How to build a fishing pond in the arid north?

First, in arid places, we should first consider the problem of water and avoid building in the loess area.

1. Try to avoid building on the soil of vertical bedding, which is loose and easy to cause soil erosion.

2. It is suitable for construction on parallel bedding, which can effectively prevent soil erosion.

3. It is suitable for construction in oblique places. The lithology of the inclined bottom is hard, not easy to erode, easy to accept sedimentation, and it is a good water storage structure.

Second, the control of water quality.

1. Stir the sediment regularly. Agitation of the sediment can promote the continuous decomposition of the sediment and indirectly control the change of water quality. The area of each stirring is not less than 1 3 of the area of the water body, and the best effect is to stir at noon on a sunny day, but do not stir in hot and low air pressure weather.

2. Transplant aquatic plants. As the primary "productivity" of the water body, aquatic plants can control the growth of algae in fish ponds and play a good role in water purification. According to the actual situation of the fish pond, the farmer can adapt measures to local conditions, scientifically plan, and reasonably introduce transplanted aquatic plants such as black algae, Houttuynia cordata, water hyacinth, duckweed and other aquatic plants in the water body to adjust the water quality and improve the dissolved oxygen level.

3. Aquatic animals. Aquatic animals are the "consumers" in the water body, and proper transplantation can promote the balance of the water ecosystem and achieve the role of regulating water quality. For example, carp and crucian carp can make full use of the residual organic matter in the water body, greatly reduce the corruption and decomposition of organic matter at the bottom of the water body, and reduce the probability of pollution.

Interculture of herring can inhibit the consumption of nutrients and oxygen by snails and other organisms in the water body. Interculture of silver carp can make full use of natural bait resources such as plankton in the water body and control the fertility of the water body. Interbreeding bighead carp can inhibit rotifers in water columns.

Interbreeding grass, bream and bream can ensure sufficient dissolved oxygen in the water body and purify the breeding environment. The interbreeding of mandarin fish, snakehead and sea bass can effectively control the growth and reproduction of wild trash fish and shrimp in the water body, and reduce the competitive pressure of competing for food and oxygen with the main fish.

4. The pH of the pool water not only affects the growth of fish, but also affects the nutrients in the pool water.

5. The choice of plants is very important, different plants have a great impact on fish, trees can improve water quality and maintain water and soil, but different tree species are suitable for different fish, so plant carefully.

Find a place where there is a water source, there are trees, and there are no faults.

The fishing pond I have been to is generally about 3 meters deep, and the pond is clear in winter, so it will make money.

The depth of the water level in the fish pond should be around 3 meters. The area should be large (to cope with the winter pond is not cleared, the fish spend the winter), the main four large fish polyculture, a small amount of bream, tilapia, soft-shelled turtle, etc.

Construction of standard ponds.

Just go up and check it out.

There is a very detailed introduction to this, as well as the construction drawings of the biogas digester, you can't paste it, open it yourself.

Construction technology of biogas digesters.

The basics of biogas.

Biogas and the process of its production.

Brother, first of all, I would like to ask you which city are you in, North or South? Different regions, the species of fish caught are different, in view of the lack of information you provided, I will talk about our fish ponds here, I hope it will be helpful to you.

I am in Shanghai, Shanghai has many friends who love fishing, but unfortunately, there are not many good places for fishing, now we fish in general commercial fish ponds, commercial fish ponds are mainly contracted in the original fish ponds in the countryside, the water depth is generally in the meter to 3 meters, will not be very deep. There is also the use of the relatively narrow water surface of the canal water system, blocking the net at both ends, and contracting it down to make a fish pond. There is also the river that uses the park, and there are basically these types.

The fish fished are mainly crucian carp, bream, grass, blue, bighead carp, silver carp, (fish should know it) are generally bought outside to grow up adult fish into the fish pond for people to fish, few of them raise their own, the larger the body size is best, the more cool it is to catch. The charge is basically based on fishing catties, that is, according to the weight of the fish caught, there are also some fishing days, according to the day to collect money, no matter how much you want to take the money.

These are basically our situations here, but the owners of several fish ponds I have contacted feel that it is more difficult to make fish ponds and make money.

The fish pond is pushed into a rectangle with a bulldozer, and there must be a water source, and there can be no tall buildings next to it. Fishing commercial fish ponds are as easy to grow as possible, and then it depends on what kind of fish customers like to catch; The size of the fish pond depends on how big you want to build; The depth depends on what kind of fish are raised; How big it is depends on your economic benefits.

It is best to choose the water surface of the park. It's complicated, so learn some basics in my space.

