Estimation and determination of spatial pattern of Apple tree water requirement in Iran

Document Type : Research Article


1 Geography Department, Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevr. Iran.

2 Assisstant Professor, Faculy of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar

3 Assistant Professor, Soil Conservation and Watershed Management Research Institute, Tehran


Evaluation of water requirement in designing irrigation systems and water supply in agriculture is important. The aim of this study was to estimate and determine the spatial pattern of water requirement of apple tree using weather stations statistics from 1985 to 2013 in apple tree cultivation areas in Iran. Initially, annual reference evapotranspiration was estimated based on the FAO, Penman-Monteith model, In the following, the stages of growth the summer apple Kohanz crab and autumn apple Red-Delicious were identified. Eto calculation annual results and water requirement of growth stages were identified using ArcGIS10.2 as a spatial pattern for each variety. The results showed that the annual ETo in the North-Eastern and Southern regions of the apple cultivation area cultivar reaches more than 2000 mm. The summer apple Kohanz crab has less water requirement than autumn apple Red-Delicious varieties and the middle stage of growth in apple trees have the highest water requirement. The spatial changes in evapotranspiration and water requirement apple trees are due to altitude factor. From the north to the south and from the West to the East, the apple cultivation areas in Iran increases the amount of water requirement.


Main Subjects

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Volume 5, Issue 1
April 2018
Pages 149-160
  • Receive Date: 26 June 2017
  • Revise Date: 27 September 2017
  • Accept Date: 10 October 2017
  • First Publish Date: 21 March 2018
  • Publish Date: 21 March 2018