What species is water hyacinth? Why is there an ecological imbalance?

It is a kind of water-like plant, mainly because the reproduction rate of this water hyacinth is very fast, and the nutrients absorbed are more, which is easy to cause other plants to be difficult to survive, so it will affect the ecological balance.

Water hyacinth is a kind of aquatic plant in the family Zeyiaceae, the scientific name is water hyacinth, and it has purple flowers. Originally, the water hyacinth was introduced as an ornamental flower. However, since there are no natural predators in the country, that is, no animal actively feeds on it, it becomes wild and reproduces rapidly.

It can be propagated through axillary buds, and the creeping branches are relatively long, which can be easily broken, and new independent plants can grow when placed in water.

Water hyacinth, also known as phoenix eye blue, belongs to the genus Phoenix-eye blue in the family Rainbow flower in monocots, and is an aquatic herbaceous plant. Although water hyacinth has certain benefits, its growth rate is too fast, which not only squeezes the growth space of other plants, but also blocks rivers and endangers agricultural production.

Is water hyacinth an aquatic plant?

Water hyacinth is an aquatic plant and also belongs to the water plant. It generally prefers to grow in shallow waters, especially those with low flow rates, so it is not a terrestrial plant. Water hyacinth generally grows in water or soil, and other rivers, ponds, streams, and paddy fields are also suitable for water hyacinth.

It is an aquatic plant that often grows in water.

What is the plant category of water hyacinth.

The official name of water hyacinth is water hyacinth, also known as water hyacinth. It is a type of angiosperm because its seeds are covered with a pericarp and are withered so that they do not belong to gymnosperms. In addition, it is also a herbaceous plant, which is a good plant to beautify the environment and purify water quality.

The shape and color of the water hyacinth.

The flowers of water hyacinth are mostly polygonal and trumpet-shaped, and the color is very bright and beautiful. The color of the leaves is a bit dark green. However, water hyacinth is a double-sided organism and is not suitable for planting in large stool areas. Generally, a small amount of water hyacinth can be planted in the pond.

The flower stem is solitary, spike-like, with 6-12 flowers, the perianth is 6-lobed, purple-blue, and another lobe is larger, ** with bright yellow spots. The flowers are bisexual, 6 males, 1 male, the flower column is slender, and the ovary is superior.

Water hyacinth is also called phoenix eye blue. The fibrous roots are well developed and brownish-black. The stems are extremely short and the creeping branches are pale green.

The leaves are clustered at the base, rosette-like; The leaves are rounded, with a dark green surface; petioles vary in length, with many polygonal columnar cells composed of air cells, vascular bundles scattered throughout, yellow-green to green; petioles with sheath-like yellow-green bracts at the base; The flowers are multi-edged; Spikes usually have 9-12 flowers; petals purplish-blue, corolla slightly symmetrical on both sides, pale purplish-red on all sides, blue in the middle, 1 yellow spot in the blue **, the base of the tepal is combined to form a tube; stamens attached to the tepal tube; glandular hairs on the filaments; anthers blue-gray; pollen grains yellow; Ovary long pear-shaped; The columella is about 2 cm long; Stigma densely covered with glandular hairs. Capsule ovate. The flowering period is from July to October, and the fruiting period is from August to November.

Likes warm, moist, sunny environments and is very adaptable. The suitable water temperature is 18-23 °C, and it can grow when it exceeds 35 °C, and the temperature stops growing when it is lower than 10 °C; It has a certain cold resistance. It likes to be born in shallow water, but it can also grow in a body of water with a small flow velocity, and drift with the water.

Breeds rapidly. After flowering, the flower stems bend into the water to grow, and the ovary develops and expands in the water.

Native to Brazil. It is widely distributed in the Yangtze River and Yellow River basins of China and the provinces of South China. Born in ponds, ditches and rice paddies at an altitude of 200-1500 meters. It has also grown widely in tropical Asia.

Solution: (1) Fill in 8,1024,2n in turn, such as ** day 5 10 15 .... 50 … 5n

Total number of plants 2 4 8 .... 1024 … 2n

2) When n=13, 10 213=81920 When n=14, 10 214=163840 When n=15, 10 215=327680 When n=16, 10 216=655360 When n=15, 10 215 33 (ten thousand) 5n=75 Answer: There are about 330,000 water hyacinths in 75 days

Yes, the ability to reproduce is strong and fast.

Water hyacinth is very fond of fertilizer, especially nitrogen fertilizer, when the nutrient content of the water layer is high, the plant is tall, the root system is short, the flowering is less, the reproduction is fast and the yield is high; When the nutrient content is low, the plant is small, the root system is long, the leaf color is yellow, the gourd is purple, it is easy to flower, and the yield is low.

Water hyacinth likes temperature, can grow in the range of 0 40, 13 or more begin to reproduce, 20 or more growth accelerates, 25 32 grows the fastest, 35 or more slows down, and 43 or more gradually dies.

