نوع مقاله : علمی - پژوهشی

نویسندگان

1 گروه اقتصاد، دانشکده علوم اقتصادی و سیاسی، دانشگاه شهید بهشتی، تهران

2 دانشکده علوم اقتصادی و سیاسی، دانشگاه شهید بهشتی، تهران

چکیده

یکی از دیدگاه های نوین در مدیریت منابع آب، توجه به اصـــل مزیت نسبی و تجارت آب مجازی است. در واقع این نگاه وجود دارد که می توان یک تخصــص منطقه ای بر اســاس منابع آب در نظر گرفت و مناطقی که کم آب هسـتند واردکننده محصـولات آب بر باشـند و این محصـولات در مناطق پرآب تولید شود و یا اینکه از کشورهای دیگر وارد شود. در این پژوهش این دیدگاه برای ا ستان گیلان مورد بررسی قرار گرفت. در واقع، ســؤال پژوهش این اســت که الگوی تجارت آب مجازی در این اســتان چگونه اســت؟ برای پاســخ به این ســؤال، از ابزار جدول داده- ســتانده  گسترش یافته ا ستفاده شد. بر این اساس، میزان آب مصرفی مستقیم و کل، به تفکیک 40 ر شته فعالیت اقت صادی در سطح استان مورد برر سی قرار گرفت. نتایج ن شان داد که استان گیلان به ترتیب با خالص صادرات636  و 811 میلیون متر مکعب آب در سطح کل فعالیت های اقتصادی و بخش کشاورزی، صادرکننده خالص آب مجازی  بوده ا ست. این در حالی است که این استان در بخش صنعت واردکننده خالص آب مجازی بوده اســت. بر اســاس یافتهها و اطلاعات به دســت آمده در این پژوهش، این امکان وجود دارد که با تغییر در ترکیب فعالیت های اقتصـــادی (افزایش ســهم رشــته فعالیت های دارای ارزش افزوده بالا و کاهش ســهم رشــته فعالیت های دارای شدت بالای استفاده از آب)، بتوان ارزش افزوده استان گیلان را در سطح فعلی حفظ کرده و در عین حال تراز تجاری آب استان را بهبود داد.

کلیدواژه‌ها

عنوان مقاله [English]

Pattern of Virtual Water Trade in the Economic Activities of Guilan Province: Application of an Extended Input-Output Table

نویسندگان [English]

  • Morteza Tahamipour 1
  • Abas Salah 2
  • Abbas Arabmazar 1

1 Department of Economics and Political science,Faculty of Economics, University of Shahid Beheshti, Tehran

2 Faculty of Economics, University of Shahid Beheshti, Tehran

چکیده [English]

One of the new approaches in the management of water resources is according to the principle of comparative advantage and trade in virtual water. This is based on the view that it can be considered a specialty area in which the water products and the products produced in wet areas, or imported from other countries, enter areas that are less water. In this study, the approach in Gilan Province has been studied. On this basis, the central question of this study would be what form the trade model of virtual water in this province takes and, in order to answer this question, an extended input-output table was used. Accordingly, the direct and total water consumption for 40 activities at the provincial level has been considered. The results showed that Guilan Province, with net exports of 636 and 811 million cubic meters of water at the level of economic activity and agriculture, respectively, has been a net exporter of virtual water, while the province's industries and mines have been net importers of virtual water. Based on the information obtained in this study, it is possible through a change in the composition of economic activity (to increase the proportion of activities with high added value and reduce the share of activities with the highest intensity of water use) to hold the added value of Guilan Province and establish an improved trade balance for water.

کلیدواژه‌ها [English]

  • Water Resources
  • virtual water
  • Economic Activity
  • Input-output Table
  • Guilan Province
  • Iran

Committee of modified usage pattern index of Iran Statistics Center. Modify consumption patterns. Volume I and II. Iran Statistics Center Press. Tehran, Iran. 2010. [In Persian]

Mahab Ghodss Consulting Engineering Company. Macro planning of water resources of the country, report of the importance of nonstructural component of the plan the sector of integrated water resources, soil and environmental conditions studies, the water resources and uses office. 2013. [In Persian]

Allan, J.A.Virtual Water: A long-Term Solution for Water-Short Middle Eastern Economies. Paper presented at British Association Festival of Science, 6 September, Leeds, UK.1997.

