The Ba Lai sluice in Ben Tre Province’s Binh Dai district keeps out saltwater and provides irrigation water for 88,500ha of lands. (Photo: VNA) The delta, the country’s largest rice, fruit and seafood producer, is forecastto face a higher level of saltwater intrusion in its rivers than average thoughless severe than during the 2019-20 dry season.
It had a late flooding season this year and is likely to have higher levels ofrainfall in the next few months, according to the National Centre forHydro-Meteorology Forecasting.
The delta comprises 12 provinces and Can Tho City.
To mitigate the impact of saltwater, Can Tho City has prioritised the dredgingand upgrade of the Ngang, Dong Phap, E1, and G1 irrigation canals to increasetheir storage capacity. They add up to a total length of 29.2km.
The region is also speeding up the construction of irrigation works andupgrading deteriorated ones.
Tra Vinh province is building irrigation projects, upgrading saltwaterprevention dams and sluices, and digging new ditches in fields to store waterfor irrigation.
Pham Van Kha, deputy head of Bureau of Agriculture and Rural Development in itsCau Ke district, said construction of 31 irrigation projects is being speeded,including ditches with a total length of 25km.
It is consolidating eight embankments and other works to prevent saltwaterintrusion and provide water to irrigate nearly 3,800ha, he said.
Pham Minh Truyen, director of the province Department of Agriculture and RuralDevelopment, said saltwater would begin to enter rivers and irrigation canalsin early 2022, and the situation is expected to be severe, affecting thewinter-spring rice, vegetables and fruits.
Tra Vinh has 54,000ha under rice and 31,000ha under vegetables in the ongoingwinter-spring crop, according to its Department of Agriculture and RuralDevelopment.
Tien Giang province has built eight steel dams to prevent saltwater intrusioninto the Bao Dinh and Go Cong areas.
It has also built seven saltwater prevention dams along canals in Chauu Thanhand Cai Lay districts and drilled 16 borewells to supply water to people livingin remote areas.
Ben Tre province has built three temporary saltwater prevention dams on the BaLai River’s branches in Chau Thanh district so that water can be drawn fortreatment.
In recent years the delta has built many water supply projects but many areasstill face a shortage for household use in the dry season.
In the 2020-21 dry season it undertook 35 groundwater projects to provide waterto 330,000 people and 10 water supply works to provide to another 62,000 peopleliving in coastal areas.
In the coastal provinces of Long An, Ben Tre, Tra Vinh, Soc Trang, Bac Lieu, CaMau, and Kien Giang, saltwater is expected to intrude 50 – 60 km into rivers inplaces that lack comprehensive prevention works in the first two months of2022, according to the Southern Institute of Water Resources Research./.
VNA
