Human Causes and/or Accelerators of Drought
- Created by: Crystal Parsons
- Created on: 08-06-20 12:10
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- Human Causes and/or Accelerators of Drought
- Lack of care
- Sometimes, people do not use water appropiately when it is available.
- People do not store excess water meaning drought is worse.
- De-forestation
- Bush fires remove vegetation which lessens rain and causes more drought and then more bushfires.
- The lack of ground cover when trees are removed means that shallow water is evaporated.
- Tree roots hold soil particles together.
- When removed the soil is looser, reducing the soil's ability to hold water and it dries out.
- The soil is vulnerable to wind blowing it away when de-forestation occurs.
- Desertification can happen and then drought is constant.
- Trees transport water into the atmosphere by transpiration. This creates clouds and then rain.
- When deforestation occurs this ends and there can be permanent drying.
- Dam-building
- Dams create reservoirs. At one side there is lots of water but on the other side the lack of water may cause or accelerate drought.
- Using excess water and intensive methods
- Over-grazing land exposes soil to wind erosion.
- Over-farming or intensive farming causes drought to have a worse impact.
- Sometimes drought means that you have to irrigate crops more. Or, a particular crop may need more water..
- Whatever reason, this is removing water from the area.
- And long-term drought is possible and it will have bigger impacts.
- Whatever reason, this is removing water from the area.
- Lack of care
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