Estimation water requirement and irrigation scheduling of the Tree Elaeagnus Angustifolia L. as Urban Green Space
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
This study was carried out in order to investigate and determine the water requirement and irrigation scheduling in the Vardij district of Tehran province. In order to calculate the reference evapotranspiration, the FAO Penman-Monteith equation was utilized and WUCOLS III method was recruited to vegetation coefficient. The climate data of Chitgar Station (from 2008 to 2017) was used to calculate the reference evapotranspiration and effective rainfall. The results showed that effective rainfall in the studied area was not sufficient to provide the required water for the plant and there is a need for additional irrigation during the growing season. The highest amount (i.e. 41.57 mm) of evapotranspiration of Elaeagnus angustifolia L. was observed in July and the lowest amount of evapotranspiration in January (i.e. 6.65 mm) was measured. The total amount of evapotranspiration was 266.31 mm. The irrigation with a amount of 12.28 mm begins from May 22 and ends on Octobre 7 with a value of 10.23 mm. The maximum amount of required irrigation (i.e. 20.23 m) was applied from July 7 to july 22 and the lowest amount of required irrigation (i.e. 10.23 mm) applied from Octoble 7 to Octoble 22.
Keywords:
Language:
Persian
Published:
Iranian Journal of Irrigation & Drainage, Volume:13 Issue: 6, 2020
Pages:
1869 to 1878
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