Journal of Experimental Agriculture International, ISSN: 2457-0591, ISSN: 2231-0606 (Past),Vol.: 20, Issue.: 4
Drain Envelopes for Problematic Calcareous Soils of Irrigated Agricultural Lands in Egypt
Gehan A. H. Sallam1* 1Drainage Research Institute (DRI), National Water Research Center, Cairo, Egypt.
Gehan A. H. Sallam1*
1Drainage Research Institute (DRI), National Water Research Center, Cairo, Egypt.
(1) Mariusz Cycon, Professor, Department and Institute of Microbiology and Virology, School of Pharmacy, Division of Laboratory Medicine, Medical University of Silesia, Poland.
(2) Crepin Bi Guime Pene, Professor, Director of Research & Development, SUCAFCI-SOMDIAA, Ivory Coast.
(3) Daniele De Wrachien, Professor, State University of Milan, Italy.
(1) Ahmed Karmaoui, Southern Center for Culture and Sciences, Morocco.
(2) Ružica Stričević, University of Belgrade, Serbia.
(3) Miguel Aguilar Cortes, Universidad Autonoma Del Estado De Morelos, Mexico.
(4) H. P. Ritzema, Wageningen University, The Netherlands.
Complete Peer review History: http://www.sciencedomain.org/review-history/23142
Envelope materials are used for surrounding subsurface drain pipes commonly installed to reclaim waterlogged and salt-affected lands to prevent entry of soil particles into drains and to constitute a medium of good permeability around the pipe and therefore reduce entrance resistance. In calcareous soils prone to the reduction of drainage capacity as a result of high clogging, determining adequate envelope materials is a crucial issue under Egyptian conditions. The study was conducted on a calcareous soil with a high risk of calcium carbonate precipitation. Four drain-envelope combinations of subsurface drainage systems were tested in an experimental field. It came out that granular and pre-wrapped drain envelopes, with a normal grade of 10cm/100m, were the best material regarding their hydraulic and mechanical performance for sub-surface drainage in calcareous soils.
Subsurface drainage; envelope material; chemical precipitation; calcium carbonate; permeameter test; geotextile.
Full Article - PDF Page 1-13
DOI : 10.9734/JEAI/2018/39072Review History Comments