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- W2321620695 abstract "Conjunctive use of water from different sources is considered to be a valuable tool to overcome the constraint of the surface and groundwater systems, if operated independently. The conjunctive use planning requires establishment of firm water supplies and their distribution, effect of water development and use on groundwater behaviour, allocation of water to different users based on economic returns and tolerance to salinity,and effect of saline water use on surface and groundwater salinities. Decisions regarding the development and allocation of water are complicated processes and are best attempted through modeling. This paper deals with formulation and application of groundwater hydraulic optimization and allocation models for planning the development and use of surface and groundwater in Lower Ghaggar Basin of Haryana,India. The problem of conjunctive water development and utilization planning has been dealt as a two-stage process. The first stage, deals with determination of optimal groundwater development, while the second stage, deals with water allocation to crops in a conjunctive use milieu. For hydraulic optimization, a steady state flow optimization model has been formulated to develop optimal groundwater pumping strategies. The model predicts the optimal pumping volumes and the resulting groundwater potentiometric surfaces. In association with a groundwater simulation model, it also makes possible to forecast the time frame in which groundwater table in different sub areas in a region, would attain steady state condition. The special features of the model are the inclusion of functions for streamaquifer interaction and direct evaporation from the ground watertable. For water allocation and economic optimization, a non-linear conjunctive water use-planning model is formulated. The model maximizes net benefits from water use of varying salinities through allocations to different crops and determines the optimal groundwater pumping for irrigation and drainage water disposal. Results of the application of the hydraulic optimization model show that there is considerable scope for augmenting the groundwater supply in areas adjoining the River Ghaggar by increasing stream-aquifer interaction. The present stream aquifer interaction in river cells is of the order of 16 ms, which can be increased to 26 ms with optimal pumping. The optimal potentiometric surfaces fall in the range of 184 to 214 m above MSL giving a water table depth of 4 to 22 m, thus ensuring against waterlogging and salinity development." @default.
- W2321620695 created "2016-06-24" @default.
- W2321620695 creator A5065943367 @default.
- W2321620695 date "2005-01-01" @default.
- W2321620695 modified "2023-09-27" @default.
- W2321620695 title "Application of hydraulic and economic optimization for planning conjunctive use of surface and saline ground water: a case study" @default.
- W2321620695 hasPublicationYear "2005" @default.
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