Municipal district adjustment and built-up area expansion are two main forms of urban spatial expansion. Using geometric methods, this study constructed a space-time path method to characterize the space-time relation...Municipal district adjustment and built-up area expansion are two main forms of urban spatial expansion. Using geometric methods, this study constructed a space-time path method to characterize the space-time relationship between municipal district adjustment and built-up area expansion, and drew the space-time path sets of major prefecture level cities from 2000 to 2010 by constructing a coordinate system of the standardized built-up areas and municipal district areas. This divided them into four quadrants, namely, H-H, L-H, L-L, and H-L, based on the relative mean value to evaluate overall and individual stability by three indexes of the trajectory vectors, namely, direction, length, and slope. Results provide the following conclusions. 1) Municipal district adjustment is an effective spatial expansion way for city-scale promotion in China. Since 2000, municipal district adjustments have been mainly distributed in the eastern coastal regions and mid-western capital cities along with their surrounding cities. 2) Municipal district adjustment affects the scale and status of a city in China. Many cities that have expanded municipal districts behave stably and cross quadrants. 3) Great majority second-tier cities have effectively promoted their scale and status through municipal district adjustment. The municipal district adjustment of medium and small cities in the mid-west area is relatively advanced compared with city development. 4) Municipal district adjustment with minimal magnitude is severely restricted from upgrading the scale and status of a city. The transformation from entirely incorporated counties or cities to municipal districts should be the mainstream in future municipal district adjustment.展开更多
Administrative regions are an important environment for the operation of China's market economy.The relevant economic subjects cannot predict the policy of adjustment of administrative divisions and carry out cons...Administrative regions are an important environment for the operation of China's market economy.The relevant economic subjects cannot predict the policy of adjustment of administrative divisions and carry out conscious migration behavior,adjustment of administrative divisions can be regarded as a quasi-natural experiment.The three cities of Hefei,Wuhu,and Ma'anshan,which are directly related to the adjustment of the administrative division of Chaohu,are taken as the treatment group,and the seven adjacent cities of Lu'an,Huainan,Chuzhou,Bengbu,Anqing,Chizhou,and Tongling are taken as the control group.Differences-in-Differences method and relevant control variables affecting the upgrading of industrial structure are used to test.The test results show that"Partitions of Chaohu"has a significant industrial structure upgrading effect by promoting the optimization of spatial layout,the cross-regional flow of production factors and the effective management of Chaohu Lake Basin.At the same time,the increase of total retail sales of consumer goods,urban fixed assets investment,public utility expenses in science,education,culture and health,and population plays a significant positive role in promoting the upgrading of industrial structure,while foreign direct investment plays a certain inhibition role in the upgrading of industrial structure.In order to meet the ever-developing space demands and enhance the impact on surrounding areas,the Hefei metropolitan area should be driven by technological innovation,strengthen the integration of industrial chains,improve the business environment and transportation network,and continuously promote the upgrading of industrial structure and the formation and development of new productive forces.展开更多
Administrative division adjustments(hereinafter referred to as ADA) proceed throughout China's rapid urbanization, especially during the process of metropolitanization. It has become an integral part of the transf...Administrative division adjustments(hereinafter referred to as ADA) proceed throughout China's rapid urbanization, especially during the process of metropolitanization. It has become an integral part of the transformation of China's urban and regional governance. Based on an analysis of ADA cases at the metropolitan level since 1997, this paper suggests that the stages and characteristics of ADA in China are closely related to the metropolitanization process. The internal dynamics and external constraints jointly created two stages of ADA at the metropolitan level in China, namely, a first stage from 1997 to 2007 and a second stage from 2008 to now. In the first stage, ADA primarily aimed at turning counties into districts, to meet the metropolis' demands for expansion. In the second stage, local governments laid equal stress on the two approaches of ADA, i.e., turning counties into districts and district restructuring. Such a change corresponded to the diversification of development demands of the metropolitan area. The evolution of ADA from the first stage to the second not only reflects the changing characteristics of metropolitanization at different times, but also demonstrates the viability of ADA as a means to improve the governance structure of the metropolitan area. ADA at the metropolitan level in China since 1997 basically accommodates the development of space and governance in the metropolitan area, which promotes the rapid development of a large metropolitan area.展开更多
Since the end of the Cold War,the United States has turned out to be the sole world superpower and possessed the unmatched power,and its international status and security situation reached the best period in its histo...Since the end of the Cold War,the United States has turned out to be the sole world superpower and possessed the unmatched power,and its international status and security situation reached the best period in its history.Although the U.S.power has declined relatively,its advantages have not changed substantially.The advantages of the U.S.power determine the essence of the U.S.global strategy,and since the end of the Cold War remains almost intact,which is committed to maintenance of the U.S.hegemony,including 3 core goals:maintaining security,expanding economy and promoting democracy.Since the end of the Cold War,all U.S.presidents have adhered to this hegemonic strategy while making some major adjustments,with some changing expressions and the priorities of the strategic goals.It should be pointed out that there is an important and possibly dangerous trend in the adjustments,,which is the gradual disappearance of strategic flexibility and strategic ambiguity.In other words,these global strategic adjustments after the Cold War have been increasingly focusing on China and the Asia-Pacific region.This trend is likely to continue in the second term of President Obama and will affect the development of China-U.S.relations to a large extent.展开更多
