Presentation on theme: "Nile Delta Case Study - Landform: How does it affect people? How do people affect it? How is it Managed?"— Presentation transcript:
Nile Delta Case Study - Landform: How does it affect people? How do people affect it? How is it Managed?
Location: Where is it? Egypt Mouth of Nile Mediterranean Sea North of Cairo
What is it Like? Fan or arcuate shape Flat and low lying land Small salty lagoon / lakes River splits into distibutaries Swampy marshes
How was it made? Made of silt (alluvium) Weak tides mean the silt is not washed away The delta gradually build up and out to sea Inland parts become drier Distributaries spread to the edges
How did the DELTA landform affect peoples activities? Fertile farmland Every year the river flooded so crops could grow Every year more silt deposited The land stayed fertile
Very densely populated
But Canopus, along with other cities on the stretch of coast where five branches of the Nile once met the Mediterranean sea, has long since been lost -- drowned by seismic activity coupled with a neglect of sea defences.
The silt could be made into mud bricks for building
How have people affected the DELTA (landform)? 1970 Aswan Dam built River no longer floods and silt no longer deposited
The river used to deposit 120 million tonnes of silt onto the delta each year. Now it is only 50 million tonnes because the rest is trapped at the Aswan Dam.
So now the delta is being eroded by the sea at up to 30 metres a year.
And with Global Warming causing sea level to rise the delta is even more at risk.
In the next 50 years, Egypts coastal zone, home to more than 40 percent of the population, stands to be severely damaged by flooding, groundwater salinity and erosion resulting from rising sea levels associated with Global Warming.
Such a rise could potentially create as many as 14 million internally displaced persons With about 40 percent of all Egyptian industry located within the delta area
In the fishing village of El-Burg there is an enormous cement levee which was built six years ago to save the village from being sucked into the sea. The delta is sinking at 5mms per year. How is it being managed?
A seawall defence to stop the Nile Delta being eroded by the sea.