Demands on Soil Classification in Australia - Soil Classification - page 91

Table 9.6 Categories of Saline Soils as Defined by Hydrology, Soil Water Status, and Soil Chemistry

Hydrology

Primary/
Secondary/
Transient?

Groundwater/
Perched Water?

Soil
Chemistry Soil Water Saline Soil Category

Groundwater present in root zone:
salinity process driven by
groundwater.

P rimary salinity

(natural)

Mangrove swamp Sulfidic Primary, mangrove swamp, sulfidic, saline soil

Coastal marsh Sulfidic Primary, coastal marsh, sulfidic, saline soil

Gypsic Primary, coastal marsh, gypsic, saline soil

Salt pan Halitic Primary, salt pan, halitic, saline soil

Gypsic Primary, salt pan, sulfidic, saline soil

Seepage scald Halitic Primary, seepage scald, halitic, saline soil

Sulfidic Primary, seepage scald, sulfidic, saline soil

Salt seepage Halitic Primary, salt seepage, halitic, saline soil

Sulfidic Primary, salt seepage, sulfidic, saline soil

S econdary salinity

(induced, dryland salinity)

Mangrove swamp Sulfidic Secondary, mangrove swamp, sulfidic, saline soil

Drained mangrove
swamp

Sulfuric Secondary, drained mangrove swamp, sulfuric, saline soil

Coastal marsh Sulfidic Secondary, coastal marsh, sulfidic, saline soil

Gypsic Secondary, drained coastal marsh, gypsic, saline soil

Drained coastal
marsh

Sulfuric Secondary, drained coastal marsh, sulfuric, saline soil

Gypsic Secondary, drained coastal marsh, gypsic, saline soil

Salt pan Halitic Secondary, salt pan, halitic, saline soil

Gypsic Secondary, salt pan, gypsic, saline soil

Salt seepage Halitic Secondary, salt seepage, halitic, saline soil

Sulfidic Secondary, salt seepage, sulfidic, saline soil

Sulfuric Secondary, salt seepage, sulfuric, saline soil

Eroded seepage
scald

Halitic Secondary, eroded seepage scald, halitic, saline soil

Sulfuric Secondary, eroded seepage scald, sulfuric, saline soil

Groundwater absent from root zone:
salinity process driven by seasonal
perched watertable in root zone.

T ransient salinity (natural) Topsoil

“Magnesia” patch

Halitic Transient, natural, topsoil, halitic, saline soil

Sodic Transient, natural, topsoil, sodic, saline soil

Subsoil Sodic Transient, natural, subsoil, sodic, saline soil

T ransient salinity (induced) Surface soil

“Magnesia” patch

Halitic Transient, induced, surface soil, halitic, saline soil

Sodic Transient, induced, surface soil, sodic, saline soil

Subsoil Sodic Transient, induced, subsoil, sodic, saline soil

Eroded Halitic Transient, induced, eroded, sodic, saline soil

Adapted from Fitzpatrick et al., 2001