GROUNDWATER RESOURCES IN VIET NAM: POTENTIAL AND CHALLENGES
Tóm tắt
Groundwater is a precious resource in Viet Nam, especially in areas with a lack of other available water resources. Intensive investigation of groundwater resources has been undertaken over the past five decades and identified 26 water-bearing units in 7 regions. Groundwater resources are represented by potential reserves, classified by hydrogeological regions. The total groundwater potential reserves in the country reach nearly 133 million m3/day, which equals 48.5 billion m3/year. Groundwater resources are exploited for many purposes such as drinking, manufacturing, irrigating, aquacultural cultivation in Red river/aquacultural cultivation plain, in Southern plain and in the Central Highlands. During groundwater extraction, some challenges have been arise such as groundwater contamination of Nitrogen, Arsenic etc., Land subsidence as a result of overuse for example in Ha Noi, Ho Chi Minh City, Ca Mau peninsular and groundwater salinization in coastal aquifers where there is about 3,260 km coastal line with developing areas and impacts of climate change and sea level rise.
