CN116655117A - A method for constructing water ecosystem balance - Google Patents

Abstract

This application discloses a method for constructing a water ecosystem balance, including blocking sewage sources, water source pretreatment, bottom sludge disposal, substrate improvement, submerged plant community construction, aquatic community construction, microbial community construction, post-management and protection, sewage Seine isolation technology is used for source blocking, and wetland pre-purification technology is used for water source pretreatment. The specific content of wetland pre-purification technology is that the sewage treated by the seine isolation technology flows to the front-end reservoir set up in the front section of the water ecosystem construction area. . Through the collection of ecological environment, meteorology, hydrology, and geological data of the area, combined with the technical characteristics of in-situ water ecosystem balance construction, the applicability of this technology in this area was demonstrated, and the current situation was effectively alleviated by introducing advanced surface water purification technology. For the deterioration of the ecological environment, through engineering practice, ecological engineering restoration technologies suitable for local characteristics are gradually formed, and widely promoted in the region to achieve the purpose of comprehensive restoration of the ecological environment.

Description

A method for constructing water ecosystem balance

technical field

The present application relates to the field of water ecological construction, in particular to a method for constructing a water ecological system balance.

Background technique

Due to strong evaporation, dry climate, sufficient sunshine and long time in a certain area of China, the annual rainfall is 72-215mm, and the annual evaporation is 1312-1924mm. In order to balance water evaporation and meet the needs of agricultural irrigation, more than 200 drainage ditches in the Yellow River irrigation area have received a large amount of farmland chemical fertilizers, pesticides, ammonia nitrogen, total phosphorus, COD and other pollutants. Severely exceeded the standard, the concentration of TN in the drainage ditch was tested to be 0.17-8.72mg/L, and the concentration of TP was 0.14-1.02mg/L, facing the double threat of salinization of water and soil and agricultural non-point source pollution. Ecosystem balance construction method.

Contents of the invention

This application provides a water ecosystem balance construction method. Through the collection of ecological environment, meteorology, hydrology, and geological data in this area, combined with the technical characteristics of in-situ water ecosystem balance construction, the applicability of this technology in this area is demonstrated , through the introduction of advanced surface water purification technology, the deterioration of the current ecological environment can be effectively slowed down, and through engineering practice, an ecological engineering restoration technology suitable for local characteristics is gradually formed, and it is widely promoted in the region to achieve the purpose of comprehensive restoration of the ecological environment.

The application provides a method for building a balanced water ecosystem, including: blocking of sewage sources, water source pretreatment, bottom sludge disposal, substrate improvement, submerged plant community building, aquatic community building, microbial community building, and post-management and protection.

Furthermore, seine isolation technology is used to block the source of sewage, and the specific content of the seine isolation technology is as follows:

Set up a seine partition at the sewage input point. The seine partition includes: the permeable fence frame is fixed with aluminum alloy piles, the inner layer of the permeable fence is reinforced with aluminum wire mesh, the outer layer is decorated with polypropylene dense mesh, and the super high-rise is made of soft. Polyurethane foam is wrapped in polypropylene dense mesh, and there is a set elastic space, which can automatically adjust the height with the change of water level.

Furthermore, wetland pre-purification technology is adopted for water source pretreatment, and the specific content of wetland pre-purification technology is as follows:

In the pre-storage set in the front section where the sewage treated by the seine isolation technology flows to the water ecosystem construction area, emergent plants are planted at equal densities inside the front-storage. Emergent plants are specifically reeds. 16-20 plants per square meter.

Further, the specific content of bottom sludge disposal is as follows:

Excavate the silt in the area where the water ecosystem is built, and then disinfect, degrade, and solidify the excavated silt;

After the silt at the bottom of the water ecosystem construction area is removed, the planting soil is backfilled, and the volume of the planting soil backfilled per mu is the same.

