Effects of Human Activities & Sustainability
- Created by: beth-marie2511
- Created on: 19-06-16 22:32
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- Agricultural Exploitation
- Reasons for Deforestation
- Wood for fuel and resources
- Building purposes
- Roads
- Farmland
- Grazing land for cattle
- Drainage Ditches & Wetlands
- Peat extraction reduces plant growth
- Causes a reduction in biodiversity because the drainage interferes with the water cycle
- Prevents water logged soil to improve soil aeration (O2)
- Improves rate of nitrification
- An attempt to prevent denitrification
- Pollution in drainage ditches
- Conflicts between Agriculture & Conservation
- Using the land destroys habitats
- This decreases bodiversity
- Increasing populations means more food required
- This leads to INTENSIVE farming
- Increasing usage of pesticides and herbicides to maximise crop yield
- Using the land destroys habitats
- Consequences of Deforestation
- Regional climate changes
- E.G. Water Cycle
- Destruction of habitats
- Decreases biodiversity
- Climate Change (global)
- The rate CO2 is removed from the atmosphere decreases
- Soil erosion
- Higher risk of lowlands flooding
- Extinction of Species
- Regional climate changes
- Forest Management
- Selective Cutting
- E.G. Larger trees coming to the end of their life to allow smaller trees to absorb more light
- For growth/ more nutrients etc.
- E.G. Larger trees coming to the end of their life to allow smaller trees to absorb more light
- Replanting/ Regeneration of Trees
- Trees are planted the optimum distance apart
- Sustainable because it preserves species
- Pest Control
- Rotation
- Certain areas are left for years for trees to mature and are then felled, while another area is then allowed to replenish itself
- Wardens
- Selective Cutting
- Reasons for Deforestation
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