Water hyacinth has a low natural seed setting rate, and can continuously grow creeping branches from the rhizosphere to form new plants and carry out asexual reproduction. Because it likes temperature and humidity, it is not resistant to frost, and the seedlings are often covered with plastic film or greenhouse insulation, and can also be irrigated with factory waste water and hot spring water to protect seedlings. In spring, when the temperature is around 13, the seedlings begin to grow and can be moved to the surface of the water one after another.

In order to prevent the loss of seedlings, sub-grid enclosure is often used. When the temperature rises to 25 30, a single plant can propagate to 10 40 plants in 1 month, and up to 80 plants in 1 month under the condition of fertilizing water quality. When propagating with seeds, it is advisable to soak the seeds for 5 days and then sow them on moist soil.

Under the condition of 25 30 days, germination takes 5 to 10 days. When the seedlings have 7 or 8 leaves, they can be moved to water for cultivation.

The root system of water hyacinth has strong absorption capacity and can enrich nutrients in water. Fresh grass contains nitrogen, phosphoric acid, potassium oxide, crude protein, crude fat, crude fiber, nitrogen-free extract, ash, moisture. In addition to being used as pig feed and compost, it can also be used as an indicator plant to monitor the level of arsenic contamination in water bodies because it is sensitive to arsenic.

When arsenic is present in the water body, water-stained green spots appear at the tip of the leaves, and then the lesions expand, and the leaves lose water and wither and turn yellow. Because it has the function of enriching heavy metals such as zinc, lead, mercury, nickel and cadmium in water and removing suspended solids in water, it can be used to purify domestic sewage and industrial wastewater, but the re-pollution caused by plant residue decay must be properly solved. It can also be used as an ornamental plant.

However, when it grows too vigorously, it often blocks the river and becomes a pest weed.

Summary. Hello, dear, yes. Effective management of water hyacinth can increase the number of species in the community.

Water hyacinth is an invasive alien plant that occupies the ecological niche of waters, robs nutrients and light resources, and makes it difficult for other plants to grow and reproduce, thus reducing the diversity of aquatic life. Therefore, effective management of water hyacinth can restore the ecological balance of the waters, create good habitat conditions, provide more living space and resources for other aquatic organisms, and thus increase the number of fallen species. For the treatment of water hyacinth, physical, chemical and biological methods can be adopted, such as mechanical mowing, biological control, and the use of environmental conditions of artificial lakes.

In the process of treatment, it is necessary to pay attention not to destroy the habitat of other aquatic organisms and avoid secondary pollution to the water body. In addition to the management of water hyacinth, aquatic biodiversity can also be protected by establishing protected areas and restricting human activities. These measures can create a good ecological environment and provide more living resources and space for aquatic organisms, thereby promoting the increase of the number of fallen species.

This is the third question of this question.

Hello, dear, yes. Effective management of water hyacinth can increase the number of species in the community. Water hyacinth is an invasive alien plant that occupies the ecological niche of waters, robs nutrients and light resources, and makes it difficult for other plants to grow and reproduce, thus reducing the diversity of aquatic life.

Therefore, effective management of water hyacinth can restore the ecological balance of the waters, create good habitat conditions for Yuannachang, and provide more living space and resources for other aquatic organisms, thereby increasing the number of fallen species. For the treatment of water hyacinth, physical, chemical and biological methods can be adopted, such as mechanical mowing, biological control, and the use of environmental conditions of artificial lakes. In the process of treatment, it is necessary to pay attention not to destroy the habitat of other aquatic organisms and avoid secondary pollution to the water body.

In addition to the management of water hyacinth, aquatic biodiversity can also be protected by establishing protected areas and restricting human activities. These measures can create a good ecological environment and provide more living resources and space for hail aquatic organisms, thereby slowing down the disturbance and increasing the number of fallen species.

Pro, will increase.

Because water hyacinth is an invasive alien species, it will occupy water resources, inhibit the growth of other aquatic plants, and lead to the reduction of aquatic vegetation, which will lead to a decrease in the number of aquatic animals and the destruction of the ecological environment. If water hyacinth is effectively managed, the diversity of the aquatic biome can be restored. After water hyacinth is removed, other aquatic plants have more space and nutrients to grow, providing more food and habitat, attracting more water finger old animals and increasing biodiversity.

In addition, the removal of water hyacinth can reduce the decomposition of organic matter in the water body, thereby reducing water pollution, improving the water environment, and promoting the healthy development of aquatic ecosystems.

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Analysis: Water hyacinth is also known as water hyacinth, water floating lotus, native to the tropical regions of South America, living in still water containing organic matter, rapid reproduction, seeds can live for 5 to 20 years. One mu can grow 130,000 trees, with a yield of up to 580,000 catties, and is listed as one of the world's top ten pests of aquatic plants.

Its color is very similar to that of green vegetables, with rounded leaves and swollen petioles, showing a gourd body. The vitality is very strong, as long as the seeds are sprinkled in the water conservancy, there is no need to ask, and it will grow naturally. The growing season is in December every year, and the growth pattern is olive-shaped.