• 责任者：Liu Xiaojiao (College of Land and Resources ; China West Normal University ; Nanchong 637009 ; China) ; Xu Juan
• 刊名：Journal of Mountain Research
• 出版年：2013
• 卷期：31(6)
• 关键词：地貌 ; landforms ; 丘陵 ; hills ; 四川 ; Sichuan Province
• 页码：p.723-730
• 图表：7 illus., 2 tables, 29 refs.
• 分类号：1400
• issnNo：ISSN1008-2786
• isbnNo：CN51-1516/P

     River potholes, proving some records of the evolution of the drainage and geomorphological, is one of the crucial evidences of the interaction between water and riverbed boundary conditions. Therefore, we take river pot- holes from two kinds of rock properties area （ sandstone and mudstone） in Sichuan Hilly Area of China as research objects. Based on the precise measurement of the field, this paper defines scale and the proportion of pothole mor- phologie parameter, compares the morphological of river potholes from the two kinds of rock properties and analysis of its causes. It is showed that the density and depth of potholes from sandstone bedrock is larger than potholes from mudstone bedrock in terms of scale, on the contrary, the long and short axis of potholes is smaller. As to plane mor- phologic of potholes, the oblateness of potholes from sandstone bedrock is smaller than potholes from mudstone bed- rock. As to vertical profiles of potholes the depth and width ratio of the potholes from sandstone bedrock is larger than potholes from mudstone bedrock and potholes from sandstone bedrock dominated by inverted ~ - and U - shape, however, potholes from mudstone bedrock dominated by V -shape. The above-mentioned is closely related to hydrodynamic conditions of river, fracture, bedload, lithology and time and establish conceptual model of the pot- holes. This study will enrich and improve the azonal characteristics and regional representation, provide a scientific basis for the evolution of fluvial geomorphology in Sichuan Hilly Area.