What is a wetland? What are the conditions for its formation? Can it be manufactured artificially?

Because there is no clear boundary between wetlands and land waters. Different scientific fields have different emphases on wetland research, so there have been great differences on the definition of wetland. Internationally, wetlands are widely defined as natural or artificial long-term swamps, peatlands or waters. The water is still or flowing, and the water depth is no more than 6 meters at low tide. This definition is broader for the whole wetland, which is beneficial to the protection and management of wetland.

What are the conditions for the formation of wetlands? Is it feasible artificially?

The formation of wetlands should meet three basic conditions. First, the wet areas need abundant precipitation, low temperature and less evaporation of water vapor, which is beneficial to surface water accumulation. Second, the surface topography is low, the drainage is not particularly smooth, and there are many rivers on the surface that meet each other. Third, there is an aquifuge or frozen soil underground, which can ensure that the surface water does not fall to the underground river. These three conditions are the necessary conditions for a region to develop into a wetland, and the formation of a wetland is an extremely long and special process. As far as the current science and technology are concerned, it is still difficult for us to transform the geological structure. Therefore, wetlands cannot be created artificially, and we must learn to protect existing wetlands.

What are the extremely important functions of wetlands for the earth and human beings?

There are a lot of organic matter in wetlands, which can retain most of the carbon on the earth. It reduces the content of carbon dioxide in the earth's air, and there is a huge carbon pool on the earth. This function regulates the carbon content of the earth in a certain sense. What is a wetland for human beings? Kidney of the earth? The title of. The diversity of wetlands provides a good living environment for human beings. It is a natural reservoir, which can store floods, replenish groundwater and protect the coast. It is also a natural humidifier, a natural sewage treatment plant and the cradle of life on earth.

How to protect wetlands?

Protecting wetlands should be carried out without destroying the original environment. Establish wetland reserves, protect existing natural wetlands, and return farmland to forests and grasslands for damaged wetlands. Take scientific engineering measures to restore degraded wetlands. Protect water resources from industrial sewage pollution, and properly replenish water to the already water-deficient wetland environment. Develop the cultural and artistic value of wetlands, and let more people pay attention to wetlands and participate in wetland protection.