岩溶峡谷区溶洞发育特征及水动力条件

CHARACTERISTICS AND HYDRODYNAMIC CONDITIONS OF CAVE DEVELOPMENT IN KARST GORGE DISTRICTS

本文首先阐述了岩溶峡谷的特性及其洞穴发育的特征，在此基础上进一步划分了岩溶峡谷区６种洞穴成因类型——暗河型、伏流型、穿洞型、顺河潜流型、渗流入水洞型和瀑水钙华型。同时还分析了洞穴形成与水动力过程间的相互关系，提出了外源水和水系演变是岩溶峡谷区形成大、长洞的必要水文因素的观点。

This paper first discusses the natures of karst gorges and the characteristics of the cave development along the gorges. On the basis of above recognition,six genetic types of the caves are raised, that is, subterranean river type cave, swallet stream type cave, through cave, phreatic cave along the river valley, vadose cave of sink hole and tufa cave at the waterfall site. And then the relationship between hydrodynamic process and cave formation is analysed. Accordingly, allogenic water and drainage system changes are thought to be the essential hydrologic condition for forming large and long caves in the karst gorge districts.