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clearing of trees for agriculture is a major reason for dryland salinity in some areas, since deep rooting of trees has been replaced by shallow rooting of annual crops.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 land, dry and/or land:
“I know only one person who ever crossed the ocean without feeling it, either spiritually or physically.... he went from Oklahoma to France and back again ... without ever getting off dry land. He remembers several places I remember too, and several French words, but he says firmly, “We must of went different ways. I don’t rightly recollect no water, ever.””
—M.F.K. Fisher (1908–1992)
“Two bloodless wolves whose dry throats rattle,
Two crows perched on the murrained cattle,
Two vipers tangled into one.”
—Percy Bysshe Shelley (1792–1822)
“The great fact in life, the always possible escape from dullness, was the lake. The sun rose out of it, the day began there; it was like an open door that nobody could shut. The land and all its dreariness could never close in on you. You had only to look at the lake, and you knew you would soon be free.”
—Willa Cather (1873–1947)