Water Budgets
- Created by: eviedeehan
- Created on: 08-03-24 12:25
View mindmap
- Water Budget
- limited water for human use
- only 2.5% of Earth's water is freshwater and 1% accessible for direct human use
- access and quality of water differ depending on your location in the world
- only 2.5% of Earth's water is freshwater and 1% accessible for direct human use
- water store residence time
- found in the oceans is stored there for longer than the short amount of time that water is held in the atmosphere
- non-renewable stores - fossil water is the non-renewable untouched freshwater stores
- e.g beneath deserts and polar areas - technology is allowing us to access more of this water e.g oil drilling
- polar hydrology
- polar area is also referred to as the cryosphere
- very little vegetation
- frozen in winter but thaws in summer and increase surface runoff - more evaporation
- ice and soils thaw, biogenic gases are released into the atmosphere
- tropical hydrology
- high density vegetation - 50% of precipitation returned via evapotranspiration
- rainforests are able to generate their own water cycle due to convectional rainfall
- where the forest floor is warm and so air heats up and expands, rises and condenses into clouds
- deforestation reduces evapotranspiration reduces precipitation levels - have to flow through rivers etc takes longer to cycle through
- vegetation is crucial for convectional rainfall
- rainfall is essential for all rainforest life
- limited water for human use
Comments
No comments have yet been made