ارزشگذاری اقتصادی آب به منظور بررسی میزان تخصیص آب در کاربریهای مختلف (مطالعه موردی: حوزه آبخیز بجستان) | ||
| خشک بوم | ||
| دوره 12، شماره 2، مهر 1401، صفحه 13-27 اصل مقاله (1.36 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.29252/aridbiom.2023.19753.1925 | ||
| نویسندگان | ||
| فاطمه محمدزاده* 1؛ احمد فتاحی اردکانی2 | ||
| 1دانشآموختة دکتری گروه علوم و مهندسی آبخیزداری، دانشکده منابع طبیعی و کویرشناسی، دانشگاه یزد، یزد، ایران | ||
| 2دانشیار گروه اقتصاد دانشکده کشاورزی و منابع طبیعی دانشگاه اردکان، اردکان، ایران | ||
| چکیده | ||
| تأمین آب با کیفیت در کاربریهای مختلف در بخشهای شرب، بهداشت و کشاورزی در مناطق خشک کشورمان، با چالشهای متعددی روبرو است. آب شرب، به دلیل جایگاه راهبردی و حساسیت بالا، به کیفیت مطلوبتری نیاز دارد. حوزة مطالعاتی بجستان از مناطق خشک استان خراسان رضوی است و شهر بجستان در محدودة مرکزی این حوزه واقع شده است. آب کشاورزی از سه رشته قنات با کیفیت مطلوب در سطح دشت و بخش عمدة آب در کاربریهای شرب، بهداشت و فضای سبز شهری از آب انتقالی پلایا با کیفیت پایینتر تأمین میشود. از آنجا که بخش اعظم آب زیرزمینی این حوزه با کیفیت مناسب در بخش کشاورزی مصرف میشود، این تحقیق با هدف تحلیل اقتصادی قیمتها، به منظور تعیین قیمت واقعی نهادة آب در کاربریهای مختلف و مقایسة نسبت سود به هزینه در تخصیص نوع منبع آبی صورت میگیرد. با توجه به جمعیت 14000 نفری شهر بجستان و سرانة روزانه 3 لیتر به ازای هر نفر، هزینة روزانة 09/42 مترمکعب آب شرب تأمینی، 115441332 ریال است. این در حالی است که هزینة واقعی روزانة آب در بخش بهداشت به ازای این جمعیت، 93.283.042 میباشد. نتایج تحلیل هزینهها در بخش کشاورزی در محصولات انار، زعفران و پسته نشان داد که نسبت سود به هزینه به ترتیب 87/0، 2/2 و 89/0 میباشد که نشان از به صرفهنبودن تولید محصول در این بخش است و در صورت خامفروشی آب توسط کشاورزان به شرکت آب و فاضلاب، حتی به یکسوم قیمت واقعی آب شرب، یعنی 914.000 ریال، منجر به کاهش اُفت آبخوان و نیز افزایش سود کشاورزان خرده مالک شده و به مدیریت بهینة مصرف و تخصیص آب کمک خواهد نمود. | ||
| کلیدواژهها | ||
| نهادة آب؛ مدیریت بهینة مصرف؛ قیمت واقعی؛ تحلیل اقتصادی | ||
| عنوان مقاله [English] | ||
| Economic valuation of water to examine water allocation in different usages (Case study: Bajestan plain) | ||
| نویسندگان [English] | ||
| Fatemeh Mohammadzadeh1؛ Ahmad Fatahi Ardakani2 | ||
| 1Ph.D. in Watershed Management Science, Faculty of Natural Resources and Desert Studies, Yazd University, Yazd, Iran | ||
| 2Associate Professor of Agricultural Economics, Department of Agricultural Economics, Faculty of Agricultural & Natural Resources, Ardakan University, Ardakan, Iran | ||
| چکیده [English] | ||
| To provide quality water for various uses in drinking, health and agricultural sectors, arid regions of our country is facing many challenges. Due to its strategic location and higher sensitivity, drinking water needs better quality. The study area of Bajestan is one of dry lands of Razavi Khorasan province. This city is located in the central area of this area. The agricultural water of this plain is supplied from three Qanats with good quality of the plain, and original resource water for drinking, sanitation and urban green spaces is supplied from the transfer water of playa with lower quality. Since most of groundwater of this area is used in the agricultural sector, this research is aimed at economic analysis of prices, in order to determine the actual price of water input in different uses and compare their ratio. Benefit to cost is done in allocating the type of water source. Considering the population of Bajestan city of 14000 people and daily per capita consumption of 3 liters per person, the daily cost of 42.09 m3 of drinking water is 115441332 IRRs, while the actual daily cost of water in the health sector for this population is 93283042. The results of analysis of costs in the agricultural sector in pomegranate, saffron and pistachio products showed that the ratio of profit to cost is 0.87, 2.2 and 0.89, respectively, which shows that the production of product is not efficient. This is the sector and in the case of raw water sold by farmers to Water Company, even at a third of the actual price of drinking water, that is 914000 IRRs. It leads to a decrease in the aquifer and also to an increase in profit for the smallholder farmers and the management, optimizing water consumption and allocation will help. | ||
| کلیدواژهها [English] | ||
| Water Input, Optimal Consumption Management, Real Price, Economic Analysis | ||
| مراجع | ||
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