SPATIAL SYSTEM OF "URBAN AGGLOMERATION" IN DISTRICT DEVELOPMENT
研究了城市群的形成原理、发展因素和空间系统，提出了四种空间结构模型，适合关注城市群空间布局的研究者。
More and more countries,cities and all kinds of enterprises are banded together and depend on each other as the developing of globalized economic society.More new situations are showing up as the combination of many factors,such as the superposition and connection of cities and towns,concentration of resource factors,recomposition of industrial enterprises,network of transportation information and moving of population and so on.Urban agglomeration is becoming more and more obvious in the developed districts.The principles of urban agglomeration,factors during its developing process,spatial system were studied,and then four spatial structural models of urban agglomeration were brought forward in this article.