ecosystems
- Created by: isaacjgell
- Created on: 22-03-14 11:22
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- ecosystems B7
- stable ecosytem
- rainforest
- losses and gains balanced
- water out - rivers;
- water in - rainfall
- losses and gains balanced
- vegetation
- prevents soil erosion
- leaves protect soil from direct rainfall
- prevents extremes of temperature
- promotes cloud formation
- rainforest
- human impact
- unbalance
- eutrophication - nitrates added by farmers
- biomass - over fishing, unsustainable timber harvesting
- clearing vegetation
- reduces biodiversity
- increases soil erosion
- desrtification
- non-recyclable waste
- heavy metals - mercury
- build up to harmful levels
- bioaccumulation
- build up to harmful levels
- heavy metals - mercury
- not closed loop systems
- non-recyclable waste
- heavy metals - mercury
- build up to harmful levels
- bioaccumulation
- build up to harmful levels
- heavy metals - mercury
- fossil fuels
- produces waste emissions
- carbon oxides
- fossil sunlight energy
- decay of organisms
- produces waste emissions
- non-recyclable waste
- unbalance
- managing ecosystems
- humans rely on ecosystems
- Fertile soil
- clean air, water, food
- pollination
- using resources sustainably
- sustainability
- meeting needs without harming the environment
- allow future generations to meet their needs
- meeting needs without harming the environment
- replace resources at a safe rate
- planting new trees
- fishing quotas
- sustainability
- sunlight is a sustainable source
- cannot be used up by human activity
- natural ecosystems
- photosynthesis
- sustainable agaculture
- powering equipment
- conflicting with community needs
- decisions
- producing more at the expense of the ecosystem
- desertification
- producing more at the expense of the ecosystem
- decisions
- humans rely on ecosystems
- stable ecosytem
- decay of organisms
- replace resources at a safe rate
- planting new trees
- fishing quotas
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