A construction method of shoal wetland considering earth volume balance and habitat diversity

Abstract

The invention provides a shoal wetland construction method considering the balance of earthwork and habitat diversity, belonging to the technical field of ecological protection and restoration. Identification and analysis based on remote sensing data; 2) Field investigation of the restoration area, mainly focusing on the topography, the size of the embankment and the wall and the growth of local native plants; 3) Topographic scheme selection, select the terrain construction scheme, and select the size; 4) Terrain construction; 5 ) The three-dimensional configuration of vegetation, the vegetation is considered from the perspective of emergent plants, floating plants and submerged plants. Through the above design, the present invention aims at the transformation of lake dykes and ridges, uses terrain to create a water-land transition zone, improves lake flood discharge capacity, restores lake wetland habitat, enhances biodiversity, improves ecosystem stability, and can prevent and reduce Ecological problems of ebb and flow zones caused by changes in water level.

Description

technical field [0001] The invention belongs to the technical field of ecological protection and restoration, and in particular relates to a shoal wetland construction method considering earth volume balance and habitat diversity. Background technique [0002] The wetland ecosystem has a variety of ecological service functions such as slowing floods and stagnation, regulating climate, and maintaining biodiversity. It is one of the three major ecosystems in the world together with oceans and forests. As an important part of natural wetlands, lake wetlands are showing a tendency of shrinking wetland areas and destroying ecological functions due to the impact of climate change and strong human social activities. Artificial reclamation is an important reason for the shrinkage of the major lakes in my country. According to statistics, due to the impact of artificial reclamation, the water surface area of ​​Dongting Lake has increased from 4350km2 in 1949. 2 Reduced to 2691km in ...

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a shoal wetland construction method that considers the balance of earth volume and habitat diversity, which can solve the problem of poor flood flow caused by embankment and embankment of lake wetlands and eliminate the need for earth volume transportation. Considering the balance of earthwork and the construction of shoal wetlands with stable bank slopes, it can form a land-water transition zone while eliminating disorderly enclosures. The setting of water depth gradients provides suitable conditions for various animals and plants such as wading birds and wetland vegetation. Habitat, and ultimately achieve the effect of improving the lake's flood discharge capacity and biodiversity

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