تأثير التغيرات المناخية على الفواقد المائية أثناء الرش

Authors

  • أمين سليمان
  • مازن سلوم

Abstract

Reducing the water losses from irrigation system is important for achieving water conservation. The effect of monthly and daily climate variations on water losses due to evaporation and wind drift during sprinkling have been investigated experimentally. Three types of sprinklers were used in this research: Al-khirat, Andlian and Rainbird40. For Al-khirat sprinkler and during irrigation season, the maximum water losses occur in August (50%), while the minimum water losses occur in May (27%). For July, the measurements showed that the water losses during daytimes were 2.5 to 3.4 times the water losses during nighttimes. The comparison between experimental and Frost and Schwalen nomograph results showed that the experimental results were always higher than the Frost and Schwalen results.

إن تخفيض الضياعات المائية في أنظمة الري له أهمية كبيرة في المحافظة على المياه. لقد تم في هذا البحث تحديد تأثير التغيرات المناخية اليومية والشهرية على الضياعات المائية نتيجة للتبخر وجرف الهواء أثناء الرش بشكل تجريبي. واستخدام لذلك ثلاثة أنواع من المرشات هي مرش الخيرات ومرش أندليان ومرش Rainbird40 . وإن دراسة الضياعات بالتبخر وجرف الهواء خلال موسم السقاية لدى استخدام مرش الخيرات أظهرت أن أكبر الضياعات حدثت خلال شهر آب 50% وأقل ضياعات حدثت خلال شهر أيار 27%. كما أن دراسة تغير الضياعات في اليوم خلال شهر تموز أظهرت أن الضياعات من الرش أثناء النهار تراوحت بين 2.5 و 3.0 مرات قيمة الضياعات أثناء الرش في ساعات الليل. وبمقارنة الضياعات المحسوبة بواسطة مخطط فروست وسكوالين مع القيم المقاسة لها، تبين أن الضياعات المقاسة أكبر بشكل واضح من الضياعات المستنتجة باستخدام هذا المخطط.

Downloads

Published

2019-01-29

How to Cite

1.
سليمان أ, سلوم م. تأثير التغيرات المناخية على الفواقد المائية أثناء الرش. Tuj-eng [Internet]. 2019Jan.29 [cited 2024Nov.23];31(5). Available from: https://journal.tishreen.edu.sy/index.php/engscnc/article/view/7178

Issue

Vol. 31 No. 5 (2009): العلوم الهندسية

Section

Articles

License

Copyright (c) 2019 ttps://creativecommons.org/licenses/by-nc-sa/4.0/

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series

 Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in  Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series   .  The Readers have the right to send, print and subscribe to the initial version of the article, and the title of  Tishreen University Journal for Research and Scientific Studies - Engineering Sciences Series     Publisher

journal uses a CC BY-NC-SA license which mean

You are free to:

  • Adapt — remix, transform, and build upon the material
  •  
  • The licensor cannot revoke these freedoms as long as you follow the license terms.

 

  • Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • NonCommercial — You may not use the material for commercial purposes.
  • ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
  • No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.