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Green tide of Enteromorpha prolifera broke out in the Yellow Sea for 8 consecutive years

Enteromorpha green tide broke out in the Yellow Sea for eight consecutive years

the pattern of “environmental protection departments do not go to sea, marine departments do not go ashore” needs to be solved

large scale Enteromorpha green tide is pouring northward from the middle of the Yellow Sea to the coastal area of Shandong Province, which will be the eighth consecutive year of large-scale Enteromorpha green tide breaking out in the Yellow Sea. People seem to have been used to smelling the pungent smell of Enteromorpha prolifera at the seaside in summer. They are used to being pulled to the suburbs for landfilling, and even are glad that some Enteromorpha prolifera are made into feed and fertilizer” But people should not forget that Enteromorpha prolifera is the evil result of human pollution of the sea. Like the red tide, it is the warning issued by the sea to human unscrupulous pollution behavior

the reporter learned that more than 80% of marine pollution sources come from land, but the division of functions between China’s environmental protection department and marine department leads to the dilemma of “the environmental protection bureau does not go into the sea, and the marine bureau does not go ashore”, resulting in the passivity of marine pollution control and marine ecological environment protection. Experts call on us to break this management pattern as soon as possible and form a unified and coordinated law enforcement system for marine pollutant control and marine ecological environment protection

frequent green tide and red tide: warning to human beings

recently, the North Sea forecast center of the State Oceanic Administration has detected a large area of green tide of Enteromorpha prolifera in the Bohai Sea and the northern Yellow Sea. The monitoring data on June 9 showed that the green tide of Enteromorpha prolifera in the Yellow Sea and Bohai Sea covered an area of about 310 square kilometers, with a distribution area of about 21161 square kilometers. 1t was about 20 kilometers away from Rizhao, Shandong Province, and about 5 kilometers away from Qingdao, Shandong Province, and continued to drift northward

