Water management under drought conditions

Charalambos, Charalambous,

doi:10.1016/s0011-9164(01)00238-7

Cited by 13 publications

(6 citation statements)

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“…In essence, only close to 0.007 % of the planet's water is available for drinking, irrigation, industrial manufacturing and other purposes for the use of the approximate 7 billion inhabitants on the globe. Water shortage is commonly faced in arid regions such as in the Arabian Peninsula (Abdulrazzakrs, 1995), Jordan (Bdour et al 2009;Carr et al 2011), Mexico (Barker et al 2000), North Africa (Abufayed 2001), South Africa (Perret 2002), North China (Yang et al 2003) Cyprus (Charalambous 2001), Spain (Llamas and Martinez-Santos 2005) and others (Rogers 2008;Shannon et al 2008). The gap between supply and demand can be closed primarily by the following: (i) development of additional water sources and treatment of low quality waters to acceptable levels (Rogers 2008), and; (ii) improved management of available water resources.…”

Section: Water Shortagementioning

confidence: 99%

Water Allocation Between the Agricultural and the Municipal Sectors Under Scarcity: A Financial Approach Analysis

Braude

Hauser

Sinuany‐Stern

et al. 2015

Water Resour Manage

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A model examining the National Water Wealth (NWW) and its allocation between the municipal sector and the agricultural sector, where water value is defined as the present value of Water Rights, is presented. Five factors are considered: (i) uncertainty of water supply; (ii) population growth rate; (iii) the effect of time on NWW without new water production; (iv) agency costs, and; (v) production of new waters. The work is based on the model by Jensen and Meckling (J Finance Econ. 3:305-360, 1976), dealing with the effects of agency costs on the value of public companies. Agency costs are subject to conflicting interests between managers, shareholders and bondholders. In the water economy agency, costs stem from a divergence of interests between the government, the agricultural and the municipal sectors. Uncertainty of supply reduces water wealth of both sectors, with a stronger adverse impact on water wealth of the agricultural sector. Our model shows how production of new waters can Water Resour Manage (2015) 29:3481-3501 have contributive effects on national water wealth. The modeling demonstrates the option of reducing the overall uncertainty of water supply and production of new waters which leads to favorable effects on the national water wealth. AbbreviationsCpd t Agency costs of debt Cpg t Agency costs of owner's equity Cpt t Total agency costs Egwr t Expected groundwater recharge quantity F The extent of the Water Commissioner's lack of identification with the agricultural sector Fx Maximal F for each period Jr Constant ratio between the average discount rate for the two sectors (Rv t ) and the discount rate of the municipal sector (Rm t ) Lun t Relative uncertainty of supply imposed on the agricultural Nwh t It is Nww t including the present value of desalination Nww t National Water Wealth Nww t (Cpt t ) NWW assuming agency costs Pg Fixed positive rate of population growth Qh t Present value of desalination Qhy t Annual constant average quantities of water generated from desalination Qm t Water allocation for the municipal sector Rag t (Cpg t ) Discount rate of the agricultural sector assuming agency costs of owner's equity Ra t Discount rate of the agricultural sector Rf t Risk-free discount rate Rh t Discount rate of desalination Rm t Discount rate of the municipal sector Rm t (Cpd t ) Discount rate of the municipal sector assuming agency costs of debt Rv tWeighted average discount rate of the two sectors Rv t (Cpt t )Weighted average discount rate of the two sectors assuming agency costs Va constant quantity of water per period allocated to the agricultural sector from the period t+1 onwards Va(Cpg t ) Fixed average amount of water allocation per period (assuming agency costs of owner's equity) for the agricultural sector from period t+1 onwards Vg t Water quantity that the Water Commissioner sees as "his own" Vo t Water quantity that the Water Commissioner does not see as "his own" Vo t (Cpg t )Water wealth of the agricultural sector assuming agency costs of owner's equity Wsa t Agricultural sec...

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Section: Water Shortagementioning

confidence: 99%

Water Allocation Between the Agricultural and the Municipal Sectors Under Scarcity: A Financial Approach Analysis

Braude

Hauser

Sinuany‐Stern

et al. 2015

Water Resour Manage

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“…Efforts to cope with water deficiency include the operation of desalination units, wastewater reuse, water restrictions in periods of water crisis (i.e. drought events) and water-saving programmes (Charalambous 2001). The Water Development Department, responsible for the management of water resources, bases its water conservation strategy on programmes of subsidies for encouraging saving of potable water.…”

Section: Subsidies For Water-saving Actions Cyprusmentioning

confidence: 99%

Water demand management: implementation principles and indicative case studies

Kampragou

Lekkas

Assimacopoulos

2010

Water & Environment J

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Current practices for the efficient use and management of water resources are based on the conjunctive application of water supply and demand measures. Even though options for the augmentation of water supply are widely analysed and assessed, water demand management remains an open field for study, as it is highly dependent on the socio-economic features of a region and has a sitespecific character. This paper summarizes the guiding principles of demand management and presents some successful application examples of demand management measures from regions that cover a wide range of socioeconomic and environmental conditions in an effort to identify the critical factors for the efficient planning and implementation of demand management plans.

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“…Combined procedures and technologies can improve the plant water-use efficiency [12]. In this context, under drought conditions, the employ of antitranspirants may improve the water-use efficiency, often assumed to express the irrigation system performance and also defined as the ratio between the crop biomass and the amount of water consumed by the crop itself, including rainfall, irrigation water and plant transpiration [13].…”

Section: Introductionmentioning

confidence: 99%