Study on the optimal scale of cities and urban agglomerations in China Study on whole competitiveness of urban agglomerations in China Research on the evolution of spatial structure of three major urban agglomerations in China Study of urban sprawl of the three greatest urban agglomerations in China 并列题名：Study on whole competitiveness of urban agglomerations in China 并列题名：Study of urban sprawl of the three greatest urban agglomerations in China Study on social capital and governance effectiveness of urban agglomerations tourism in China Innovation pattern and path of urban agglomeration in China Based on the atmosphere environment quality data of weatern urban agglomeration in China Spatial development theory and planning practice of urban agglomeration in China