Willow-leaf embankment habitat restoration method based on temporary nutrient storage

Abstract

The invention discloses a willow-leaf embankment habitat restoration method based on temporary nutrient storage. The method comprises the following steps that S1, the form of a current sand embankment is sequentially transformed to form a willow-leaf-shaped sand embankment; S2, gabion edging is conducted on the two sides of the willow-leaf-shaped sand embankment, willow branches are cut in gabions, nutrients carried by incoming water are retained, and a willow-leaf embankment habitat is formed; S3, multi-layer reinforcement is conducted on the embankment head upstream slope face of the willow-leaf embankment habitat, and temporary nutrient storage is conducted; and S4, water retention and salt accumulation are conducted through the method from the step S1 to the step S3, and willow-leaf embankment habitat restoration is completed. According to the willow-leaf embankment habitat restoration method, the current sand embankment is ecologically transformed on site, different forms of temporary nutrient storage areas are formed, the growth foundation of aquatic vegetation is enhanced, the quality of habitats for activities such as foraging, resting and enemy avoiding of aquatic animals is improved, and finally different forms of willow-leaf embankment habitats in river channels are formed.

Description

technical field [0001] The invention belongs to the technical field of ecological environment restoration, and in particular relates to a habitat restoration method for willow embankment habitat based on temporary nutrient storage. Background technique [0002] There are many sand pits left in the sandy river due to historical sand mining. The matrix of the sand pit is soft, the sand embankment is easy to collapse, and it is difficult to plant aquatic vegetation and aquatic animals in the process of ecological restoration of the river, which seriously affects the restoration and reconstruction of the river ecosystem. The defect of the existing river ecological restoration technology is that it uses methods such as pulling through the sand pit and leveling the sand embankment to form a homogeneous sandy river course, ignoring the in-situ reconstruction of the sand pit, and giving up various biological habitats. Contents of the invention [0003] The purpose of the present ...

AI Technical Summary

Problems solved by technology

The matrix of the sand pit is soft, the sand embankment is easy to collapse, and it is difficult to plant aquatic vegetation and aquatic animals in the process of ecological restoration of the river, which seriously affects the restoration and reconstruction of the river ecosystem

The defect of the existing river ecological restoration technology is that it uses methods such as pulling through the sand pit and leveling the sand embankment to form a uniform sandy river course, ignoring the in-situ reconstruction of the sand pit, and giving up the various biological habitats

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