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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
  2. 2. Content  Introduction  Inauguration and Lectures  Site Visit and problem identification  Tests in lab  Design Schemes and remedies 2 PPT Downloaded from
  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
  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
  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
  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
  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
  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
  9. 9. Water Logging  We observed 18 wells in the given catchment and collected 2 well water samples. 9 PPT Downloaded from
  10. 10. Field Visit: Salinity  Salts can be observed on soil. 10 PPT Downloaded from
  11. 11. Field Visit: Crop Damage  Damaged crops are also observed at site 11 PPT Downloaded from
  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
  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
  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
  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
  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
  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
  18. 18. Special Thanks to… 18 PPT Downloaded from 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 19 PPT Downloaded from