Resumo

CHILE ASIMBAYA, Blanca Maritza  e  ORTIZ CALLE, Randon Stalin. Dinámica de la distribución del agua en el sistema de riego Tumbaco en Ecuador. Siembra [online]. 2021, vol.8, n.2, e3074. ISSN 2477-8850.  https://doi.org/10.29166/siembra.v8i2.3074.

The water distribution to the farmers is the result of the interaction between the irrigation water association, farmers, operation and maintenance of the hydraulic infrastructure. The objective of the research was to identify technical and social aspects linked to the water distribution at the secondary branch canals of the Tumbaco irrigation system. Field information was collected through surveys and interviews to the main actors and measurement of flows in the canals. The main results: i) the construction of the irrigation system began in 1909 by the inhabitants of Tumbaco; in 1944, the “Caja Nacional de Riego” completed the construction of the canal to cover an irrigable area of 2,000 ha; in 2017, the irrigated area was 1,050 ha; the water user board has managed the system since 2001; ii) the hydraulic infrastructure of the system has reached its time life (75 years), it has not been rehabilitated and the gates does not allow the regulation of the discharges from the main to the secondary canals; iii) regarding the administration, the regulations are not followed in practice. In conclusion, in the Tumbaco irrigation system there is no equity in the water distribution to the farmers because the infrastructure of the system has reached its lifetime, the statute and regulation norms are not accomplished, the rights have not been updated to the needs of the users as a result of the existing process of deterritorialization.

Palavras-chave : infrastructure; flows; board of irrigators; regulations; water rights.

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