CN113716714A - Watershed ecological restoration method and comprehensive remediation technology - Google Patents
Watershed ecological restoration method and comprehensive remediation technology Download PDFInfo
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/342—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the enzymes used
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Microbiology (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Hydroponics (AREA)
Abstract
The invention provides a watershed ecological restoration method and a comprehensive treatment technology, and relates to the technical field of river ecological treatment. The method for restoring the ecology in the drainage basin comprises the following steps: A) repairing steps on river slopes on two sides of the river water area and planting lawns and shrubs; B) planting large crown trees and lawns on the river bank open land; C) planting water-lifting plants and submerged plants in the river; D) and putting fishes for culture in the river. The steps are dug out on the river slope, the lawn and the shrub are planted, the effect of storing water and retaining soil is achieved by a method of changing micro-topography, emergent aquatic plants and submerged plants are planted, the emergent aquatic plants and the submerged plants are used for absorbing and degrading pollutants, the effect of purifying water quality is achieved, the method of increasing oxygen in the water body is used for promoting the growth and the propagation of aerobic bacteria, the purpose of enhancing and accelerating the decomposition of organic pollutants in water is achieved, the ecological environment of a river basin is controlled in multiple directions, the ecological environment of the river can be thoroughly improved, and the method is worthy of wide popularization.
Description
Technical Field
The invention relates to the technical field of river ecological management, in particular to a basin ecological restoration method and a comprehensive treatment technology.
Background
The ecological restoration is a comprehensive method for restoring polluted environment, which achieves the best effect and the lowest consumption by optimally combining various physical restoration, chemical restoration and engineering technical measures under the guidance of an ecological principle and combining the biological restoration, the ecological restoration is smoothly implemented, and the restoration and the maintenance of a damaged ecological system relate to various ecological theories such as ecological stability, ecological plasticity, stable state transformation and the like, and the ecological restoration needs the participation of multiple subjects such as ecology, physics, chemistry, botany, microbiology, molecular biology, cultivation, environmental engineering and the like.
At present, most of the traditional river water areas are treated only by cleaning silt at the river bottom, and the treatment mode only can treat the river for a short time, is poor in systematicness and cannot thoroughly improve the ecological environment of the river.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a watershed ecological restoration method and a comprehensive treatment technology, and solves the problems that the traditional river ecological treatment is poor in systematicness and cannot thoroughly improve the river ecological environment.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a watershed ecological restoration method comprises the following steps:
A) ditching, digging pits and building peduncles along contour lines on river slopes on two sides of the river water area, building steps with different degrees, and planting lawns and shrubs alternately distributed on the steps to change the micro-topography of the river slopes;
B) reserving vacant lands with the width of 20-25 m on the river banks on two sides of the river water area, planting large-scale crown trees on the vacant lands, and laying lawns on the ground of the vacant lands to form a first defense line for controlling non-point source pollution;
C) planting emergent aquatic plants on the beach lands at two sides of the river water area, and planting submerged plants at the bottom of the river water area;
D) and uniformly putting a certain amount of fishes in the river water area for culture, and putting benthonic animals at the bottom of the river for culture.
Preferably, the drainage basin comprehensive remediation technology comprises the following modes:
A) installing a large aerator at the upstream of the river water area to increase the oxygen content in the water body, and installing an oxygen content detector at the downstream of the river water area to detect the oxygen content in the water body;
B) filling pebbles in gullies or cliff terrains on the riverbed to reform into flat ground or gentle slopes;
C) uniformly putting bioactive enzymes on the river water area every 7-10 days, wherein the weight of the bioactive enzymes put in each time is 40-50 Kg, and decomposing microorganisms in the water body by the bioactive enzymes;
D) before river regulation, firstly intercepting the upstream of a river to change the direction, then using a water pump to completely pump out the water in the river, then cleaning sludge on the river bed by workers, transferring the sludge into a field as fertilizer to fertilize the field, and opening the interception of the upstream of the river after the sludge is cleaned;
E) and a sewage treatment plant is established at the downstream of the river water area, and domestic sewage and industrial sewage in the city are purified by the sewage treatment plant and then discharged into the river.
