Soil salinity

Dryland salinity is a major form of land degradation in Western Australia. More than one million hectares of broadacre farmland in Western Australia is estimated to be affected by dryland salinity. The Department of Primary Industries and Regional Development provides technical information to assist landholders and the community to diagnose the extent and effect of salinity, and manage the impacts. There are several practical options for increasing productivity from saline sites, and for reducing environmental damage.

Articles

  • Sporobolus virginicus (marine couch), Paspalum vaginatum (saltwater couch) and Distichlis spicata (Distichlis) have high tolerance to waterlogging and moderate tolerance

  • This page lists species commonly found on or near saline land in southern Western Australia. These species can be used as indicators of the level of salinity and waterlogging on the site.

  • Surviving plants appear to be limp and water stressed.

    Salinity affects growth by reducing plant root ability to extract water from the soil, and chloride toxicity.

  • Poor weed and pea germination due to wet saline soil

    Field peas are sensitive to waterlogging and moderately sensitive to soil salinity. Soil salinity affects plant growth by reducing the roots ability to extract water from the soil.

  • Reduced emergence and smaller plants that die earlier near saline areas

    Salinity affects plant growth by reducing the root's ability to extract water from the soil. Salinity damage varies from season to season due to variations in the soil salt concentration.