Further, the sediment improvement technology adopts the bottom mud bottom quality improvement technology, and the specific content of the bottom mud bottom quality improvement technology includes:

1: Planting soil disinfection

Use bleach as a disinfectant, the specific steps are as follows:

Prepare a sufficient amount of bleaching powder with a chlorine content of 25% to 30%;

Prepare enough urea;

Measure the area of the water ecosystem construction area;

According to the measurement area, prepare the bleaching solution dissolved with bleaching powder, and prepare according to the ratio of 5-7 kilograms of bleaching powder per mu, and the ratio of bleaching powder and water in the bleaching solution is 1:10;

Sprinkle evenly according to 66 kg of bleach per mu, and let it stand for 24 hours after splashing;

Configure urea solution according to the measurement area, according to the ratio of 5-7 kg per mu, the ratio of urea to water is 1:10;

Sprinkle evenly according to 66 kg of urea solution per mu, and sterilize naturally for 5-6 days after splashing;

Planting soil disinfection is complete.

Two: Substrate improvement

Within 3-5 days after the disinfection is completed, put a certain amount of Bacillus, photosynthetic bacteria, nitrifying bacteria, and denitrifying bacteria into the bottom mud of the water ecosystem construction area. The ratio of bacteria and nitrogen-removing bacteria is 1:1:1:1, and the patent number is CN200420109978.3, and the patent name is a device for adding microbial agents to water sludge for Bacillus, photosynthetic bacteria, nitrifying bacteria, The release of denitrification bacteria into the planting soil.

Three: Trace element ratio

Add trace element fertilizers to the planting soil, and put the trace element fertilizers in equal density in the water ecosystem construction area.

Further, the specific content of submerged plant community construction is as follows:

Plant bitter grass, Elodea, Hydrilla verticillium, and hornwort in the area where the water ecosystem is constructed. Plant per square meter, the planting density of Hydrilla verticillium is 10-15 buds per bud, 25-36 buds per square meter, and the planting density of hornwort is 7 buds per bud, 10 buds per square meter.

Further, the specific content of aquatic community construction is as follows:

Put snails, mussels, fish, and cladocera aquatic animals into the water ecosystem construction area, and the stocking density in each mu is the same, wherein the stocking density of snails is 2-3 per square centimeter, and the stocking density of mussels is 2-3 per square centimeter. For 5-6 per square centimeter, the stocking density of fish is 10 tails per square meter, and the stocking density of cladocera is 1-2 per square centimeter.

Further, the specific content of microbial community construction is as follows:

Add beneficial compound microorganisms to the area where the water ecosystem is built, with the same amount per mu.

Further, the specific content of post-management and protection is as follows:

Continuous monitoring of water quality;

Regularly carry out bottom quality improvement according to the actual situation of water quality;

Plant or clean submerged plants on a regular basis according to the actual water quality;

According to the actual situation of water quality, release and clean up aquatic animals on a regular basis;

Adjust the microbial community regularly according to the actual situation of water quality.

It can be known from the above technical solutions that this application provides a method for constructing a water ecosystem balance. The improvement of the bottom quality of the water body is an important step. The specific content is as follows: Including water bottom disinfection and bottom activation, the purpose is to eliminate or slow down the negative impact of water bottom pollution sources on the later ecosystem. Before the implementation of the project, measures such as disinfection and active sludge treatment should be carried out on the bottom mud of the water body according to the needs, the purpose of which is to kill the pathogens in the original eutrophic water bottom, improve the pH of the bottom, and establish or restore the treatment of beneficial microorganisms in the bottom system, promote the growth of submerged plant communities and the recovery and stability of the system, and improve the water quality purification effect.

The specific content of sediment improvement technology includes three parts:

1: Planting soil disinfection

Use bleach as a disinfectant, the specific steps are as follows:

Prepare a sufficient amount of bleaching powder with a chlorine content of 25% to 30%; prepare a sufficient amount of urea; measure the area of the water ecosystem construction area; prepare bleaching solution dissolved in bleaching powder according to the measured area, and use 5-7 kg per mu The ratio of bleaching powder is prepared, and the ratio of bleaching powder and water in the bleaching solution is 1:10; the bleaching solution is evenly splashed according to 66 kg per mu, and left to stand for 24 hours after splashing; the urea solution is configured according to the measurement area, and the urea solution is 5-7 kg per mu The ratio of urea to water is 1:10; 66 kg of urea solution per mu is evenly sprayed, and the natural disinfection is 5-6 days after spraying; the planting soil is disinfected.

Quicklime is combined with urea to disinfect, and chemically reacts with urea to generate chloramine (an oxidant with good disinfection effect, and the dichloramine and trichloramine contained in it are very toxic), which can quickly kill the enemies in the pond. It is an ideal disinfection formula for harmful organisms and wild fish.

