Ecological Literature 丨 President Wang's ecosystem

The autumn wind rises, the crab feet itch. With the blowout of the autumn wind, the crab farmers ushered in the happiest thing in the year -the crab harvest.

In the past few days, Wang Jian, the general manager of the Crab Breeding Base, was too busy. On the one hand, the employees are arranged to make the crabs and inspect the growth of crabs from time to time; on the other hand, the customer's scheduled more than 1 million yuan crabs, arranged that the courier company rushed to the Mid -Autumn Festival.

The "Wang Jian brand ecological crab" registered in his name has been favored by customers in recent years. Crab was still in the water, and the merchant was booked millions of yuan.

Busy, nothing; tired, nothing. The key is the joy of success. Busy, tired, and happy, this is the true portrayal of Wang's present life.

Create a "own Yangcheng Lake"

Wang Jian faced a variety of choices when graduating from a graduate student of Agricultural University. In the opinion of relatives and friends, his later decision was the next policy. Because, he chose to leave the city where he was excellent and went to the rural wind to engage in crab breeding, and he would be controlled by various non -human -energy control, such as drought floods, ups and downs, and diseases. Capital is not impossible.

But Wang Jian has his own plan. Born in Jiangnan Water Village, Wang Jian grew up in Yangcheng Lake hairy crabs. Due to the love of diners, every fall, some foreign crabs are always transported to Yangcheng Lake for a period of time, and then they are sold in the name of Yangcheng Lake hairy crabs. The price doubles immediately.

At that time, he thought that Yangcheng Lake was only 120 square kilometers. After all, the output was limited. If the natural growth conditions of Yangcheng Lake hairy crabs were made in depth, finding a place in Jiangnan area, simulating the ecological environment of Yangcheng Lake, can it be raised and or not, and it can be raised and ordered. Yangcheng Lake crab -like hairy crabs?

Creating a "own Yangcheng Lake" has become a dream in Wang Jian's heart. Now, walking out of the university campus, as if a burst of spring rain, the seeds buried in the heart began to germinate.

Wang Jian came to his hometown to set up a crab breeding base. He wants to turn his dreams for many years into reality.

The first step, Wang Jian and his friends formed a scientific research team to investigate the situation of water text, water quality, lake shore, and lake at the bottom of Yangcheng Lake. After a detailed investigation, Wang Jian finally found out the "bottom details" of Yangcheng Lake.

In the second step, Wang Jian contracted more than 300 acres of low -lyinglands in the village, excavated dozens of large ponds, and cultivated ordinary freshwater crabs while breeding three -mouth crab pond for careful testing. Each time the various fillers invested by the crab pond, Wang Jian carefully recorded, carefully observed the changes in water quality and water environment, repeatedly adjusted the various ratio of the mix, and sent the test breeding crabs to the authoritative aquatic scientific research institution for testing. At the same time, the gourmet also invited the Yangcheng Lake hairy crabs for comparison and tasting.

In order to create a natural ecological environment for the growth of crabs, Wang Jian bought waterweed "planting" in a pond to allow it to absorb carbon dioxide in the water under photosynthetic, produce oxygen, better absorb organic matter, improve the self -purification of the pond ecosystem system system ability.

After several years of exploration, Wang Jian summarized a set of methods that use the sandy soil to transform the crab pond environment that can filter the mud in water and improve the water quality. White belly, yellow hair, golden claws, and strong body, whether it is the inherent component of the laboratory inspection or the taste of artificial tasting, is difficult to distinguish.

Wang Jian finally realized the dream of making his own Yangcheng Lake.

"Ecological System" with interlocking

But it can be raised, and Wang Jian encounters a tricky problem: there are often cave crabs on crab shells on the crab pond.

Wang Jian did not understand: How could there be holes on the hard crab shell? Is someone deliberately made bad? I have not offended anyone, and it is not easy to operate artificially.

Through Zhou secretly analysis, Wang Jian ruled out the possibility of artificially. What mysterious power can be cut out of the crab shell?

For a long time, Wang Jianri was guarding the pond, but he never found the answer.

In order to find out the problem of the problem, Wang Jian made people install a camera by the crab pond, and there was no dead end monitoring for 24 hours.

Finally, Wang Jian found the "murderer". It turns out that hairy crabs grow from crab seedlings to adults. In the crab during the shelling period, the crab shell cannot be touched like soft shell eggs and cannot protect itself. The crab seedlings can be hid in the water grass for shelling. When crabs grow up, water plants can't cover them.

