Environmental Effects of Salinity

Salinity is the presence of salt in the land surfaces, in primer coat or rock, or dissolved in draw in our rivers or ground body of piss. salt naturally occurs in many an(prenominal) separate of Australias Landscape. It has been in the soil since well before farming began. faithfully of the salt is sodium chloride (NaCl), which is dishearten salt, however there ar also vary amounts of other salts present such as: sodium bicarbonate (NaHSO4: baking tonic), sodium sulfate (Na2SO4: soda ash), magnesium sulphate (MgSO4: Epsom salts), and calcium sulphate (CaSO4: gypsum). The origins of these salts can be linked to: oPrehistoric devil dog or riverine sediments2 oThe weathering or break lot of the rocks that coif up topical anaesthetic soils2 oSalts carried inland from costal areas by fond winds2 Over time, the European style farming method has significantly altered the beautify and upset the natural piss balance.2 In many of these landscapes the water system table i s rising. This is due to the presence of to a greater extent groundwater, ca utilized by the especial(a) rainwater seeping down from the surface as a result of the clearing of indigen vegetation. Dryland salinity occurs when infixed vegetation is exculpated and replaced with crops and pastures that have shallower foots and require little water.

Before clearing, the aboriginal vegetation would use most of the water from rainfall, and therefore solo a small amount would demean the groundwater system, however crops and pastures use significantly less water than native plants so more water seeps into the groundwa ter causing the water table to rise.1 Ground! water is saline as it carries dissolved salts from the soil and basics substantive that it travels through.1 Over time the saline ground water rises to near the surface in low-lying areas.3 Salt enters the plant root zone once ground water comes deep down 2 meters of the soils surface. Waterlogging (water... If you want to get a full essay, give it on our website: BestEssayCheap.com

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