At the end of March, outside the sea area of northern Jiangsu. Look at 'Mao's line, Chinese, and net

Yao Jianyi, an oceanographer from the Suzhou Provincial Oceanic Bureau, came in the dust.

Yao Jianyi has been engaged in the research of marine biological ecology for many years. Last year, the green tide phenomenon formed by macrochlorophytes was observed for the first time in the local waters of the South Yellow Sea in China, but the scale is not large, the affected area is small, and the total amount of green algae treated in coastal areas is only 6,000 tons. However, he did not dare to slack off, and since then he has done a lot of experiments to study the moss.

In his research, the continuous increase in offshore nutrients caused by a large number of land-based inputs from the northern coastal areas of Jiangsu Province provides a nutrient basis for the large-scale outbreak of green tides. At the same time, in the context of global warming, the complex and diverse reproduction methods, strong photosynthetic carbon sequestration efficiency and nutrient absorption capacity of Liverwort show strong competition for survival under the specific temperature and light conditions of the Yellow Sea, and the risk of large-scale green tide outbreak is extremely high.

Therefore, after he heard that Jiagu was carrying out a moss breeding project, he rushed to it non-stop.

After several rounds, I finally took a boat to the sea area where the "Sea Ranch" of Jiagu is located.

This is already a relatively remote part of the sea. Tens of thousands of acres of sea area, looking from afar, rows of farmed plastic floats float with the waves, under the clear ocean, the grass-green moss dances, like a sea "grassland".

Yao Jianyi came at the right time, this spring the sun is more sufficient, the temperature is suitable, the growth of the moss is gratifying, is ushering in a bumper harvest.

At sea, fishermen hired by Jiagu use large motorized boats to retrieve mature moss from the sea farming area. On the vast sea, the breeding area is longitudinal and horizontal, and the powerful tugboat tows more than a dozen small boats full of moss, plowing several waves in the sea, attracting gulls to chase and circle......

Qi Zheng and Chen Jianzhang were both at the scene to inspect the harvesting of moss.

There were other personnel from the Oceanic Bureau monitoring the environment at the scene, and after being introduced, Yao Jianyi quickly talked to Qi Zheng and Chen Jianzhang.

"In fact, the market demand for seaweed food has grown strongly in recent years, but there are almost no high-quality products used in seaweed feed, seaweed fertilizer and seaweed polysaccharide processing. As a non-cultivated source of seaweed, it has good raw material substitution and supplementation. Our Jiagu moss breeding project is also the first of its kind. Chen Jianzhang introduced.

Of course, Yao Jianyi knew the name of Jiagu, and even Chen Jianzhang was not an unknown person, but he had some worries in his heart, and retorted angrily: "Economic development belongs to economic development, but have you ever thought that the cultivated moss may become the source of the green tide outbreak because of this?"

He was even a little angry.

Although up to now, there are still some scientific questions to be solved about the early origin of the green tide. For example, the source of P. definiteum in winter and spring is still unclear, and the provenance and biological survival mechanism are still unclear...... But he also has some research, such as the source of the Yellow Sea floating moss is probably the seaweed farming raft in the northern shoals of Jiangsu.

Although the scale of last year's moss green tide was not large, it was already a warning sign. Referring to the large-scale outbreak of "red tide" in recent years, once it erupts, the distribution area may reach tens of thousands of square kilometers, and it is almost impossible to carry out full-line salvage in such a vast sea area. Therefore, the prevention and control of the source of the green tide is the only way.

He also thought about suggesting that the government make a requirement to clean up the larvae from the seaweed breeding rafts after the laver harvest season in northern Jiangsu...... Now, there are people who directly breed moss on a large scale, isn't this adding fuel to the fire?

Qi Zheng and Chen Jianzhang looked at each other and smiled when they heard this.

Chen Jianzhang explained with a smile: "The moss we breed is actually a mutated variety. Its autologous reproduction is controllable. ”

"Huh?" Yao Jianyi's eyes widened in surprise.

One day, a technician in the laboratory had a whimsical idea to use the rapid production characteristics of seaweed to cultivate biological anti-cancer products such as paclitaxel, but after some mutagenesis, the anti-cancer products naturally did not make any progress, but screened out a batch of mutated varieties of moss.

The mutated moss must be stimulated and induced by yew extract to reproduce autologously, which is not controllable?

"We have done sufficient experiments to show that mutant moss grows in an ordinary marine environment, and after the growth period, it cannot reproduce at all without the induction of yew extract, so there is no need to worry about the ecological disaster caused by mutant moss......," Chen Jianzhang patiently explained.

Qi Zheng smiled secretly in his heart, needless to say, this must be the pot of the "Nine Turns Nirvana Array" in the laboratory! But this characteristic is so good, it can be said that it has greatly promoted the commercial process of mutant moss.

You must know that in order to get the approval of the mutant moss breeding project, the Jiagu laboratory provided the most complete experimental proof, and it was also approved because of Jiagu's reputation and the banner of "improving the marine environment". Even so, the Suzhou Provincial Oceanic Bureau has maintained close monitoring at all times.

