Will the sand in the Red River be depleted in 100 years?

Ninety percent of sediment is trapped in Chinese and Vietnamese reservoirs, which will lead to erosion, according to Mai Van Bieu, an underground-work expert.

Speaking at a recent seminar on the safety of terraced hydropower systems on the Da River, he said: "Ninety percent of alluvium has been retained by hydropower reservoirs. We cannot expect anything from the remaining 10 percent, because they are just suspended particles." 

Will the sand in the Red River be depleted in 100 years?


“This will lead to serious erosion in the Red River lower course. In the Mekong River Delta, the phenomenon is also occurring."

According to Pham Dinh Hoa from the Vietnam Academy for Water Resources, the deep erosion began occurring in early 2000. As of 2012, the area of the cross section of the main stream had increased by 40 percent compared with 2000.

This has lowered the river water level. Since 2000, the river bottom has dropped by 8 cm every year.

The main riverbed has eroded by 2 meters, causing the water level to fall. The water volume flowing to the Duong River has also changed, because the Duong River bed has become lower than the Red River, which is attributed to sand overexploitation.

Within 15 years, from 1997 to 2012, nearly 244 cubic meters of sand were lost from the Red River bed. The amount of sand taken away in Hanoi alone was three times more than the amount of alluvium reaching Son Tay at times.

Within 15 years, from 1997 to 2012, nearly 244 cubic meters of sand were lost from the Red River bed. The amount of sand taken away in Hanoi alone was three times more than the amount of alluvium reaching Son Tay at times.

The bottom of the river has dropped and landslides have begun occurring on the river banks.

 


Scientists warned that if no measure to protect the Red River is applied, the consequences will be serious.

Alternative material

Natural sand remains an irreplaceable material used in construction. According to the Ministry of Construction, the amount of sand to be exploited can satisfy only 60-65 percent of the demand in large cities.

Vietnam has been developing many infrastructure projects, so the demand for sand has been increasing rapidly. With the current development pace, experts believe that sand supply will be exhausted in 15 years.

According to Tran Ba Viet, a senior expert at the Institute of Construction Technology, artificial sand from ground stone is increasingly popular.

This type of sand is mostly used in concrete production and cannot replace fine sand and medium-grain sand in other construction stages.

The price of sand from ground stone is high, VND350,000-400,000 per cubic meter.

Linh Ha 

Landslides in Mekong Delta attributed to sand exploitation

Landslides in Mekong Delta attributed to sand exploitation

The World Wildlife Fund (WWF) and Mekong River Commission (MRC) say the river bed of Mekong’s two main tributaries in Mekong Delta fell by 1.4 meters in 1998-2008 due to sand overexploitation.

Unexploded bomb from American War pulled from Hanoi's Red River

Unexploded bomb from American War pulled from Hanoi's Red River

Hanoi military personnel salvaged and safely disposed of a US-made unexploded 1.6m-long bomb from the Red River on Monday.  

 
 

Other News

.
Smart City Asia 2020 slated for September 3-5
Smart City Asia 2020 slated for September 3-5
SCI-TECH & ENVIRONMENTicon  15/07/2020 

The 2020 edition of the international forum and exhibition Smart City Asia will take place in HCM City from September 3 to 5, heard a press conference held by the Vietnam Digital Communications Association (VDCA) in Hanoi on July 14.

UNESCO launches programme seeking innovative ideas for ocean without plastic in Vietnam
UNESCO launches programme seeking innovative ideas for ocean without plastic in Vietnam
SCI-TECH & ENVIRONMENTicon  14/07/2020 

The United Nations Educational, Scientific and Cultural Organisation (UNESCO) in cooperation with the Cu Lao Cham - Hoi An World Biosphere Reserve officially launched in Hanoi on July 14 a call for Youth Innovative Ideas for an Ocean without Plastic.

‘Queen of primates’ through the lens
‘Queen of primates’ through the lens
SCI-TECH & ENVIRONMENTicon  14/07/2020 

The red-shanked douc langurs, recognized as ‘queen’ of the primate species, have always been the inexhaustible inspiration of photography and wildlife lovers.

HCM City's many flood-prevention programs still not solving problems
HCM City's many flood-prevention programs still not solving problems
SCI-TECH & ENVIRONMENTicon  14/07/2020 

Tens of trillions of dong have been spent to develop the flood control system on HCM City, but the situation appears to be getting worse.

Ministry to conduct a large-scale inspection on junk SIM cards
Ministry to conduct a large-scale inspection on junk SIM cards
SCI-TECH & ENVIRONMENTicon  13/07/2020 

The Ministry of Information and Communications (MIC) has said it plans to deal with telecom waste and continue large-scale inspections of junk SIM cards.

