Estimating the Cost of Water and the Economic Value of Water in the Farmlands Covered by Man-Made Ponds: A Case Study of the Alborz Project Area in Iran

محورهای موضوعی : Environmental policy and management

مجتبی نبی زاده ذوالپیرانی ¹ , حمید امیرنژاد ² , علی شاهنظری ³

1 - دانشجوی دکتری اقتصاد کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی ساری
2 - دانشیار گروه اقتصاد کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی ساری
3 - دانشیار گروه مهندسی آبیاری، دانشگاه علوم کشاورزی و منابع طبیعی

تاریخ دریافت : 1394/12/03 تاریخ پذیرش : 1396/11/02 تاریخ انتشار : 1396/12/10

کلید واژه: agricultural sector, economic value of water, cost of water, Alborz project, man-made pond,

چکیده مقاله :

Water pricing is considered as one of the most important management tools of water resources, which can result in optimized allocation in the agricultural sector. In this regard, this study estimated the cost of water and the value of water in the farmlands covered by the selected manmade ponds (MMPs) within the Alborz project area in Mazandaran Province using the engineering economics methods and production function calculation. The required data were collected via a survey conducted in 2013-2014 growing season. Sample size was estimated to be 198 people. After studying various production functions, transcendental production function was chosen as the best functional form. Next, the economic value of water for rice in the basin covered by the selected MMPs was calculated to be 19,065 IRR per m3 using an estimation of the production function. In addition, the cost of water per m3 in the selected MMPs was obtained as to be 868 IRR at the interest rate of 22% and 394 IRR at the interest rate of 12%. Comparing the cost of water with the economic value of water demonstrated that the economic value of water is higher than the cost of water in the selected MMPs, and that both of them had great difference with the price paid by farmers. The implication is that the existing gap between the real price and the price paid by farmers should be filled by the economical pricing of water.

چکیده انگلیسی:

قیمت گذاری آب یکی از مهم­ترین ابزار مدیریت منابع آب می­باشد که می­تواند به تخصیص بهینه آن در بخش کشاورزی منجر شود. در این راستا، مطالعه حاضر با  استفاده از روش­های اقتصاد مهندسی و تابع تولید به برآورد و مقایسه قیمت تمام شده و ارزش آب در اراضی زراعی تحت پوشش آب­بندان­های منتخب در محدوده پروژه البرز در استان مازندران می­پردازد. به این منظور، با استفاده از روش نمونه­گیری تصادفی ساده حجم نمونه جهت برآورد ارزش اقتصادی آب در محصولات زراعی زیر حوضه آب­بندان­های منتخب 198 تعیین شد و داده­های مورد نیاز، از طریق تکمیل پرسشنامه و مطالعات میدانی در سال زراعی 93- 1392 جمع­آوری گردید.پس از بررسی نتایج توابع تولید مختلف، تابع تولید ترانسندنتال به عنوان تابع تولید مناسب انتخاب و ارزش اقتصادی آب برای محصول برنج در حوضه آب­بندان­های منتخب 19065 ریال به ازای هر مترمکعب محاسبه گردید.همچنین، قیمت تمام شده آب به ازای هر مترمکعب در آب­بندان­های منتخب با نرخ بهره 22 درصد 868 ریال و با نرخ بهره 12 درصد 394 ریال به­دست آمد. مقایسه قیمت تمام شده آب با ارزش اقتصادی آن در آب­بندان­های منتخب، نشان دهنده بیشتر بودن ارزش اقتصادی آب از قیمت تمام شده آن و تفاوت بسیار زیاد هر دوی آن­ها با آب­بهای پرداختی کشاورزان می­باشد. در نتیجه شکاف موجود بین قیمت واقعی آب و قیمت پرداختی کشاورزان باید به­وسیله قیمت گذاری اقتصادی آب پر شود.

منابع و مأخذ:

Asadi, H., Soltani, Gh., & Torkamani, J. (2007). Agricultural water priceing in Iran, case study at upper areas of Taleghan dam. Agricultural Economics and Development, 15(58), 61-90.

Asadi, H., Tavakoli, A.R., & Ashrafi, SH. (2013). Economic analysis of water and limited irrigation of rainfed wheat under different farm managements in some farms of Kermanshah. Journal of Water Research in Agriculture, 26(4), 461-470.

Cochran, W. G. (1997). Sampling Techniques. Wiley & Sons, USA.

Daneshvarkakhki, M. (2003). Estimate the true value and cost of water in the different operation of system in Khorasan. Organization of Iran Water Resources Management.

Dashti, GH., Aminian, F., Hosainzad, G., & Hayati, B. A. (2010). Determining estimating value of water in wheat production (case study: underground water resources in Damghan region). Sustainable Agricultural Knowledge, 2 (1), 121-131.

Dehqanpour, H., & Sheykhzeynodin, A.)2013(. Determining the economic value of irrigation in Yazd plain- Ardakan. Agricultural Economics and Development, 21(82), 45-68.

Ehsani, M. & Khaledi, H. (2003(. Agricultural water efficiency(1^St Edition). Publications of the National Committee on Irrigation and Drainage of Iran.

Ehsani, M., Hayati, B. A., & Adeli, M.)2010(. Estimating the economic value of water in the production of corn: case study of the Central city district of Alborz in Qazvin. Agricultural Economics and Development, 18(72), 75-93.

