نتایج جستجو برای: water demand supply

تعداد نتایج: 804624  

2006
Roberto Garcia Alcubilla Jay R. Lund

Stochastic optimization is used to estimate the willingness-to-pay WTP of individual households and groups of households for changes in a combination of probabilistic water supply reliability and retail price of water. By modeling the financial and “perceived” costs of implementing longand short-term conservation options and assuming rational expected value cost minimizing behavior, economic de...

Journal: :international journal of agricultural management and development 2013
gholamreza zamanian mehdi jafari shahram saeedian

the scarcity of water resources and supply resources limitation, have caused an increasing gap between water supply and demand specially in recent decades in almost all regions of the globe. one of the best known solutions proposed by the economists is using the different water pricing approaches thereby obtaining the optimal allocation and social justice. to this purpose, this paper uses the p...

2017
Won-Ho Nam Taegon Kim Eun-Mi Hong Jin-Yong Choi

Reservoirs are principal water resources that supply irrigation water to paddy fields and play an important role in water resources management in South Korea. For optimal irrigation reservoir operation and management, it is necessary to determine the duration of irrigation water shortages. Management of reservoir operation and irrigation scheduling should take into consideration essential varia...

2017
Yuan-Hua Li Ching-Pin Tung Pei-Yuan Chen

Adaptation measures are necessary for reducing the impacts of extreme climatic events, especially at the community scale. Constructed wetlands and rainwater harvesting systems are commonly used as on-site water supply systems for distributed adaptation. The purpose of this study is to build a community water supply model and to evaluate the performance of low impact development (LID) modules as...

2010
JAVAID A. TARIQ

The study was focused on variability in discharges on equity of water distribution of outlets along the secondary canal. Hydraulic performance was evaluated based on delivery performance ratio (DPR), adequacy based on relative water supply (RWS) and variability in discharges using coefficient of variation (CVs). Off take and all outlets were calibrated by area velocity method. During study peri...

Journal: :The Science of the total environment 2016
Vikas Kumar Luis Del Vasto-Terrientes Aida Valls Marta Schuhmacher

The regional water allocation planning is one of those complex decision problems where holistic approach to water supply management considering different criteria would be valuable. However, multi-criteria decision making with diverse indicators measured on different scales and uncertainty levels is difficult to solve. Objective of this paper is to develop scenarios for the future imbalances in...

2016
Kerstin Damerau Anthony G. Patt Oscar P.R. van Vliet

The sufficient supply of food and energy requires large amounts of fresh water. Mainly required for irrigation, but also processing and cooling purposes, water is one of the essential resources in both sectors. Rising global population numbers and economic development could likely cause an increase in natural resource demand over the coming decades, while at the same time climate change might l...

Journal: :international journal of agricultural science and research 2011
sh. mokhtari h. babazadeh h. sedghi f. kaveh

iran is among the world’s arid and semi-arid regions and its demand for water has been increased due topopulation growth, urbanization and the development the economic sectors (industrial and agricultural). inmany of these regions, the lack of planning and the unauthorized use of resources have led to excessiveexploitation and a lower level of groundwater. the usable groundwater for the country...

Journal: :Environmental Modelling and Software 2013
Evangelos Rozos Christos Makropoulos

The continuous expansion of urban areas is associated with increased water demand, both for domestic and non-domestic uses. To cover this additional demand, centralised infrastructure, such as water supply and distribution networks tend to become more and more complicated and are eventually over-extended with adverse effects on their reliability. To address this, there exist two main strategies...

Awareness of water demand is of particular importance for its policy in urban management. Predicting water demand in the future will allow managers to take the necessary measures regarding sustainable water supply, given the constraints and crises ahead. The purpose of this study is to compare multivariate regression and ARIMA models to predict water demand in Mashhad. In this study, first, the...

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