On Perched Water Table?

A perched water table (or perched aquifer) is an aquifer that occurs above the regional water table. This occurs when there is an impermeable layer of rock or sediment (aquiclude) or relatively impermeable layer (aquitard) above the main water table/aquifer but below the land surface.

Is a perched water table good?

The area above the water table is the unsaturated zone and is where the plant's roots have space to grow well. If gravel is added to the bottom of the pot, the perched water table area of saturated soil without aeration is above that in the container, so even less room for the roots to grow and be healthy in.

What is the difference between water table and perched water table?

Perched ground water is subsurface water that forms a saturated horizon within porous media at an elevation higher than the local or regional groundwater table. ... The upper limit of saturation in a perched zone is referred to as a perched water table, whereas the lower limit has been defined as an inverted water table.