Abstract
Real cost evaluation of water is necessary in agricultural products depending on obtained value by this input. In most areas of world especially in arid and semiarid areas, exist over pumping of ground water because the real value of water is much most than the costs of water supply and the lack of fit management water resources. In this study, using a sample of 110 farmers, water dealing value of over using of groundwater in Rafsanjan pistachio production area were investigated. Analysis and regression methods were used in this regard. The average determined value obtained 24 cents, for each share of water in this region which with over drafting of ground water, and decreasing quality and quantity of water has had significant relationship in the one percent significance level. Finally, for elimination or reduction of ground water degradation and its effects, this paper recommended in addition to reduction of licenses for ground water pumping. Determination of optimal economic water/land ratio in new and old pistachio producing areas is the other proposal of this research for alleviation groundwater over drafting effects. Permission for water conduction between wells and combination of fresh and saline water and also using desalination systems are methods for solving low quality of ground water.
Highlights
Today water is one of the most important factors in the growth and prosperity of human society (Ghasemzadeh et al 2007)
For better understand of the problem, the characteristics of rinse well in Rafsanjan plain presented in table 1 and compared with other studies.Table 1 shows that the real average discharge of wells is 23.28 liters per second, while the average statutory discharge of wells is 25.42 liters per second
Row 7 of Table 1 show that the dealing value of each cubic meter of water in Rafsanjan plain is 0.33 dollar
Summary
Today water is one of the most important factors in the growth and prosperity of human society (Ghasemzadeh et al 2007). Only one percent of the available water resources in the earth is drinking water that 98 percent of its is ground water 50% of the world’s population supplies drinking water from ground water that this value is higher in Iran (Alizadeh, 2007). The spatial pattern of population in Iran is not compatible with the spatio-temporal pattern of water resources (Piroozi and Karzar, 2009). Nowadays, increasing the population and new technologies has led to overdraft of groundwater resources (Shahidasht and Abbasinejad, 2010). All these facts make the gap between supply and demand of groundwater which has led to ground water over use (Stanton and Fitzgerald, 2011). Gunn et al (2011), by considering the ground water management in the world, concluded that ground water over use made short-term benefits for the development of deprived or rural areas, but in the long-term leads to negative consequences for the environment
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
