Groundwater Management: Groundwater Depletion and Recharge Potential
1
GROUND WATER MANAGEMENT
(Recharge Potential and Governance) (2009-13) Drainage Section Syed Javed Sultan, Muhammad Saeed Dr. Muhammad Basharat, Dilbar Hassan
OBJECTIVES
•Identify areas of groundwater depletion and recharge potential; and
•Develop conjunctive water management options to be implemented for long term sustainability of the resources.
2
BACKGROUND
• Irrigation systems changed significantly, now increasingly dependent on groundwater. • Simultaneously, groundwater depletion and waterlogging. • Existing SW and GW institutions need to reorient while moving towards groundwater management; • Water availability1000 m3/capita, likely to dip further i.e. 700 in 2025 and 500 in 2045; • GW Depletion forcing conversion of centrifugal to turbine pumps; • Cost of installing tubewells with DTW more than 24 m is 7 times and pumping cost 3 times higher than if DTW is within 6 m; and • Up-coning/lateral saline intrusion hazards.
Study area & the approach
Work Done So Far
• WTD data of IBIS was analyzed and depleted areas identified; • Recharge potential in different irrigated areas was estimated; • Surface and groundwater analysis for LBDC, including estimation of groundwater pumping in the area; • Groundwater management approaches adopted abroad studied; • Groundwater management opinion survey; • Irrigation system operations studied with necessary modifications required for better groundwater management; • Spatial variation in water supply and demand across canal commands in Punjab studied; • Possibility & Extent of Saline Intrusion • Assessment of recharge potential in Sukh-Beas is progress; • Published two blue reports, three yellow reports, four papers published in HEC approved journals (2-International/2-national journals), six research papers in PE Congress, and another submitted to UET Lahore Journal.
180
rise @ cm/yr
Groundwater elevation (m) 170 160 19.5 32.9
fall @ cm/yr
14.3 27.1
CL_VIII/2
CL_VIII/4 CL_XII/4
GROUND WATER MANAGEMENT
(Recharge Potential and Governance) (2009-13) Drainage Section Syed Javed Sultan, Muhammad Saeed Dr. Muhammad Basharat, Dilbar Hassan
OBJECTIVES
•Identify areas of groundwater depletion and recharge potential; and
•Develop conjunctive water management options to be implemented for long term sustainability of the resources.
2
BACKGROUND
• Irrigation systems changed significantly, now increasingly dependent on groundwater. • Simultaneously, groundwater depletion and waterlogging. • Existing SW and GW institutions need to reorient while moving towards groundwater management; • Water availability1000 m3/capita, likely to dip further i.e. 700 in 2025 and 500 in 2045; • GW Depletion forcing conversion of centrifugal to turbine pumps; • Cost of installing tubewells with DTW more than 24 m is 7 times and pumping cost 3 times higher than if DTW is within 6 m; and • Up-coning/lateral saline intrusion hazards.
Study area & the approach
Work Done So Far
• WTD data of IBIS was analyzed and depleted areas identified; • Recharge potential in different irrigated areas was estimated; • Surface and groundwater analysis for LBDC, including estimation of groundwater pumping in the area; • Groundwater management approaches adopted abroad studied; • Groundwater management opinion survey; • Irrigation system operations studied with necessary modifications required for better groundwater management; • Spatial variation in water supply and demand across canal commands in Punjab studied; • Possibility & Extent of Saline Intrusion • Assessment of recharge potential in Sukh-Beas is progress; • Published two blue reports, three yellow reports, four papers published in HEC approved journals (2-International/2-national journals), six research papers in PE Congress, and another submitted to UET Lahore Journal.
180
rise @ cm/yr
Groundwater elevation (m) 170 160 19.5 32.9
fall @ cm/yr
14.3 27.1
CL_VIII/2
CL_VIII/4 CL_XII/4