基金Under the auspices of National Natural Science Foundation of China(No.41371178,41471126)
文摘Municipal district adjustment and built-up area expansion are two main forms of urban spatial expansion. Using geometric methods, this study constructed a space-time path method to characterize the space-time relationship between municipal district adjustment and built-up area expansion, and drew the space-time path sets of major prefecture level cities from 2000 to 2010 by constructing a coordinate system of the standardized built-up areas and municipal district areas. This divided them into four quadrants, namely, H-H, L-H, L-L, and H-L, based on the relative mean value to evaluate overall and individual stability by three indexes of the trajectory vectors, namely, direction, length, and slope. Results provide the following conclusions. 1) Municipal district adjustment is an effective spatial expansion way for city-scale promotion in China. Since 2000, municipal district adjustments have been mainly distributed in the eastern coastal regions and mid-western capital cities along with their surrounding cities. 2) Municipal district adjustment affects the scale and status of a city in China. Many cities that have expanded municipal districts behave stably and cross quadrants. 3) Great majority second-tier cities have effectively promoted their scale and status through municipal district adjustment. The municipal district adjustment of medium and small cities in the mid-west area is relatively advanced compared with city development. 4) Municipal district adjustment with minimal magnitude is severely restricted from upgrading the scale and status of a city. The transformation from entirely incorporated counties or cities to municipal districts should be the mainstream in future municipal district adjustment.
文摘Administrative regions are an important environment for the operation of China's market economy.The relevant economic subjects cannot predict the policy of adjustment of administrative divisions and carry out conscious migration behavior,adjustment of administrative divisions can be regarded as a quasi-natural experiment.The three cities of Hefei,Wuhu,and Ma'anshan,which are directly related to the adjustment of the administrative division of Chaohu,are taken as the treatment group,and the seven adjacent cities of Lu'an,Huainan,Chuzhou,Bengbu,Anqing,Chizhou,and Tongling are taken as the control group.Differences-in-Differences method and relevant control variables affecting the upgrading of industrial structure are used to test.The test results show that"Partitions of Chaohu"has a significant industrial structure upgrading effect by promoting the optimization of spatial layout,the cross-regional flow of production factors and the effective management of Chaohu Lake Basin.At the same time,the increase of total retail sales of consumer goods,urban fixed assets investment,public utility expenses in science,education,culture and health,and population plays a significant positive role in promoting the upgrading of industrial structure,while foreign direct investment plays a certain inhibition role in the upgrading of industrial structure.In order to meet the ever-developing space demands and enhance the impact on surrounding areas,the Hefei metropolitan area should be driven by technological innovation,strengthen the integration of industrial chains,improve the business environment and transportation network,and continuously promote the upgrading of industrial structure and the formation and development of new productive forces.
文摘Administrative division adjustments(hereinafter referred to as ADA) proceed throughout China's rapid urbanization, especially during the process of metropolitanization. It has become an integral part of the transformation of China's urban and regional governance. Based on an analysis of ADA cases at the metropolitan level since 1997, this paper suggests that the stages and characteristics of ADA in China are closely related to the metropolitanization process. The internal dynamics and external constraints jointly created two stages of ADA at the metropolitan level in China, namely, a first stage from 1997 to 2007 and a second stage from 2008 to now. In the first stage, ADA primarily aimed at turning counties into districts, to meet the metropolis' demands for expansion. In the second stage, local governments laid equal stress on the two approaches of ADA, i.e., turning counties into districts and district restructuring. Such a change corresponded to the diversification of development demands of the metropolitan area. The evolution of ADA from the first stage to the second not only reflects the changing characteristics of metropolitanization at different times, but also demonstrates the viability of ADA as a means to improve the governance structure of the metropolitan area. ADA at the metropolitan level in China since 1997 basically accommodates the development of space and governance in the metropolitan area, which promotes the rapid development of a large metropolitan area.
文摘Since the end of the Cold War,the United States has turned out to be the sole world superpower and possessed the unmatched power,and its international status and security situation reached the best period in its history.Although the U.S.power has declined relatively,its advantages have not changed substantially.The advantages of the U.S.power determine the essence of the U.S.global strategy,and since the end of the Cold War remains almost intact,which is committed to maintenance of the U.S.hegemony,including 3 core goals:maintaining security,expanding economy and promoting democracy.Since the end of the Cold War,all U.S.presidents have adhered to this hegemonic strategy while making some major adjustments,with some changing expressions and the priorities of the strategic goals.It should be pointed out that there is an important and possibly dangerous trend in the adjustments,,which is the gradual disappearance of strategic flexibility and strategic ambiguity.In other words,these global strategic adjustments after the Cold War have been increasingly focusing on China and the Asia-Pacific region.This trend is likely to continue in the second term of President Obama and will affect the development of China-U.S.relations to a large extent.