The bottom mud disinfection project is to kill pathogenic bacteria on the bottom mud. Plants are vulnerable to varying degrees of trauma during the process of seedling raising, packaging, transportation, and planting. After the bottom mud is disinfected, the survival rate of plants can be effectively improved. It is guaranteed that a good water purification effect can be quickly presented at the initial stage of construction.

Two: Substrate improvement

Within 3-5 days after the disinfection is completed, put a certain amount of Bacillus, photosynthetic bacteria, nitrifying bacteria, and denitrifying bacteria into the bottom mud of the water ecosystem construction area. The ratio of bacteria and nitrogen-removing bacteria is 1:1:1:1, and the patent number is CN200420109978.3, and the patent name is a device for adding microbial agents to water sludge for Bacillus, photosynthetic bacteria, nitrifying bacteria, The release of denitrification bacteria into the planting soil.

Bacillus, photosynthetic bacteria, nitrifying bacteria, denitrifying bacteria and other beneficial microbial colonies are put into the bottom mud, mainly through the respiratory fermentation of microorganisms, the organic matter and other substances that are easy to cause bottom mud are quickly decomposed into CO and HO or converted into harmless substances , so that polluted water can be purified. At the same time, it can effectively decompose nitrogen-containing substances in sediment or water. Among them, Bacillus can decompose organic substances, organic sulfides, organic nitrogen, etc. that produce malodorous gases, greatly improving the sediment environment. Organic matter, sulfide, ammonia, etc. are used as hydrogen donors and carbon sources for photosynthetic microorganisms, which are widely distributed in natural soils, paddy fields, swamps, lakes, rivers and seas, etc., mainly distributed in aquatic environments where light can penetrate hypoxic zone. However, the above microbial preparations cannot maintain the purification effect continuously. In addition, because the addition of microbial preparations cannot restore the water ecosystem of the lake body and restore the self-purification ability of the lake body, the choice of microbial preparations can only be used as a lake for sediment restoration. Pre-processing measures for processing.

The sediment improvement project should be carried out within 3-5 days after the disinfection of the sediment. The main function of the sediment improvement is to decompose the organic matter and harmful substances in the soil, such as nitrate, nitrite, sulfide, etc. , improve the fertilizer efficiency of the original soil, and promote the tillering and reproduction of the plant body.

Three: Trace element ratio

Add trace element fertilizers to the planting soil, and put the trace element fertilizers in equal density in the water ecosystem construction area.

Soil trace element engineering is mainly to supplement the trace elements necessary for plant growth. Trace elements can effectively improve the stress resistance, salt tolerance, and disease resistance of the plant body, enhance the color of the leaves of the plant body, and have a certain effect on the tillering of the plant. enhancement. Trace element fertilizers are suitable for all growth stages of aquatic plants, which can significantly improve the photosynthesis of plants and prolong their life cycle.

The process of management and protection in the later stage is also essential, and continuous monitoring of water quality is carried out;

Regularly carry out bottom quality improvement according to the actual situation of water quality;

Plant or clean submerged plants on a regular basis according to the actual water quality;

According to the actual situation of water quality, release and clean up aquatic animals on a regular basis;

Regularly adjust the microbial community according to the actual water quality. Through the improvement of the substrate, the adjustment of submerged plants, the adjustment of aquatic animals, and the adjustment of the microbial community, the entire water ecosystem construction area is always kept in a balanced state.

In summary, the beneficial effects produced by the application are as follows:

1. By adopting in-situ water ecosystem balance construction technology to comprehensively control its water quality, at present, the water quality of the lake is maintained at Class III of the surface water environmental quality standard, the water body is clear and transparent, the water landscape effect is good, and the revetment plant landscape is also very beautiful .

2. The bottom quality improvement process effectively improves the bottom mud, and backfills the planting soil after treating the silt. The planting soil is suitable for the growth of aquatic plants after disinfection, improvement, and adding trace elements, effectively ensuring the growth of aquatic plants and maintaining the entire aquatic ecology The system builds the ecological balance of the region.

3. The post-management and protection can continuously monitor the entire water ecosystem construction area. Under continuous monitoring, the imbalanced water ecosystem construction area can be adjusted in time to ensure water quality.

