What are the positives and negatives of flood irrigation?
Positives of flood irrigation:
- It is used in large irrigation systems
- Conveyance loses can be reduced.
- Evaporation loss
- Large amount of water is wasted.
Positives: -provides protection against floods -very few break downs -provides irrigation -provides water supply -improvement of navigation -provide electric power -mine waste retention -recreation Negatives: -ecosystems can be destroyed -expensive -produce much less energy -break in massive flash flood -corrosion may occur -fish may be damaged which causes population to decrease -changes in channel morphology -debris jammed in tributaries -increased sediment storage