List the landscape ecological aquatic plants that have improved water pollution and their roles?

Aquatic plants that purify water quality.

1. Reed: Poaceae reed, sowing or dividing propagation. It has a good effect on purifying water quality, such as arranging reeds on the natural water bank, which has a unique wild interest.

2. Lotus: Nymphaeaceae is a perennial water-growing plant, branched or seeded for propagation. The lotus flower leaves are delicate and fragrant, and it is a good plant material for beautifying the water surface and decorating pavilions or potted ornaments.

3. Duckweed, also known as green weed: duckweed can absorb and accumulate a large number of heavy metal elements in the coal washing wastewater of power plants, and can effectively absorb, accumulate and decompose nutrients and a variety of organic pollutants in the wastewater.

4. Shalves: Cyperaceae grass genus, perennial roots are upright and watery herbs, the stems are tall and straight, verdant and green. Its variant flower leaf shallot, with yellow ring spots on the stem, has a certain ornamental value.

Shallots are more multiplied than branch propagation in early spring, and shallow water should be used in the early stage of planting. The shallot stems are tall and green, and are often used for water greening or shore decoration.

5. Cattail: Cattail genus, perennial marsh herb, multiplication. The sticks can be cut or dried.

Duckweed. Principles of the configuration of water features and aquatic plants.

1. The distance between aquatic plants and the water's edge should be far and near, sparse and dense, avoid planting at equal distances along the edge, and leave the necessary perspective line;

2. It is necessary to pay attention to the coordination between the three-dimensional contour line of the plant community configuration and the style of the waterscape;

3. The mirror effect of the water surface should also be considered, and the water surface plants should not be too crowded, generally not more than one-third of the water surface, so as not to affect the reflection effect of the water surface and the aesthetic effect of the water body itself; The water surface that has little effect on vision can increase the density of plants to form a green landscape;

4. The spread of planted plants should be strictly controlled, and an isolated green belt can be set up, or they can be planted in a tank and put into water. When applying aquatic plants for water greening, it is necessary to first select good materials, and strive to achieve both landscape effect and effective water purification; Secondly, the plant configuration should pay attention to the aesthetic principles of the garden.

(ABC) and other plants have a strong ability to deal with water pollution.

a.Hyacinthb.Cattailsc.Reedsd.Pothos

Plants have a strong treatment effect on water pollution

There are many kinds of plants suitable for treating sewage, such as cattails, water hyacinths, water chestnuts, etc.

Cattail is resistant to high concentrations and heavy metals of celery, has strong adaptability, fast growth and strong enrichment ability, so it is now more used in the treatment of industrial and mining wastewater pollution only leakage environment. And it can also effectively purify phosphorus, nitrogen, CODCR, BODS, total suspended solids and other pollutants in urban domestic sewage and industrial and mining wastewater.

Water hyacinth scientific name phoenix eye blue, asexual reproduction, fast reproduction. Phoenix's blue is a good plant for monitoring environmental pollution, it can monitor whether arsenic is present in water, and can also purify harmful substances such as mercury, cadmium, and lead in water.

Water chestnut Water chestnut is suitable for purifying water bodies in rivers where the water flow is not fast. Because once these aquatic plants are eutrophicated and absorb the nitrogen, phosphorus, and carbon in the water, they will grow very quickly, and the speed can be described as "amazing".

Cattail is resistant to high concentrations of heavy metals, has strong adaptability, fast growth and strong enrichment ability, so it is now more used in the treatment of industrial and mining wastewater polluted environments. And it can also effectively purify phosphorus, nitrogen, CODCR, BODS, total suspended solids and other pollutants in urban domestic sewage and industrial and mining wastewater.

Water hyacinth scientific name phoenix eye blue, asexual reproduction, fast reproduction. Phoenix's blue is a good plant for monitoring environmental pollution, it can monitor whether arsenic is present in water, and can also purify harmful substances such as mercury, cadmium, and lead in water.

Water chestnut Water chestnut is suitable for purifying water bodies in rivers where the water flow is not fast. Because once these aquatic plants are eutrophicated and absorb the nitrogen, phosphorus, and carbon in the water, they will grow very quickly, and the speed can be described as "amazing".

) and other plants have a strong ability to deal with water pollution.

a.The phoenix eye raises the finger lotus.

b.Cattail sedan chair.

c.Reedsd.Pothos

Correct answer: ABC

<> example of submerged plants.

Submerged plants are important producers in water bodies and important regulators of water ecological balance. Submerged plants can not only absorb nutrients, but also affect the material exchange balance between the water body and the sediment, and can also significantly inhibit the growth of algae.

Examples of water-growing plants.

Water-lifting plants are the main types of plants that construct waterfront landscape system and wetland vegetation system, which not only have good landscape functions and provide habitat conditions for other organisms, but also have the functions of assimilating and absorbing pollutants, intercepting and filtering pollutants.

