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ESS Topic 4: Ecosystems and Ecology - Coggle Diagram
ESS Topic 4: Ecosystems and Ecology
4.1 - introduction to water systems
The hydrological cycle
the water cycle, drives the worlds weather systems
Ocean circulation system
surface currents
deep water currents
Human activity impacts on hydrological cycle
aral sea
ganges basin
run-off from urbanization
4.2 - Access to fresh water
water scarcity
over extraction of ground water
pollution of surfaces
insufficient use of water
Managing water resources
desalination
water distribution
grey water
Reducing demand
Reservoirs
Artificial recharge
High demand for fresh water
growth in population
increase in consumption of meat
increase agriculture and usage of water for crops
who has access to fresh water
more developed countries tend to have better access to fresh water
dryer ecosystems have less fresh water
lack of finance and knowledge/technology
4.3 - Aquatic food production systems
Aquatic systems - freshwater
fisheries
loss of habitat
pollution
spread of diease
escape species
food products from aquatic ecosystem
Aquatic systems - marine
marine ecosystems and food webs
capture fisheries
Unsustainable wild fisheries
managing fish stocks
aquaculture
4.4 - Water Pollution
Sources of water pollution
agriculture
Radioactive substances
Sewage and waste water
oil pollution
effects of water pollution
on human health
Environment
how to prevent water pollution
reduce plastic usage
proper disposal of chemicals
maintain car so no oil spills etc.
reduce run off from landscaping and agriculture
assessing water quality
ocean water
ground water
surface water
point source