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More than 377,000 people in the Cuu Long (Mekong) Delta face a fresh water shortage because of saline water intrusion in the area, according to the National Centre for Rural Clean Water Supply and Environmental Sanitation.
The price for fresh clean water has soared as a result. In Kien Giang, Ben Tre and Ca Mau provinces, people have been buying clean water for VND25,000-60,000 (US$1.2-$2.9) a cubic metre, far higher than the normal price of VND7,000-10,000.
Vo Thi Thong, 47, from Hon Dat District's Binh Son Commune in Kien Giang said the wells of hundreds of households had been affected by saline intrusion and acidic soil.
To have water for cooking and drinking, people here have to travel about 10km to the commune's centre to buy clean water, she said.
Saline water intrusion and drought in the delta have affected agricultural production, with salt water concentration increasing to 0.9 per cent in several areas in Hau Giang Province, Nguyen Van Dong, director of the province's Department of Agriculture and Rural Development said.
In Ben Tre, Tra Vinh, Ca Mau and Bac Lieu provinces, the water is more saline than last year, officials said.
In Ca Mau Province, the salt concentration reached 3 per cent. Rice will die when the salt concentration in fields becomes higher than 3 per cent.
About 100,000 ha of farmland in the delta has been affected by saline water intrusion, according to the Ministry of Agriculture and Rural Development.
This intrusion occurred one month earlier than in the past, and entered 40-50 km deep into river mouths.
In some areas in Soc Trang, Tra Vinh, Ben Tre, Tien Giang and Long An provinces, saline water has intruded 50-60km into rivers.
Since early February, strong winds combined with drought have created favorable conditions for deeper saline water intrusions.
Steps have been taken to provide fresh water to farms.
Hau Giang and Vinh Long provinces have dredged and upgraded dozens of canals to supply irrigation water for 38,000ha of rice and fruit fields in affected areas.
Tien Giang Province has built 173 temporary dams to prevent saline water intrusion and has set up 173 sites to pump water into fields.
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