Physical and human factors affecting change in the water cycle
- Created by: Lakeishacorbett
- Created on: 05-04-17 11:32
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- Human and Physical Changes in the Water Cycle
- Human
- Urbanisation- Water cannot infiltrate which increases overland flow and can cause flooding (STORE OVERFLOW)
- Farmers control local water cycle via lan drainage and irrigation.
- Water abstraction-From rivers and groundwater. For irrigation, industry and domestic.
- Can become depleted if level below water table contaminated with Salt water eg Chalk Aquifer London.
- Low flow conditions in rivers affects ecosystems.
- Can become depleted if level below water table contaminated with Salt water eg Chalk Aquifer London.
- Physical
- Drought due to El Nino and La Nina.
- Vegetation dies back or is destroyed by fire: reduces transpiration interception and infiltration.
- Look at California Drought
- UK Summer: less rainfall more storms, more vegetation means more interception and transpiration. Low river flow due to high temperatures.
- UK Winter: More rainfall, less vegetation less transpiration&interception. High flow. Low temp means less evaporation.
- UK Winter: More rainfall, less vegetation less transpiration&interception. High flow. Low temp means less evaporation.
- Drought due to El Nino and La Nina.
- Human
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