Aquatic plants are the source of carbon dioxide, and their ability in water is particularly important. Between the waters, aquatic plants thrive. When there is sufficient sunlight during the day, photosynthesis occurs, absorbing carbon dioxide, converting it into its own biomass, and releasing oxygen, which benefits aquatic organisms. At night, its respiration takes effect, consumes oxygen, and also re-releases carbon dioxide. This carbon dioxide plays a key role in the water carbon cycle.

The carbon dioxide released by aquatic plants provides a carbon source for aquatic microorganisms and plankton, helping them to multiply and metabolize. In the ecosystem, this is a delicate balance. Aquatic plant growth patterns, water environmental factors, such as temperature, light, pH, etc., all affect the amount and rate of carbon dioxide release.

If the water body is eutrophobic, aquatic plants may overmultiply, the carbon dioxide released at night will increase, or the dissolved oxygen in the water body will decrease, which will affect the survival of aquatic animals such as fish. Therefore, it is necessary to carefully maintain the ecological balance of the water body to ensure the moderate growth of aquatic plants, so that the source of carbon dioxide can exert its benefits and avoid its harm, so as to maintain the health and stability of the aquatic ecosystem.