À la suite de l'effondrement de l'Union soviétique, les états nouvellement formés de l'Asie centrale ont entrepris, à différents niveaux, des réformes de leurs secteurs agraires. Du point de vue de l'utilisation de l'eau d'irrigation, les réformes consistent notamment en des changements aux régimes fonciers et dans la décentralisation de la gestion du système de drainage et d'irrigation. La plupart des institutions qui, durant l'époque soviétique, géraient le système d'irrigation et de drainage ont été abolies. Cela a créé un vide institutionnel et permis le développement d’institutions au niveau local qui puissent être participatives et appartenir aux utilisateurs. Pourtant, le contexte historique et contemporain de la région pose des défis particuliers pouvant nuire à un tel développement. Les associations d'utilisateurs d'eau ou le gouvernement local gèrent l'irrigation et les systèmes de drainage au niveau local. Ces associations représentent souvent des initiatives conduites par les donateurs internationaux. Parallèlement, les institutions informelles et les modes traditionnels de coopération qui ont survécu à l'ère soviétique deviennent importants et quelques institutions créées durant cette ère demeurent toujours pertinentes. Cette recherche consiste à évaluer le rôle d’action collective dans un système de gestion d’irrigation et de drainage dans le bassin versant de la rivière Syr-Darya dans un contexte changeant concernant les droits d’usage de l'eau et de la terre. L'étude cherche à (1) saisir l'importance de l'eau d’irrigation dans les moyens de subsistance des utilisateurs dans la région de recherche; (2) explorer certaines caractéristiques des institutions formelles et informelles à travers lesquelles les fermiers dirigent des systèmes de drainage et d’irrigation; et (3) identifier les institutions qui appuient l'action collective et celles qui entravant son développement. La méthodologie de recherche repose une revue bibliographique et sur un travail de terrain dans la vallée de Ferghana, au Kirghizistan, entre le 30 avril et le 31 juillet 2008. Les résultats de la recherche sont présentés comme une étude de cas. / Following the collapse of the Soviet Union, the newly independent countries of Central Asia undertook reforms of their agrarian sectors with varying degrees of speed and depth. In general, the reforms consisted of changes in the nature of land tenure and in the decentralization of irrigation and drainage management. Through these reforms, former state management institutions were abolished leaving an institutional vacuum that presented an opportunity for the development of local-level management institutions. However, the historical context of the region poses particular challenges that may impede users to capitalize on such opportunities.     Water User’s Associations or the local administration manage irrigation and drainage systems at the local level. Water User Associations represent international donor-driven initiatives to introduce equitable, democratic and participative institutions for irrigation and drainage management. There are indications that those informal institutions and traditional modes of cooperation that survived the Soviet era are gaining importance. This study maps out the various institutions, defined as "rules in use", that farmers employ to manage the irrigation and drainage system in the Ferghana Valley within the context of changing land and water rights. The key objectives of the study are (1) to understand the importance of irrigated water for local livelihoods in the research area; (2) to explore certain characteristics of the formal and informal institutions through which farmers manage irrigation and drainage systems; and (3) to depict ways in which “collective action” in irrigation water management can be strengthened. The methodology consists of a synthesis of existing literature and fieldwork in the Ferghana Valley in Kyrgyzstan, from April 30 until 31 July, 2008. The results of the research are presented as a case study.

Magister Philosophiae - MPhil (LAS) (Land and Agrarian Studies) / Government's decision to devolve irrigation management to farmers was partly influenced by international policy imperatives, which were propounded mainly by institutions associated with the Consultative Group for International Agricultural Research (CGIAR) and the inability by the government to continue funding operation and maintenance costs. The central question of the study is to understand the effects of Irrigation Management Transfer (IMT) on productivity, operation and maintenance in the Mamina Irrigation Scheme. Interviews with various primary and secondary stakeholders that included the irrigators, local political leadership and locally-based agriculture extension officers were carried out. The interviews were aimed at getting an insight on land tenure, participation and representation of women, water and electricity supply system and pricing, effects of irrigation management arrangements on equity and productivity, understanding the irrigators' food security status, operation and maintenance arrangement after Irrigation Management Transfer (IMT). Findings of this study suggest that the existing governance arrangements have partly led to low crop productivity, increased water and electricity bill arrears, poor water distribution, change to uneconomic plot sizes, unsustainable increase in the number of irrigators, failure to organise for operation and maintenance. The key factors influencing the poor performance include poor collaboration, pumping system that utilised more electricity, inability of the irrigators to replace leaky pipes, failure of the irrigators to contribute towards electricity and water bills, failure of the irrigators to contribute towards operation and maintenance. The study identified nine challenges that affected the success of IMT. The challenges that lay at the heart of Mamina irrigation scheme were mainly caused by the poor irrigation technology design, pricing structure of electricity, water permit system, inequalities in water distribution, low gender participation and representation, non-availability of formal markets for certain crops, food insecurity, plot alloction and land disputes. Poverty analysis has shown that the irrigators' ability to escape from poverty or food insecurity is critically dependent upon their access to assets. Different assets are required to achieve different livelihood outcomes. The cycle of accumulation of utility bill arrears continued even after devolution because the same defective irrigation infrastructure was transferred to the irrigators. In the case of Mamina irrigation scheme, modernisation of the scheme was required to achieve different livelihood outcomes, but because this did not happen the recurrent utility bill arrears, low productivity and food insecurity continued to be a very serious challenge even after IMT.