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Farmer participation in irrigation – 20 years of experience and lessons for the future
Springer Science and Business Media LLC - Tập 11 - Trang 103-118 - 1997
This article examines trends in the understandingof and policies toward farmer participation in irrigationmanagement over the past 20 years, with special attention toexperiences with induced participation and management transferprograms in the Philippines, Sri Lanka, Pakistan, Senegal,Columbia Basin USA, and Mexico. Key lessons relate to the valueof social organizers as catalysts; the role of the ...... hiện toàn bộ
Influence of Cultural Practices on the Performance of Long Level Basins in Egypt
Springer Science and Business Media LLC - - 2001
Several field studies were conducted tobetter understand the influence of culturalpractices, inflow rate and field conditionson the performance of modern surfaceirrigation systems in Egypt. Field datawere collected on wheat and cotton underEgyptian conditions in order to estimateinfiltration, roughness and performanceparameters. Tests were made with a varietyof inflow rates and a variety ofcross-s...... hiện toàn bộ
Đánh giá độ nhạy của tham số và hiệu suất thực địa của mô hình SIDRA Dịch bởi AI
Springer Science and Business Media LLC - Tập 9 - Trang 279-296 - 1995
Mô hình giả lập SIDRA dựa trên một giải pháp nửa phân tích và nửa số cho phương trình Boussinesq. Mô hình này được phát triển dựa trên các kết quả lý thuyết và thực nghiệm thực địa với mục tiêu dự đoán chính xác cả lưu lượng đỉnh thoát nước và lưu lượng hồi phục. Các khía cạnh lý thuyết và các phương trình cơ bản của mô hình được trình bày cho trường hợp tổng quát nhất, nơi cả tính chất vật lý của...... hiện toàn bộ
#Mô hình SIDRA #phương trình Boussinesq #độ nhạy tham số #thoát nước #hiệu suất thực địa
The impact of small-scale irrigation on household food security: The case of Filtino and Godino irrigation schemes in Ethiopia
Springer Science and Business Media LLC - Tập 22 - Trang 145-158 - 2008
Ethiopia’s irrigation potential is estimated at 3.7 million hectare, of which only about 190,000 ha (4.3% of the potential) is actually irrigated. There is little information on the extent to which the so far developed irrigation schemes have been effective in meeting their stated objectives of attaining food self-sufficiency and eradicating poverty. Therefore, the aim of this paper is to identify...... hiện toàn bộ
Inverse method for operational control of canal systems
Springer Science and Business Media LLC - Tập 9 - Trang 163-183 - 1995
A non-linear explicit inverse solution method for the operational control of remotely controlled canal systems is presented. The model accounts for canal seepage, turnout flows (point sink), control structures with steeply varying and/or discontinuous discharge characteristics. The governing unsteady flow equations are solved backward both in space and time. For each space interval, the use of fin...... hiện toàn bộ
Multiple-Use Management in a Large Irrigation System: Benefits of Distributed Secondary Storage
Springer Science and Business Media LLC - Tập 18 - Trang 57-71 - 2004
Large-scale canal irrigation projects are commonly seen as profligate users of water. Their low water productivity has been attributed by many authors to deficiencies in management or to actions by farmers to circumvent management control over water distribution. Inadequate design has sometimes been cited as a contributing factor, but the relationship between design and manageability has received ...... hiện toàn bộ
Equity of water distribution along secondary canals in Punjab, Pakistan
Springer Science and Business Media LLC - Tập 6 Số 2 - Trang 161-177 - 1992
The River Wadu role play — ten years experience
Springer Science and Business Media LLC - Tập 3 - Trang 281-308 - 1989
This paper describes a role playing planning exercise that has been used for training agriculturists, engineers and agricultural economists for more than ten years. It sets out the objectives and key features of the exercise and the experience that has been gained in its use. The exercise has been found to successfully test and integrate subject matter expertise acquired from formal teaching. It a...... hiện toàn bộ
On reliability in irrigation service preliminary concepts and application
Springer Science and Business Media LLC - Tập 13 - Trang 77-105 - 1999
Without doubt the performance indicator that has so far received least attention in irrigation is the reliability of irrigation service. A review of reliability approaches as reflected in the literature is made and the analysis leads to propose a new conceptual framework for reliability of irrigation. The reliability of irrigation service is defined as the degree to which the irrigation system, an...... hiện toàn bộ
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