The maps below show the changes in area after the construction of a hydroelectric power dam. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The given maps illustrate the alterations of a mountain valley in 1980 and after the development of a water power dam in 2000.

Overall

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, the forest, historical buildings and rare plants and animals were removed from

this

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place; meanwhile, all other sides of

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area, especially the river, experienced noticeable changes over the period.

To begin

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with, the hydropower station was built between elevated mountains in 2000.

As a result

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, the water volume of the river increased, and a lake appeared in the middle of the mountainous terrain, which was occupied by a wide agricultural farmland in 1980.

Moreover

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, inhabitants could fish from boats on the lake. On the east side of

this

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place, a village was replaced with a new hotel, and the village was relocated to the south side of

this

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valley.

In addition

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, the ancient structure and wood, with its rare Flora and fauna, were removed from

this

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area on the west side.

However

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, electricity was

then

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available to people after 20 years.