Physical Geography: The Nile #2 by angieopy12

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by MrReGlog
Last updated 7 years ago

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Physical Geography: The Nile #2 by angieopy12

COSTS AND BENEFITS OF ASWAN DAM IN MANAGING THE FLOOD

Benefits ➊Control the annual floods on the Nile River.➋Prevents the damage which used to occur along the foodplain➌Provides about a half of Egypt's power supply➍Improved navigation along the river by keeping the water flow consistent.➎Men has the ability to control floods.

Costs➊ The sediments of the Nile River has been filling the reservoir and thus decreasing its storage capacity. This has also resulted in problems downstream.➋Nile delta is shrinking as there is lack of sediments due to erosion. ➌Even the shrimp catch in the Mediterranean Sea has decreased due to the change in water flow.➍Poor drainage of the newly irrigated lands has led to saturation and increased salinity. (Over one half of Egypt's farmland in now rated medium to poor soils.)➎Gradual decrease in the fertility and hence the productivity of Egypt’s riverside agricultural lands(Farmers have been forced to use about a million tons of artificial fertilizer as a substitute for the nutrients which no longer fill the flood plain.)

Aswan DamRockfill dam across the Nile River. It was completed in 1970 and at a cost of about $1 billion. It is 364 feet, with crest length of 12,562 feet and a volume of 57,940,000 cubic yards.

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  • bogardus 7 years ago

    bogardus's avatar

    Great glog! Wish the scroll and interactive features worked. Love the bullets you used.