国家级都市圈增至18个，后备军还有这些→

Core Viewpoint - The article discusses the recent upgrade of the Changchun urban agglomeration to a national-level urban circle, highlighting the significance of urban circles in driving regional economic development and the potential for other cities to achieve similar status in the future [3][4]. Summary by Sections Changchun Urban Circle Upgrade - The Changchun urban circle has been officially recognized as a national-level urban circle, following the approval of its development plan by the National Development and Reform Commission (NDRC) [4]. - The urban circle encompasses an area of approximately 29,700 square kilometers and has a permanent population of about 12.1 million [4]. Economic Goals and Impact - The development plan sets ambitious economic targets, aiming for a total economic output of around 1.35 trillion yuan by 2030, with a focus on enhancing regional integration and urban functionality [4][5]. - Changchun's GDP for 2024 is projected to be 763.2 billion yuan, accounting for 53.1% of Jilin province's GDP, while the urban circle's total economic output will represent 67% of the province's economy [5]. Future Urban Circles - As of now, there are 18 national-level urban circles in China, with notable cities like Nanjing, Chengdu, and Wuhan included [7]. - Cities such as Kunming and Harbin are still in the process of planning their urban circles, with Kunming being highlighted for its potential due to its population and economic size [8][9]. Government Initiatives - The Chinese government emphasizes the development of modern urban circles as a key focus for enhancing urban governance and promoting coordinated development among cities [9][10]. - Recent policies aim to establish a framework for urban integration and improve public services across urban circles, facilitating efficient commuting and industrial collaboration [10].