the green tide of Enteromorpha prolifera will flow to some coastal areas of Shandong province again this year, and the green flocculent Enteromorpha prolifera will pile up on the beach, giving off a strong smell of seaweed, and workers have to pull them to the landfill for treatment. Since 2007, this is the eighth time that the green tide of Enteromorpha prolifera has affected some coastal areas of Shandong Province, impacted the coastal tourism and threatened the aquaculture industry< Hu Shaojun, a researcher at the 1nstitute of Oceanography, Chinese Academy of Sciences, said that the continuous outbreak of floating green tide of Enteromorpha prolifera in the Yellow Sea has sounded the alarm of the deterioration of the coastal ecological environment in the Yellow Sea, indicating that the coastal human economic activities have made the ecological environment in the yellow sea fragile, and the dramatic increase of Enteromorpha prolifera reflects the conditions for the occurrence of large numbers of Enteromorpha prolifera in the coastal waters of the Yellow Sea, Because Enteromorpha is a typical manifestation of seawater eutrophication the reporter learned that at present, scientific researchers are still studying the formation mechanism and outbreak reasons of Enteromorpha prolifera, and have not yet formed a unified conclusion, but the basic consensus is that a large amount of ammonia nitrogen in seawater is an essential element for the formation of Enteromorpha prolifera. Therefore, Enteromorpha prolifera is the evil result of a large number of pollutants discharged into the sea in the coastal economic activities. The sea absorbs excessive ammonia nitrogen in the sea through the outbreak of Enteromorpha prolifera green tide, and recovers the water quality by itself, which also gives a warning to human beings compared with macroalgae Enteromorpha, red tide is a kind of microalgae, but the causes are closely related to human excessive economic activities. According to statistics, 13 red tides were found in the Bohai Sea alone in 2013, covering an area of about 1880 square kilometers. Li Qinliang, a researcher at the North Sea monitoring center of the State Oceanic Administration, said that there are two reasons for the formation of red tide: one is caused by seawater eutrophication, mainly due to excessive discharge of nitrogen, phosphorus and sewage from land; Second, the number of animals that used to live on Unicellular Algae decreased significantly due to human overfishing, and this kind of unicellular algae broke out on a large scale< 1n recent years, oil spill is one of the main sources of marine environmental pollution. 1n addition to the oil spill and industrial pollutants from land, major oil spill accidents will cause serious damage to the marine ecological environment, such as the collision and sinking of large ships Production accidents occurred on drilling platforms and coastal refineries on July 16, 2010, an explosion occurred in the Dalian Xingang oil pipeline. The polluted sea area is about 430 square kilometers, of which the heavily polluted sea area is about 12 square kilometers and the generally polluted sea area is about 52 square kilometers at the beginning of June 2011, oil spills occurred successively on platforms B and C of Penglai 19-3 oilfield in Bohai Sea. The sea water polluted by the accidents is at least 5500 square kilometers, mainly concentrated in the surrounding and northwest waters of Penglai 19-3 oilfield, of which the area of inferior four types of sea water is about 870 square kilometers on November 22, 2013, Sinopec Donghuang oil pipeline exploded, resulting in crude oil entering the sea. The monitoring results show that the oil film is mainly distributed in the inner part of Jiaozhou Bay from Tuandao to Huangdao, and the oil concentration in some sea areas exceeds the second class seawater quality standard. There is oil pollution on the beach on the West Bank of Dashitou in Huangdao these are three serious oil spills in the Yellow Sea and Bohai Sea in the past three years. Some experts believe that the “7.16” Dalian oil pollution incident and the oil spill accident in Penglai 19-3 oilfield will increase the average oil concentration in the sea area. Generally, under the effect of seawater dilution and self purification capacity, the water quality should be restored to a faster degree. However, the two oil spills occurred in the Bohai Sea, which is a semi closed sea with low degree of seawater exchange, so the recovery time is long marine environmental experts are more pessimistic about the impact of major oil spill accidents on the marine ecological environment. They believe that the oil spill accident will cause medium and long-term impact on the Bohai Sea ecosystem, especially the difficulty of oil pollution dilution and self purification, which will cause harm to benthos and further affect the entire marine biological chain< 1n 2013, China's marine environment was generally in a good condition, but the pressure of land-based sewage discharge was still huge, and the pollution in some coastal areas was serious, with a sea area of 144000 square kilometers that did not reach the first class seawater quality, The sea area is about 65000 square kilometers. Serious pollution areas are mainly distributed in the northern Yellow Sea, Liaodong Bay, Bohai Bay, Laizhou Bay, Yancheng, Yangtze River Estuary, Hangzhou Bay, Pearl River Estuary and other coastal waters. The main pollution factors are inorganic nitrogen, active phosphate and petroleum< 1n an interview with the economic information daily, sun Peiyan, a researcher at the North Sea monitoring center of the State Oceanic Administration, said that more than 80% of the marine environmental pollution sources come from land, including river pollution, coastal aquaculture and industrial pollutant emissions. Therefore, the total amount of land-based pollutants discharged into the sea must be strictly controlled and supervised to ensure that the land-based sewage outlets discharge up to the standard however, some grass-roots marine and fishery departments told reporters that the control and supervision of land-based pollutants discharged into the sea is facing the dilemma of “environmental protection departments do not go to the sea, marine departments do not go ashore”. The marine administrative department can only supervise the “sewage outlets” and “marine dumping sites”, but it is difficult to supervise the rivers from the upstream. The local environmental protection departments can only supervise the local rivers, but they can’t do anything about the cross-border rivers, and the supervision of the river sections into the sea is not clearly defined with the marine departments experts believe that the management pattern of “environmental protection departments do not go to sea, marine departments do not go ashore” and the obstacles of administrative division need to be solved urgently, so as to form a unified and coordinated law enforcement system for marine pollutant control and marine ecological environment protection management for oil spill accidents, it is also necessary to break the pattern of ship oil spill being managed by maritime department and drilling platform oil spill being managed by marine department. At the same time, we should strengthen the prevention and control of oil spill risk, enhance the awareness of maritime traffic safety, improve the professional quality of employees, and strengthen the supervision on the safety production of coastal refining and chemical enterprises and drilling platforms in addition, marine law experts pointed out that the marine environmental protection law has not been revised since it was revised in 1999, and there is a lack of supporting provisions and legal basis on how to claim compensation from the victims and how to repair the marine ecological damage after causing the pollution damage to the marine environment our website solemnly declares that this article is reprinted by network media, only representing the author’s point of view, and has nothing to do with our website. 1f the information column articles and comments violate your legal rights, please call to let us know and we will deal with them in time

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