Economic Optimization of Conjunctive Use of Surface Water and Groundwater at the Basin Scale

Pulido-Velázquez, Manuel; Andreu, Joaquín; Sahuquillo, Andrés

doi:10.1061/(asce)0733-9496(2006)132:6(454)

Cited by 149 publications

(76 citation statements)

References 27 publications

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“…Usually this approach is used in regional agriculturalmanagement problems (Bredehoeft and Young 1983;Lefkoff and Gorelick 1990;McCarl et al 1999;Pulido-Velazquez et al 2006) or in large multipurpose regional water supply systems, for example in California PulidoVelazquez et al 2004). The objective function is often defined as maximizing the total economic value of water allocation over time, so that the model will explore the optimal distribution of resources in space and time across the different competing sectors.…”

Section: Hydraulic Management Versus Policy-allocation Modelsmentioning

confidence: 99%

“…A third approach for groundwater flow modeling in basinwide management models is the Eigenvalue Method (Sahuquillo 1983;Andreu and Sahuquillo 1987), in which piezometric heads, flux vectors, and surface and groundwater interactions are obtained by explicit state equations. Unlike the 'embedding method', only the equations that define the control or state variables are loaded into the sets of constraints of the optimization model to simulate groundwater flows, offering computational advantages for the integration of linear distributed-parameter groundwater simulation models within complex conjunctive use models over a long time horizon (Andreu and Sahuquillo 1987;Pulido-Velazquez et al 2006, 2007a. The Embedded Multireservoir Method also allows quantifying stream-aquifer interaction by simple and operational explicit state equations (Pulido-Velazquez et al 2005).…”

Section: Representing Groundwater and Stream-aquifer Interactionmentioning

confidence: 99%

“…Pulido-Velazquez et al (2002) examined different conjunctive use management alternatives for the system in a detailed simulation study. An integrated hydrologic- economic modeling framework for optimizing conjunctive use of surface and groundwater has also been developed for the Adra-Campo de Dalias system (Pulido-Velazquez et al 2006. Integrated river basin modeling with distributed groundwater simulation and dynamic stream-aquifer interaction allows a more realistic representation of conjunctive use and the associated economic results.…”

Section: Economically Optimal Cu In the Adra-campo De Daliasmentioning

confidence: 99%

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Hydroeconomic Models as Decision Support Tools for Conjunctive Management of Surface and Groundwater

Pulido-Velázquez

Marques

Harou

et al. 2016

Integrated Groundwater Management

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Conjunctive use (CU) of surface and groundwater storage and supplies is essential for integrated water management. It is also a key strategy for supporting groundwater-dependent ecosystems, and for adapting water systems to future climate and land use changes. CU has become increasingly sophisticated and integrated with other innovative and traditional water management techniques, such as water transfers, water reuse, demand management, and aquifer remediation. CU adds value for society (increasing average yield and reliability) but can also induce costs to some parties, such as damaging senior water rights of surface water users when pumping from the aquifer reduces streamflow. Groundwater overexploitation also can produce a host of undesirable economic and environmental impacts. Successful CU implementation typically requires changes in infrastructure and operations, but also changes in institutions and institutional arrangements to offset potential third party costs and protect ecosystems. This chapter analyses first the management and economic implications of CU,

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Section: Hydraulic Management Versus Policy-allocation Modelsmentioning

confidence: 99%

Section: Representing Groundwater and Stream-aquifer Interactionmentioning

confidence: 99%

Section: Economically Optimal Cu In the Adra-campo De Daliasmentioning

confidence: 99%

See 1 more Smart Citation

Hydroeconomic Models as Decision Support Tools for Conjunctive Management of Surface and Groundwater

Pulido-Velázquez

Marques

Harou

et al. 2016

Integrated Groundwater Management

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show abstract

“…The resulting MROC can be used to obtain an indicator of the resource/scarcity opportunity cost 187 (Pulido-Velazquez et al 2006 andHeinz et al 2007). According to the economic theory, an 188 optimal efficient water pricing policy would have to include this resource opportunity cost 189 component, so that signals of water scarcity and the resource value are sent to the users.…”