With the growth of crab breeding years, the ecological environment of the crab pond has improved, attracting a large number of birds such as egrets and gray herons. The crab in the shelling period is easily pecking by birds such as egrets and gray herons.

The egret and gray herons are very vigilant. Once someone is found, it will avoid it. Wang Jian understood the reason why he had nothing to obtain for a few days.

Wang Jian is very hurtful: there are so many egrets and gray herons, and there are so many crab ponds. If people are invited to drive 24 hours, the labor cost can not bear it at all. At the beginning, Wang Jian made a scarecrow around the crab pond, and the scarecrow drifted with the wind. It was effective for a few days, but for a long time, it lost its effect on egret and gray herons. The birds are also smart.

Later, Wang Jian switched to the steep horn to drive away, but the noise of the high decibel not only drove the egret and gray heron, but made the breeding workers upset.

How can I solve the problem of egret eating crab?

Wang Jian talked to his mentor, and the instructor suggested that he try to plant some rice by planting crab ponds.

The instructor said that the principle is simple: the rice is higher than the water surface, and it can provide a good concealment place for crabs for large shelling periods. In addition, crabs are also a good partner of rice. It can not only be a loose soil for rice, but also natural fertilizers. When Wang Jian tried it, it really worked. The mode of raising rice crabs not only solves the problem of bird damage, but also increases the income of rice, which makes him smile.

But what Wang Jian didn't expect was that this crab raising was like Tang Seng Xitian's scriptures, and it was difficult.

After the rice crabs were raised together, the egrets and gray herons lost their threats, but the "rice field killer" Fushou snail and weeds came to harm the rice again.

Fushou snails eat seedlings, and have strong fertility and fast speed, which is extremely harmful to rice. In addition, after planting rice, there are more and more weeds that fight for nutrients with rice, and there is a big deal of noise.

Wang Jian learned that farmers leaned on Daitian to deal with Fushou snails and weeds. But this trick Wang Jian is extremely unparalleled: there are crabs in your own rice fields.

In desperation, Wang Jian could only take the workers and picked the seedlings while picked up the seedlings.

But what caused Wang Jian's headache was that Fu Shouluo was endless, and he couldn't cure it. Artificially picking up snails neither cure the standard nor cure, can only reduce the degree of harm to rice.

These problems made Wang Jian tea not fragrant, and he couldn't sleep at night. He even doubted his dream.

After graduating from the university of the instructor Liu Mengtian, he worked in the city's ecological environment. On this day, Liu Meng Tian went to Wang Jian's crab breeding base, and Wang Jian told her about her distress.

Liu Meng said sweetly and said, "You raising fish!

really? No joke?

Who is joking with you?

According to Liu Mengtian's idea, Wang Jian bought grass, catfish and carp fish fry into the rice fields. The problem really solved.

Why! Where do you learn this trick?

You forgot that my major is ecological. Now I work in the Ecological Environment Bureau and solve problems with ecological and systematic perspectives, but my old business and housekeeping are the first!

Liu Mengtian's words made Wang Jianru pour. It turns out that catfish and carp are mainly animal feed. They especially like to eat pests and blessing snails in rice fields. The grass carp is eaten by weeds. These three types of fish are combined, and the problems of Fushou snails and weeds are solved at the same time.

Since then, in Wang Jian's crab pond, water, crab, rice, snails, grass, and fish constitute a detained and wonderful ecosystem.

Wang Jian's breeding business has gradually stepped on track, and the scale is getting bigger and bigger. After the successful exploration of Yangcheng Lake, Wang Jian did not keep confidential. Instead, he enthusiastically introduced the breeding experience of ecological crabs to other farmers, so that the crab farmers made a lot of money.

Later, Wang Jian and Liu Meng sweetly became a happy couple, creating another wonderful ecosystem.

About the Author:

He Zhen, a member of the Jiangsu Writers Association, a director of the Provincial Society of Literature and Literature; a researcher at the Institute of Environmental Law of Wuhan University, a special researcher at the Socialist Development Research Institute (Think Tank) of Southeast University, and a special commentator of the China Environment Daily. Hundreds of articles such as the People's Daily, Guangming Daily, China Youth Daily and other newspapers.

Source 丨 China Environment News

Question map photography 丨 seedlings

Edit 丨 Qin Chao

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