Franklin, M. F., & Annette, H. L (2005). Liquid Assets: An Economic Approach for Water Management and Conflict Resolution in the Middle East and Beyond. RFF Press, Washington, USA.

Frija, A., Chebil, A., & Cheikh M'Hamed, H. (2013). Marginal Value of Irrigation Water in Wheat Production Systems of Central Tunisia. Paper presented at 4^th International Conference of the African Association of Agricultural Economists, September 22-25, Hammamet, Tunisia.

Gibbons, D. C. (1986), The Economic Value of Water, Resources of the Future, Inc., Washington, D.C, USA.

Hassanpour, E., Abdeshahi, A., Samaei, A. & Saneei Dehkordi, K. H. (2014). Determine the economic value of water in agriculture: a case study of the northern region of Khuzestan Dez irrigation network. Paper presented at 4^th National Conference on Irrigation and Drainage Networks Management, February 25-27, Shahid Chamran University of Ahwaz, Ahwaz, Iran.

Hayati, B. A., Shahbazi, H., Kavoosi Kalashami, M. & Khodaverdizade, M. )2009(. Estimating the real price of water in the production of wheat and barley use by production function approach: Case Study of North Khorasan, Razavi and Southern. Journal of Knowledge of Sustainable Agriculture, 19(1), 143-155.

Mansouri, M. & Qiasi, A. R. (2002). The estimated cost of agricultural water to the reservoir dam engineering economics approach: case of study Dams of Bokan, Mahabad and Barun in west Azerbaijan. Journal of Agricultural Economics and Development, 10(37), 171-191.

Mashhadizadeh, F., Amiri, H. & Shojaei, A. (2014). Estimating the economic value of agricultural water and electricity consumption in wheat production: case study of Khuzestan. Paper presented at 3^th international conference on emerging trends in energy conservation, March 2-3, Tehran, Iran.

Mesa-Jurado, M. A., Martin-Ortega, J., Ruto, E., & Berbel, J. (2012). The economic value of guaranteed water supply for irrigation under scarcity conditions. Agricultural Water Management, 113, 10-18.

Ministry of Energy (2012). Guide determining the economic value of water for agriculture. Deputy of planning and strategic supervision of president. Tehran.

Najafi, I., & Najafi, B. (2009). Factors affecting water demand in fish farms in Kohgiluye Buirahmad. Journal of Agricultural Economics, 4(1), 191-207.

OECD (Organization for Economic Co-operation and Development). (2003). Distribution of Costs and Environmental Impacts of Water Services in OECD States: Affordability Measurement and Policies. Paris: OECD.

Oskoonejad, M. M. (2002). Engineering economics or economic assessment of industrials projects(25^th edition). Amir Kabir University (Tehran Polytechnic), Tehran.

Pakravan, M.R. & Mehrabi Bshrabady, H. (2010). Determining economic value and demand function of water in producing sugar beet in Kerman. Journal of Iranian Water Research, 4 (6), 83-90.

Rahmani, F., & Ansari, H. (2012). The estimated cost of the dam water crisis Khorasan plains forbidden and prohibited. Journal of Human and Environment, 22(3), 69-75.

Rezaei, A. )2014(. The real price of water in irrigation and drainage networks: Case Study of Dorudzan network in Fars. Paper presented at 5^th Iranian Water Resources Management Conference, February 18-19, Tehran, Iran.

Rogers, P., Silva, R. D., & Bhatia, Q. S. (2002). Water is an economic good: how to use prices to promote equity, efficiency and sustainability. Water Policy, 4(1), 1–17.

Samdeliri, A. )2013(. Economic valuation of water in the West of Mazandaran. Unpublished thesis, Tarbiat Modares University, Faculty of Agriculture, Department of Agricultural Economics. Tehran, Iran.

Schoengold, K. & Zilberman, D. (2014). The economics of tiered pricing and cost functions: Are equity, cost recovery, and economic efficiency compatible goals? Water Resources and Economics, 7, 1–18.

Shahnazari, A., Shahroodi, P., & Parvin, R. )2012(. Comparison of different scenarios sub-network of irrigation and drainage canals degree in sustainable development projects Alborz and the chosen of preferred option. Mazandaran Regional Water Company.

Tahamipour, M., Kalashami, M.K., & Chizari, A. (2015). Irrigation water pricing in Iran: the gap between theory and practice. International Journal of Agricultural Management and Development, 5(2), 109-116.

Warda, F. A. & Michelsenb, A. (2002). The economic value of water in agriculture: concepts and policy applications. Water Policy, 4(5), 423–446.

Yavarpour, M., Shahnazari, A., Parvin, R. & Aghajani, GH. (2010). Check the status of man made pounds in scope of Alborz project. Paper presented at 1^st national conference on coastal lands, water resources management, December 8-9, Sari Agricultural Neutral Resource University, Sari, Iran.

Zhao, R., & Chen, S. (2008). Fuzzy pricing for urban water resources: Model construction and application. Journal of Environmental Management, 88(3), 458–466.

Ziolkowska, J. J. (2014(. Evaluating the Shadow Price of Water for Irrigation–A Case of the High Plains. Agricultural and Applied Economics Association Annual Meeting, Minneapolis, Minnesota.