Most soils have a water content less than porosity, which is the definition of unsaturated conditions, and they make up the subject of vadose zone hydrogeology.
22.
At any point above the water table, in the vadose zone, the effective stress is approximately equal to the total stress, as proven by Terzaghi's principle.
23.
In speleology, cave passages formed in the vadose zone tend to be canyon-like in shape, as the water dissolves bedrock on the floor of the passage.
24.
In hindsight, even the department publicly acknowledges that it erred in studying what is called the vadose zone _ the relatively dry soil above the water table.
25.
Moniz said that on a trip to Hanford in January he had explored the problem and found that " the vadose zone is intellectually virgin territory ."
26.
Movement of water within the vadose zone is studied within soil physics and hydrology, particularly hydrogeology, and is of importance to agriculture, contaminant transport, and flood control.
27.
""'Vadose Zone Journal "'is a unique publication outlet for interdisciplinary research and assessment of the Critical Zone, which comprises the Earth s critical living surface down to groundwater.
28.
The Bureau s environmental research group conducts a wide range of basic and applied research in groundwater resources, vadose zone hydrology, coastal studies, near-surface geophysics, and geologic mapping.
29.
In terrestrial ecosystems ( such as forests, deserts, and savannas ), the interactions among vegetation, the land surface, the vadose zone, and the groundwater are the main focus.
30.
The cave section in the vadose zone, the main gallery and the great collapse chamber, are rich with colorful speleothems such as stalactites, stalagmites, draperies, sinterfahne and dripstones.
