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Deputy Minister of Natural Resources and Environment, Le Cong Thanh, said that activities such as paving roads, leveling houses, building hydroelectric plants … could be the cause of triggering natural disasters.
At the government’s regular press conference held on the afternoon of October 30, Mr. Le Cong Thanh, Deputy Minister of Natural Resources and Environment, expressed the above point of view.
According to him, the recent natural disaster in the Central region was fiercer than the historical record of 1999, with 4 consecutive storms from 6 to 9. Storm No. 9 was the strongest in the last 20 years, accompanied by heavy rains and prolonged. The point where the rainfall was higher than in 1999. With the fierce efforts of the Government and the localities, the damage was only a small part compared to 1999. At which, the provinces operated the process between reservoirs. floods must be reduced, making floodplains and floods significantly less.
Geological experts assess that the main cause of landslides in mountains, hills and lands in the central region during the past is due to the high mountainous terrain, strongly dissected. Geology has many types of ancient rocks and soils that decompose. cracking, creating a thick eroded crust, many layers of clay, is a disadvantageous condition, so that when it rains for a long time, the water contained in this layer of erosion is slow, causing a downward drag force ” Thanh said.
“We talk a lot about whether deforestation is the cause of floods, landslides or not. This needs to assess each specific case,” Mr. Thanh analyzed.
Mr. Le Cong Thanh, Deputy Minister of Natural Resources and Environment. Image: Write compliance
With the landslide incident at Rao Trang 3 hydroelectric power station (Thua Thien Hue), Mr. Thanh said this project is under construction, cutting the mountainside, an incident occurred.
Regarding the environmental impact assessment of small hydroelectric plants, the Ministry of Natural Resources and Environment said that when building a project, experts always calculate the impact on forests, vegetation cover, biodiversity and runoff. minimum that hydroelectric power must be returned to downstream … “The Forestry Law strictly regulates the conversion of forest land for all types of projects, not just hydroelectric. In recent years, more than 470 Planning has been of small hydroelectric power plants; more than 210 potential points for the construction of hydroelectric power are also carefully and thoughtfully considered to ensure sustainable development, especially in mountainous areas, avoiding natural disasters as the past time. “stated Mr. Thanh .
Vice Minister of Agriculture and Rural Development Nguyen Hoang Hiep, He said that the natural disaster that occurred in the Central region was “very unusual and unusual.” Never in 20 days, the Central region suffered 4 storms, floods, floods and storms.
“We know it and we warn very early. Right at the beginning of 2020, in the national conference on disaster prevention, together with the Ministry of Natural Resources and Environment we warned that this year there will be around 5-6”. the storm in the central region, including a very large storm, we also warned 15 days before the historic flood in Quang Binh, Quang Tri, Thua Thien Hue, “said Mr. Hiep.
Explaining why there were early warnings but there were still people who couldn’t run because of the floods, still on the roof of the house, Hiep said “there are many reasons.” According to him, thanks to the early warning, people basically knew the news. More than 56.1 million messages sent to the people of Central Vietnam, much less to the political system, came into play very early. However, there are places that are heavily flooded, to the point where people living in two-story houses still have no shelter.
“To be objective, we will check if there is information congestion or not? If there is at some point?”, Said the deputy minister.
Mr. Nguyen Hoang Hiep, Vice Minister of Agriculture and Rural Development. Image: Nguyen sea
In response, Mr. Hiep emphasized that the forces were very proactive; the police and the army have many people dead, injured, many days without sleep. However, the leader of the Ministry of Agriculture and Rural Development said that, to respond to extreme natural disasters so recently, Vietnam needs highly professional forces and more synchronized teams. In particular, this force must have adequate equipment for all terrains and climates. This will ensure a speedy rescue and at the same time ensure the safety of the rescue force.
Furthermore, the resilience of the infrastructure is limited. The sea dike in the design can only withstand waves from level 10, to 11 (up to level 12, shock level 15 requires double financing), the anchor for boats only ensures 46%; Some fishermen did not comply with the warning … at 12 o’clock on October 26, when the storm landed in the East Sea, the authorities were still in contact with two boats asking to run against the direction of the storm to escape. But after that, they turned off the phone and cannot be reached until now.
“At present, we lose lives mainly due to landslides. Landslides are very complicated and irregular. Recent major landslides, including at ranger station 67, the delegation. According to the latest survey in South Tra My, these are long-term stable places, not on the alert map, “Hiep said, emphasizing that more science and technology need to be applied to the alert.
Currently, more than 10 provinces with a high risk of natural disasters have erosion maps, however, the rate is 1 / 50,000, while in practice it is necessary to have at least 1 / 10,000 or 1 / 5,000; To build specific sites, 1/500 is needed. With a 1 / 50,000 map, it is impossible to move immediately to many communes.
“On the issue of whether people have impacts on natural disasters or not? I affirm that. All human activities have good or bad impacts on all problems, including natural disasters,” Mr. Hiep Said and said, the point of view of the Ministry of Agriculture and Rural Development is to be “favorable”, adaptable, that is, to have a structural solution to “favor”.
Mr. Le Quang Hung, Vice Minister of Construction, said that the central region has had three types of natural disasters, namely wind and storm; flood; tubular flooding, landslide flash flooding.
Storm winds usually come from the sea 30 km inland. If the house ensures “hard three” is hard floors, hard walls, hard roof can withstand.
Seven years ago, the government issued Decision No. 48 to help people build houses to overcome the floods in central Vietnam and built more than 30,000 houses with stories above the historic floods. “These houses have been very effective, with about 10-15 m2 on top of the historic flood, the family can retreat there, with a duration of about 10-15 days. The Ministry of Construction and other units will study. help replicate this model, “Hung said.
However, with floods, flash floods, landslides, Mr. Hung claimed that no structural solution can withstand it. Therefore, the solution for prevention is to choose places that avoid this type of natural disaster. Maps of floods, flash floods, and landslides already exist, but the scale is high and the scale should be 1/500.
With the work already built, the authorities will guide the selection of the relocation site and geological instructions, the amount of rain can cause flash floods, landslides … within a radius of 500 m so that people take precautions.
