25. Research on Impacts of Increasing Water Supply Guarantee for Agriculture in Dry Season to Hydaulic Works Operation in Northern Delta in Vietnam

摘要

Over 50 years, irrigation systems for agriculture in Vietnam were designed with a water supply guarantee not more than 75%. According to Vietnam standard 285:2002: Hydraulic works - The basic stipulation for design, stipulates that hydraulic works are designed to ensure water supply guarantee for irrigation is 75% and for living is from 80% to 95%. Guarantee of water supply, especially during dry season, depending on capacity of incoming water sources, capacity of hydraulic works to be built and will be built - is a problem that there is no scientific research so far. On the other hand, in case of sufficient water sources, the impact of increasing the water supply guarantee for agriculture and irrigation operation is also a major issue that has not been considered. This research is very necessary, with a great socio-economic significance.