بررسی شاخص‌های بهره‌وری آب، غذا و انرژی با استفاده از چارچوب حسابداری آب WA+ و رویکرد پیوندی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی آب، دانشکده فناوری کشاورزی، دانشگاه تهران، تهران، ایران.

2 مؤسسه تحقیقات آب، وزارت نیرو، تهران، ایران.

10.22059/jwim.2023.357988.1069

چکیده

این مطالعه با هدف افزایش بهره‌وری آب، غذا و انرژی اقدام به توسعه و اعتبارسنجی ابزاری برای ارزیابی استراتژی‌های مدیریتی کشاورزی در رابطه با پیوند امنیت آب، غذا و انرژی در دو مرحله انجام شد. در بخش اول با استفاده از چارچوب حسابداری آب WA+، با هدف آنالیز پارامترهای هیدروکلیماتولوژی اقدام به محاسبه کاربرگ‌های چهارگانه منابع پایه، تبخیر و تعرق، برداشت منابع آب و بهره‌وری حوضه آبریز پلاسجان و تعیین سناریوهای مدیریتی جهت افزایش بهره‌وری شد و در بخش دوم سناریوهای مدیریتی با رویکرد پیوندی موردارزیابی و اولویت‌بندی قرار گرفت. نتایج WA+ نشان داد که در حوضه پلاسجان حجم بالای تبخیروتعرق غیرمفید بود. در بخش دوم این پژوهش، بین چهار سناریوی اصلی (48 زیرسناریو) معرفی شده جهت بهبود بهره‌وری، سناریوهای تغییر رقم و تیمار آبیاری، تغییر سطح زیرکشت و کشت دیم با آبیاری تکمیلی دارای تأثیر مثبت در شاخص بهره‌وری آب، غذا و انرژی بودند. پس از اولویت‌بندی زیرسناریوهای تأثیرگذار با مدل تصمیم‌گیری چندمعیارهTOPSIS ، زیرسناریو رقم شش گندم با تیمار آبیاری کامل بیش‌ترین تأثیر مثبت در بهره‌وری آب، غذا و انرژی را داشته و به‌عنوان سناریو شاخص برای ارزیابی بهره‌وری در مدیریت کشاورزی شناسایی شد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Assessment of Water, Food, and Energy Productivity Indices Using the WA+ Water Accounting Framework and a Nexus Approach

نویسندگان [English]

  • Seyed Ali Moasheri 1
  • saman Javadi 1
  • Mahmoud Mashal 1
  • hamid Kardan moghaddam 2
  • Behzad Azadegan 1
1 Department of Water Engineering, Faculty of Agricultural Technology, University of Tehran, Iran.
2 Department of Water Engineering, Faculty of Agricultural Technology, University of Tehran, Iran.
چکیده [English]

With the aim of increasing water, food and energy productivity, this study was carried out in two stages to develop and validate a tool for evaluating agricultural management strategies in relation to the link between water, food and energy security (NEXUS). In the first part, using the WA+ water accounting framework, with the aim of analyzing the parameters of hydro climatology, the four worksheets of basic resources, evaporation and transpiration, harvesting of water resources and productivity of the Plasjan watershed were calculated and management scenarios were determined to increase productivity, and in the second part, management scenarios with The NEXUS approach were evaluated and prioritized. The results of WA+ showed that in the Plasjan basin, the high volume of evaporation and transpiration was useless. In the second part of this research, among the 4 main scenarios (48 sub-scenarios) introduced to improve productivity, the scenarios of cultivar change and irrigation treatment, change of cultivated area and rainfed cultivation with supplementary irrigation had a positive effect on water, food and energy productivity index. After prioritizing the influential sub-scenarios with the TOPSIS multi-criteria decision-making model, the sub-scenario of wheat variety 6 with full irrigation treatment had the most positive effect on water, food and energy productivity and was identified as an indicator scenario for evaluating productivity in agricultural management.

کلیدواژه‌ها [English]

  • Groundwater
  • NEXUS
  • Plasjan plain
  • Water accounting
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