本文从侵蚀-泥沙输移过程的角度,讨论了喀斯特流域土壤地下漏失的界定。认为,应将喀斯特流域的土壤漏失或水土漏失界定为坡地的土壤地下流失。进入沟道和洼地后的泥沙的运移,尽管时而进入地表河,时而进入地下河,都属于泥沙输移的范畴,不应界定为地下漏失。

From the perspective of soil erosion-sediment transportation processes,the definition of soil leaking in a karst catchments is given in this paper.The soil leaking is defined to be the soil losses into the underground on the slopes.After sediment delivering into the gully channels and depressions,thesediments are under transportation processes,either through open channels or underground channels,and the sediment moving shouldnot be defined to be the soil leaking.