Yao Jianyi was also in a hurry, so he didn't pay attention to the information provided by Jiagu, and he couldn't help but be surprised when he heard the explanation.

In this way, Jiagu is really not hot-headed. Yao Jianyi was also simply, and after realizing that he had misunderstood, he immediately apologized to Qi Zheng and the others.

Qi Zheng waved his hand: "I heard that Professor Yao also has in-depth research on moss, why not visit our moss breeding in order to provide some advice?"

Of course, Yao Jianyi couldn't ask for it, so he responded in one bite.

"I also know that although moss destroys the marine ecosystem after 'gathering sand into a tower', there is also a positive side. It is rich in carbohydrates, proteins, crude fiber, amino acids, fatty acids, vitamins and a variety of minerals, among which the iron content is recorded as the highest in China's food nutrition list...... What kind of products does Jiagu produce with moss?"

Qi Zheng said: "It is mainly used to produce seaweed organic fertilizer. ”

Yao Jianyi frowned slightly, and he said bluntly: "I have conducted cost-benefit calculations for the harmless disposal and resource utilization of moss. Without considering the seasonality of the supply of moss resources and the periodicity of processing and utilization, according to the existing production technology and technical facilities, if only seaweed organic fertilizer is produced, it is very affordable to pay the cost of salvage, transportation, processing, production and other disposal links, right?"

Qi Zheng smiled slightly and motioned for him to visit first.

After the mature moss is harvested on the farm, the next batch of cultivation is carried out.

Jiagu has established a special seaweed nursery on the coast of northern Jiangsu, and the seedlings are removed for cultivation after induced propagation in the nursery. The cultivation of moss is a relatively advanced shallow sea floating raft cultivation method, the main thing is to use a floating silk tied to the seaweed seedling curtain suspended in the seawater for cultivation - the moss must have attachments in order to grow better.

This cultivation method makes the seaweed grow in suspended water, and the water layer can be adjusted arbitrarily, so that the light intensity is more suitable for the photosynthesis of the moss, and the yield per unit area is greatly improved.

On the first day, the farming area was still sparse green.

The next day, the greenery deepened significantly.

On the third day, the blue water had turned into a green "grassland".

Day 4......

Yao Jianyi watched in amazement as the mutant moss grew rapidly at a daily growth rate of 20, and the intense photosynthesis produced bubbles in the algal filaments, thus floating the entire sea area within the isolation net. In less than a week, the biomass accumulated by the mutant moss increased by a factor of hundreds.

"This ...... This ......" Yao Jianyi pointed to the green carpet in front of him in disbelief, and didn't know what to say.

Chen Jianzhang shrugged: "Mutant varieties, sea water eutrophication, the temperature is okay, and it is so unreasonable to grow wildly." ”

“......”

After a long time, Yao Jianyi breathed a long sigh of relief: "Fortunately, the reproduction of mutant varieties is controllable, otherwise, it would be a disaster to break out!"

Chen Jianzhang said with a smile: "Now it is for the benefit of the country and the people." ”

Yao Jianyi nodded vigorously.

Not to mention anything else, look at the cost of breeding, in addition to labor and transportation costs, Jiagu does not need to invest more means of production. Isn't he still clear about the sea areas in northern Jiangsu? The degree of eutrophication of the seawater is extremely high! The mutated moss cultivated in Jiagu grows like this, and it is harvested one after another, and the yield is simply ......

However, what he values most is the ecological function of the mutated moss - Jiagu seaweed farm deliberately chose the sea area where the tide is unimpeded, and it is easy to find through the detection that after flowing through tens of thousands of acres of "marine ranch", the oxygen content of the seawater increases, and the nutrients and salts are greatly reduced, that is, the seawater is greatly "purified".

"Benefit the country and the people!" Yao Jianyi couldn't help but emphasize again.

Isn't it just for the benefit of the country and the people? Qi Zheng thought secretly.

"Green Bamboo Hundred Array (Third Order) trigger, main wood system, range: 250 kilometers radius. Effect: Moisturizes, grows. The creature is in the array, as if it was newborn, raising purple flowers, and growing vigorously. ”

"Bibo Qinghua Array (Third Order) trigger, main wood water system, range: 250 kilometers radius. Effect: Clear water, drainage. It can make the spring water clean and drain the water. ”

The growth rate of seaweed is already fast, coupled with the moisturizing and promoting growth of the "Green Bamboo Bailing Array", even Yao Jianyi was scared when it grew wildly.

The "Blue Wave Qinghua Array" is not arranged here to clean the water source, but mainly to drain the water - Qi Zheng has attracted extremely eutrophicated seawater in the direction of the Yellow Sea, and the main nutrients that cause eutrophication in the sea area are nitrogen and phosphorus, which can just meet the growth needs of mutated moss.

According to the situation that the mutated moss can be harvested throughout the year and at least two stubbles per month, tens of thousands of acres of "marine ranches" are estimated to be able to get millions of tons of moss, and how much of the "purified" seawater is there?

Qi Zheng did not dare to guarantee that the "green wave" in the Yellow Sea would not break out this year, but he could guarantee that even if it did, the scale would certainly not be as large as the same period in history.

......