Role of Reservoir Operation in Sustainable Water Supply to Subak Irrigation Schemes in Yeh Ho River Basin: Development of Subak Irrigation Schemes: Learning from Experiences of Ancient Subak Schemes for Participatory Irrigation System Management in Bali, 1st Edition (Paperback) book cover

Role of Reservoir Operation in Sustainable Water Supply to Subak Irrigation Schemes in Yeh Ho River Basin

Development of Subak Irrigation Schemes: Learning from Experiences of Ancient Subak Schemes for Participatory Irrigation System Management in Bali, 1st Edition

By Mawiti Infantri Yekti

CRC Press

200 pages

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Quantitative research with respect to the combination of engineering and socialcultural- religious aspects based on the Tri Hita Karana philosophy in Subak irrigation schemes is original in the field of land and water development. A scenario analysis needs a good and careful system approach. Based on a Generic Algorithm the RIBASIM model was applied using the dependable 80% of discharge and shifting the start of land preparation. The results provide evidence that the cropping pattern of the fifth scenario results in an overall optimal agriculture production of the Subak schemes.

The recoverable flow considered in the river basin scheme model plays an important role in the optimisation. Nevertheless, if a normal hydro-climate occurs, the other scenarios, especially the first scenario, can be applied as well. When the indigenous knowledge of farmers is compromised with present day knowledge of agricultural and technological developments, capability of these farmers increases, thus reflects the applicability of the Tri Hita Karana philosophy on harmony among people and harmony among people and nature.

Table of Contents

1 Introduction

2 Background and objectives

2.1 Profile of the region

2.2 Water resources

2.3 Definition of Subak irrigation schemes

2.4 Subak schemes

2.5 Subak cultivation area

2.6 Previous studies on water management of Subak irrigation schemes

2.7 Problem description

2.8 Objectives

3 Development of Subak irrigation schemes: learning from experiences of ancient Subak schemes for participatory irrigation system management in Bali

3.1 Introduction

3.2 Method and discussion

3.3 Result and conclusion

4 Subak in the south of Bali: discharge analysis for a system approach to river basin development with Subak irrigation schemes as a culture heritage

4.1 Introduction

4.2 Study of a river basin

4.3 Managed flow approach in Yeh Ho River Basin

4.4 Method and material

4.5 Results and discussion

4.6 Conclusion

5 Hydrology and hydraulic approaches: irrigation-drainage of Subak irrigation schemes, a farmer's perspective over a thousand years

5.1 Introduction

5.2 Methodology

5.3 Results and discussion

5.4 Conclusion

6 Model simulations and optimisation technique

6.1 Model categorization

6.2 Modelling of Subak schemes related to Tri Hita Karana philosophy

6.3 Multiple purpose reservoir operation

6.4 Scenario analysis in Subak schemes

6.5 Simulations with the RIBASIM model

6.6 Application aspects of the RIBASIM model

6.7 Yeh Ho River system as input in the RIBASIM model

7 Scenario analysis

7.1 Hydrologic and hydraulic analysis

7.2 Advanced irrigation node in RIBASIM

7.3 Results of economic evaluation of storage allocation

7.4 Scenario analysis, simulation and optimisation of Yeh Ho River Basin

7.5 Summary of the simulation and optimisation of Yeh Ho River Basin

8 Evaluation

8.1 Recommendations for river basin development

9 References


A. Abbreviations and acronyms

B. Symbols

C. Surface runoff analysis as inflow to the Telaga Tunjung Reservoir

D. Analysis of rainfall data

E. Reference evapotranspiration

F. Hydraulic profile of outlets

G. Reservoir and its hydraulic structures

H. Information on reservoir sedimentation

I. Infiltration and percolation

J. Results of the measurements in a paddy terraces block

K. Graphs of scenario simulations with RIBASIM

About the Author

After her undergraduate and graduate degrees, Mawiti Infantri Yekti has taught and supervised undergraduate students on several subjects related to water science engineering, such as irrigation, fluids mechanics, hydraulics, and hydrology. In 2003 she started teaching as assistant lecturer for graduate students on the subjects advanced hydrology, earth fill dams and groundwater movement and in 2004 became involved as an expert in consultancies. Since then she has been involved in more than 20 water engineering design projects.

Mawiti was responsible for two divisions in the Department of Civil Engineering in Udayana University. She was head of the reading room (small library) between 2004-2010, and secretary in the laboratory of hydrology and hydraulics from 2004 until 2008. She is a member of three professional organizations: Indonesian National Committee on Large Dams (INACOLD), Indonesian Commission on Irrigation and Drainage (INACID), Indonesian Association of Hydraulic Engineers (HATHI), and has one expertise certificate of the Indonesian Society of Civil and Structural Engineers (HAKI) in the specialization of water resources engineering.

She has 15 publications in international/national proceedings and national journals, and two accepted papers for international journals.

About the Series

IHE Delft PhD Thesis Series

IHE Delft PhD programme leads to a deepening of a field of specialisation. PhD fellows do scientific research, often with conclusions that directly influence their region. At IHE Delft, PhD researchers from around the world participate in problem-focused and solution-oriented research on development issues, resulting in an inspiring research environment. PhD fellows work together with other researchers from many countries dealing with topics related to water and the environment.

PhD research is often carried out in the ‘sandwich’ model. Preparation and final reporting – the first and last portion of the programme – are carried out in Delft, while actual research is done in the fellow’s home country, under co-supervision of a local institute. Regular contacts with the promotor are maintained through visits and long-distance communication. This enables researchers to employ solutions directly to problems in their geographical region.

IHE Delft PhD degrees are awarded jointly with a university. The degrees are highly valued and fully recognised in all parts of the world.

Learn more…

Subject Categories

BISAC Subject Codes/Headings:
SCIENCE / Environmental Science
TECHNOLOGY & ENGINEERING / Environmental / Water Supply