EVALUATION OF EFFICIENCY OF LONG-TERM WEATHER DATA IN TRICKLE AND SPRINKLER IRRIGATION MANAGEMENT

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AMIRI SAMIA; GHEYSARI MAHDI; MOVAVEJALAHKAMI BITA

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Journal: JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION Year:2012 | Volume:2 | Issue:1 Page(s): 1-11

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Title

EVALUATION OF EFFICIENCY OF LONG-TERM WEATHER DATA IN TRICKLE AND SPRINKLER IRRIGATION MANAGEMENT

Author(s)

AMIRI SAMIA | GHEYSARI MAHDI | MOVAVEJALAHKAMI BITA | Issue Writer Certificate

Keywords

AUTOMATIC WEATHER STATIONQ2

CROP WATER REQUIREMENTQ2

EVAPOTRANSPIRATIONQ2

SMART IRRIGATIONQ1

Abstract

Proper estimation of CROP WATER REQUIREMENT is very important for water resource conservation in Iran. However, in most studies in Iran, the estimation of EVAPOTRANSPIRATION is based on long-term weather data. However, use of simultaneous weather data of a non-agricultural weather station may underestimate or overestimate the CROP WATER REQUIREMENT. Therefore, it is essential for irrigation specialist to be aware of the error of EVAPOTRANSPIRATION calculated by long-term weather data. The objective of this study was to evaluate accuracy of EVAPOTRANSPIRATION of reference crop using long-term weather data in comparison with simultaneous weather data in drip and sprinkler irrigation. The period was designated to be from 1995 to 2009 in Isfahan weather station, Kabootarabad weather station and Shahid Beheshti airport weather station. The maximum value of n-RMSE using long-term weather data in comparison to simultaneous weather data were 24% for trickle irrigation and 18% for sprinkler irrigation management, 22% in spring, 20% in summer, 44% in fall and 56% in winter. According to results of this study, the application of long-term weather data in deficit irrigation management is not recommended. On the other hand, due to sensitivity of trickle irrigation to water stress, the application of long-term weather data for estimating of EVAPOTRANSPIRATION in irrigation scheduling is not recommended. Finally, application of AUTOMATIC WEATHER STATIONs and simultaneous weather data for accurate irrigation management particularly in deficit irrigation management in critical situation of water shortage is recommended.

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APA: Copy

AMIRI, SAMIA, GHEYSARI, MAHDI, & MOVAVEJALAHKAMI, BITA. (2012). EVALUATION OF EFFICIENCY OF LONG-TERM WEATHER DATA IN TRICKLE AND SPRINKLER IRRIGATION MANAGEMENT. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 2(1), 1-11. SID. https://sid.ir/paper/232196/en

Vancouver: Copy

AMIRI SAMIA, GHEYSARI MAHDI, MOVAVEJALAHKAMI BITA. EVALUATION OF EFFICIENCY OF LONG-TERM WEATHER DATA IN TRICKLE AND SPRINKLER IRRIGATION MANAGEMENT. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2012;2(1):1-11. Available from: https://sid.ir/paper/232196/en

IEEE: Copy

SAMIA AMIRI, MAHDI GHEYSARI, and BITA MOVAVEJALAHKAMI, “EVALUATION OF EFFICIENCY OF LONG-TERM WEATHER DATA IN TRICKLE AND SPRINKLER IRRIGATION MANAGEMENT,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 2, no. 1, pp. 1–11, 2012, [Online]. Available: https://sid.ir/paper/232196/en

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