Soil Salinity

Soil Salinity Soil Salinity Salinity in both the rivers and on the land is one of the main and nearly costly results of overclearing and irrigation. Salinity is caused by changes in the delicate gap between surface water and groundwater systems. A small subdivision in the infiltration of water from the topsoil to the groundwater, due to rainfall or irrigation, can result in a bully rise in groundwater pressure and watertable levels. The trees of the open forests are without watch replaced by shallow-rooted crops and pastures which absorb far less water than the pristine trees.

Those trees had been ma ssive water pumps, sucking up moisture from rich underground and putting it back into the atmosphere through the drying up from their leaves. With those pumps gone, excess rainfall accumulates underground and watertables rise to the surface, bringing out-of-date sediments of salt with them, often in heavy concentrations. Once pervious to the air and sun, the salts become even mor...If you want to get a full essay, order it on our website: BestEssayCheap.com

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