1 AIT Asian Institute of Technology

Salt-balance studies in Lam Pao irrigation project area, Northeast Thailand

AuthorSharma, Arun Kumar
Call NumberAIT Thesis no. WA-79-30
Subject(s)Saline irrigation
Lam Pao Project
NoteA thesis submitted in partial fulfilment of requirements for the degree of Master of Engineering, School of Engineering and Technology
PublisherAsian Institute of Technology
AbstractTo study t he salt balance of Lam Pao Irrigation Project, an area of 1,600 hectare was selected with vicinity of Bangkok Yai, and study was made from 10th October 1979 to 20th January, 1980, Ground Water Contour maps of the study area were prepared and Electrical Conductivity of Ground Water was measured for salinity appraisal. It was a seasonal study only soil samples were also collected at three times i . e . days and finally after 84 days. These samples were analyzed for electrical conductivity, bulk density, saturation percentage and soil pH at the soil laboratory of Agriculture and Food Engineering Division of AIT. Results of the study indicate that there is no horizontal movement of salts in the study area, however, there is considerable vertical movement of salt due to capillary action. Because the ground water is saline, this imposes a danger towards increasing salinity of top soil during the dry season. The permeability of the soil in low, therefore, leaching of salts by irrigation or rain water will not be possible, and hence it is suggested that salts should not be allowed to come at the surface by capillary action. For these so that there is always downward movement of salt along with irrigation water, and the root zone remain free from salts.
Year1980
TypeThesis
SchoolSchool of Engineering and Technology
DepartmentDepartment of Civil and Infrastucture Engineering (DCIE)
Academic Program/FoSWater Resources Research Engineering (WA)
Chairperson(s)Apichart Anukularmphai ;Eggers, Helmut
Examination Committee(s)I, Fude
Scholarship Donor(s)Australian Government
DegreeThesis (M.Eng.) - Asian Institute of Technology, 1980


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