Dry Land Salinity
Salinity in drylands can occur when the water table is between two to three metres from the surface of the soil. The salts from the groundwater are raised by capillary action to the surface of the soil. This occurs when groundwater is saline (which is true in many areas), and is favored by land use practices allowing more rainwater to enter the aquifer than it could accommodate. For example, the clearing of trees for agriculture is a major reason for dryland salinity in some areas, since deep rooting of trees has been replaced by shallow rooting of annual crops.
Read more about this topic: Soil Salinity
Famous quotes containing the words dry and/or land:
“D--n me, stranger, ef you can’t stay as long as you please, and I’ll give you plenty to eat and drink. Play away, stranger, you kin sleep on the dry spot tonight!”
—Administration in the State of Arka, U.S. public relief program (1935-1943)
“My father upon the Abbey stage, before him a raging crowd.
“This Land of Saints,” and then as the applause died out,
“Of plaster Saints;” his beautiful mischievous head thrown back.”
—William Butler Yeats (1865–1939)