For the first time, my country has completed the determination of the urban areas of 683 cities across the country. Since July 2019, the Ministry of Natural Resources has joined forces with Tongji University, Peking University, Wuhan University, Harbin Institute of Technology, etc.

to give full play to the advantages of earth observation technology. Since April 2020, 107 cities have been selected to conduct 4 rounds of standard trial planning demonstrations to continuously verify the adjustment technical route. In 2023, based on the "National Land and Space Planning Outline (2021-2035)" (hereinafter referred to as the "Outline"), our ministry will apply the results of the national land survey to organize the national 683.