Reservoir and pond hydro-fluctuation belt ecological restoration structure based on bionic micro-cave habitat transformation and restoration method thereof

Abstract

The invention discloses a reservoir and pond hydro-fluctuation belt ecological restoration structure based on bionic micro-cave habitat transformation and a restoration method thereof, and relates to the technical field of hydro-fluctuation belt restoration. The restoration structure comprises a hydro-fluctuation belt and a bionic cave structure arranged on the hydro-fluctuation belt, the slope of the upstream face of the hydro-fluctuation belt is larger than or equal to 60 degrees, and a seed bank is placed in the bionic cave structure. According to the restoration structure, a shallow pit type bionic cave habitat is utilized, porous structure shallow surface transformation is carried out on the hydro-fluctuation belt, and a bionic cave environment suitable for plant growth of the reservoir and pond hydro-fluctuation belt is created. The bionic cave structure retains part of soil moisture and part of nutrients of the hydro-fluctuation belt, the nutrients in part of water are intercepted, growth conditions are provided for the seed bank of the hydro-fluctuation belt, the habitat of the bionic cave of the reservoir and pond hydro-fluctuation belt is more beneficial to plant survival and biological habitat, and the bionic habitat is constructed so as to achieve the ecological restoration effect.

Description

technical field [0001] The invention relates to the technical field of wetland restoration, in particular to an ecological restoration structure and restoration method of a reservoir and pond water-fluctuation zone based on bionic micro-cave habitat transformation. Background technique [0002] With the development of social economy and the gradual deepening of the construction of ecological civilization, the state has strengthened the protection and restoration of wetlands, and the protection and restoration of wetland ecology has become a crucial content. With the promotion of high-quality development and the continuous improvement of ecological quality, the restoration technology requirements in the field of wetland ecological restoration are getting higher and higher. Among them, the research on the ecological restoration method of the reservoir-tang type wetland water-fluctuation zone has always been a difficult problem to be overcome in this field. Therefore, the ecol...

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Problems solved by technology

[0003] At present, the ecological restoration methods for the reservoir-tang type wetland drawdown zone are mostly based on certain terrain transformation, and the method of restoring a single vegetation community is used. However, due to factors such as water level elevation and flooding stress, the growth of vegetation is affected, and the restoration effect has not been achieved. reach the ideal state

Especially for reservoir and pond slopes with large water level changes, the repair effect is not obvious. In addition, there is "A Method for Ecological Restoration and Water Quality Purification Efficiency Improvement of River Fluctuation Zone in Reservoir" in the existing technology. The core of this technical method is It is to use the side slope of the water-fluctuating zone of the reservoir to transform the intercepting weir and create a beach for the growth of aquatic plants. This technical method is suitable for the treatment of the water-fluctuating zone of rivers entering the reservoir with gentle slope terrain.

However, it is not applicable to the sinking zone of other steeper pond wetlands in the reservoir

The related technology "Ecological Restoration and Soil and Water Conservation Method of Wide Gentle Slope Fluctuation Zone of Large-scale Water Conservancy Project" is used in the ecological restoration of wide gentle slope hydrofluctuation zone of large-scale water conservancy project, but it is not applicable to the ecological restoration of general hydrofluctuation zone

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