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clearing of trees for agriculture is a major reason for dryland salinity in some areas, since deep rooting of trees has been replaced by shallow rooting of annual crops.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:
“All cries are thin and terse;
The field has droned the summer’s final mass;
A cricket like a dwindled hearse
Crawls from the dry grass.”
—Richard Wilbur (b. 1921)
“It seems, just now,
To be happening so very fast;
Despite all the land left free
For the first time I feel somehow
That it isn’t going to last....”
—Philip Larkin (1922–1986)