Preferably, in the mode A), the height of each step is 15-20 cm, the width is 20-25 cm, and in the mode B), the large-scale tree crown trees comprise one or more of albizia trees, camphor trees and paulownia trees.
Preferably, in the mode C), emergent aquatic plants comprise one or more of loosestrife, yellow iris, shallot, religious flower, aquatic canna, cattail pollen and hydropipes, submerged plants comprise one or more of goldfish algae, stonecrop, racoon cat algae and eyefish, in the mode D), the fish species to be thrown comprise one or more of grass carp, silver carp, bighead carp, dace and herring, and the benthonic animal species to be thrown comprise one or more of spiral shell, freshwater mussel, limnodrilus, branchilla caudatifolia and corbicula fluminea.
Preferably, in the mode C), the biologically active enzyme includes one or more of protease, catalase and cellulase.
(III) advantageous effects
The invention provides a watershed ecological restoration method and a comprehensive treatment technology. The method has the following beneficial effects:
1. the invention excavates steps on the river slope and plants lawns and shrubs, and plays a role in retaining water and soil by changing the micro-topography and reducing the impact and the nutrition degree of organic matters on the river channel and the lake; the trees and the lawns planted on the river bank can reduce water and soil loss, and the deep and dense root hairs and the lawns can form a soil biological system to enhance the ecological function; emergent aquatic plants and submerged plants are planted to achieve the effect of purifying water quality by utilizing the absorption and degradation effects of the emergent aquatic plants and the submerged plants on pollutants, microorganisms are propagated by root secretions to enhance the activity of the microorganisms, and the purification capacity of polluted water is accelerated; the fishes can freely migrate in the water, so that the river channel is vigorous, and the benthic animals absorb impurities at the bottom of the water, so that the water quality is clear.
2. The invention promotes the growth and the propagation of aerobic bacteria by a method of increasing oxygen in the water body so as to achieve the aim of enhancing and accelerating the decomposition of organic pollutants in water; adding bioactive enzyme to precipitate at the bottom of water, and removing ammonia nitrogen and oxygen-consuming organic matters in the bottom sludge and the water body; dredging the river channel to deepen and widen the river channel through treatment, so that river water becomes clear; the sewage is treated and then discharged, so that the sewage is prevented from directly polluting the water area environment, the ecological environment of the river basin is treated in a multi-direction manner by combining ecology, chemistry, plants and physics, the ecological environment of the river can be thoroughly improved, the maintenance time is long, and the method is worthy of vigorous popularization.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a watershed ecological restoration method, which comprises the following steps:
A) ditching, digging, building peduncles on the river slopes at two sides of the river water area along the contour lines, building steps with different degrees, planting lawns and shrubs on the steps in an alternate distribution manner, achieving the effect of retaining water and retaining soil by using a method for changing micro-topography, wherein the lawns and shrubs planted on the steps can form a soil biological system with soil, and the soil biological system can also play a role in reducing the impact of organic matters on rivers and lakes and the degree of nutrition like forests and lawns at two sides, the root hairs of some shrubs can also directly extend into the water body to absorb the nutrition in water, the river slopes are natural transition zones from the water area to the land area, the combination of the lawns, the shrubs and the soil improves the temperature and the humidity, provides food, stabilizes the side slopes, prevents water and soil loss, changes the hard, straight and light images of the slope protection, and provides people with green and soft effects, Colorful enjoyment is achieved;
B) reserving vacant lands with the width of 25m on the river banks on two sides of the river water area, planting large-scale crown trees on the vacant lands, and laying lawns on the ground of the vacant lands at the same time to form a first defense line for controlling non-point source pollution, reduce water and soil loss, root the trees in the soil, and form a soil biological system with deep and dense roots and lawns so as to enhance the ecological function; the combination of the forest belt lawn and the river channel on the bank can also effectively improve the temperature, humidity and comfort level of the area, form a unique landscape and improve the landscape;