Description of drawings

In order to illustrate the technical solution of the present application more clearly, the accompanying drawings used in the implementation cases will be briefly introduced below. Obviously, for those of ordinary skill in the art, on the premise of not paying creative labor, Additional drawings can also be derived from these drawings.

Figure 1 is a schematic diagram of the water ecosystem balance construction of the present application.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

From the above technical solution, see Fig. 1 .

Example 1:

A method for constructing a balanced aquatic ecosystem, including: blocking of sewage sources, water source pretreatment, bottom sludge disposal, substrate improvement, submerged plant community construction, aquatic community construction, microbial community construction, and post-management and protection.

As a preferred implementation mode, seine isolation technology is used to block the source of sewage, and the specific content of the seine isolation technology is:

Set up a seine partition at the sewage input point. The seine partition includes: the permeable fence frame is fixed with aluminum alloy piles, the inner layer of the permeable fence is reinforced with aluminum wire mesh, the outer layer is decorated with polypropylene dense mesh, and the super high-rise is made of soft. Polyurethane foam is wrapped in polypropylene dense mesh, and there is a set elastic space, which can automatically adjust the height with the change of water level.

As a preferred implementation mode, wetland pre-purification technology is used for water source pretreatment, and the specific content of wetland pre-purification technology is as follows:

In the pre-storage set in the front section where the sewage treated by the seine isolation technology flows to the water ecosystem construction area, emergent plants are planted at equal densities inside the front-storage. Emergent plants are specifically reeds. 16-20 plants per square meter.

Usually, when the water source is not ideal, a front-end reservoir is set up in the front of the water ecosystem construction area, and appropriate emergent plants are planned in the reservoir, which can absorb and absorb organic matter and suspended matter in the water well. Nitrogen, phosphorus and other elements provide a natural barrier for the subsequent stable operation of the ecosystem.

As a preferred embodiment, the specific content of bottom sludge disposal is:

Excavate the silt in the area where the water ecosystem is built, and then disinfect, degrade, and solidify the excavated silt;

After the silt at the bottom of the water ecosystem construction area is removed, the planting soil is backfilled, and the volume of the planting soil backfilled per mu is the same.

As a preferred embodiment, the sediment improvement technology adopts the sediment improvement technology, and the sediment improvement includes disinfection and activation of the bottom of the water body, the purpose of which is to eliminate or slow down the negative impact of the pollution source of the bottom of the water body on the ecosystem in the later stage. Before the implementation of the project, measures such as disinfection and active sludge treatment should be carried out on the bottom mud of the water body according to the needs, the purpose of which is to kill the pathogens in the original eutrophic water bottom, improve the pH of the bottom, and establish or restore the treatment of beneficial microorganisms in the bottom system, promote the growth of submerged plant communities and the recovery and stability of the system, and improve the water quality purification effect.

The specific content of sediment improvement technology includes:

1: Planting soil disinfection

Use bleach as a disinfectant, the specific steps are as follows:

Prepare a sufficient amount of bleaching powder with a chlorine content of 25% to 30%;

Prepare enough urea;

Measure the area of the water ecosystem construction area;

According to the measurement area, prepare the bleaching solution dissolved with bleaching powder, and prepare according to the ratio of 5-7 kilograms of bleaching powder per mu, and the ratio of bleaching powder and water in the bleaching solution is 1:10;

Sprinkle evenly according to 66 kg of bleach per mu, and let it stand for 24 hours after splashing;

Configure urea solution according to the measurement area, according to the ratio of 5-7 kg per mu, the ratio of urea to water is 1:10;

Sprinkle evenly according to 66 kg of urea solution per mu, and sterilize naturally for 5-6 days after splashing;

Planting soil disinfection is complete.

Quicklime is combined with urea to disinfect, and chemically reacts with urea to generate chloramine (an oxidant with good disinfection effect, and the dichloramine and trichloramine contained in it are very toxic), which can quickly kill the enemies in the pond. It is an ideal disinfection formula for harmful organisms and wild fish.

The bottom mud disinfection project is to kill pathogenic bacteria on the bottom mud. Plants are vulnerable to varying degrees of trauma during the process of seedling raising, packaging, transportation, and planting. After the bottom mud is disinfected, the survival rate of plants can be effectively improved. It is guaranteed that a good water purification effect can be quickly presented at the initial stage of construction.

