Perennial floating herbs. Because there is a big bubble like a gourd between the root and the leaf, it is also called water hyacinth. The stems and leaves hang on the water, and the tillers crawl on the water. Colorful, beautiful. The leaves are dark green. A good plant with developed fibrous roots, rapid tillering and reproduction, extensive management and purified water quality. ?

2. Mangroves?

The ecological benefits of mangroves are their functions of preventing wind and waves, promoting siltation and protecting beaches, strengthening dikes and protecting dikes, and purifying seawater and air. ?

3. Reid?

Aquatic plants, put in water. Its main functions can be summarized as follows: water purification; Create living space for creatures (birds, fish); Improve the landscape.

4. At present, there are more than 20 kinds of aquatic plants, such as Zizania latifolia, Phragmites australis, Canna, Echinacea purpurea, Juncus Juncus, sand grass, etc. They can not only effectively absorb nitrogen, phosphorus and other elements in the water body, but also purify the water quality and beautify the environment, and the cost of this plant pollution control technology is reduced by 30% compared with other treatment methods.

Water quality is short for water quality. It marks the physical (such as chromaticity, turbidity, smell, etc.). ), chemical (inorganic and organic content) and biological (bacteria, microorganisms, plankton, benthos) characteristics and the water they constitute.

In order to evaluate water quality, a series of water quality parameters and standards are stipulated. Such as drinking water, industrial water and fishery water.

Physical and chemical characteristics and dynamic characteristics of natural water bodies not polluted by human activities. Physical characteristics mainly refer to the temperature, color, transparency, smell and taste of water. The chemical properties of water are determined by gases, ions, molecules, colloidal substances, suspended solids, microorganisms and their contents dissolved and dispersed in natural water.