I remember telling my friends some time ago that I wanted to travel to Qingdao. The friend asked, "Do you want to see the grassland?" At that moment, I didn't quite understand what this stalk was, but later I realized that it was actually talking about the severity of the spread of Enteromorpha prolifera in Qingdao.
When it comes to the rampant development of this aquatic plant, in fact, most people think of "water eutrophication" for the first time. Perhaps more specifically, the discharge of industrial wastewater pollutes the local ocean, and with the local suitable weather, bryophytes have formed a situation similar to "biological invasion".
But is the serious development of Enteromorpha prolifera in Qingdao really due to marine pollution? For a long time, everyone thought so. However, after statistical investigation, it is found that the wastewater discharge in Qingdao has not increased significantly in recent years.
That is to say, Enteromorpha prolifera grows explosively without aggravating pollution. Then the most fundamental reason is not "water eutrophication".
In the slow investigation, we found that in fact, Enteromorpha prolifera in Qingdao mainly came from the migration and invasion of adjacent waters. Many people grow laver in northern Jiangsu. The growth of laver is not just floating on the sea, but needs an external climber.
Therefore, local farmers will insert a lot of bamboo poles when planting laver. However, this bamboo pole not only helped the growth of laver, but also became a paradise for Enteromorpha.
When these bamboo poles are salvaged ashore, local farmers will peel off Enteromorpha on the shore. After all, it is an order of magnitude, and it is heavier to carry it home directly.
However, it is these Enteromorpha that peeled off the shore that gave Qingdao a fatal blow. Because these detached Enteromorpha will not disappear immediately. On the contrary, some of them stayed on the shore and re-entered the sea at high tide, drifting all the way, which had a serious impact on the nearby waters.
Other Enteromorpha seeds, after air drying, will drift with the wind and enter the sea again, causing secondary pollution. After these Enteromorpha seeds arrived in Qingdao, they quickly spread at an accelerated speed due to insufficient local attention at the initial stage and the unique lighting and geographical environment in Qingdao.
After a long time, this thing settled in Qingdao. Although local fishermen have made a lot of efforts, but because the coverage area is too wide and the breeding speed is too fast, in many cases, it is actually a temporary solution.
So I think a lesson we should learn from this incident is that no matter where the water pollution is serious, the impact may not only be local, but also have a serious impact on the ecological environment in other places.
Therefore, it is imperative to do everything possible to control the Enteromorpha pollution in Qingdao so as not to cause harm to other areas.