Resource Management Flashcards

(42 cards)

1
Q

Stats about the River Ganges

A

1 billion of raw sewage and 260 million litres of untreated industrial wastewater is pumped in every day

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2
Q

Stats about Egypt

A

86% of water is used for agriculture
2050- estimated 30% decline in food
already import 40% of food

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3
Q

Stats about China: Water management

A

20% of the worlds population but they only have access to 7% of water
By 2030, industrial demand may rise by 24%
water shortages have cost up to $40 billion in lost crops
use 20% of water for coal mines and power stations

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4
Q

Benefits of Lesotho Highland water project for Lesotho

A

Provides 75% of their GDP
Provides all hydroelectric needs
sanitation could improve
water will supply 90% of capital Maseru

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5
Q

Cons of Lesotho Highland water project for Lesotho

A

Construction of first 2 dams displaced 30,000 people
natural wetlands destroyed
corruption has prevented money being used for good
will displace 17 villages

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6
Q

Advantages of Lesotho Highland water project for South Africa

A

provides water for 10% of people who originally had none
restores water balance
acidity levels in Vaal reservoir have lessened
60% of Johannesburg’s water

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7
Q

Disadvantages of Lesotho Highland water project for South Africa

A

corruption
increased water tariffs make it inaccessible for the poor
costa around $4 billion
40% of water lost through leaks

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8
Q

stats about Lesotho Highland water project

A

Plan is for 200km of tunnels to transfer 2,000 million m^3 of water
currently 5 dams and 32 km of tunnel

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9
Q

Stats about Hitosa

A

140km pipe from Mount Bada, used by 65,000 people

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10
Q

What is a Taanta

A

underground storage for water

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11
Q

What is a Pat

A

irrigation channels for fields

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12
Q

What is a johad

A

earth dams that trap rainfall, this has raised the wate table by 6m in the Wakel Basin

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13
Q

Where is the Wakel River Basin Project

A

State of Rajasthan, India

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14
Q

What is the Wakel River Basin Project

A

Aims to improve the security and management of water to store rainfall due to rare rainfall and largely desert biome

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15
Q

Factors affecting water availability

A

Geology
Pollution of source
Poverty
Over-abstraction
Population
Climate
Limited infrastructure

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16
Q

What are the impacts of water insecurity

A

Water pollution
Food production
Industrial output
Conflict

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17
Q

What are the social issues of water pollution

A

open sewers can allow quick spread of diseases such as cholera
have to take time to collect water which could be used at school

18
Q

what are the economic issues of water pollution

A

pressure on healthcare
less people able to work can create an economic decline

19
Q

What are the environmental issues of water pollution

A

toxic chemicals can pesticides can leak into rivers

20
Q

What are the social issues of food reduction

A

Can cause famines and families can lose income

21
Q

Economic issues of food reduction

A

food prices increase which can make it harder for countries to import food and they may have less to export.
Famines cause reduction in workers

22
Q

Environmental issues of water insecurity on food production

A

droughts can cause crop failure

23
Q

Social issues of water insecurity and industry

A

Industry often has a high demand for water causing shortages for the people.
Less profit for industry in times of water shortage can result in unemployment

24
Q

Economic issues of water insecurity and industry

A

Industry relies on water supply so it can reduce a countries income

25
Environmental issues of water insecurity and industry
contributes to water pollution
26
Social issues caused by conflict and water insecurity
Countries where major water sources originate can limit the volume of water reaching other countries
27
Example of conflict due to water insecurity
Rogun Dam, Tajikistan Vaksh river flows from Tajikistan to Uzbekistan, however there are plans to build a 300m tall dam which will significantly reduce Uzbekistan access
28
Advantages of a water transfer system
Can redistribute water from an are of surplus to an area of deficit China's south-north water transfer allows water to be taken to the dry north
29
Disadvantages of water transfer schemes
They are very expensive. China is spending $80 billion. Can be controversial
30
Advantages of dams and reservoirs
can be used for hydro-electric power Kielder water - makes up for over-abstraction downstream. 10 km long reservoir, largest in UK
31
Disadvantages of Dams and reservoirs
expensive to construct can displace people huge areas flooded reduce flow downstream vulnerable to evaporation in the summer, losing lots of water
32
Advantages of desalination
can act as a temporary source technology has made brine more concentrated- less of it to deal with can provide potable water to hot regions
33
Disadvantages of desalination
reverse osmosis -requires lots of energy waste product brine- heavily concentrated salt which can destroy ecosystems
34
advantages of diverting supply amd increasing storage
can prevent evaporation Oklahoma uses it as they have rare but very heaby rainfall
35
Grey water
Waste water from people's himes
36
Factors that limit resources
Physical supply Population growth Demand exceeding supply globally Impact of climate change
37
Reasons for changing water demand in the uk
Greater use of domestic appliances Irrigation increase for fields Demand for leisure activities Rapid growth of housing Population growth
38
Strategies to combat water stress
Smart metres Repairing pipes Restrictions Laws Communication
39
How much water is wasted in leaks in the uk
5%
40
What is the Taff Bargoed Valley water project
Closed mine contaminated local water supplies. Treatment system hilt which prevents 72 tonnes of iron from entering the river each year and treats 120 litres per second
41
Northern Ireland water project
85% decrease in pollutants entering River Lagon, this cost £10 million
42
Opposition to Keilder water transfer scheme
Displaced farming communities £150 million cosdisrupted breeding patterns of fish Flooded an area of outstanding natural beauty 1.5 million trees felled