decreasing water deficit
- Created by: Mae0987
- Created on: 20-05-18 11:34
View mindmap
- decreasing water deficit
- dams
- walls built across rivers creating reservoir
- can provide HEP
- backup when low precipitation
- expensive to build
- destroys landscape
- eg. 3 gorges dam China
- walls built across rivers creating reservoir
- desalinisation plant
- removes salt from sea water
- countries by coast easily get water
- takes up space
- can decrease tourism
- removes salt from sea water
- storing water
- water lost through evaporation
- storing water underground means less water lost
- less water lost
- only permeable rocks can store water
- eg. oklahoma
- water transfer schemes
- from surplus to deficit through pipes
- big cities gain more suply
- can interfere with river flow
- eg. sunderland
- from surplus to deficit through pipes
- Lesotho Highland water project
- background info
- lesotho country within South Africa
- lesotho= surplus South Africa= deficit
- transferres from orange river
- by 202 there will be 200km of pipes
- positives
- south africa
- provides water despite droughts
- safe water to 10% population
- Lesotho
- income improves development
- 75% GDP
- provides HEP
- south africa
- negatives
- Lesotho
- corruption means money not spent right
- 30,000 relocated
- South Africs
- 40% water lost to leaks
- people struggle to pay higher taxes
- Lesotho
- background info
- sustainable supplies
- conservation: reducing unnecessary use eg. water meter
- management
- controlling use
- eg. training indians to record rainfall and plan irrigation
- recycling: sewage water used for nuclear plant cooling
- grey water: using bath and sink water etc to reuse
- local scheme
- hitosa, ethiopia
- 100 local taps and 150 agricultural from a spring
- managed by locals= no corruption
- pipes need repairing
- hitosa, ethiopia
- dams
Comments
No comments have yet been made