Ministry of the Environment is pleased to announce opening ceremony, residents are anxious about anxiety – Chosun.com

The Ministry of Environment announced on March 29: "I was able to observe the restoration of the natural state of the river during the period of opening," said the ministry . We have minimized the damage done to local farmers. "However, locals close to Ippo still worry about the future reopening.

The Ministry of Environment announced the results of the monitoring of the opening of the Ipo-Bae that day and observation of 14 areas including the quality of the Ipo-Bae. water, landscapes and ecosystems, Ipoh, whose initial water level was 28 m, delivered 1.6 m / h from 4 October and reached the target level of EL.26.4 m on October 15th. After 20 days, he continued to raise his water level on July 7th and closed the boat on March 13th.

As a result of the monitoring carried out by the Ministry of the Environment, after the opening of Ippobo, new sandbags of a size of about 12 times (0.086㎢ ) of the football field surface appeared, as well as a layer of gravel and a layer of sedimentary perl. The Ministry of the Environment said: "The number of waterbird populations at open times has increased 15-fold compared to the pre-harvest period. Ecological spaces such as sandbags have increased and wetlands, puddles and shallow sections have been formed.The government has committed a short-term alba to reduce the number of molluscs and outdoor crustaceans, creating a total of 103,370 shellfish in a rescue and deepwater zone.

However, fishermen working in the Ipo Bo watershed state that "the damage continues not only during the opening but also after the recovery of the water level". Lee Yoo-soo, a fishing village chief, said: "Although the boat is refloated after the water level is restored, all the fish are leached when it is opened.

Farmers directly affected by the water level of Ipoh Bo also expressed concern. The Ministry of the Environment said: "In the case of water use, groundwater fluctuations fluctuated less than the level of open water, and it is n & # 39; There was no problem with one water outlet and four pumping stations. " The groundwater level decreased by 0.55 m due to the opening of the Ipo volcano. Kim Jung-man, the head of Yeoju City, said: "This time, I was worried because I lowered the water level by 1.6m for a month but it is expected that the water level will drop next year. "There are many places where water is grown and groundwater is used for water supply, and it is a method of cultivation that keeps the indoor temperature of the vinyl house at one level. elevated by sprinkling a shallow stem of groundwater outside the vinyl house in winter and should be influenced by the opening of the Ipo Boo.

Local residents asked the question, "Why do I have to open water when there is no big problem with water quality?" In fact, the water retention time of Ipo Bobo during this opening period was 50 days lower than the previous 0.8 days, or 0.4 days. The flow rate increased from 8.5 cm / s to 19 cm / s before opening. (Chlorophyll-a), Biochemical Oxygen Demand (BOD), Total Phosphorus (PT), etc. In response, the Ministry of Environment said: "This is an overall improvement over before opening." "It is necessary to monitor the results of the beam opening to determine the treatment plan of the four main rivers."