其中，土壤水分和土壤肥力尤其是土壤水分是喀斯特地区土壤退化关键退化因子。
Therefore, the degradation of soil water capacity and soil infertility are the key degradation factors.
西南喀斯特地区的环境脆弱性只是土壤严重侵蚀退化的前提或内因，日益尖锐的人地矛盾导致的植被破坏和退化才是喀斯特土壤侵蚀退化的关键驱动力。
Environmental fragility is only the premise of severe soil degradation, but vegetation damage induced by destructive human-soil interaction is the key driving force, or "the last straw".
喀斯特地区土地的石漠化与地层岩性、河流切割、土壤侵蚀、坡度及人类活动等有关。
Rocky desertification in the karst region is related to stratum and lithology, incising of river, soil erosion, gradient and human activities, etc.
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