Optimization strategies for improving irrigation water management of lower Jhelum canal
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Date
2015
Authors
Journal Title
Journal ISSN
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Publisher
Technical Journal,University of Engineering and Technology Taxila.
Abstract
The paper includes computing crop water
requirement, identification of problems and
optimization strategies for improved irrigation water
management of a canal command. Lower Jhelum
Canal (LJC) System was selected as a case study.
Possible strategies for optimization are enhancing
irrigation water productivity by high value and high
yield crops, adoption of resource conservation
interventions (RCIs) at the farm level, improving
irrigation system efficiency and its management.
Estimation of daily reference evapotranspiration of
LJC command was carried out by Penman Montieth -
2000 method and metrological data of Sargodha for the
period 1999 to 2010 was used. Crop water
requirements were computed from reference
evapotranspiration, crop coefficients and periods of
crops for existing cropping pattern. The comparison of
the crop water requirements and available water
supplies indicated shortage of more than 51% in Kharif
and 54% in Rabi seasons. The gap between
requirements and supplies is fulfilled by groundwater
in the command. The structural measures identified in
the present study for improving canal management
include rationalization of canal capacities in keeping
with the current water requirements and availability,
rehabilitation and remodeling of canal network and
lining of distributaries and minors in saline
groundwater areas. An array of measures and practices
identified for improved water management at the farm
level include: improvement and lining of watercourses,
proper farm design and layout, adoption of resource
conservation technologies involving laser land
leveling, zero tillage, and bed-furrow irrigation
method. Adopting proper cropping systems
considering land suitability and capacity building of
farming community in improved soil, crop and water
management technologies would enhance the water
productivity in an effective and sustainable manner.
Description
Keywords
Civil Engineering, Irrigation Management, Optimization Strategies, Reference Evapotranspiration, Canal Water Management, Lower Jhelum Canal
Citation
Rashid, M., Latif, A., Ghani, U., Ali, S., Khan, A., & Shabbir, F. (2015). Optimization Strategies for Improving Irrigation Water Management of Lower Jhelum Canal. Technical Journal,University of Engineering and Technology Taxila. 20(1), 81.(Muhammad Usman Rashid)(HEC Recognized Y Category)