随着近年来北京城市建设的迅速发展,城市土地的珍贵性日益被人们所认识。城市由向郊区农田发展,开始逐步向城区内部改建的方向转移。对北京旧城改建中的许多争论问题,需要早日研究出比较客观的和有预见性的结论,以指导当前建设。 With the rapid development of urban construction in Beijing in recent years, the preciousness of urban land has been increasingly recognized by people. From the development of suburban farmland, the city began to gradually shift to the direction of the internal reconstruction of urban areas. For many controversial issues in the reconstruction of the old city in Beijing, it is necessary to develop early and more objective and predictable conclusions to guide the current construction.