Zusammenfassung der Ressource
2.1
- Models
- Simplifying complex processes
- Carbon cycle
- Hydrological cycle
- Systems- Set of interrelated components working towards a process"
- A series of....
- Components
- Stores
- e.g lake
- Flows
- e.g Stem Flow
- Characteristics of a system
- Inputs
- e.g precipitation
- Outputs
- e.g evaporation
- Flows
- Boundaries
- e.g water shed
- Types of systems
- Open
- Cascading
- Multiple open systems linking together
- Outputs of one system become inputs for the
next
- e.g Water Cycle
- Transfers of energy and matter
- e.g Ecosystem
- Closed
- Energy transfers
- No matter transfers
- Isolated
- no interaction outside boundaries
- Lab expriment
- Feedback
- Dynamic Equilibrium
- NO feedback
- Balance between inputs and outputs
- Stores stay the same
- e.g Glacier snow=melting
- Net gain = 0
- Positive
- Effects are amplified
- e.g Global temperature rising
- Negative
- Effects are reduced (nullified)
- e.g More plants grow due to the increase in CO2
in the atmosphere