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Please use this identifier to cite or link to this item:
http://hdl.handle.net/1834/1293
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| Title: | An integrated river basin planning approach – Nyando case study in Kenya |
| Authors: | Njogu, A.K. |
| ASFA Terms: | Resource management
River basins |
| Issue Date: | 2002 |
| Citation: | 1st WARFSA/WaterNet Symposium: Sustainable Use of Water Resources, Mozambique : Maputo, Maputo, p. 1-11 |
| Abstract: | The river basin has long been acknowledged as the appropriate unit of analysis for water resources
management and has also been named by the United Nations Conference on Environment and
Development (UNCED 1992) as the logical unit for integrated water resources management in
Agenda 21, chapter 18. The comprehensive methodology framework for analysis structures the
decision making process, starting with the problem identification, through the weighing of various
options to the final selection of the most appropriate policy. The integrated planning approach
methodology is applied to the 3600 km2 Nyando river basin in western Kenya, one of the sub-basins
that drain into Lake Victoria in Eastern Africa. Statistical methods used to check the adequacy and
reliability of the available hydrometeorological records revealed existence of trends, inconsistencies
and inhomogeneities in some the observational data series. The modular structure of the
computational framework consisted of modules for estimation of water demands for irrigation and
public water supply, a river basin simulation and allocation model, a module for yield reduction and
damages due to agricultural demand shortages and a module for incorporating investments and
benefits in a given timeframe, assessing the impacts in terms of economic indicators. Various
possible development strategies are formulated and evaluated based on the specific objectives of
enhancing social equity, efficient economic growth, environmental conservation and efficient
resource allocation and use, through multi-criteria analysis. Performance measures are used to
evaluate the alternative strategies in light of the multiple objectives. The economic strategy is found
to dominate the other strategies under different stakeholders priorities for the specific objectives,
although not robust under all analysis conditions. Institutional arrangements largely determine
whether objectives can be achieved in practice. The existing institutional framework for water
resources planning and management is outlined together with the desired situation. Remedial
actions proposed to fill the gap between existing and desired situation in future are outlined. |
| URI: | http://hdl.handle.net/1834/1293 |
| Appears in Collections: | Conference Papers
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