C) planting emergent aquatic plants on the beach lands on two sides of the river water area, planting submerged plants on the water bottom of the river water area, planting aquatic plants, and utilizing the absorption and degradation effects of the aquatic plants on pollutants to achieve the water quality purification effect, wherein in the growth process of the aquatic plants, a large amount of nutrient elements such as nitrogen, phosphorus and the like and nutrient substances in water need to be absorbed, nutrient salts in the water are removed through the enrichment effect, the aquatic plants have the water purification function, the root system parts of the aquatic plants can adsorb organic pollution and purify the water body, oxygen can be conveyed into the water body, the microorganisms help the submerged plants to absorb the nutrients in the water body, and meanwhile, the microorganisms breed by virtue of the root secretions to enhance the activity of the microorganisms and accelerate the purification capacity of the polluted water body;
D) and a certain amount of fishes are uniformly thrown in the river water area for culture, benthonic animals are thrown at the bottom of the river for culture, the fishes freely migrate in the water, and the waves are flushly emitted on the water surface, so that the river and the lake are vigorous, and the benthonic animals absorb impurities at the bottom of the river, so that the water quality is clear.
A drainage basin comprehensive remediation technology comprises the following modes:
A) installing a large aerator at the upstream of the river water area to increase the oxygen content in the water body, installing an oxygen content detector at the downstream of the river water area to detect the oxygen content in the water body, and promoting the growth and the propagation of aerobic bacteria by increasing the oxygen in the water body so as to achieve the purpose of enhancing and accelerating the decomposition of organic pollutants in the water;
B) filling cobbles in gully or cliff landform on the riverbed to transform the gully or cliff landform into flat ground or gentle slope, effectively promoting the flow of the water body and ensuring the mobility of the water body;
C) uniformly throwing bioactive enzymes on a river water area every 10 days, wherein the weight of the bioactive enzymes thrown every time is 50Kg, decomposing microorganisms in the water body through the bioactive enzymes, precipitating the bioactive enzymes to the bottom of the water, removing ammonia nitrogen and oxygen-consuming organic matters in bottom mud and the water body, decomposing and mineralizing the organic matters in the water body, adjusting the water quality, improving the transparency, and effectively promoting and improving the processes of migration, conversion and output of the organic matters and nutritive salts in the water;
D) before river channel treatment, firstly intercepting the upstream of a river to change the direction, then completely pumping out the water body in the river by using a water pump, then cleaning sludge on the river bed by workers, transferring the sludge into a field as fertilizer to fertilize the field, opening the interception of the upstream of the river after the sludge is cleaned, and dredging the river channel to deepen and widen the river channel through treatment so as to clear the river channel;
E) and a sewage treatment plant is established at the downstream of the river water area, domestic sewage and industrial sewage in the city are purified by the sewage treatment plant and then discharged into the river, and the sewage is treated and then discharged, so that the sewage is prevented from directly polluting the environment of the water area.
In the mode A), the height of each step is 20cm, the width is 25cm, and in the mode B), the large-scale tree crown trees comprise one or more of albizia trees, camphor trees and paulownia trees.
In the mode C), emergent aquatic plants comprise one or more of loosestrife, yellow iris, allium fistulosum, thalictrum floribundum, aquatic canna, cattail pollen and hydropiper, submerged plants comprise one or more of goldfish algae, stonecrop, racoon dog algae and potamogeton indica, and in the mode D), the types of thrown fishes comprise one or more of grass carp, silver carp, bighead carp, dace and herring, and the types of thrown benthonic animals comprise one or more of spiral shell, freshwater mussel, limnodrilus, branchionurus and corbicula fluminea.
In the mode C), the bioactive enzyme comprises one or more of protease, catalase and cellulase.