Two: Substrate improvement

Within 3-5 days after the disinfection is completed, put a certain amount of Bacillus, photosynthetic bacteria, nitrifying bacteria, and denitrifying bacteria into the bottom mud of the water ecosystem construction area. The ratio of bacteria and nitrogen-removing bacteria is 1:1:1:1, and the patent number is CN200420109978.3, and the patent name is a device for adding microbial agents to water sludge for Bacillus, photosynthetic bacteria, nitrifying bacteria, The release of denitrification bacteria into the planting soil.

Bacillus, photosynthetic bacteria, nitrifying bacteria, denitrifying bacteria and other beneficial microbial colonies are put into the bottom mud, mainly through the respiratory fermentation of microorganisms, the organic matter and other substances that are easy to cause bottom mud are quickly decomposed into CO and HO or converted into harmless substances , so that polluted water can be purified. At the same time, it can effectively decompose nitrogen-containing substances in sediment or water. Among them, Bacillus can decompose organic substances, organic sulfides, organic nitrogen, etc. that produce malodorous gases, greatly improving the sediment environment. Organic matter, sulfide, ammonia, etc. are used as hydrogen donors and carbon sources for photosynthetic microorganisms, which are widely distributed in soil, paddy fields, swamps, lakes, rivers and seas in nature, and are mainly distributed in aquatic environments where light can penetrate hypoxic zone. However, the above microbial preparations cannot maintain the purification effect continuously. In addition, the addition of microbial preparations cannot restore the water ecosystem of the lake and restore the self-purification ability of the lake. Therefore, the choice of microbial preparations can only be used as a lake to restore sediment Pre-processing measures for processing.

The sediment improvement project should be carried out within 3-5 days after the disinfection of the sediment. The main function of the sediment improvement is to decompose the organic matter and harmful substances in the soil, such as nitrate, nitrite, sulfide, etc. , improve the fertilizer efficiency of the original soil, and promote the tillering and reproduction of the plant body.

Three: Trace element ratio

Add trace element fertilizers to the planting soil, and put the trace element fertilizers in equal density in the water ecosystem construction area.

Soil trace element engineering is mainly to supplement the trace elements necessary for plant growth. Trace elements can effectively improve the stress resistance, salt tolerance, and disease resistance of the plant body, have a color-enhancing effect on the leaves of the plant body, and have a certain effect on the tillering of the plant. enhancement. Trace element fertilizers are suitable for all growth stages of aquatic plants, which can significantly improve the photosynthesis of plants and prolong their life cycle.

As a preferred embodiment, the specific content of submerged plant community construction is:

Plant bitter grass, Elodea, Hydrilla verticillium, and hornwort in the area where the water ecosystem is constructed. Plant per square meter, the planting density of Hydrilla verticillium is 10-15 buds per bud, 25-36 buds per square meter, and the planting density of hornwort is 7 buds per bud, 10 buds per square meter.

The planting of aquatic plants is an important link in the construction of an in-situ water ecosystem. It is a key biological community to achieve water self-purification and ecological restoration, and is also an important part of the project to show a beautiful water landscape. Therefore, the design and configuration are suitable for various water bodies and various seasons. Planting aquatic plants not only increases the landscape effect of the water body, but also maintains the principle of biodiversity and enhances the stability of the ecosystem. As the main primary producers of water bodies, submerged plants play an irreplaceable role in aquatic ecosystems. When submerged plants are abundant, the water body is characterized by clear water quality, high dissolved oxygen, low algae density, and high biodiversity. Conversely, when submerged plants disappear and the water body is in a high nutrient state, the high-temperature season generally has high algae density, low biodiversity, and turbid water quality. Submerged plants can affect freshwater ecosystems in many ways. First of all, it can consume a large amount of nitrogen, phosphorus and other substances in the water body, promote the deposition of nutrients, reduce the nutrient content of the water body; it can also absorb and enrich pollutants, and improve the self-purification ability of the water body. Secondly, many aquatic plants, especially submerged plants, release biological factors through competition with the same ecological niche, which has a significant inhibitory effect on the growth of toxic algae. At the same time, large submerged plants can also provide attachment surfaces for the growth of native species and microorganisms in the water body, and provide bait, habitat and breeding places for some aquatic animals in the water body. In addition, the secondary oxygen produced by the photosynthesis of submerged plants can kill harmful bacteria. Under strong photosynthesis, organic flocs can be produced in the water, forming an air flotation effect, and making them oxidize and decompose quickly, reducing BOD in the water; and COD. Therefore, submerged vegetation is the basis for maintaining the diversity of aquatic ecosystems and plays an important role in aquatic ecosystems.

