بررسی اجزای شاخص ردپای آب گیاه نیشکر در شرایط زهکشی آزاد، کنترل شده و تامین نیاز آبی (مطالعه موردی: کشت و صنعت سلمان فارسی)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه آبیاری و زهکشی ،دانشکده مهندسی آب و محیط زیست، دانشگاه شهید چمران اهواز

2 گروه آبیاری و زهکشی دانشکده مهندسی آب و محیط زیست، دانشگاه شهید چمران اهواز

3 گروه مدیریت منابع آب، دانشگاه واگنینگن، هلند

چکیده

شناسایی مقدار آب مورد استفاده برای تولید محصولات کشاورزی دارای اهمیت بالایی بوده و ارزیابی آن می­تواند در شناخت و ارائه راهکارهای مناسب برای کاهش مصرف آب در بخش کشاورزی بسیار موثر باشد. در این تحقیق به­منظور بررسی وضعیت مصرف آب گیاه نیشکر در استان خوزستان به ازاء محصول تولیدی، از شاخص­­ ردپای آب در دو مزرعه 25 هکتاری (زهکشی آزاد و زهکشی کنترل شده) از واحد کشت و صنعت سلمان فارسی استفاده گردید. همچنین با استفاده از اطلاعات برداشت شده و موجود، مدل آکواکراپ واسنجی و چهار سناریوی آبیاری (100I1=،115I2=، 85I3= و 70I4= درصد نیاز آبی) اجرا و بر اساس نتایج حاصله شاخص ردپای آب مجددا محاسبه شد. نتایج نشان داد مقدار آب مورد نیاز برای تولید نیشکر در مزرعه با زهکشی آزاد 258 متر مکعب بر تن بود که از این مقدار 12% را آب سبز، 72% آب آبی و 16% را آب خاکستری به خود اختصاص دادند. با استفاده از زهکش کنترل شده این مقدار به 222 متر مکعب بر تن کاهش یافت که سهم آب سبز، آبی و خاکستری به­ترتیب 16، 69 و15 درصد بودند. نتایج حاصل از اجرای مدل نشان داد در سناریوی I1 و I2 شاخص ردپای آب در زهکش کنترل شده 18 درصد کمتر از زهکشی آزاد است. این مقدار برایI3  و I4 نیز در زهکشی کنترل شده به­ترتیب 18 و 19 درصد کمتر از زهکشی آزاد تعیین شد. مقایسه نتایج نشان داد در حالت زهکشی کنترل شده و تامین 85% نیاز آبی گیاه، شاخص ردپای آب نسبت به حالت معمول (که در حال اجرا می­باشد) 23 درصد کاهش می­یابد که بهترین گزینه در بین سناریوهای بررسی شده می­باشد.

کلیدواژه‌ها


عنوان مقاله [English]

Investigation of Sugarcane Water Footprint Index Components in Free Drainage, Controlled Drainage and Water Requirement Conditions (Case study: Salman Farsi Agro-industry)

نویسندگان [English]

  • Seyyed morteza Moradian vafaei 1
  • Amir Soltani Mohammadi 2
  • Abdali Naseri 2
  • Piter Van Oeel 3
1 Department of Irrigation and Drainage, Faculty of Water and Environmental Engineering, Shahid Chamran University of Ahvaz
2 Department of Irrigation and Drainage, Faculty of Water and Environmental Engineering, Shahid Chamran University of Ahvaz
3 Water Resources Management Group, Wageningen University and Research, the Netherlands.
چکیده [English]

Identifying the amount of water used to produce agricultural products is of great importance, and it can be very effective in recognizing and providing appropriate solutions to reduce water consumption in agriculture. In this study, in order to investigate the water consumption of sugarcane in Khuzestan province for sugarcane production, the water footprint index in two 25-hectare farms (free drainage and controlled drainage) from Salman Farsi agro-industry unit was used. Using the collected and available information, the AquaCrop model was calibrated. Then four irrigation scenarios (100, 110, 85, and 70% of water requirement) were implemented. Based on the results, the water footprint index was recalculated. The results showed that the amount of water required for sugarcane production in the field with free drainage was 258 cubic meters per ton. Of this amount, 12% was green water, 72% blue water, and 16% gray water. Using controlled drainage, this amount was reduced to 222 cubic meters per ton, of which green, blue, and gray water were 16, 69, and 15 percent, respectively. The results of the model showed that in scenarios I1 and I2, the water footprint index in controlled drainage is 18% lower than the free drainage.  This value is 18% and 19% for I3 and I4, respectively. Comparison of the results showed that in the controlled drainage condition and supply of 85% of the plant water requirement, the water footprint index decreases by 23% compared to the normal (which is running) condition, which is the best option among the studied scenarios.