Vietnam to commercialise 5G in October
Vietnam to commercialise 5G in October
SCI-TECH & ENVIRONMENTicon  13/07/2020 

Vietnam will commercialise 5G network in October using entirely domestically produced equipment, according to the Ministry of Information and Communications (MIC).

HCM City takes steps to reduce vehicle emissions
HCM City takes steps to reduce vehicle emissions
SCI-TECH & ENVIRONMENTicon  13/07/2020 

Ho Chi Minh City is carrying out multiple methods and programmes to reduce air pollution and CO2 emissions in its aim to create a "clean, green and beautiful" city.

Keeping Phu Quoc Island clean and safe
Keeping Phu Quoc Island clean and safe
SCI-TECH & ENVIRONMENTicon  13/07/2020 

Phu Quoc Island has a deserved reputation for its pristine beaches and stunning landscapes, but pollution is starting to have a negative impact on its sustainable development.

Vietnamese scientists make potential cancer breakthrough
Vietnamese scientists make potential cancer breakthrough
SCI-TECH & ENVIRONMENTicon  15/07/2020 

Scientists of the Vietnam Academy of Science and Technology (VAST) have succeeded in synthesising platinum complexes which have cytotoxicity on cancer cells and have the potential for treating cancer.

Six-man squad protects animals in Son Tra Peninsula
Six-man squad protects animals in Son Tra Peninsula
SCI-TECH & ENVIRONMENTicon  13/07/2020 

Son Tra Nature Reserve is known as the “green lung” of Da Nang City with a diverse eco-system and thousands of flora and fauna species.

Binh Duong fines 87 units for environment violations in first half
Binh Duong fines 87 units for environment violations in first half
SCI-TECH & ENVIRONMENTicon  11/07/2020 

Eighty-seven facilities were fined for environmental violations in southern Bình Dương Province in the first half of 2020, according to local Department of Natural Resources and Environment.

HCM City aims to reduce water pollution by 90 percent
HCM City aims to reduce water pollution by 90 percent
SCI-TECH & ENVIRONMENTicon  11/07/2020 

HCM City authorities have ordered the city Department of Natural Resources and Environment to work with agencies and district authorities to strictly monitor the discarding of litter and untreated sewage in canals in the city.

Forest fires a burning problem during dry season in Vietnam
Forest fires a burning problem during dry season in Vietnam
SCI-TECH & ENVIRONMENTicon  10/07/2020 

As many as 160 forest fires were reported across Vietnam in the last six months, destroying about 756ha of forest, according to the Vietnam Fire and Rescue Police Department under the Public Security Ministry.

A high-school student successfully extracts calcium from tuna bones
A high-school student successfully extracts calcium from tuna bones
SCI-TECH & ENVIRONMENTicon  10/07/2020 

A high-school student has discovered a simple way of extracting calcium from tuna bones.

Contest launched to seek digital transformation solutions
Contest launched to seek digital transformation solutions
SCI-TECH & ENVIRONMENTicon  09/07/2020 

Viet Solutions 2020, a contest seeking solutions for digital transformation process in Vietnam for individuals and businesses over the world, was launched by the Ministry of Information and Communication and Viettel Group.

VNPT-invested undersea cable connected to Vietnam
VNPT-invested undersea cable connected to Vietnam
SCI-TECH & ENVIRONMENTicon  09/07/2020 

The Southeast Asia – Japan 2 Cable System (SJC2), invested by a consortium including the Vietnam Posts and Telecommunications Group (VNPT), has been connected to Vietnam.

Drought in Mekong Delta worsens due to hydropower, water diversion
Drought in Mekong Delta worsens due to hydropower, water diversion
SCI-TECH & ENVIRONMENTicon  09/07/2020 

Since countries in the upper course of the Mekong River have diverted water, problems related to drought, saline intrusion and landslides in Mekong Delta have become worse.

The journey of a Vietnamese student to an internship at NASA
The journey of a Vietnamese student to an internship at NASA
SCI-TECH & ENVIRONMENTicon  10/07/2020 

After receiving a full scholarship worth VND6 billion to study at a university in the US, Nguyen Hoang Ngan won an internship at NASA (the National Aeronautics and Space Administration) thanks to his creative science projects.

VN develops new rice variety for flood and drought-prone areas
VN develops new rice variety for flood and drought-prone areas
SCI-TECH & ENVIRONMENTicon  09/07/2020 

New rice seed variety which is capable of adapting to climate change has been planted in flood and drought-prone regions in north and south central provinces.

HCM City develops wide-ranging AI strategy
HCM City develops wide-ranging AI strategy
SCI-TECH & ENVIRONMENTicon  09/07/2020 

HCM City is drawing up a wide-ranging plan to promote artificial intelligence (AI) development and research in the near future, Duong Anh Duc, deputy chairman of the HCM City People’s Committee, has said.

 
 
 
Leave your comment on an article

OR QUICK LOGIN