تأثير تغير الكثافة الظاهرية للتربة مع العمق في تقدم جبهة الابتلال تحت مصدر تنقيط خطي
Other Title(s)
The effect of changing soil bulk density with depth on wetting front advance under a trickle line source
Joint Authors
زياد أيوب سليمان
حقي إسماعيل ياسين
محمد طارق محمود
Source
مجلة جامعة دمشق للعلوم الهندسية
Issue
Vol. 28, Issue 2 (31 Dec. 2012), pp.327-336, 10 p.
Publisher
Publication Date
2012-12-31
Country of Publication
Syria
No. of Pages
10
Main Subjects
Earth Sciences, Water and Environment
Abstract EN
Among the factors affecting the movement of water in the soil are soil properties (structure and texture).
The rate of components of soil minerals and organic material has an effect on its bulk density.
As the surface soil has organic matter more than subsurface soil in general, the bulk density increases with soil depth, so the research aims to study the effect of changing soil bulk density with depth on wetting front advance under a trickle line source.
The experimental work included a nine laboratory tests for monitoring the advancement of the wetting front with time, The water advance and water distribution measurement are carried out for three cases of the soil profile with the change of bulk density along soil depth (0.00923,0.00462,0) gm/cm 3 /cm: first case with the soil changed bulk density from 1.2 gm/cm 3 at the soil surface and gradually to 1.8 gm/cm 3 at a maximum depth of the profile, the second case with the soil changing bulk density from 1.5 gm / cm 3 to 1.8 gm / cm 3 , and the third case homogeneous soil with bulk density 1.2 gm / cm 3 , and using three application flow rates 1.3,2.6,3.9 cm 3 / min / cm.
The study showed that with the increase in the change of bulk density along soil depth there is a small increase in horizontal advance and almost non-existent increase in vertical advance while they are clear and tangible in diagonal advance.
It also showed that the amount of the increase in the vertical advance is greater than in the horizontal advance and be could be in diagonal advance when increasing the application flow rate, and all of the horizontal advance, vertical advance and the diagonal advance of the wetting front increase with the decrease of the application flow rate when applied in the same volume of water.
American Psychological Association (APA)
حقي إسماعيل ياسين ومحمد طارق محمود وزياد أيوب سليمان. 2012. تأثير تغير الكثافة الظاهرية للتربة مع العمق في تقدم جبهة الابتلال تحت مصدر تنقيط خطي. مجلة جامعة دمشق للعلوم الهندسية،مج. 28، ع. 2، ص ص. 327-336.
https://search.emarefa.net/detail/BIM-751802
Modern Language Association (MLA)
حقي إسماعيل ياسين....[و آخرون]. تأثير تغير الكثافة الظاهرية للتربة مع العمق في تقدم جبهة الابتلال تحت مصدر تنقيط خطي. مجلة جامعة دمشق للعلوم الهندسية مج. 28، ع. 2 (2012)، ص ص. 327-336.
https://search.emarefa.net/detail/BIM-751802
American Medical Association (AMA)
حقي إسماعيل ياسين ومحمد طارق محمود وزياد أيوب سليمان. تأثير تغير الكثافة الظاهرية للتربة مع العمق في تقدم جبهة الابتلال تحت مصدر تنقيط خطي. مجلة جامعة دمشق للعلوم الهندسية. 2012. مج. 28، ع. 2، ص ص. 327-336.
https://search.emarefa.net/detail/BIM-751802
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 334-335
Record ID
BIM-751802