Revision summary
Monsoon floods can be stored in tanks, wetlands, aquifers, and reservoir cushions for later irrigation. Traditional spreading systems and Khadar recharge turn a short peak into rabi water. National waterways need that stored water and careful barrages to keep draught after the flood. Embankment-only control raises the bed and fails both goals. Sediment, ecological flow, and floodplain zoning make the conversion sustainable.
Model answer
Flow diagram
flowchart TD F[Monsoon flood peak] --> T[Tanks wetlands recharge] F --> R[Reservoir flood cushion] T --> I[Rabi irrigation wells] R --> I R --> N[Lean-season draught] N --> W[NW-1 NW-2 barges] Z[Floodplain zoning sediment] --> I Z --> W
Conclusion
- Combine tank–wetland recharge, honest reservoir rule curves, and maintained waterways; score success by rabi hectares and barge-days, not by kilometres of new bund.
Floods become a sustainable irrigation source when peaks are spread into tanks, aquifers, and rule-curved reservoirs, and they support all-weather navigation when that stored water keeps a fairway draught on national waterways. The method is living with the pulse of the monsoon river, not sealing it between rising embankments.
Quick related
Students also ask
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What characteristics can be assigned to monsoon climate that succeeds in feeding more than 50 percent of the world population residing in Monsoon Asia? (250 words).
Next question in the 2017 paper (Q17). View answer →
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Can large dams alone solve this?
They can store some peaks. Without tanks, recharge, sediment plans, and waterways maintenance, they neither irrigate fairly nor keep all-weather draught.
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Does navigation worsen floods?
Badly placed spurs and dredge spoil can. A fairway with zoning and honest hydrology need not, and it can justify keeping channels open.
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