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Soil Salinity
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Severe salinity of the soil can be reversed. T or F
F
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How many types of soil salinity are there?
4
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How can irrigation salinity be avoided?
Only use the amount of water that crops require and no more.
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What is the type of salinity that results from over irrigation?
irrigation
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What is the main crop associated with salinity in WA?
wheat
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Give one cause of urban salinity.
overwatering green areas, leaking pipes and tanks, urban development ie more concrete which pools water in some areas
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Why do farmers need to clear the land in the first place?
To plant crops or pasture for grazing
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What is the type of salinity found in city areas?
urban salinity
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Why are native deep rooted trees a good way to prevent salinity?
They keep the water table low in the ground and the salt stays deep in the soil.
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If the salinity causes the vegetation to die what happens to the soil
it erodes away and becomes unproductive
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What area of Australia is MOSt effected by soil salinity
WA
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Which is the type of salinity that we looked at in detail?
dryland
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What is the type of salinity that results from trees being cleared?
dryland
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