|
|
|
PDF
|
|
Type:
|
Working Paper |
|
Author:
|
Vincent, Linden; Dempsey, Peter |
|
Date:
|
1991 |
|
Agency:
|
Irrigation Management Network, Overseas Development Institute, London |
|
Series:
|
Network Paper, no. 4 |
|
URI:
|
https://hdl.handle.net/10535/4587
|
|
Sector:
|
Water Resource & Irrigation |
|
Region:
|
|
|
Subject(s):
|
irrigation
water resources
|
|
Abstract:
|
"Conjunctive use is the combined and integrated management of surface and groundwater for optimal productive and allocative efficiency. At farm- or scheme-level conjunctive use is the concern of farmers and scheme managers attempting to optimise the quantity, timing and reliability of supply and maintain soil fertility over the year. At regional level the combined management of the resource is of interest to planners and water resource engineers seeking to maximise water availability, and increase the quantity and sustainability of supply in the longer term. Ideally conjunctive use of resources extends the utility of available resources, and should not be used to describe the development of one resource simply to hide shortcomings in the provision of the other resource. However, conjunctive use on irrigation schemes is often a system of 'joint use' where groundwater has developed for a variety of objectives, particulary to deal with waterlogging problems, or to compensate for failure in the surface water distribution system. Joint use has also emerged as a result of the spread of well technology outside of any specific operational programme organised by water management institutions."
|