2008 dird pune-water-logging

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Field Training at DIRD, PuneBy-

Er. Pravin KolheEr. Jaywant ShindeEr. Sandeep NalwadeEr. Bapusaheb GadeEr. Vijaykumar ThoratEr. I.M. Chisti

25 Jan 2008

1


Content Introduction Inauguration and

Lectures Site Visit and problem

identification Tests in lab Design Schemes and

remedies

2


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


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, IRD.

4


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


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


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


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


Water Logging We observed 18

wells in the given catchment and collected 2 well water samples.

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Field Visit: Salinity Salts can be

observed on soil.

10


Field Visit: Crop Damage Damaged crops

are also observed at site

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Field Visit: Sample Collection 24 samples of soil

were collected from 6 auger holes at following depths-

1. 0-20 cm2. 20-40cm3. 40-80cm4. 80-120cm

12


Tests on Soil and water Samples Tests on soil-

EC: Electrical Conductivity

pH Hydraulic

Conductivity Saturation Mechanical Analysis

Tests on water- EC pH

13


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.

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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


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

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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


Special Thanks to…18

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

2008 dird pune-water-logging

Technology

Transcript of 2008 dird pune-water-logging