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UNESCO-IHE Institute for Water Education, Delft (2020)

Assessing the dynamics of private smallholder irrigation using sand river aquifers in semi-arid lands : A case study of different farming systems along the ephemeral Olkeriai River in Kajiado, Kenya

Karimba, Benson Mutuma

Titre : Assessing the dynamics of private smallholder irrigation using sand river aquifers in semi-arid lands : A case study of different farming systems along the ephemeral Olkeriai River in Kajiado, Kenya

Auteur : Karimba, Benson Mutuma

Université de soutenance : UNESCO-IHE Institute for Water Education, Delft

Grade : Master of Science (MS) 2020

Résumé partiel
Smallholder irrigation in many Sub-Saharan Africa countries is increasingly being driven by individual farmers using private investments and without government support. These farmers are making use of easily accessible water resources in sand river aquifers found in semi-arid areas to grow high-value market crops using low-cost technologies. However, little is known about the characteristics of these farming systems and the challenges they face along their development pathways. There is need therefore to determine the drivers of such irrigation development and understand how they are affected by externalities. Under the NaBWIG project, research was carried out along the Olkeriai sand river in Kajiado Kenya to assess the dynamic characteristics of these private smallholder farming systems making use of shallow sand river aquifers for irrigation. Quantitative and qualitative methods were used to first collect primary data on the farm plots and develop a farm typology, after which in-depth interviews were carried out on a sample of plots in each category to determine irrigation drivers and challenges. Three farm systems were identified based on their resource endowment and management arrangement ; low resource individual farms, medium to high resource individual farms and partnership farms. The main drivers of irrigation development in the area were availability of water, availability of land and access to markets. Farmers faced challenges which included pests and diseases, lack of support networks, exploitation by brokers, conflicts, crop damage by wildlife and water shortages.

Sujets  : smallholder irrigation semi-arid areas water resources land use socio-economic aspects Kenya

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Page publiée le 21 avril 2021