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vadose zone envelops soil, the water contained therein is termed soil moisture. In fine grained soils, capillary action can cause the pores of the soil to...

Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture), rock, ceramics, crops, or wood...

of the pore spaces in the soils, until a zone of saturation is reached. Below the water table, in the phreatic zone (zone of saturation), layers of permeable...

Soil moisture is the water content of the soil. It can be expressed in terms of volume or weight. Soil moisture measurement can be based on in situ probes...

non-vegetative areas. Riparian zones may be natural or engineered for soil stabilization or restoration. These zones are important natural biofilters...

Soils can process and hold considerable amounts of water. They can take in water, and will keep doing so until they are full, or until the rate at which...

loss of soil from farmland may be reflected in reduced crop production potential, lower surface water quality and damaged drainage networks. Soil erosion...

salt content is known as salinization. Salts occur naturally within soils and water. Salination can be caused by natural processes such as mineral weathering...

spaces'). In response to soil compressing, the pore water pressure increases and the water attempts to flow out from the soil to zones of low pressure (usually...

The soil moisture zone is the depth of soil from which plant roots extract water.  This article incorporates public domain material from Jasper Womach...

Alkali, or Alkaline, soils are clay soils with high pH (greater than 8.5), a poor soil structure and a low infiltration capacity. Often they have a hard...

salinization is irrigation. River water or groundwater used in irrigation contains salts, which remain in the soil after the water has evaporated. The primary...

Soil moisture sensors measure the volumetric water content in soil. Since the direct gravimetric measurement of free soil moisture requires removing,...

Pore water pressure (sometimes abbreviated to pwp) refers to the pressure of groundwater held within a soil or rock, in gaps between particles (pores)...

the saturated and unsaturated zones Infiltration (hydrology) – Process by which water on the ground surface enters the soil Phreatic – Term used in several...

tensiometer in soil science is a measuring instrument used to determine the matric water potential ( Ψ m {\displaystyle \Psi _{m}} ) (soil moisture tension)...

Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's...

content of soil. Through increasing soil organic matter content and improving soil structure, a buffer zone can have a positive effect on soil water storage...

Hydric soil is soil which is permanently or seasonally saturated by water, resulting in anaerobic conditions, as found in wetlands. Most soils are aerobic...

in the root zone to deeper soil layers, or into the groundwater system. Tree roots increase water saturation into groundwater reducing water runoff. Flooding...