The greater competing demand for water requires an efficient use of water resources. Therefore, an optimum management is necessary in order to deal with the constraining factors. In African countries, irrigated agriculture is the largest user of surface water resources. Nevertheless, recent assessments in small-scale surface irrigation schemes resulted in poor performance indicators: Water use efficiency indicators of existing schemes are below 50 percent, owing to inadequate management modes. The paper sheds the light on the potential development of a decision-support system based knowledge with the Mapping System and Services for Canal Operation Techniques approach, merged with the MIKEHydro Basin model as a versatile and flexible framework conceived for a large variety of applications in small-scale irrigation. The model aims to improve water service, increase irrigation efficiency, comply with socio-economic objectives at country level. In order to address the prevailing heterogeneity of small-scale irrigation scheme, numerous variables are adjusted in the model, in terms of cropping patterns, climate data, and irrigation time. The evaluation of established water balance under different scenarios showed that tackling supply-driven scheduling and distributive issues significantly increases efficiency. Nevertheless, water allocation according to socio-economic objectives of food security and market security implies trading off the efficiency objectives.
Irrigation development is essential for reducing vulnerability to water resource scarcity, food insecurity, and climate change impacts in Egypt. The centralized irrigation development must, however, overcome the challenges of the diversity of smallholders and the pre‐existing, individualistic irrigation management. The purpose of this paper is to examine the farmers' characteristics that influence the design and success of irrigation improvement programmes in the Old Lands of Egypt. The paper investigates this issue from the perspectives of farmers by analysing farm features, agricultural practices, irrigation practices, and satisfaction with water services. The clustering method is applied to create farmer groups within the geographical area of the programme and seek consistent differences that affect the outcome of irrigation improvement. The results show that farmers are less diverse in their agrotechnology and more heterogenous in terms of capacities, livelihood sources, and land tenure structures. The article argues that grouping methods to deploy improved irrigation infrastructure should give more consideration to the farmers' individual features. Programmes intended to replicate such irrigation development or leverage the existing results should address these particularities to create a socially adaptive environment for future irrigation investment in Egypt.
Irrigation remains a critical input into farming and, therefore, it remains a proxy for food security and poverty alleviation in developing countries. Despite their role in economic growth and the received investment, irrigation schemes are still underperforming. Among many irrigation schemes, transferring more management responsibilities to farmers proved to be a viable path toward improving performance. However, the large diversity of implementation strategies makes evaluation difficult, while its well-demonstrated benefits have paramount importance to convince reluctant smallholders to take additional roles. In order to address this gap, we analyze the effects of participation on farming outcomes (yield, revenue, net profit) by estimating the treatment effect. We present the case study of a Mubuku small-scale irrigation scheme, Uganda. We provide a framework to construct the Farmers Participation Index while distinguishing farmers into participating and not participating groups. The effects of participation are investigated through econometric methods including nonparametric and semiparametric estimation methods such as a difference in means, a regression adjustment, propensity score matching, and entropy balancing. The analysis reveals a positive and significant treatment effect of participation on farming outcomes. The obtained results endorse the efforts of governmental programs to foster responsibility transfer and the farmers’ role in irrigation management. A strong causal relationship between management and profitability provides incentives for farmers to engage in participation.
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