Examples of floating-leaved plants.

Considering the permeability and fluidity of water, a large area of floating leaf plant ornamental area is constructed in the water area with high landscape effect requirements or in the area with frequent human activities.

1.Pollution of inorganic substances such as acid, alkali and salt The pollution of inorganic substances such as acid, alkali and salt in water bodies mainly comes from industrial wastewater and acid rain such as metallurgy, chemical fiber, papermaking, printing and dyeing, oil refining, pesticides, etc. When the pH of the water body is less than or greater than that, it will adversely affect aquatic organisms, and in severe cases, cause the extinction of fish and shrimp.

The increase in the salt content of water bodies affects the quality of industrial, agricultural and domestic water, and the use of it to irrigate farmland will cause land salinization.

2.Heavy metal pollution The heavy metals that pollute the water are: mercury, cadmium, lead, chromium, vanadium, cobalt, barium, etc.

Among them, mercury is the most toxic, and cadmium, lead, and chromium are also more toxic. Heavy metals are discharged with wastewater in the production process of factories and mines, and cannot be degraded by microorganisms after entering the water body.

3.Ozone-depleting substances pollute industrial wastewater such as domestic sewage, food processing, and papermaking.

Preventing and controlling water pollution and improving the ecological environment is an important task, which requires effective measures to be taken. First of all, it is necessary to strengthen the monitoring of water pollution sources, discover pollution sources in a timely manner, and take effective measures to control the discharge of pollution sources. Second, it is necessary to strengthen the control of water pollution and adopt effective technical measures, such as sewage treatment, pollutant precipitation, and adsorption of pollutant residues, so as to reduce the discharge of pollutants.

In addition, it is also necessary to strengthen the prevention of water pollution and take effective measures, such as improving sewage treatment facilities, improving sewage discharge standards, and improving sewage discharge management, so as to prevent the discharge of pollutants. Personal tips: The prevention and control of water pollution and the improvement of the ecological environment is an important task, which needs to be achieved by taking effective measures, strengthening the monitoring of water pollution sources, discovering pollution sources in a timely manner, and taking effective measures to control the discharge of pollution sources, strengthening the control of water pollution, taking effective technical measures to detect hail, strengthening the prevention of water pollution, and taking effective measures to prevent the discharge of pollutants.

Garden water bodies are used for a wide range of purposes.

Copy pan, the main bai can be summarized into the following 5 aspects:

1) Landscape of garden water bodies. du such as fountains, waterfalls, ponds, etc., all dao

With water as the theme, water has become an important component of the garden, and it has also triggered endless poetic feelings. Ice lanterns and ice sculptures are also a form of viewing water under abnormal temperature conditions.

2) Improve the environment, regulate the climate, and control noise. Mineral water has a medical effect, and negative ions have a cleansing effect, both of which cannot be ignored.

3) Provide venues for sports and entertainment activities. Such as swimming, boating, ice skating, model boats, surfing, rafting, water parks, etc.

4) Collect and drain natural rainwater. This function will save a lot of investment in underground pipelines in carefully designed gardens, and create good site conditions for plant growth; On the contrary, sewage backfilling and flooding seedlings will cause unexpected losses.

5) Water for protection, isolation and disaster prevention. For example, moats and isolated rivers are the most natural and economical way to use the water surface as a spatial isolation. By extension, the surface of the water creates a circuitous line of the garden.

Looking at each other across the shore, it is impossible to look at each other. Water is indispensable for fighting fires and droughts. Urban garden water bodies can be used as backup water for fire fighting, and suburban garden water bodies and ditches are natural pipe networks for drought relief and disaster relief.

Purify the air and increase air humidity.

Summary. From the perspective of ecology, the process of water pollution hazards is as follows. 1. The impact of water pollution on aquatic life 1. Current status of water resources.

2. Pollution and coercion.

3. The impact of pollutants on aquatic organisms and their feedback effects: biological purification 1. Current status of water resources Water is a precious natural resource for human beings, because life on earth is inseparable from water.

From the perspective of ecology, the process of water pollution hazards is described.

There are also basic characteristics and solutions to be considered.

From the perspective of ecology, the process of water pollution hazards is as follows. 1. The impact of water pollution on aquatic life 1. Current status of water resources.

2. Pollution and coercion.

3. The impact of Lubi pollutants on aquatic organisms and their feedback effect -- biological purification 1. Current status of water resources Water is a precious natural resource for human beings, because life on the earth is inseparable from water.

Ecology of Water Pollution. ppt, (1) data of acute toxicity test The results of acute liquid toxicity test are not enough to predict the safe concentration of poisons to the ecosystem, and it is not scientific to try to put forward water quality standards from the data of acute toxicity tests.