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2008 dird pune-water-logging

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2008 dird pune-water-logging

  1. 1. Field Training at DIRD, Pune By- Er. Pravin Kolhe Er. Jaywant Shinde Er. Sandeep Nalwade Er. Bapusaheb Gade Er. Vijaykumar Thorat Er. I.M. Chisti 25 Jan 2008 1 PPT Downloaded from http://www.pravinkolhe.com/
  2. 2. Content  Introduction  Inauguration and Lectures  Site Visit and problem identification  Tests in lab  Design Schemes and remedies 2 PPT Downloaded from http://www.pravinkolhe.com/
  3. 3. Introduction  As per schedule of training program we joined DIRD, Pune on 21st January 2008 to study about the drainage systems.  One week training ended on 25th January 2008. 3 PPT Downloaded from http://www.pravinkolhe.com/
  4. 4. Inauguration  Venue: C.C. Inglis Hall, DIRD Pune  Hon’ble Guest:  Er. K.M. Shah Saheb, Superintending Engineer and Director of DIRD,  Er. Giri Saheb, Superintending Engineer  Er. Shivaji Rajale, Executive Engineer, 4 PPT Downloaded from http://www.pravinkolhe.com/
  5. 5. Lecture: Land Drainage and Reclamation Technology  Er. Rajale saheb explained-  Types of stresses faced by crop  Diagnostic criteria of salt affected land and water.  Remedies for saline and water logged land 5 PPT Downloaded from http://www.pravinkolhe.com/
  6. 6. Lecture: DIRD Procedure and Practice  Shri. Kapare saheb explained about-  Activities of DIRD  Classification of salt affected and water affected area  Classification of drain  Future strategy 6 PPT Downloaded from http://www.pravinkolhe.com/
  7. 7. Lecture: Soil Survey Techniques for Irrigation Projects  Shri. Amritkar saheb explained-  Purpose of soil survey  Types of soil survey  Soil Series  Parameters of soil series-  Place/Location/Village  Soil Texture  IAR norms for depth  DIRD norms for depth  Slope classes  Erosion classes 7 PPT Downloaded from http://www.pravinkolhe.com/
  8. 8. Site Visit: Water logging  Site: ‘Additional Mandavgan Drainage scheme’, Ganegaon, Tal- Shirur.  Observations-  Well Water Level and sample collection  Soil sample collection  Drain discharge measurement 8 PPT Downloaded from http://www.pravinkolhe.com/
  9. 9. Water Logging  We observed 18 wells in the given catchment and collected 2 well water samples. 9 PPT Downloaded from http://www.pravinkolhe.com/
  10. 10. Field Visit: Salinity  Salts can be observed on soil. 10 PPT Downloaded from http://www.pravinkolhe.com/
  11. 11. Field Visit: Crop Damage  Damaged crops are also observed at site 11 PPT Downloaded from http://www.pravinkolhe.com/
  12. 12. Field Visit: Sample Collection  24 samples of soil were collected from 6 auger holes at following depths- 1. 0-20 cm 2. 20-40cm 3. 40-80cm 4. 80-120cm 12 PPT Downloaded from http://www.pravinkolhe.com/
  13. 13. Tests on Soil and water Samples  Tests on soil-  EC: Electrical Conductivity  pH  Hydraulic Conductivity  Saturation  Mechanical Analysis  Tests on water-  EC  pH 13 PPT Downloaded from http://www.pravinkolhe.com/
  14. 14. Test Results  It is observed that all the soil samples were saline. i.e. EC>3 and pH>8  The well and drain water is also saline with EC>3. 14 PPT Downloaded from http://www.pravinkolhe.com/
  15. 15. Demarcation of affected area  The points are marked on the given catchment map.  Based on EC values, contour lines were marked  The affected area is shown on the map  It is very difficult to demarcate the area with only 24 samples. The accuracy depends on the number of samples.  Remote sensing technique can be used to get more accurate results 15 PPT Downloaded from http://www.pravinkolhe.com/
  16. 16. Remedial Actions proposed  Preventive measures  Sprinkler and Drip Irrigation  Crop Pattern and crop rotation  Leakage Prevention from canal  Proper land slope and drainage arrangement  Curative measures  Cross drains  Controlling Water Table and Soil moisture  Soil Amendment  Soil leaching  Bio drainage 16 PPT Downloaded from http://www.pravinkolhe.com/
  17. 17. Remarks and future scope  Proper drainage is essential to avoid water logging  It is difficult to demarcate the area on map accurately.  Cross drains may be provided to reduce the discharge.  The adjoining land should be protected from water logging in future.  New techniques, like Remote sensing can be used to speed up work accurately.  Maintenance of existing drainage scheme is an important factor.  Cleaning of natural nalla.  Involvement of farmers. 17 PPT Downloaded from http://www.pravinkolhe.com/
  18. 18. Special Thanks to… 18 PPT Downloaded from http://www.pravinkolhe.com/ Er. K.M. Shah saheb, Superintending Engineer and Director, DIRD, Pune and Er. Giri Saheb, SE. Er. Kiran Joshi, Sectional Engineer Er. Shivaji Rajale Saheb, Executive Engineer, IRD
  19. 19. Thank You…! © Pravin Kolhe, 2008 http://www.pravinkolhe.com/ 19 PPT Downloaded from http://www.pravinkolhe.com/

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