A Research To The Mechanism And Adjustment Methods Of Urban Sprawl Of Chengdu

In the 20th century of the twenties and thirties, the city urban sprawl first appeared in the United States after World Warâ…¡when has been extensively in the development of the United States. Urban sprawl of the phenomenon of the city mainly for city size growth continued to expand as the economy developed. The combined effects of the city gradually changed by the economic scale expand. Urban sprawl has brought it to the problems, consuming a great deal of resources, threatening the ecological balance, causing people to rely on motor vehicles, it also brings a lot of negative social impact, affecting the play and development of urban functions.After reform and opening up, Chengdu began to rapidly develop, it has been a central city population to more than 400 million people of large cities. With the urbanization of the city, it is accelerating that the city's comprehensive strength has been continuously enhanced, but in the process of urban development has encountered many problems.This article from a few parts of the city of Chengdu to study the spread of the problem:The first part discusses the research background, significance, methods and framework papers, and has done a review of the theory in order to clear the starting point of this study;The second part elaborates the principles of urban sprawl, including decentralization, new urbanism, tightening the city, smart growth, smart growth and other theories;The third and fourth at home and abroad hold two very representative example of the United States is the origin of urban sprawl, land and resources in Japan to face a situation of limited urban sprawl, the southern city of Guangzhou, the development of open and Changchun in the Central Government Under the policy of heavy industrial base northeast of evolution;The fifth and sixth part discusses in detail the spread of the Chengdu city status, characteristics, effects, driving forces and control measures;...