Example two:
the embodiment of the invention provides a watershed ecological restoration method, which comprises the following steps:
A) ditching, digging, building peduncles on the river slopes at two sides of the river water area along the contour lines, building steps with different degrees, planting lawns and shrubs on the steps in an alternate distribution manner, achieving the effect of retaining water and retaining soil by using a method for changing micro-topography, wherein the lawns and shrubs planted on the steps can form a soil biological system with soil, and the soil biological system can also play a role in reducing the impact of organic matters on rivers and lakes and the degree of nutrition like forests and lawns at two sides, the root hairs of some shrubs can also directly extend into the water body to absorb the nutrition in water, the river slopes are natural transition zones from the water area to the land area, the combination of the lawns, the shrubs and the soil improves the temperature and the humidity, provides food, stabilizes the side slopes, prevents water and soil loss, changes the hard, straight and light images of the slope protection, and provides people with green and soft effects, Colorful enjoyment is achieved;
B) reserving vacant lands with the width of 20m on the river banks on two sides of the river water area, planting large-scale crown trees on the vacant lands, and laying lawns on the ground of the vacant lands at the same time to form a first defense line for controlling non-point source pollution, reduce water and soil loss, root the trees in the soil, and form a soil biological system with deep and dense roots and lawns so as to enhance the ecological function; the combination of the forest belt lawn and the river channel on the bank can also effectively improve the temperature, humidity and comfort level of the area, form a unique landscape and improve the landscape;
C) planting emergent aquatic plants on the beach lands on two sides of the river water area, planting submerged plants on the water bottom of the river water area, and planting aquatic plants to achieve the effect of purifying water by utilizing the absorption and degradation effects of the aquatic plants on pollutants. In the growth process of the aquatic plants, a large amount of nutrient elements such as nitrogen, phosphorus and the like and nutrient substances in water need to be absorbed, nutrient salts in the water are removed through the enrichment effect, the aquatic plants have the water purification function, the root system parts of the aquatic plants can adsorb organic pollution and purify the water, oxygen can be conveyed into the water, the microorganisms help submerged plants to absorb nutrients in the water, and meanwhile, the microorganisms are propagated by the secretions of the roots to enhance the activity of the microorganisms and accelerate the purification capacity of the polluted water;
D) and a certain amount of fishes are uniformly thrown in the river water area for culture, benthonic animals are thrown at the bottom of the river for culture, the fishes freely migrate in the water, and the waves are flushly emitted on the water surface, so that the river and the lake are vigorous, and the benthonic animals absorb impurities at the bottom of the river, so that the water quality is clear.
A drainage basin comprehensive remediation technology comprises the following modes:
A) installing a large aerator at the upstream of the river water area to increase the oxygen content in the water body, installing an oxygen content detector at the downstream of the river water area to detect the oxygen content in the water body, and promoting the growth and the propagation of aerobic bacteria by increasing the oxygen in the water body so as to achieve the purpose of enhancing and accelerating the decomposition of organic pollutants in the water;
B) filling cobbles in gully or cliff landform on the riverbed to transform the gully or cliff landform into flat ground or gentle slope, effectively promoting the flow of the water body and ensuring the mobility of the water body;
C) uniformly throwing the bioactive enzyme on the river water area every 7 days, wherein the weight of the bioactive enzyme thrown every time is 40Kg, decomposing microorganisms in the water body through the bioactive enzyme, precipitating the bioactive enzyme to the bottom of the water, and removing ammonia nitrogen and oxygen-consuming organic matters in bottom mud and the water body;
D) before river channel treatment, firstly intercepting the upstream of a river to change the direction, then completely pumping out the water body in the river by using a water pump, then cleaning sludge on the river bed by workers, transferring the sludge into a field as fertilizer to fertilize the field, opening the interception of the upstream of the river after the sludge is cleaned, and dredging the river channel to deepen and widen the river channel through treatment so as to clear the river channel;
E) and a sewage treatment plant is established at the downstream of the river water area, domestic sewage and industrial sewage in the city are purified by the sewage treatment plant and then discharged into the river, and the sewage is treated and then discharged, so that the sewage is prevented from directly polluting the environment of the water area.