As a preferred embodiment, the specific content of aquatic community construction is:

Put snails, mussels, fish, and cladocera aquatic animals into the water ecosystem construction area, and the stocking density in each mu is the same, wherein the stocking density of snails is 2-3 per square centimeter, and the stocking density of mussels is 2-3 per square centimeter. For 5-6 per square centimeter, the stocking density of fish is 10 tails per square meter, and the stocking density of cladocera is 1-2 per square centimeter.

After the vegetation of the water body is restored, aquatic animals are introduced to enrich the food chain. Aquatic organisms have a special status and role in the material circulation and flow of the aquatic ecosystem. It is of great significance to the balance and stability of the ecosystem in the later stage. Therefore, for the construction of benign aquatic ecosystems and the protection of water quality, it is very necessary to construct a reasonable aquatic biome.

The stocking of aquatic animals will fully consider the configuration structure of aquatic animal species (spatial-temporal structure and nutritional structure), scientifically and rationally design the stocking mode of aquatic animals (species, quantity, sex ratio, individual size, feeding habits, living habits, stocking season, stocking season, etc.) Sequence, etc.) to make the biomass and biological density of various groups reach the nutritional level, and use the ecological effect produced by the food chain relationship of carnivorous fish-filter-feeding fish-zooplankton-algae-nutrient substances to reduce nutrients and purify The role of water quality.

As a preferred embodiment, the specific content of microbial community construction is:

Add beneficial compound microorganisms to the area where the water ecosystem is built, with the same amount per mu.

Microorganisms are an important part of aquatic ecosystems, located at the front and end of the food chain. It decomposes the pollutants in the water, consumes dissolved oxygen and recovers, and the number of circulating heterooxygen cells peaks to absorb and adsorb PY animals. At the same time, it converts organic matter that cannot be absorbed by other organisms into inorganic components through its own metabolism, which can be used by aquatic plants.

The distribution of microorganisms in the water body includes sediment microbial groups and suspended microbial groups. The former decomposes sediments, while the latter decomposes dissolved pollutants. The ecological niches of the two complement each other to form a three-dimensional purification function. Studies have shown that a new landscape water body lacks a sufficient amount of decomposer microorganisms, so a certain amount of microbial preparations should be added to the water body, so that the microorganisms that decompose organic matter dominate the community, which can promote the mineralization of organic matter in water. Microbial preparations must contain a certain amount of live bacteria, generally requiring more than 300 million live bacteria per milliliter, and the vitality must be strong. This type of creature should be used as much as possible after obtaining the provenance locally.

As a preferred implementation mode, the specific content of post-management and protection is:

Continuous monitoring of water quality;

Regularly carry out bottom quality improvement according to the actual situation of water quality;

Plant or clean submerged plants on a regular basis according to the actual water quality;

According to the actual situation of water quality, release and clean up aquatic animals on a regular basis;

Adjust the microbial community regularly according to the actual situation of water quality.

Other embodiments of the application will be readily apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any modification, use or adaptation of the application, these modifications, uses or adaptations follow the general principles of the application and include common knowledge or conventional technical means in the technical field not disclosed in the application . The specification and examples are to be considered exemplary only, with the true scope of the application indicated by the claims.

It should be understood that the present application is not limited to the precise constructions which have been described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The embodiments of the present application described above are not intended to limit the scope of protection of the present application.

Claims (9)