Section: Mroc Assessment Using Economic Optimization 176mentioning

confidence: 99%

“…The simulation will yield 233 time series of flow, storage, delivery and water supply deficit (convertible into scarcity costs) 234 and reliability for all the system over the simulated time horizon. Herein, scarcity cost at 235 each water use (demand) is defined as the benefit forgone when deliveries are less than the 236 maximum demanded by each user (Newlin et al 2002;Pulido-Velazquez et al 2006). 237…”

Section: Including Basinwide Mroc 211mentioning

confidence: 99%

Design of Efficient Water Pricing Policies Integrating Basinwide Resource Opportunity Costs

Pulido-Velázquez

Alvarez-Mendiola

Andreu

2013

J. Water Resour. Plann. Manage.

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4By ignoring the opportunity cost of water use, water is undervalued, which can lead to significant 5 errors in investments and water allocation decisions. The marginal resource opportunity cost 6 (MROC) varies in time and space, as resource availability, demands, and users' WTP vary. This 7 spatial and temporal variability can only be captured by basinwide hydro-economic models 8 integrating water demands and environmental requirements, resources, infrastructure, and 9 operational and institutional restrictions. This paper presents a method for the simulation of water 10 pricing policies linked to water availability, and the design of efficient pricing policies that 11 incorporate the basinwide marginal value of water. Two approaches were applied: priority-based 12 simulation and economic optimization. The improvement in economic efficiency was assessed by 13 comparing the results from simulation of the current system operation and the pricing schedule. 14 The difference between the benefits for the simulated current management and the upper bound 15 benefits from optimization indicates the maximum gap that could be bridged with pricing. In the 16 application to a synthetic case, a storage-dependent step pricing schedule derived from average 17 MROC values led to benefits that capture 80% of the gap of net benefits between management 18 without pricing and the economically optimal management. Different pricing policies were 19 tested, depending not only on reservoir storage but also on previous inflows. The results show 20 that the method is useful for designing pricing policies that enhance the economic benefits, 21 leading to more efficient resource allocations over time and across the competing uses. 22

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A hydroeconomic modeling framework for optimal integrated management of forest and water

2016

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Forests play a determinant role in the hydrologic cycle, with water being the most important ecosystem service they provide in semiarid regions. However, this contribution is usually neither quantified nor explicitly valued. The aim of this study is to develop a novel hydroeconomic modeling framework for assessing and designing the optimal integrated forest and water management for forested catchments. The optimization model explicitly integrates changes in water yield in the stands (increase in groundwater recharge) induced by forest management and the value of the additional water provided to the system. The model determines the optimal schedule of silvicultural interventions in the stands of the catchment in order to maximize the total net benefit in the system. Canopy cover and biomass evolution over time were simulated using growth and yield allometric equations specific for the species in Mediterranean conditions. Silvicultural operation costs according to stand density and canopy cover were modeled using local cost databases. Groundwater recharge was simulated using HYDRUS, calibrated and validated with data from the experimental plots. In order to illustrate the presented modeling framework, a case study was carried out in a planted pine forest (Pinus halepensis Mill.) located in south-western Valencia province (Spain). The optimized scenario increased groundwater recharge. This novel modeling framework can be used in the design of a ''payment for environmental services'' scheme in which water beneficiaries could contribute to fund and promote efficient forest management operations.

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Economic Optimization of Conjunctive Use of Surface Water and Groundwater at the Basin Scale

Cited by 149 publications

References 27 publications

Hydroeconomic Models as Decision Support Tools for Conjunctive Management of Surface and Groundwater

Hydroeconomic Models as Decision Support Tools for Conjunctive Management of Surface and Groundwater

Design of Efficient Water Pricing Policies Integrating Basinwide Resource Opportunity Costs

A hydroeconomic modeling framework for optimal integrated management of forest and water

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