Strategies to increase water supply Flashcards
Define water security
About a population having reliable + sustainable access to enough good quality water to meet everyone’s needs for industry, agriculture, personal health and ecosystems.
What is CAMS?
Catchment Abstraction Management Strategy
What does CAMS do?
collaborative approach to water supply.
Determines amount of water abstraction in relation to needs of the environment.
influence raw water quality at its source
manage land use practices on a catchment scale.
What are EFIs?
Environmental Flow Indicators.
Used to assess whether river flows are sufficient to support a healthy ecology.
What are the advantage of catchment management?
All stakeholders have a say.
Disadvantages of catchment management?
Stakeholders have to agree
What are the advantages of reservoirs?
Stored water supply
fishing and recreational use
HEP power
What are the disadvantages of reservoirs?
Habitat loss
GHG emissions
stagnant, cold, oxygen deficient water (harms fish downstream)
sediment build up.
What are the advantages of diversion and inter-basin transfer?
localised droughts - tackled quickly.
irrigation for agriculture
more opportunity for industry to develop
address spacial variation
What are the disadvantages of inter-basin transfer?
destroy wetlands + ecosystems
construction + running costs
public resistance
harm livelihoods.
Advantages of desalination
Never ending water supply!
Disadvantages to desalination
Expensive
energy intensive (renewables currently are not providing enough energy)
only enabled in coastal areas.
Large GHG output
