Urban spatial form influences the social, economic, and ecological development modes of the city. The spatial form
during the urbanization of Hanjiang River Basin in Southern Shaanxi needs to be studied. In this study, research methodologies
on urban spatial form in China and abroad were summarized. The concept of ecology background was
applied, and the research framework for urban spatial form, which integrated the background, framework, core, axis,
cluster, and skin, was established. Valley cities in the Hanjiang River Basin in Southern Shaanxi were classified into wide
valley, narrow valley, and canyon cities. The spatial form characteristics of these three types of valley cities were discussed.
A case study based on a typical city-Yang County-was conducted to discuss the characteristics of the aforementioned
six elements of urban spatial form. Finally, spatial form characteristics were summarized. These characteristics
provide a basis for the study of the small valley urban spatial form in the Hanjiang River Basin in Southern Shaanxi.
Keywords: Small Valley City, Spatial Form, Hanjiang River Basin, Southern Shaanxi
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