Qingdao, Shandong Province has rescued 240000 tons of Enteromorpha prolifera

Recently, the coastal waters of Qingdao, Shandong Province have been attacked by Enteromorpha prolifera again, which is also the 15th consecutive year of Enteromorpha disaster affecting Qingdao. According to the North Sea forecast center of the Ministry of natural resources, at present, the scale of Enteromorpha prolifera disaster in the Yellow Sea has reached the highest in history. Qingdao has launched the project of "emergency disposal of fishing Enteromorpha prolifera in coastal waters" to ensure that Enteromorpha prolifera will not go ashore or less, so as to minimize the impact of disasters.

According to the Beihai prediction center of the Ministry of natural resources, on May 17, the satellite first found large-scale floating Enteromorpha prolifera in the sea area near the shoal of Northern Jiangsu. Then, the Enteromorpha moved northward, and its distribution area and coverage area increased rapidly. According to the monitoring, the scale of Enteromorpha prolifera disaster in the Yellow Sea has reached the highest in history. Among them, on June 26, the distribution area of Enteromorpha prolifera in the Yellow Sea was about 60594 square kilometers, covering an area of 1746 square kilometers, which was 2.3 times of the largest year before 2013; On June 30, the total coverage area of Enteromorpha prolifera in the sea area under the jurisdiction of Qingdao reached the peak, about 551 square kilometers.

Zhang Yongju, leader of Qingdao marine and fishery administrative law enforcement detachment, said that the coverage of Enteromorpha prolifera in Qingdao waters this year is 9 times that of last year. Qingdao has issued an orange early warning of marine macroalgae disaster on June 18 and launched a secondary emergency response. At present, the Enteromorpha prolifera intensive area has reached the coastal waters of Qingdao City, which has caused great pressure to the coastal disposal due to the continuous southeast wind and reciprocating current.

At the centralized disposal site of Enteromorpha prolifera in badaxia square in Qingdao, the reporter saw that trucks full of Enteromorpha prolifera were driving here one after another. After unloading the Enteromorpha prolifera, they were stacked on the open space of the square, waiting for the next centralized disposal and utilization. At present, Qingdao uses satellite remote sensing, helicopter, maritime cruise, inshore monitoring, Enteromorpha tracking device and other means to increase monitoring and forecasting and comprehensive information judgment, timely adjust the maritime interception force, optimize the layout of inshore interception network, and spare no effort to intercept Enteromorpha at sea. Zhang Yongju said that Qingdao has set up three lines of defense at sea to minimize the landing rate of Enteromorpha prolifera and ensure that Enteromorpha prolifera will not land or rot“ I'm afraid of the weather of strong wind, waves and fog. Once the bad weather comes, the fishing boats can't move, and the Enteromorpha has the risk of getting close to the shore. This is what we are most worried about. "

It is understood that satellite monitoring and ship tracking monitoring over the years show that the large-scale laver culture raft in the shoal of the Southern Yellow Sea is a "hotbed" for Enteromorpha prolifera to multiply and finally float into the sea. How to turn waste into treasure? At present, a standardized scientific process has been formed for the disposal of Enteromorpha prolifera in Qingdao. After dehydration and compression, the salvaged Enteromorpha prolifera can be processed in a factory, and a variety of seaweed organic fertilizer can be made from Enteromorpha prolifera. Hu fenan, manufacturing director of Qingdao Haida biological group, told reporters that at present, they have developed more than 500 kinds of seaweed organic fertilizer, which are mainly used in domestic and some international customers' cash crops, fruits, vegetables, as well as some flowers and garden applications“ Last year, as the market development of seaweed organic fertilizer, our company sold about 200000 tons of products in total. This year, we will increase the research and development of products and the disposal and application of Enteromorpha prolifera, so as to better serve domestic and international users. "

As of July 3, Qingdao has dispatched more than 7300 ships to salvage about 240000 tons of Enteromorpha prolifera. According to the monitoring of Beihai forecasting center of the Ministry of natural resources, the impact of Enteromorpha green tide disaster on Qingdao this year will last until the middle of August.