57397-7011-water resources development & utilization in western india

7/28/2019 57397-7011-Water Resources Development & Utilization in Western India

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WATER RESOURCES

DEVELOPMENT & UTILIZATION

IN WESTERN INDIA

ARAVAZHI.T

BTE-06-002


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Indias Water Budget

Annual precipitation - 4000 km3

Annual flow per year for the Indian rivers -1953 km3.

Annual replenishable groundwater resources -432 km3

Annual utilizable surface water 690 km3 per year

Annual groundwater resources 396 km3 per year

Cherrapunji -Highest Rainfall in the world


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Western India


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Major Rivers Of Western India

Name of the River Length(km) Catchment Area(sq km)

Sabarmati 371 21674

Mahi 583 34842

Narmada 1312 98796

Tapti 724 65145

Mahanadi 851 141589

Godavari 1465 312812


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Basin Wise Average Flow And Utilizable Water

Name of the River Average annual flow

(km/yr)

Utilizable flow

(km/yr)

Sabarmati 3.81 3.81

Mahi 11.02 3.1

Narmada 45.64 34.5

Tapti 14.88 14.5

Mahanadi 28.48 18.3

Godavari 110.54 76.3


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Rainfall Conditions

Annual rainfall of less than 500 mm is experienced in western

Rajasthan and adjoining parts of Gujarat.

Some parts of Western Rajastan receives annual rainfall of less

than 100 mm.

Nearly 80 per cent of the land in the Konkan, which receives thehighest rainfall on the West Coast.


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Average Annual Rainfall Of The Western

States

State Meteorological

Divisions

Average annual

rainfall (mm)

Gujarat Gujarat region

Saurashtra and Kachchh

1,107

578

Goa Konkan and Goa 3,005

Maharashtra Konkan and Goa

Madhya Maharashtra

MarathwadaVidarbha

3,005

901

882

1,034

Rajasthan West Rajasthan

East Rajasthan

313

675


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Irrigation Sources

Name of

the state

Canals wells Tanks Other

Sources

(%)

Total gross

irrigated Area

(1000 ha)No % No % No %

Goa 12 33 - - 24 67 - 36

Gujarat 720 20 2871 79 35 1 - 3643

Maharastra 521 - - - 321 - - 3002

Rajastan 2200 33 4266 63 218 3 1 6743

D & N

haveli (UT)

1 3 34 - - - 25 4


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Irrigation Projects

Name of the state Major irrigation projects Medium Irrigation

projects

Goa 1 2

Gujarat 22 132

Maharastra 66 273

Rajastan 10 101


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Recharge Of Aquifers

In western indias unconfined alluvial aquifers, it is being

increasingly realized that groundwater depletion can be

countered only by importing surface water.

Sardar Sarovar Project (SSP)

The purpose of the project is to identify reliable sources of

water of sufficient quantity and quality to supply.


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Gross Irrigated Area

State Geographical

area

(m ha)

Gross Area

under

cultivation

(m ha)

Gross

area

irrigated

(m ha)

Gross area

irrigated to

gross area

cultivated (%)

Net area

irrigated

(m ha)

Goa 0.37 0.165 0.036 21.1 0.023

Gujarat 19.602 10.082 3.655 36.253 3.002

Maharastra 30.771 21.327 3.149 14.765 2.567

Rajastan 34.24 19.672 6.361 2.335 5.232

D & N

haveli

0.049 0.027 0.005 18.519 0.005

Daman &

Diu

0.011 0.005 0.001 20 0.001


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State wise Ultimate Irrigation Potential &

Potential Created

state Ultimate potetial % of PC to UIP

MMI MI-Surface MI-

Groundwater

MMI MI-

Surface

MI-

Groundwater

Gujarat 3000 347 2756 47.67 134.87 87.59

Maharashtra 4100 1200 3652 79.00 141.17 97.37

Rajastan 2750 600 1778 90.25 34.83 260.46


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State Wise Growth Rate In Groundwater

IrrigatedArea(1960-1 to 2002-3)

State 1960-1 to 1980-1 1980-1 to 2002-03 1960-1 to 2002-3

Gujarat 6.50 2.35 4.05

Maharashtra 3.35 3.18 2.79

Rajasthan 3.24 4.22 3.55


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Reference

http://www.ias.ac.in/currsci/sep102005/794.pdf

http://www.iwrs.in/iwr.htm

A.M.Michael Irrigation theory & practice

A. Narayanamoorthy Trends in Irrigated Area in India: 1950-51

to 2002-03
http://www.ias.ac.in/currsci/sep102005/794.pdfhttp://www.iwrs.in/iwr.htmhttp://www.iwrs.in/iwr.htmhttp://www.ias.ac.in/currsci/sep102005/794.pdf


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57397-7011-water resources development & utilization in western india

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