کلیدواژه‌ها [English]

  • Water Footprint Index
  • Drainage
  • Controlled
  • Sugarcane
  • Aquacrop
Adetoro, A.A., Abraham, S., Paraskevopoulos, A.L., Owusu-Sekyere, E., Jordaan, H. and Orimoloye, I.R.  2020.  Alleviating water shortages by decreasing water footprint in sugarcane production: The impacts of different soil mulching and irrigation systems in South Africa. Groundwater for Sustainable Development 11, 100464.
Barbosa, E.A.A., Matsura, E.E., dos Santos, L.N.S., Gonçalves, I.Z., Nazário, A.A. and Feitosa, D.R.C.  2017.  Water footprint of sugarcane irrigated with treated sewage and freshwater under subsurface drip irrigation, in Southeast Brazil. Journal of Cleaner Production 153, 448-456.
Chukalla, A.D., Krol, M.S. and Hoekstra, A.Y.  2017.  Marginal cost curves for water footprint reduction in irrigated agriculture: guiding a cost-effective reduction of crop water consumption to a permit or benchmark level. Hydrology and earth system sciences 21(7), 3507.
Doorenbos, J. and Kassam, A.  1979.  Yield response to water. Irrigation and drainage paper (33), 257.
FAO., F.a.A.O.o.t.U.N. 2014, www.faostat.org, Rome, Italy.
Golabi, M. and Naseri, A.A.  2015.  Assessment Aquacrop Model to Predict the Sugarcane Yield and Soil Salinity Profiles under Salinity Stress. Iranian Journal of Soil and Water Research 46(4), 685-694.  (In Farsi)
Haghnazari, F., Ghanbarian, M., Sheini Dashtegol, A. and Varnaseri, V.  2020.  Evaluation of Sugarcane Yield Affected as Irrigation Level and Fertilizer by using Aquacrop Model. Crop Science Research in Arid Regions 2(1), 87-96.  (In Farsi)
Herath, I., Green, S., Horne, D., Singh, R. and Clothier, B.  2014.  Quantifying and reducing the water footprint of rain-fed potato production, part I: measuring the net use of blue and green water. Journal of cleaner production 81, 111-119.
Hoekstra  2007.  Human appropriation of natural capital: comparing ecological footprint and water footprint analysis.
Hoekstra, A.Y. 2003  Virtual water trade: A quantification of virtual water flows between nations in relation to international crop trade, pp. 25-47.
Hoekstra, A.Y., Chapagain, A.K., Mekonnen, M.M. and Aldaya, M.M. (2011) The water footprint assessment manual: Setting the global standard, Routledge.
Huai, H., Chen, X., Huang, J. and Chen, F.  2020.  Water-Scarcity Footprint Associated with Crop Expansion in Northeast China: A Case Study Based on AquaCrop Modeling. Water 12(1), 125.
Jahani, B., Soltani Mohammadi, A., Nasseri, A.A., Van Oel, P.R. and Sadeghi Lari, A.  2017.  Reduction of Sugarcane Water Footprint by Controlled Drainage, in Khuzestan, Iran. Irrigation and Drainage 66(5), 884-895.
Mekonnen, M.M. and Hoekstra, A.Y.  2014.  Water footprint benchmarks for crop production: A first global assessment. Ecological indicators 46, 214-223.
Moriasi, D.N., Arnold, J.G., Van Liew, M.W., Bingner, R.L., Harmel, R.D. and Veith, T.L.  2007.  Model evaluation guidelines for systematic quantification of accuracy in watershed simulations. Transactions of the ASABE 50(3), 885-900.
Najafabadi, R.A., Mohammad amin. 2010  Investigation of the effect of organic matter by vertical mulching method on physical and chemical properties of soil and improvement of sugarcane yield, Islamic Azad University, Dezful Branch, Iran, Dezful.  (In Farsi)
Ramezani Etedali, H.A., Behnam  2017.  Estimation of virtual water footprint components in barley production on national and provincial scale. Water research in agriculture (soil and water sciences) 30, 431-444.  (In Farsi)
Reis, A., Santos, A.C.d., Anache, J.A.A., Mendiondo, E.M. and Wendland, E.C.  2020.  Water footprint analysis of temporary crops produced in São Carlos (SP), Brazil. RBRH 25.
Richardson, S.D.  2003.  Disinfection by-products and other emerging contaminants in drinking water. TrAC Trends in Analytical Chemistry 22(10), 666-684.
Scarpare, F.V., Hernandes, T.A.D., Ruiz-Corrêa, S.T., Kolln, O.T., de Castro Gava, G.J., dos Santos, L.N.S. and Victoria, R.L.  2016.  Sugarcane water footprint under different management practices in Brazil: Tietê/Jacaré watershed assessment. Journal of cleaner production 112, 4576-4584.
Tavakoli, A., Liaghat, A. and Alizadeh, A.  2014.  Soil Water Balance, Sowing Date and Wheat Yield Using AquaCrop Model under Rainfed and Limited Irrigation. (In Farsi)
Van Steenbergen, F., Kaisarani, A.B., Khan, N.U. and Gohar, M.S.  2015.  A case of groundwater depletion in Balochistan, Pakistan: Enter into the void. Journal of Hydrology: Regional Studies 4, 36-47.
Wang, Y., Wu, P., Engel, B. and Sun, S.  2015.  Comparison of volumetric and stress-weighted water footprint of grain products in China. Ecological Indicators 48, 324-333.
Yang, H., Wang, L., Abbaspour, K.C. and Zehnder, A.J.  2006.  Virtual water trade: an assessment of water use efficiency in the international food trade.