Preliminary Study on Morphology Features of Karst in the Lower Reaches of Wujiang River——A Case in Wulong, Chongqing and the Surrounding Area
详细信息
- 责任者：Xia Kaisheng (Key Laboratory of Eco-Environments in Three Gorges Reservoir ; Ministry of Education ; School of Geographical Sciences ; Southwest China University ; Chongqing 400715 ; China) ; Yuan Daoxian
- 刊名：Carsologica Sinica
- 出版年：2010
- 卷期：29(2)
- 关键词：岩溶地貌 ; karst features ; 重庆 ; Chongqing
- 页码：p.196-204
- 图表：illus., 3 tables, 23 refs.
- 分类号：1400
- issnNo：ISSN1001-4810
- isbnNo：CN45-1157/P
摘要
The geomorphology is typical subtropical karst middle mountain and gorge with characteristics of large scale karst gorge,natural briddge,tiankang,cave and underground river as well as colorful second deposits at the lower reaches of the Wujiang River. The karst individual feature and feature complex on stratified relief plane are analyzed and the evolution of the karst morphology at the lower reaches of the Wujiang River is studied in the paper. It is believed that: 1) the stratified relief plane can be divided into 2 grade planation surfaces, 1 grade corrosion surface, 5 grade horizon karst caves and 3 grade terraces; 2) there are obvious different karst feature among different period of planation surfaces; and 3) the karst morphology once experienced 3 periods of evolution as the Exi period, Shanyuan period and Pendi period as well Xiagu period, which leading to the formation of the Exi and Shanyuan karst planation surfaces and the Pendi corrosion surface as well as the Xiagu gorge.