subsurface drainage
1.The purpose of this web site is to share my experiences with workers in any country on water logging in agricultural lands, irrigation induced soil salinity, subsurface drainage for agriculture (horizontal and vertical), reuse of groundwater, ground-water hydraulics, (geo)hydrology, rainfall and surface runoff relations, reclamation and improvement of water logged saline, salty, sodic alkaline, and acid sulphate soils, plant growth, crop production and responses as well as statistical analysis consisting of segmented linear regression and cumulative frequency distributions.
2.Determining optimal space and depth of the subsurface plastic drainage tubes is a main task in planning and design of a drainage system.
3.Several methods of determining the optimal space and depth of subsurface plastic drainage tubes are explicated and summarized in this paper.
