落水洞是地表水流入地下的进口，表面形态与漏斗相似，是地表及地下岩溶地貌的过渡类型。它形成于地下水垂直循环极为流畅的地区，即在潜水面以上。
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区内土层较厚，受洪水面状冲刷，水土向低洼地带推移、聚集，注入消水裂隙，其水土流失是通过落水洞、漏斗汇入地下伏流这一途径进行的。
The water and soil move and gather in depression belts and then flow into water-disappearing cracks. The water-soil loss is made when f...
区内土层较厚，受洪水面状冲刷，水土向低洼地带推移、聚集，注入消水裂隙，其水土流失是通过落水洞、漏斗汇入地下伏流这一途径进行的。
The water and soil move and gather in depression belts and then flow into water-disappearing cracks. The water-soil loss is made …
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