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  2. Salinity in Australia - Wikipedia

    en.wikipedia.org/wiki/Salinity_in_Australia

    Salinity in South Australia is a problem in all principal agricultural areas, with 370000 hectares of land and wetlands impacted. At current rates, this is expected to increase by 60% by 2050. [ 12 ] It is expected to cost the state around $47million per year in lost agricultural profit, and is expected to taint more than 20% of ground water to ...

  3. Soil salinity control - Wikipedia

    en.wikipedia.org/wiki/Soil_salinity_control

    This damage is an average of 2,000 hectares of irrigated land in arid and semi-arid areas daily for more than 20 years across 75 countries (each week the world loses an area larger than Manhattan)...To feed the world's anticipated nine billion people by 2050, and with little new productive land available, it's a case of all lands needed on deck.—principal author Manzoor Qadir, Assistant ...

  4. Salt tolerance of crops - Wikipedia

    en.wikipedia.org/wiki/Salt_tolerance_of_crops

    The salt level is often taken as the soil salinity or the salinity of the irrigation water. Salt tolerance is of importance in irrigated lands in (semi)arid regions where the soil salinity problem can be extensive as a result of the salinization occurring here. It concerns hundreds of millions of hectares. [2]

  5. Soil conservation - Wikipedia

    en.wikipedia.org/wiki/Soil_conservation

    Salinity in soil is caused by irrigating with salty water. Water then evaporates from the soil leaving the salt behind. Salt breaks down the soil structure, causing infertility and reduced growth. [citation needed] [14] The ions responsible for salination are: sodium (Na +), potassium (K +), calcium (Ca 2+), magnesium (Mg 2+) and chlorine (Cl −).

  6. Soil salinity - Wikipedia

    en.wikipedia.org/wiki/Soil_salinity

    Soil salinity is the salt content in the soil; the process of increasing the salt content is known as salinization. [1] Salts occur naturally within soils and water. Salination can be caused by natural processes such as mineral weathering or by the gradual withdrawal of an ocean.

  7. Dryland salinity - Wikipedia

    en.wikipedia.org/wiki/Dryland_salinity

    Establishing salt-tolerant plants can improve salt discharge rates and improve soil health. Improvements undertaken at a catchment scale bring many benefits, not the least of which is providing for increased agricultural and associated regional productivity – using water for production that otherwise would contribute to an environmental problem.

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  9. Environmental impact of irrigation - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    waterlogging and drainage problems in villages, agricultural lands, and along roads - with mostly negative consequences. The increased level of the water table can lead to reduced agricultural production. shallow water tables - a sign that the aquifer is unable to cope with the groundwater recharge stemming from the deep percolation losses