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Improving Conveyance Efficiency through Canal Lining in Command Area: A Case Study

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Title Improving Conveyance Efficiency through Canal Lining in Command Area: A Case Study
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Creator Thokal, R.T., Jadhav, P.B., Mane, M.S., Bhange, H.N. and Kale, S.R.
 
Subject Conveyance Loss, Conveyance Efficiency, Lined, Unlined Canal Sections.
 
Description Not Available
Abstract – Conveyance losses from lined and unlined
sections of canal irrigation network were determined under
existing situation and the scenarios for different management
strategy were developed to utilize saved water for irrigation.
Panchnadi Minor Irrigation Project was taken as a case
study. The study revealed that overall efficiencies of the lined
and unlined sections of main canal and unlined field channels
under existing condition were 75.1, 52.3 and 34.8%,
respectively. Conveyance losses through canal network of the
command were 0.97 Mm3
amounting to about 67% of the
total live storage. The study also indicated that 0.263 Mm3
water can be saved due to conversion of unlined sections of
main canal water and 0.113 Mm3
can be saved through
conversion of unlined field channels into lined sections. With
these savings, about 30 and 19 ha additional area can be
brought under irrigation by keeping existing cropping
pattern unaltered. The conveyance efficiency can be
improved to 75 per cent from the present efficiency. Water
saving to the tune of 0.65 and 0.17 Mm3
can be achieved
through conversion of existing main canal sections and field
channels, through which an additional area 73.3 and 19.3 ha
additional area can be irrigated. Thus, total water saving of
0.82 Mm3
can be achieved and 92.6 ha additional area can be
brought under irrigation.
The scenarios were developed by considering the area
additional area distributed among the first three highest
benefiting crops like banana, watermelon and chilli using
Aquacrop model developed by FAO. The gross water
allocation was reduced about 26% and 57% while the project
net benefit can be increased by 3.3 times (78.6 lakh) and 6
times (141.1 lakh) more than projected benefit (Rs. 23.67
lakh) under existing conditions when unlined canal sections is
converted into lined sections or when whole canal network is
replaced by closed conduit.
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Date 2019-12-10T04:08:28Z
2019-12-10T04:08:28Z
2013
 
Type Book
 
Identifier Thokal, R.T., Jadhav, P.B., Mane, M.S., Bhange, H.N. and Kale, S.R. 2013. Improving Conveyance Efficiency through Canal Lining in Command Area: A Case Study. Book:Sustainable Water Resources Development and Management. 397-404.
ISSN: 2277 – 5668
http://krishi.icar.gov.in/jspui/handle/123456789/28891
 
Language English
 
Relation Not Available;
 
Publisher IJEIR