Hydraulic and Operational Performance of Irrigation Schemes in View of Water Saving and Sustainability (Record no. 1444)
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| 000 -LEADER | |
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| fixed length control field | 02780 a2200349 4500 |
| 001 - CONTROL NUMBER | |
| control field | 1138027677 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250317100403.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250312042015xx eng |
| 020 ## - INTERNATIONAL STANDARD BOOK NUMBER | |
| International Standard Book Number | 9781138027671 |
| 037 ## - SOURCE OF ACQUISITION | |
| Source of stock number/acquisition | Taylor & Francis |
| Terms of availability | GBP 54.99 |
| Form of issue | BB |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | 01 |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | KNB |
| Source | thema |
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| Subject category code | RBK |
| Source | thema |
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| Subject category code | TVB |
| Source | thema |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | TN |
| Source | thema |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | KNBW |
| Source | bic |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | RBK |
| Source | bic |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | TVB |
| Source | bic |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | TN |
| Source | bic |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | SCI011000 |
| Source | bisac |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | SCI026000 |
| Source | bisac |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | TEC003000 |
| Source | bisac |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | TEC009020 |
| Source | bisac |
| 072 7# - SUBJECT CATEGORY CODE | |
| Subject category code | TEC010030 |
| Source | bisac |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Zeleke Agide Dejen |
| 245 10 - TITLE STATEMENT | |
| Title | Hydraulic and Operational Performance of Irrigation Schemes in View of Water Saving and Sustainability |
| Remainder of title | Sugar Estates and Community Managed Schemes in Ethiopia |
| 250 ## - EDITION STATEMENT | |
| Edition statement | 1 |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Name of publisher, distributor, etc. | CRC Press |
| Date of publication, distribution, etc. | 20150409 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 180 p |
| 520 ## - SUMMARY, ETC. | |
| Expansion of summary note | The rate of global increase in water abstraction for irrigation has been declining since the 1970’s due to declining potentials for large and medium-scale irrigation developments, and is expected to further decline in the next decades. As such the significant proportion of the expected increase in production would have to be supplied from existing irrigated and /or cultivated lands. This in turn could be achieved by enhancing land and water productivity through improved performance and optimal operation and maintenance. With less than 15% of over 5 million ha irrigation potential harnessed, irrigation devolvement in Ethiopia remained low. Over 70% of the developed irrigation in the country belongs to small-scale irrigation serving smallholder farmers. While accelerated development of new irrigation, particularly of large and medium-scale schemes is relevant in Ethiopia, ensuring the performance and sustainability of existing schemes is also equally important. The existing irrigation schemes in Ethiopia are generally characterized by an overall performance and technical sustainability levels of below expectation. This thesis evaluates the performance of two large-scale (Wonji-Shoa and Metahara) and two community-managed (Golgota and Wedecha) irrigation schemes located in the Awash River Basin of Ethiopia. The study focussed on hydraulic/water delivery performance in the large-scale schemes, and on comparative and internal irrigation service (utility) evaluation in the community-managed schemes. Water delivery performance was evaluated using routine data and hydrodynamic modelling. Farmers’ utility was evaluated using qualitative responses of water users. Major performance challenges in each category of schemes were addressed and operational/water management options for improvement were identified. |
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