This work was supported by the State Key Project on Fundamental Research Planning (Grant No. G1998040800) ;CAS Pandeng Projects (Grant No. kz951 -A 1 -204 and kz95T-06).
Traditional theories of geographical cycle and pediplain cannot describe correctly the development of planation surfaces in karst regions. Authors, therefore, put forward conception of karst planation and karst planat...
Planation surfaces includes peneplain, pediment and etchplain, which differ from each other in formation and distribution. The double leveling surfaces theory offered by Budel can be used to explain the landforms in l...