中国南方喀斯特地貌分区纲要

An Outline of Karst Geomorphology Zoning in the Karst Areas of Southern China

对热带喀斯特地貌形成的动力学机制和任美锷先生提出的喀斯特地貌演化理论展开讨论,并遵循地貌类型的地带性和非地带性规律,根据地貌形态和成因的相似性,提出我国南方喀斯特地貌分区纲要。根据喀斯特地貌的气候类型,南方喀斯特地区分为:热带喀斯特地貌类型区和非热带喀斯特地貌类型区。根据喀斯特地貌形态组合,热带喀斯特地貌类型区再分为:黔中高原浅碟型峰丛洼地,黔-桂斜坡带漏斗型峰丛洼地和广西峰林平原等3个亚区。根据区域地貌形态,非热带喀斯特地貌类型区再分为:川西、滇西北中高山,滇东高原盆谷,北盘江高原峡谷,黔渝川鄂湘接壤的中低山槽谷,湘中、湘南、鄂东中低山丘陵区等5个亚区。

Dynamic mechanism for formation of trdopical karst geomorphology and karst geomorphology evolution,proposed by Prof. Ren mei＇e,are discussed in this paper. Based on zonality and anonality laws of geomorphology types and according to similarities of the karst geomorphology and its formation causes,an outline of karst geomorphology zoning in the karst areas of Southern China is proposed. According to climate types of the karst geomorphology,the areas are divided into tropical karst geomorphology zone and non-tropical karst geomorphology zone. According to karst morphology group,the tropical karst geomorphology zone is divided into the Peak- Cluster Depression subzone of shallow dish type in the middle Guizhou Plateau; the Peak- Cluster Depression subzone of funnel type in the transition slope between Guizhou Plateau and Gaunxi Hilly plain. According to regional geomorphology,the non-tropical karst geomorphology zone is divided into the medium-high mountain subzone in Western Sichuan and North-western Yunnan; the basin-valley subzone in Eastern Yunnan Plateau; the canyon subzone of Beipan River; the trough valley subzone of the medium-low mountains in the conjunction region between Guizhou,Chongqing,Sichuan,Hubei and Hunan; and the non-trough valley subzone of the medium-low mountains and hills in Middle and Southern Hunan and Eastern Hubei.