| Author | Khanal, Puspa Raj |
| Call Number | AIT Thesis no.WA-94-4 |
| Subject(s) | Irrigation water--Nepal--Narayani
|
| Note | A thesis submitted m partial fulfillment of the requirements for the degree of master of
engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | This study is concerned with the integrated use of surface water- groundwater for irrigation
planning in central Terai plain of Narayani zone. A chance - constrained linear programming
model involving the minimization of total cost of water supply has been developed for the
purpose. The management plan thus derived has been evaluated by the distributed parameter
groundwater modelling.
The result from the optimization model indicate that the over all reliability of the system
largely depends upon the surface water reliability of the basin.As the reliability of the system
increases,more groundwater from both shallow and deep wells has to be pumped to meet the
irrigation demand. When the reliability of the sources is 80%, groundwater has to be pumped
throughout the year where as at 50% or lower reliability, irrigation demand can be met by the
surface water only during rainy seasons (Jul-Sep). However, irrigation demand on winter and dry
seasons mostly depends on groundwater even at low reliability of the surface water.
Absence of water from Nepal Eastern Canal (NEC) in the basin has large impact on the
groundwater management and the irrigation management plan has to be revised in such cases
where as availability of NEC at full supply does not provide any further scope of increasing
agricultural area or the cropping intensity. However the excess water can contribute significantly
to the downstream command areas of the NEC. The proposed management plan is satisfactory
from groundwater management point of view but increasing groundwater extraction beyond the
proposed plan is not acceptable especially on central and southern zone. |
| Year | 1994 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Gupta, Ashim Das ;Onta, Pushpa Raj
|
| Examination Committee(s) | Loof, Rainer ;Ammentorp, H. C.
|
| Scholarship Donor(s) | Government of Norway |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1994 |