Option A: Freshwater - Part 4: Management Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

River Nile, Aswam Dam in Egypt Case Study

A
Advantages:
500 mill dollar value per year. 
Flood and drought control, allow good crops in dry years 
60% for irrigation
4 square km of desert irrigated.
HEP: 7 mill kilowatt hours per year
Recreation and tourism
Disadvantages:
Water losses
Salinization
100k displaced
Seismic stress
Channel erosion
Nile delta erosion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Integrated drainage basin management

A
Water supply
Water quality
River channels
Flood control
Agricultural, industrial, recreational, energy, ecosystem needs.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

America’s Great Watershed Initiative

A

Increase availability and quality of water for future gens.
Reduce flooding and risk.
Government, academics, businesses work to solve challenges.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Wetlands

A

Land with permanently flooded soils.
Benefits:
Water storage, aquifer recharge, storm protection, flood mitigation, erosion control, retention of carbon, nutrients, pollutants.
Clean water, tourism, timber.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The Ramsar Convention

A

Treaty for int. cooperation to conserve wetlands. Signed by 60 countries.

  • Designate wetlands of importance
  • Maintain ecological character of important sites
  • Organize to achieve wise use
  • Make wetlands nature reserves
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What causes loss of wetland habitat

A
Sea-level rise
Drought
Storms
Erosion
Dam construction
Mining for peat
Destroyed, altered, drained and removed for agriculture, settlements, transport, industry.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Community water management

A

Water saving - shorter showers, low flow rate taps, fixing dripping taps.

Customer pricing -
Domestic water consumption measured + charge customers for amount used.

Nanotechnology infiltration removes microbes and bacteria using silver ions. Reducing water costs.

Water purification and desalination of seawater.

Zoning - areas that are protected to safeguard water quality and allow aquifers to recharge.

Rainwater harvesting in to conserve moisture in the root zone of crop soil.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly