Habitat restoration structure of tidal wetland

Abstract

The invention discloses a habitat restoration structure of a tidal wetland and belongs to the habitat restoration technology. According to the technical scheme, the structure comprises an outer dam, an inner dam, an outlet culvert and an inlet culvert. The inner side of the inner dam is provided with a restoration area, and tidal water flow exists on the outer side of the inner dam; the restoration area is between the outer dam and the inner dam; the outer dam is higher than the inner dam; the inlet culvert is formed in the high position of the inner dam; the outlet culvert is formed in the low position of the inner dam; the bottom elevation of the inlet culvert is higher than the average tide level of the tidal water flow, and the top elevation of the inlet culvert is lower than the average tidal level of the tidal water flow; the bottom elevation of the outlet culvert is higher than the average tidal level of the tidal water flow, and the top elevation of the outlet culvert is lowerthan the average tide level of the tidal water flow; and a water gate is arranged at an outer outlet of the outlet culvert, so that water in the restoration area can flow out from the outlet culvert but cannot flow into the restoration through the outlet culvert. By applying a simple culvert structure, tides are reduced, the tide evolutionary rule of the tidal wetland is restored, and then the ecological environment of a tidal habitat is restored.

Description

technical field [0001] The invention relates to a habitat restoration technology, in particular to a habitat restoration structure of an estuary tidal wetland. Background technique [0002] Tidal wetland ecosystems, as the interface between land and coastal waters, play an important role in maintaining and improving water quality and promoting the cycle of biogeochemical C, N, and P in estuaries. A complete tidal wetland ecosystem can maintain the diversity of habitats and promote the cycle of energy and nutrition. It is an important habitat for many birds, fish and benthic organisms. Healthy tidal habitat wetland ecosystems have enormous environmental benefits. However, with the rapid development of my country's economy, the demand for land use in coastal cities is increasing day by day, and coastal cities have begun to carry out siltation promotion enclosures and land reclamation projects one after another. While alleviating the human-land conflict caused by regional urb...

AI Technical Summary

Problems solved by technology

However, the above-mentioned technical solutions all have problems such as large investment in implementation and insufficient effect of habitat restoration on bird habitats.

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