TY  - BOOK
AU  - Arshad,Muhammad
AU  - Goto,Akira
AU  - Murty,V.V.N.
AU  - Loof,Rainer
ED  - The Government of Netherlands, 
TI  - An analysis of a subsurface drainage for water table control in Rechna command area, Pakistan
T2  - Thesis
PY  - 1990///
CY  - Bangkok
PB  - Asian Institute of Technology
KW  - Water table
KW  - Pakistan
N1  - A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology; Thesis (M.Eng.) - Asian Institute of Technology, 1990
N2  - Waterlogging is one of the main problems besetting Agriculture in Palclstan.  In this study a part of Rechna Doab area, Punjab, Pakistan, suffering from  waterlogging problem has been selected. Where a subsurface drainage system has  already existed there and is under operation.  A simulation model was developed to analyze the response of the ground  water to various recharge and discharge parameters. Daily data of twenty nine  months was used for identification of the model parameters and for verification  of the model applicability by making coincidence between computed and observed  water table depth.  Model simulation was done to find the required drainage rate as a main  parameter of the subsurface drainage system using twenty years daily rainfall,  irrigation and evapotranspiration data. The problems of the present drainage  system installed in the area were analyzed and the direction of improvement of  the present system was pointed out. Economical drain depths and spacings to  control the water table for the improvement of waterlogging conditions were  analyzed.
UR  - http://203.159.5.9/ait-thesis/detail.php?q=B18582
ER  -