1. A method for constructing a water ecosystem balance, characterized in that, comprising: blocking of sewage source, water source pretreatment, bottom sludge disposal, substrate improvement, submerged plant community construction, aquatic community construction, microbial community construction, post-management protect. 2. A kind of water ecological system balance construction method according to claim 1, is characterized in that, described sewage source is blocked and adopts fence to cut off technology, and the specific content of described fence to cut off technology is: Set up a seine partition at the sewage input point. The seine partition includes: the permeable fence frame is fixed with aluminum alloy piles, the inner layer of the permeable fence is reinforced with aluminum wire mesh, the outer layer is decorated with polypropylene dense mesh, and the super high-rise is made of soft. Polyurethane foam is wrapped in polypropylene dense mesh, and there is a set elastic space, which can automatically adjust the height with the change of water level. 3. A method for constructing a water ecosystem balance according to claim 1, wherein the water source pretreatment adopts wetland pre-purification technology, and the specific content of the wetland pre-purification technology is: In the pre-storage set before the sewage treated by the seine isolation technology flows to the water ecosystem construction area, emergent plants are planted at equal densities in the front-storage, and the emergent plants are specifically reeds, The planting density of the reeds is 16-20 per square meter. 4. a kind of water ecosystem balance construction method according to claim 1, is characterized in that, the specific content of described bottom silt disposal is: Excavate the silt in the area where the water ecosystem is built, and then disinfect, degrade, and solidify the excavated silt; After the silt at the bottom of the water ecosystem construction area is removed, the planting soil is backfilled, and the volume of the planting soil backfilled per mu is the same. 5. a kind of water ecosystem balance construction method according to claim 1, is characterized in that, described bottom quality improvement adopts bottom mud bottom quality improvement technology, and described bottom mud bottom quality improvement technology specific content comprises: 1: Planting soil disinfection Use bleach as a disinfectant, the specific steps are as follows: Prepare a sufficient amount of bleaching powder with a chlorine content of 25% to 30%; Prepare enough urea; Measure the area of the water ecosystem construction area; Prepare the bleaching solution dissolved with bleaching powder according to the measured area, prepare according to the bleaching powder ratio of 5-7 kilograms per mu, and the ratio of bleaching powder and water in the bleaching solution is 1:10; Sprinkle evenly according to 66 kilograms of bleach per mu, and let it stand for 24 hours after splashing; Configure urea solution according to the measurement area, prepare according to the ratio of 5-7 kilograms per mu, and the ratio of urea and water is 1:10; Sprinkle evenly according to the urea solution of 66 kilograms per mu, and sterilize naturally for 5-6 days after splashing; The disinfection of the planting soil is completed. Two: Substrate improvement Within 3-5 days after the disinfection is completed, put a certain amount of Bacillus, photosynthetic bacteria, nitrifying bacteria, and denitrifying bacteria into the bottom mud of the water ecosystem construction area. The ratio of bacteria and nitrogen-removing bacteria is 1:1:1:1, and the patent number is CN200420109978.3, and the patent name is a device for adding microbial agents to water sludge for Bacillus, photosynthetic bacteria, nitrifying bacteria, The release of denitrification bacteria into the planting soil. Three: Trace element ratio Add trace element fertilizers to the planting soil, and the trace element fertilizers are placed in equal density in the area where the water ecosystem is constructed. 6. A kind of water ecosystem balance construction method according to claim 1, is characterized in that, the concrete content of described submerged plant community construction is: To the water ecosystem construction area planting balsamic grass, Elodea, Hydrilla verticillium, hornwort, the planting density in every mu is the same, wherein the planting density of said licorice is 40-60 strains per square meter, the planting density of said elodea The planting density is 40 plants per square meter, the planting density of the Hydrilla verticillium is 10-15 buds per bud, 25-36 buds per square meter, and the hornwort planting density is 7 buds per bud, 10 buds per square meter. 7. A kind of water ecosystem balance construction method according to claim 1, is characterized in that, described aquatic community construction specific content is: Throw in snails, mussels, fish, and cladocera aquatic animals to the water ecosystem construction area, and the density of putting in every mu is the same, wherein the density of putting in the snails is 2-3 per square centimeter, and the mussels The stocking density of species is 5-6 per square centimeter, the stocking density of described fish is 10 tails per square meter, and the stocking density of described cladocera is 1-2 per square centimeter. 8. a kind of water ecosystem balance construction method according to claim 1, is characterized in that, described microbial community construction specific content is: Add beneficial composite microorganisms to the water ecosystem construction area, and the dosage of the beneficial composite microorganisms in each mu is the same. 9. a kind of water ecosystem balance construction method according to claim 1, is characterized in that, the specific content of described late stage management and protection is: Continuous monitoring of water quality; Regularly carry out bottom quality improvement according to the actual situation of water quality; Plant or clean submerged plants on a regular basis according to the actual water quality; According to the actual situation of water quality, release and clean up aquatic animals on a regular basis; Adjust the microbial community regularly according to the actual situation of water quality.