In the mode A), the height of each step is 15cm, the width is 20cm, and in the mode B), the large-scale tree crown trees comprise one or more of albizia trees, camphor trees and paulownia trees.
In the mode C), emergent aquatic plants comprise one or more of loosestrife, yellow iris, allium fistulosum, thalictrum floribundum, aquatic canna, cattail pollen and hydropiper, submerged plants comprise one or more of goldfish algae, stonecrop, racoon dog algae and potamogeton indica, and in the mode D), the types of thrown fishes comprise one or more of grass carp, silver carp, bighead carp, dace and herring, and the types of thrown benthonic animals comprise one or more of spiral shell, freshwater mussel, limnodrilus, branchionurus and corbicula fluminea.
In the mode C), the bioactive enzyme comprises one or more of protease, catalase and cellulase.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A watershed ecological restoration method is characterized by comprising the following steps: the method comprises the following steps:
A) ditching, digging pits and building peduncles along contour lines on river slopes on two sides of the river water area, building steps with different degrees, and planting lawns and shrubs alternately distributed on the steps to change the micro-topography of the river slopes;
B) reserving an empty space with the width of 20-25 m on the lawn on the river banks on two sides of the river water area, planting large-scale crown trees on the empty space, and laying a first defense line for controlling the non-point source pollution on the ground of the empty space;
C) planting emergent aquatic plants on the beach lands at two sides of the river water area, and planting submerged plants at the bottom of the river water area;
D) and uniformly putting a certain amount of fishes in the river water area for culture, and putting benthonic animals at the bottom of the river for culture.
2. The comprehensive watershed remediation technology of claim 1, wherein: the method comprises the following steps:
A) installing a large aerator at the upstream of the river water area to increase the oxygen content in the water body, and installing an oxygen content detector at the downstream of the river water area to detect the oxygen content in the water body;
B) filling pebbles in gullies or cliff terrains on the riverbed to reform into flat ground or gentle slopes;
C) uniformly putting bioactive enzymes on the river water area every 7-10 days, wherein the weight of the bioactive enzymes put in each time is 40-50 Kg, and decomposing microorganisms in the water body by the bioactive enzymes;
D) before river regulation, firstly intercepting the upstream of a river to change the direction, then using a water pump to completely pump out the water in the river, then cleaning sludge on the river bed by workers, transferring the sludge into a field as fertilizer to fertilize the field, and opening the interception of the upstream of the river after the sludge is cleaned;
E) and a sewage treatment plant is established at the downstream of the river water area, and domestic sewage and industrial sewage in the city are purified by the sewage treatment plant and then discharged into the river.
3. The method for restoring the ecology of a watershed according to claim 1, wherein the method comprises the following steps: in the mode A), the height of each step is 15-20 cm, the width is 20-25 cm, in the mode B), the large-scale tree crown trees comprise one or more of albizia trees, camphor trees and paulownia trees.
4. The method for restoring the ecology of a watershed according to claim 1, wherein the method comprises the following steps: in the mode C), emergent aquatic plants comprise one or more of loosestrife, yellow iris, allium fistulosum, thalictrum floribundum, aquatic canna, cattail pollen and hydropiper, submerged plants comprise one or more of goldfish algae, stonecrop, racoon dog algae and potamogeton indica, and in the mode D), the types of thrown fishes comprise one or more of grass carp, silver carp, bighead carp, dace and herring, and the types of thrown benthonic animals comprise one or more of spiral shell, freshwater mussel, limnodrilus, branchionurus and corbicula fluminea.
5. The comprehensive watershed remediation technology of claim 2, wherein: in the mode C), the bioactive enzyme comprises one or more of protease, catalase and cellulase.
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