The performance of a large farmer-managed irrigation system in the Terai of Nepal.

The performance of a large farmer-managed irrigation system in the Terai of Nepal.

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Titre: The performance of a large farmer-managed irrigation system in the Terai of Nepal.
Auteur: Stevens, Daniel A.
Résumé: The objective of this program of intensive field research was to use quantitative measurements and detailed observation over a significant period of time in order to evaluate the performance of a large farmer-managed irrigation system in the Terai region of Nepal. This study sought to evaluate the 1500 hectare Sorha Mauja Irrigation System (SMIS) near Butwal, Nepal, through one year of field research. Specific measures evaluated include water use efficiency, water allocation and equity, water supply adequacy, cropping intensity and crop production. Data collected over an eight month period corresponding to the "dry season" included: climate, water supply and deliveries at all levels of the system, second and third crop season irrigations, cropping intensity, crop production and management activities. SMIS farmers face a problem of high water conveyance and delivery losses between the source and their fields during the dry season. Nevertheless, the water supply is adequate for irrigated cropping of all the cultivable land in the command area except during the period of February through May. Resolution of the water adequacy and conveyance loss problems during the third crop period may facilitate even higher annual production. (Abstract shortened by UMI.)
Date: 1991
URI: http://hdl.handle.net/10393/7652

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