Irrigation in the Dominican Republic
| Irrigation in the Dominican Republic | |
|---|---|
| Land area | 48,400 km2 |
| Agricultural land | 76% |
| Cultivated area equipped for irrigation | 17.2% |
| Irrigated area | 280,000 ha |
| Systems | Surface irrigation: 270,000 ha |
| Share of irrigated agriculture in GDP | 13% (2008) |
| Annual investment in irrigation | 100 million USD |
Irrigation in the Dominican Republic (DR) has been an integral part of DR agricultural and economic development in the 20th century. Public investment in irrigation has been the main driver for irrigation infrastructural development in the country. Irrigation Management Transfer to Water Users Associations (WUAs), formally started in the mid-1980s, is still an ongoing process showing positive signs with irrigation systems in 127,749 ha (46% of total irrigated land in the country), being managed by 41,329 users (57% of all users). However, the transfer process and the performance of WUAs are still far from ideal. While WUAs show a significant increase in cost recovery, especially when compared to low values in areas under state management, a high subsidy from the government still contributes to cover operation and maintenance costs in their systems.
Water demand for irrigation is 7,340.41 million m3/year which is 82% of the total demand (8,891,45 million m3/year). Irrigation demand is covered mostly by surface water, and partially (13%) by groundwater. About 76% of Dominican Republic's land area (8,900 km2) is dedicated to agriculture, 17% of which is irrigated. According to FAO, 270,000ha are equipped for irrigation. Most of the irrigated areas are located in the valleys between the mountain ranges, with a medium to low rainfall and few limitations on its soil such as slope, depth of soil, and in some cases, salinity problems associated with irrigation or the presence of saline groundwater. Annual government investment in water resources and irrigation infrastructure is in the order of US$100 million.
Needs in the irrigation sector are related to improving efficiency, productivity and organizational aspects. According to the FAO, solutions should be sought in the use of better technology, efficient operation of irrigation systems and adequate means of financial support. Poor maintenance of existing infrastructure and irrational use of water are causes for the low (overall) irrigation efficiency.