Assessment of Water Saving and Increasing Agriculture Water Productivity Policies in an Integrated Framework

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Goli Raeisi L.; MORID S.; DELAVAR M.

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Paper Information

Journal: Iranian Journal of Irrigation and Drainage Year:2020 | Volume:13 | Issue:5 Page(s): 1410-1425

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Title

Assessment of Water Saving and Increasing Agriculture Water Productivity Policies in an Integrated Framework

Author(s)

Goli Raeisi L. | MORID S. | DELAVAR M. | Issue Writer Certificate

Keywords

Water ProductivityQ1

Real Water SavingQ1

SWATQ1

AquaCropQ1

Fars ProvinceQ2

Abstract

Water scarcity is a serious threat for the food security of Iran. Hence, different strategies are considered to save more water and increase Water Productivity. In this research work, some of the measures that are more pointed out in the country’ s high level plans are evaluated based on the concept of "Real Water Savings" and Water Productivity as well as physical Water Productivity. The criteria that emphasize on actual evapotranspiration and distinction of water depletion from withdrawal. With this aim, the SWAT model was first applied for the required simulations. However, it was found some deficits in its field scale modeling. So, for some the management scenarios AquaCrop model was also used. The evaluated measures include: deficit irrigation (scenario 20, 40 and 50 percent), substitution of drip irrigation with surface irrigations and greenhouse cultivation. To show the methodology, the Marvdasht and Kharame subbasins-located in Fars Province, are selected. The results showed that the deficit irrigation at its highest rate (i. e. 50%) saves water up to 12%. While, implementing drip irrigation led to increase 8. 3% in water consumption. Similarly, greenhouse can result up to 24% reduction in evapotranspiration, which has the highest capacity for Real Water Saving. Notably, the Water Productivity does not change significantly, while applying deficit irrigation and increasing irrigation efficiency. But, it is physical Water Productivity that increases that cannot be due decrease in water depletion. The modeling framework of this research was found suitable for the field and basin scales assessments. It considers various aspects of water balance and Water Productivity components. So, it is recommended to be considered for similar research works regarding water saving and Water Productivity policies.

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APA: Copy

Goli Raeisi, L., MORID, S., & DELAVAR, M.. (2020). Assessment of Water Saving and Increasing Agriculture Water Productivity Policies in an Integrated Framework. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 13(5 ), 1410-1425. SID. https://sid.ir/paper/131460/en

Vancouver: Copy

Goli Raeisi L., MORID S., DELAVAR M.. Assessment of Water Saving and Increasing Agriculture Water Productivity Policies in an Integrated Framework. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2020;13(5 ):1410-1425. Available from: https://sid.ir/paper/131460/en

IEEE: Copy

L. Goli Raeisi, S. MORID, and M. DELAVAR, “Assessment of Water Saving and Increasing Agriculture Water Productivity Policies in an Integrated Framework,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 13, no. 5 , pp. 1410–1425, 2020, [Online]. Available: https://sid.ir/paper/131460/en

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