Case Study Watersupply By Anita Yadav

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Studies on Canal Water Supply, Total Water Availability, Water Demand and Water Utilization Pattern in Khetawali Distributory of Indira Gandhi Nahar Pariyojana

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  • Dear Ms Yadav -
    Do you have any information on the availability of water for power plants and how the flows affect power generation?
    Prakash
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Case Study Watersupply By Anita Yadav

  1. 1. Presentation on Case Study Studies on Canal Water Supply, Total Water Availability, Water Demand and Water Utilization Pattern in Khetawali Distributory of Indira Gandhi Nahar Pariyojana
  2. 2. Presented By Anita Yadav Department of Geography, Government Boys College, Sriganganagar – 335 001
  3. 3. IGNP-An Introduction <ul><li>One of the world’s biggest canal system. </li></ul><ul><li>Covers 7 Districts of Rajasthan. </li></ul><ul><li>Very Erratic rainfall between 100-400mm. </li></ul><ul><li>The water in the region is very low & Saline. </li></ul>
  4. 4. IGNP- The Promise Fulfilled <ul><li>Changed traditional Demographic structure, Culture & Environment. </li></ul><ul><li>Traditional crops like moth beans, pearl millets were replaced by cotton, paddy, wheat, mustard. </li></ul><ul><li>Spectacular rise in food grain production. </li></ul>
  5. 5. IGNP- The Present Scenario <ul><li>Overall irrigation efficiency is less then 40%. </li></ul><ul><li>Problem of water logging, salinity increased. </li></ul><ul><li>Inadequate management of water system. </li></ul><ul><li>Lack of coordination between water managers and agriculturists. </li></ul>
  6. 6. What Went Wrong ? Water availability, Water Demand Gap in Demand & Supply Water utilization pattern of Crops
  7. 7. The Study-Methods & Material <ul><li>Area – Khetawali Distributory. </li></ul><ul><li>Period – 10 years (1994-2004). </li></ul><ul><li>All 24 outlets including its two minors namely, Khetawali Minor, Amarpura Minor. </li></ul>
  8. 8. Methods & Material….contd. <ul><li>Design Discharge – Khetawali Distributory. </li></ul><ul><li>Water utilization-- Crop Area/Water requirement of a Crop. </li></ul><ul><li>Relative water Supply (RWS) </li></ul><ul><li>RWS= (IR+RN)/ Et +S&P) </li></ul><ul><li>where IR= mean irrigation application (mm/day), </li></ul><ul><li>RN= mean rainfall (mm/day), Et = mean evapotranspiration (mm/day) and S&P = seepage and deep percolation (mm/day) </li></ul>
  9. 9. Results & Discussion <ul><li>Rainfall pattern in the command of KWD </li></ul>
  10. 10. Results & Discussion <ul><li>Month wise Canal flowing period of KWD in different years </li></ul>
  11. 11. Results & Discussion <ul><li>Cropped area (hectares) during Kharif in different systems of KWD </li></ul>
  12. 12. Results & Discussion <ul><li>Cropped area (hectares)during Rabi in different systems of KWD </li></ul>
  13. 13. Results & Discussion <ul><li>Water utilization by major Kharif crops </li></ul>
  14. 14. Results & Discussion <ul><li>Water utilization by major Rabi crops </li></ul>
  15. 15. Results & Discussion <ul><li>Relative water supply in KWD system during Kharif season </li></ul>
  16. 16. Results & Discussion <ul><li>Relative water supply in KWD system during Rabi season </li></ul>
  17. 17. Conclusion <ul><li>Water supply was less than crop water demand in both the seasons over the years. </li></ul><ul><li>American cotton during Kharif may be replaced by less water requiring crops. </li></ul><ul><li>Wheat during Rabi may be replaced by mustard and gram. </li></ul><ul><li>Crop diversification for sustained crop production. </li></ul>
  18. 18. Thanks Online version available at

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