Water scarcity and management Flashcards
Physical water scarcity
When countries do not have enough water due to climatic reasons and other physical reasons
Example of a place with physical water scarcity
Northern Mali in the Sahara desert
Economic water scarcity
When a country has adequate water but doesn’t have enough money to access it or make it safe to drink
Example of country with economic water scarcity
Parts of Afghanistan
Water stress
When the water supply is below 1700 cubic metres per person per year. There isn’t enough water to provide for the basic water needs of the population
Link between poverty and water resources
Those living on less than $1.25 a day roughly equal the number without access to safe drinking water
Health related consequence of lack of safe drinking water in LEDCs
Many deaths from diarrhoeal diseases due to drinking water that isn’t safe to drink
Water management
When an area tries to increase or maintain its clean water supply using various schemes
How does water recycling by re-using greywater help with water management
It reduces the amount of water used by houses e.g. it can be used to water gardens
Effect of high water pricing on
Makes individuals and organisations think more carfully about water usage
What three things are encouraged by high water pricing?
Reusing grey water, investment in recycling systems and investment in reduction of water losses
Example of an efficient irrigation system to reduce water lost through evaporation in agriculture
Drip irrigation systems
How does rainwater harvesting help with water management?
It reduces the amount of water taken from the piped public supply
