introduced the economic reforms in late 1970s, the Chinese urban system has experienced unprecedented growth. The process of urbanisation prevailed in the 1980s, and the process of predominantly large city growth appeared to continue through 1990s and 2000s. In this study, the magni...
متن کاملPublic Space in Urbanisation Area: A Case Study of Xihuangcun Road
Urbanisation is still one of the social themes in developing countries. In China, the rapid process of urbanisation and economic growth bring to people not only more opportunities for creating new life and pursuing happiness, but also the challenge to face various and complex social, economical and environmental problems. Among them some are outstanding, like the shrinking plowland devoured by ...
متن کاملReforming China’s Institutional Environment for Urban Infrastructure Provision
Rapid urbanisation in the reform period has resulted in a very high demand for basic urban infrastructure in China. Improving its provision by the public sector is a challenge as problems persist in the form of unmet demand, de® ciencies in cost recover y and inadequate maintenance. Institutional hurdles, particularly the lack of organisational and ® nancial autonomy for the providers of urban ...
متن کاملBalancing Rural and Urban Development: Applying Coordinated Urban–Rural Development (CURD) Strategy to Achieve Sustainable Urbanisation in China
Land in rural China has been under a separate and closed management system for decades even after the urban land reform that started in the late 1980s. The blurred property rights over rural land have been hindering the rural welfare as surplus rural land in sub-urban areas cannot be circulated into more economic use without first being requisitioned by the state. This traditional conversion pr...
متن کاملEffect of white spot syndrome virus on the activity of immune-related enzymes in the red claw crayfish (Cherax quadricarinatus)
In this study, we explored the pathogenic effects of white spot syndrome virus (WSSV) and effects of yeast cell wall in the red claw crayfish, Cherax quadricarinatus, by investigating the activity of enzymes related to innate immune function following artificial infection of immunized and non-immunized crayfish. Our results reveal that the activity of four enzymes, phenoloxidase (PO), peroxidas...
متن کامل