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Flashcards in General Rivers Deck (70)
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1

What is the Hidrovia Project?

Scheme to allow shipping along the Parana river, would be 3,442km

2

Why was the Hidovia stopped in 1997?

Economic benefit was less than the environmental loss

3

Why did the dissolution of the Hidrovia lead to more problems?

Tyranny of small decisions
Many small scale projects lack higher level scrutiny and management

4

Where is the Rio Parana?

South America, Argentina, Uruguay, Brazil, Paraguay and Bolivia

5

What is the discharge of the Rio Parana?

16,000 m3/s

6

What habitat lines the Rio Parana?

Wetlands

7

What natural climate event changes flow in the Parana?

El Niño

8

What poisonous materiel polluted the Brahmaputra?

Arsenic

9

Which high sediment river joins the Parana?

Rio Bermejo

10

What is the largest river in Bangladesh?

The Brahmaputra

11

What is the Jacyreta Dam?

A late dam in the Parana, cost $11Billion built in 1998

12

What do man made river features do to rivers?

Divert or interrupt flow, reduce link between river and surrounding area

13

What do small pools at the side of the Parana act as?

Nursery grounds for fish

14

What does a -0.25 m reduction is average river hight do to the surrounding area if the Parana?

Reduces wetlands by 14%

15

Why is the worlds largest wetland?

The Pantanal, in the Parana catchment

16

How much money does a flood cause Bangladesh?

$2Billion

17

How much erosion can take place on the Brahmaputra each year?

800m

18

What years did Bangladesh floods exceed 35% of the country?

1988,1998,2004 and 2007

19

How much more sediment is taken away from Brahmaputra than is replaced?

150 times

20

What is the Brahmaputra Right Embankment?

Large engineering project designed to control one side of the Brahmaputra

21

Where are reventments used?

Places of importance, e.g Bahadurabad and Ghutail

22

Where is an example of a permeable groin?

Katlamari

23

After the Amazon what is the largest river basin in South America?

The Parana

24

What is the mouth of the Parana called?

Rio De La Plata

25

What type of river is the Parana?

Braided River

26

Why did the Parana river move north west?

Moving of tectonic activity pushing the plate up and moving the river

27

Why is the Parana stuck at its current location?

Its pinned up against a fault

28

Why is the Parana wetland important?

Centre for high biodoversity

29

Why does the Rio Bermejo have so much sediment?

Full of wind blown sediment

30

What is the sediment content of the Rio Parana?

6,499 mg/L