Underground water buffer resolves freshwater deficit Agriculture
Climate change must take into Northern parts of the world with wetter winters and drier summers. That means less fresh water in the period when farmers there are most in need.
Underground water buffers will help the farmers. Since the summer 2015, a new underground water storage technique has been tested successfully.
Rainwater is ideal for irrigation but aboveground storage takes a lot of valuable space. Therefore areas near the coasts transform salty groundwater into fresh water via expensive reverse osmosis techniques.
Underground water storage
In western Netherlands a new system stores excess rainwater into wells and filteres it through the underground sand layers: a freshwater bubble is created in saline groundwater. The stored water can be used for irrigation.
In this way, irrigation and extraction of freshwater are in balance. The underground water buffer creates a robust freshwater supply, without expensive reversed osmosis.
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