Topic 6: Resource Management Flashcards
(13 cards)
Define Biotic, abiotic and renewable
Biotic - Living
Abiotic - Non-living
Renewable - A resource that can be reproduced naturally within a human lifetime
What ways have people exploited environments to obtain water, food and energy?
Extraction of fossil fuels
Fishing
Farming
Deforestation
How has fishing exploited the environment?
- Fish caught in nets + new tech like sonar locates them
- Overfishing leads to overexploitation of fish stocks where fish are caught faster than populations naturally reproduce
How has farming exploited the environment?
- We need increasing amounts of land to grow crops due to increasing population increasing demand for food
- This requires clearing land (DEFORESTATION), destroying habitats
- Eutrophication due to fish polluting rivers
How has deforestation exploited the environment?
- wood fuel is a main form of energy in developing countries
- population growth leads to overexploitation
- because trees are cut down faster than naturally replaced
How had extraction of fossil fuels exploited the environment?
- coal demand increased after industrial revolution
- population growth means more oil used for transport
- fossil fuels are non-renewable (finite), so over exploitation threatens our energy security
What are the fossil fuels?
Coal, oil, natural gas
In what ways has exploitation changed the environment?
Reduced biodiversity (overfishing + eutrophication)
Soil erosion (deforestation increases rain impact and surface runoff)
Reduced water quality(eutrophication + soil erosion runs into rivers)
Reduced air quality (less trees to absorb CO2 + fossil fuel combustion)
Where is forestry located? (globally)
Latitudinal belts containing forest biomes
Where are rocks and minerals located? (globally)
Determined by geology
Soil and agriculture distribution in the UK
South east = brown earth fertile soils + flat land for arable farming
North west = less fertile podzol soil + steep land for pastoral farming
Forestry distribution in the UK
Temperate deciduous forest and boreal forest in scottish highlands
Water supply distribution in the UK
1500 mm per year in north west
600mm per year in south east