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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The effective management of land and water resources will drastically reduce the human miseries. Explain.
Next question on this syllabus topic (2016 · Q15). 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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