Strategies to Cope with Risks of Uncertain Water Supply in Spate Irrigation Systems : Case Study: Gash Agricultural Scheme in Sudan book cover
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Strategies to Cope with Risks of Uncertain Water Supply in Spate Irrigation Systems
Case Study: Gash Agricultural Scheme in Sudan




ISBN 9780367465827
Published March 6, 2020 by CRC Press
134 Pages

 
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Book Description

Flood based irrigation in particular spate irrigation relies on variable flood scenarios occurring every year. Management of spate flood for spate irrigation must cope with the variability and uncertainty of water supply. Coping with water supply risks is often the only way to harness the opportunities for a productive use of water in arid environment. Integrating and strengthening community responses into irrigation policies and improvement plans could ensure sustainable and productive spate irrigated systems that can achieve food security for the poor population. This research analyses and evaluates risks and coping strategies developed by farming communities in the Gash spate irrigation system in Sudan, Eastern Africa. The research has synthesized different coping strategies developed by farmers, water user associations and water managers to cope with low, high and untimely flood risks. The research provide different frameworks that can assist with the identification of risk sources, pathways and propagation as well as evaluation of locally developed strategies at field, secondary and intake systems. The findings of this study contribute to scarce knowledge on spate irrigation system and provide scientifically sound and evidence-based insights to aid informed policy and decision making to improve productivity and sustainability of the spate irrigation systems.

Table of Contents

1 Introduction
1.1 Spate irrigation
1.2 Risk of uncertain water supply
1.3 Strategies to cope with risk
1.4 Problem statement
1.5 Objectives
1.6 Case study area
1.7 Methods
1.8 Thesis outline

2 Risks of uncertain water supply in spate irrigation
2.1 Introduction
2.2 Data and methods
2.3 Results and discussion
2.4 Conclusions

3 Adaptation strategies to cope with low, high and untimely floods: Lessons from the Gash spate irrigation system, Sudan
3.1 Introduction
3.2 Data and methods
3.3 Results & discussion
3.4 Conclusion

4 Irrigation performance under alternative field designs in a spate irrigation system with large field dimensions
4.1 Introduction
4.2 Materials and methods
4.3 Results and discussion
4.4 Conclusion

5 Flexibility as a strategy to cope with uncertain water supply in spate irrigation
5.1 Introduction
5.2 Conceptual framework for flexibility in spate irrigation systems
5.3 Flexibility and real options in times of high, low and untimely floods
5.4 Conclusion

6 Conclusions and recommendations
6.1 General
6.2 Conclusions
6.3 Main contribution
6.4 Recommendation for further research

Appendices
Appendix 3-I 1
Appendix 3-I 2
Appendix 3-I 3

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Author(s)

Biography

Ms. Eiman Fadul Bashir is an Assistant Professor at the Hydraulic Research Centre in Sudan with specialization in hydrology and hydraulic Engineering. She has conducted many applied research studies related to several aspects of irrigation water management, sedimentation in irrigation systems, design of irrigation systems and hydraulic structures, and rural water supply. She led SIRGPA project in Sudan, Funded by IFAD and implemented by UNESCO-IHE Institute and local partners. Ms. Eiman was the winner of the UNESCO Keizo Obuchi Research Award in 2008. She worked as a guest lecturer at Water, Engineering and Development Centre (WEDC) at Loughborough University in UK and contributed to the capacity building of young professionals on irrigation and water management under drought and water scarcity at the UNESCO-IHE Institute for water education, The Netherlands.