Spatial distribution of mountainous regions and classifications of economic development in China

China is a mountainous country with a great diversity of landform and geomorphology. This diversity underlines the need for regionalization and classification. This study defines the mountain terrains and regions with three criteria - elevation, relative height, and slope, and examines the extent of mountainous regions by using county as the basic administrative unit. According to the three parameters of economic base, resident income and development potential, we classified the economic development level in mountainous regions of China. The findings reveal that the extent of the mountainous region accounts for 74.9% of the Mainland China's total area. The economic development of mountainous regions in China is classified into 4 main types and 23 subtypes.