Karst base level is a basic and controversial issue in karst science.It is of great significance for karst theory research and production practice to explore the development law of karst base level.This paper argues that the karst groundwater watershed to the discharge area should be regarded as a karst environment with a unified karst process.At the same time,the karst height on the mountain is defined as the groundwa-ter surface between the recharge area and the discharge area,and the karst depth below the mountain is defined as the groundwater surface to the karst base level.According to the actual survey and exploration data in some areas of eastern Yunnan,the ratio of karst depth under moun-tain and karst height on mountain,and the ratio of karst height on mountain and karst base level burial depth(sum of karst depth under moun-tain and karst height on mountain)is close to 0.618,which conforms to the golden division law.Finally,this paper makes a general analysis and demonstration of the law of karst base level from the perspective of groundwater dynamics.
Karst base levelMountain karst heightKarst depth below the mountainKarst development lawGold division law
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