Choose the area of the pond according to your natural conditions, it is best to choose a place with good natural conditions, flat land is the worst, the larger the area, the better, and the shape should not be regular. What matters is the water source, preferably water that has been introduced into natural waters, capable of adapting to the survival of fish. Secondly, choose groundwater, well water.

If you still have to consider the problem of wintering in the north, one-third of the area should be more than 3 meters, the deepest should reach 5-6 meters deep, 5 meters from the shore should be covered with sand, and there should be 1-2 aerators.

Strengthen the construction of water conservancy facilities and adopt water-saving and energy-saving technologies. In agriculture, facility agriculture is adopted, sprinkler irrigation, drip irrigation, infiltration irrigation, etc.

Find a way to donate. Start small and save water.

South-to-North Water Diversion.

If only they could find a way to filter the water of the sea into fresh water. The iceberg is melting at the water level at **. "The boat will sink in this way, so hurry up and scoop the water out."

In the spring of each year, China's rain belt is located in South China, and the north, especially the North China Plain, the temperature rises quickly at this time, and there is a lot of wind, evaporation is vigorous, and at this moment the rain belt does not come, and the precipitation is less, so there is a spring drought! Around July, the rain brought to North China and Northeast China, and the Jianghuai River basin was controlled by the subtropical high, and there was a drought in this place! For South China, the summer and autumn temperatures are high, the evaporation is large, and the rain belt is located in the north, so this place is more summer and autumn dry!

It has something to do with too much carbon emissions!

The ecological sand used in the "Renchuang Spring" drinking water project in Mugen Village has the ability of super filtered water treatment and long-term water quality preservation, and the "system integration to form a rainwater collection and utilization system" has won the first prize of the National Science and Technology Progress Award, and the promotion and utilization effect is good in the construction of pools and water cellars in the arid and rainless areas of the north, and it has considerable effect on overcoming the difficulty of water storage and water quality maintenance in the rainwater storage and utilization of karst areas.

In terms of geographical knowledge, the reason for this year's flood in the south and drought in the north is that the air flow from the Siberian Mongolian high pressure is too strong, and the southeast monsoon from the southeast is weak, and it stays in the southern part of our country for a long time, bringing abundant precipitation to the south.

No, it is the rainy season in the Yangtze River area, that is, the 'plum rain', and it is not yet the rainy season in the north.

Affected by the El Niño phenomenon.

Looking at the mountains and rivers of Dongting from afar, there is a green snail on the plate.

1. The character of the nation: the same Han nationality, the northern Han and the southern Han are different. "Since ancient times, Qin soldiers have endured hard battles", Qin soldiers refer to soldiers in northwest China.

In fact, the majestic mountains, arid land, and frequent natural disasters in the north have created the strong physique and hard-working spirit of the northern nations, and the continuous wars in the north from ancient times to the present day have given birth to many outstanding military strategists in China, and have also created the tenacious and hard-working character and strong will of the northern nations. The graceful and beautiful mountains, the land of fish and rice, and the economic affluence of the south have also affected the thinking of the Han people in the south who are small and prosperous, do not want to make progress, and are afraid of war. At the same time, it also created a large number of graceful poets, who played in the mountains and rivers, were obsessed with the Qinhuai River, and consumed their will.

Therefore, the dynasty of the south did not last long.

2. Traditional doctrine: 1. Since ancient China, there is a saying that "the north is the top, the south is the bottom", and the same is true for living at home, the house faces south, facing the south and facing the north, so the north is awe-inspiring and inviolable.

2. Feng Shui Theory (about Feng Shui, there is an article in my Bokeli): Small Feng Shui can make the family business prosperous, and big Feng Shui can set the country and the country. Good feng shui can make people confident, enhance self-confidence, smooth sailing, and achieve great causes.

Bad feng shui can make people sick and sick, depressed and unhappy, and ultimately achieve nothing. The same is true of the state. We know that there are continuous mountains in the north (northwest and northeast), and there are few large rivers, so that some mountain ranges wind hundreds to thousands of miles, majestic and great, and "feng shui" is also meandering for a long time, often forming a place where feng shui converges in a certain area, and can establish a capital with "royal energy".

The mountains in the south are fragmented by dense rivers, making it difficult to form a large feng shui convergence place, so it is not suitable for building a capital.

3. Qimen Dunjia said: In Qimen Dunjia, there is a doctrine of "eight doors and nine stars", namely: eight gates:

Rest, life, injury, Du, scene, death, scene, open; Xiu, Sheng, and Kai are Jimen, in the northwest, north, and northeast of China, while the other directions are the fierce gates. Therefore, China's capitals were basically built in the northwest, north, and northeast, and those built in the south were short-lived dynasties.

First of all, it can effectively control the Northeast and Inner Mongolia, and secondly, it must be different from the previous dynasty