13 terms

GCSE Factors affecting water supply

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Physical factors
Natural things such as climate, soils, relief and geology that affect water supply
Human Factors
Things such as politics, technology and government decisions that influence water supplies
Over-abstraction
When water is being used more quickly that it is being replaced. This exists where water demand is greater than supply.
Water transfer
Water transfer schemes attempt to make up for water shortages by constructing systems of canals, pipes, and dredging to transport water from one river basin to another.
Geology
This affects where water is stored and the location of aquifers and groundwater. Depends on the PERMEABILITY of the rocks
Permeable rocks
Rocks that allow water to seep through
Impermeable rock
rock that does not allow water to pass through it
Climate
Influences the availability of rainfall, snowfall and rates of evaporation. Climate can vary, with wetter and drier periods, hotter and colder periods. This can affect water availability.
Rivers
are large, natural streams of fresh water that transfer water from place to place
Water pollution
Pollution to the water that is harmful and caused by human activity such as agriculture, industry or sewage effluent. Limits water supply
Water infrastructure
the pipework, cleaning facilities, waste treatment plants, pumps and storage facilities needed to guarantee water supplies within a country or place
HICs and NEEs
Can afford water transfer and infrastructure schemes to guarantee water supplies
LICs
Struggle to afford water transfer and infrastructure schemes to guarantee water supplies