Usually occurs in the lower reaches of a catchment. The process whereby soluble salts accumulate within the soil. A term referring to the salt content in soil or water. An area where salt crystals accumulate on the soil surface, suppressing plant growth and often leading to surface soil erosion which can expose saline subsoils. Sodicity Refers to a soil containing levels of sodium that affect its stability.
Sodic soils are dispersible and are thus vulnerable to erosion.
The ability of a soil to absorb and move water through itself. Very small spaces between soil particles often occupied by air, water or minerals. The effect of plant roots in drawing water from the soil, which dries it out and maintains watertable heights. Prior to extensive land clearing, native vegetation provided a soil sponge to a depth of six meters or more. The formation of horizontal strata or structured layers of differing characteristics.