Allan, J.A. Virtual water-the water, food and trade nexus: useful concept or misleading metaphor? Water International: 2003; 28: 106–113.

Mubako, S., Lahiri, S., Lant, C. Input–output analysis of virtual water transfers: Case study of California and Illinois. Ecological Economics: 2013; 93: 230–238.

Lenzen, M., Foran, B. An input–output analysis of Australian water usage. Water Policy: 2001; 3: 321–340.

Aldaya, M.M., Hoekstra, A. Y., and Allan, J. A. Strategic Importance of Green Water in International Grope Trade. UNESCO-IHE value of Water Research Report. 2008: 25.

Novo, P., Garrido, A., Varela-Ortega, C. Are virtual water “flows” in Spanish grain trade consistent with relative water scarcity? Ecological Economics: 2009; 68: 1454–1464.

Wang, Y., Xioa, H.L. and Lu, M.F. Analysis of Water Consumption Using a Regional Input– output Model. Model Development and Application to Zhangge City, North-Western China. Journal of Arid Environment: 2009; 73: 894-900.

Zhao, X., Yang, H., Yang, Z., Chen, B., Qin, Y. Applying the input–output method to account for water footprint and virtual water trade in the Haihe River basin in China. Environmental Science and Technology: 2010; 44: 9150–9156.

Kuishuang Feng, Y. L. S., Guan, p., and Habacek, K. Assessing Regional Virtual Water Flows and Water Footprint Geography: 2011; 32: 691-701.

Sabuhi, M and Soltani, GH. Optimize cropping patterns in the catchment area, with an emphasis on social benefits and net imports of virtual water. Journal of Agricultural Science and Technology: 2008; 12(43): 297-313. [In Persian]

Dehghanpour, H. and Bakhshodeh, AM. Review the restrictive aspects of virtual water in Marvdasht region. Journal of Agricultural Science and Technology: 2008; 22(1): 137- 147. [In Persian]

Baghestani, A., Mehrabi Boshrabadi, H., Zare Mehrjardi, M., Sherafatmand, C. Application of the virtual water concept in the management of water resources. Journal of Water Resources. Sixth year: 2009; 1: 28-38. [In Persian]

maknon, r. tahershamsi, a. rozegir, r. and nafisi, m. Virtual water and water for agricultural and move important items in Iran. Iran Water Resources Management Conference. Amirkabir University of Technology. Tehran, Iran. 2011. [In Persian]

Mohammadi Kani Golzar, F. Water management based on virtual water trade in the products of the country. Master's thesis, Department of Agricultural Economics and Development, Tehran University. 2012. [In Persian]

Khosravi, Z. Study of virtual water trade using input - output table. Master's thesis, Department of Agricultural Economics and Development, Tehran University. 2011. [In Persian]

Mahab Ghodss Consulting Engineering Company. Integrated Water Resources within the province of Gilan (Report Agricultural water use), the sector of integrated water resources, soil and environmental conditions studies, irrigation and drainage office. 2012. [In Persian]

Salahi, A. and Mosanejad, M. Quality and quantity of water consumed by pets. Aeizh publication. 2008. [In Persian]

marvi mohajer, m. Forest and breeding of forest. Institute of Tehran University and print publications. 2005. [In Persian]

Gleick, P.H., Haasz, D., Henges-Jeck, C., Srinivasan, V., Wolff, G., Cushing, k. k. and Mann, A. Waste Not, Want Not: The Potential for Urban Water, Conservation in California. Appendix C: Industrial and Commercial Water Use: Glossary, Data, and Methods of Analysis Report of PACIFIC INSTITUTE for Studies in Development, Environment, and Security. Alonzo Printing Co., Inc. U.S.A. 2003.

Gilan Regional Water Authority. Integrated Water Resources within the province of Gilan, agricultural water use report. 2012. [In Persian