Question

examine the effects of over irrigation due to large dams​

Answer 1

Answer:

The potential negative environmental impacts of most large irrigation projects described more in detail below include: waterlogging and salinization of soils, increased incidence of water-borne and water-related diseases, possible negative impacts of dams and reservoirs.

Answer 2

The effects of over-irrigation can lead to damage in the quality and quantity of the crop.  

Explanation:  

• When large dams end up over-irrigating a specific land, a number of disadvantages occur.
• Primarily, water-logging occurs and the soils get salinized leading to a lowering of the fertility of the soil. This waterlogging also leads to the creation of a number of water-borne diseases.
• Thirdly, over-irrigation floods the croplands and damage the quantity and quality of the crops.

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