1983年全国1:5万区调工作会议明确指出:“随着我国经济体制改革的推进,中心城市在经济建设及组织城乡生产和流通方面的作用将日益增大。查清城市及其周围地区的地质矿产、水文工程地质及环境、灾害地质等基本情况,对于以城市为中心的经济发展将有重要的促进作用。因此我们要有重点有步骤地积极安排城市地区的1:5万区调工作,首先要求完成京、津、沪和各省内中心城市及其周围地区的1:5万区调工作。”从此,1:5万区调 In 1983, the 1: 50000 Regional Dispatch Working Conference made it clear that “as China’s economic reform progresses, the central city will play an increasing role in economic construction and in the organization of urban and rural production and circulation. Basic conditions of geology and mineral resources, hydrological engineering geology and environment, and disaster geology will play an important role in boosting urban-centered economic development. Therefore, we must make active preparations for the 1: 50,000 regional transfer of urban areas Work first requires the completion of the 1: 50000 regional transfer work in and around the central cities of Beijing, Tianjin, Shanghai and other provinces. ”Since then, the 1: 50000 regional transfer