The water stays there and forms a water table, like when you dig down in sand and reach water.
When a soil as impermeable, it does not allow water to pass through.
The soil under the zone of saturation.
impermeable
impermeable
gentle slope, unsaturated soil, vegetation
Impermeable means that stuff can't go through it. Wax is impermeable to water. Paper towels are not. Glass is impermeable to air. Mesh cloth is not. Some things are impermeable to one thing but not another. Clear plastic is impermeable to water and air, but not light. Lead metal is impermeable to x-rays, but not heat. Which layer is impermeable depends on what it is impermeable to.
Droughts make the soil impermeable as all of the moisture and water is evaporated from the soil
impermeable
impermeable
The soil under the zone of saturation.
impermeable
impermeable
Compacted clay soil is fairly impermeable to leaching.
Aluminium is used for soil because it is light and impermeable to oxygen and water.
Throughflow is the tranfer of water through th soil. Surface runoff is the transfer of water where the soil is impermeable so the transfer of water is on top of the soil.
gentle slope, unsaturated soil, vegetation
Impermeable means that stuff can't go through it. Wax is impermeable to water. Paper towels are not. Glass is impermeable to air. Mesh cloth is not. Some things are impermeable to one thing but not another. Clear plastic is impermeable to water and air, but not light. Lead metal is impermeable to x-rays, but not heat. Which layer is impermeable depends on what it is impermeable to.
It would seem to suggest the level of compaction of the top layers of soil. Rainfall, decomposition of organic matter and the overall composition of the soil (abundance of clay acts as an impermeable) will be major influences in compaction or settlement of the layers.