1. The purification effect of plant roots, artificial plants and attached biofilms on water quality.
2. The purification effect of plants on water quality.
Plants on floating islands can directly or indirectly absorb and utilize dissolved nitrogen, phosphorus and other nutrients in the water body, assimilate them into components of the plant body, or convert them into carbon dioxide and carbon dioxide through volatilization, metabolism or mineralization. Water, or transformed into non-toxic
"Intermediate metabolites of sexual action are stored in plant cells to achieve the purpose of removing pollutants.
3. The symbiosis of plants and microorganisms can purify water.
The mycorrhizal fungi in the plant root zone on the floating island form a symbiosis with plants, and have their own unique enzyme pathway to degrade pollutants that cannot be transformed by bacteria alone.
4. Algae inhibition and oxygen supply.
Floating bed can effectively shade the sun, and floating bed plants (water peanut, water lotus, myriophyllum, hornwort, calla lily, chara, calamus and reed, etc.) can secrete algae chemicals and control the growth and reproduction of planktonic algae. During the photosynthesis process of floating bed plants, a large amount of oxygen is released into the water body through the stems, leaves and roots, which can increase the dissolved gas content of the water body and promote the purification of pollutants.
5. The role of changing the flow field.
After setting up a floating bed in the water body, it can effectively slow down the impact of wind and waves, reduce water short circuits, and promote water purification and ecological restoration.
6. The role of providing habitat.
The floating field type ecological floating island can provide a good habitat for higher aquatic animals, plants and birds (especially in the urban habitat "surrounded by humans", providing a "water home" for birds), which is conducive to increasing water biodiversity , Promote the improvement of water habitat and ecological restoration.
7. The role of landscape construction.
Because a large number of plants are planted and grown on the floating field-shaped floating island, it is called "water garden" and has a good design and beautification effect.
